Prepared by Aram Omer Sorkan amp Karzan Sdiq
Salih
Plant Responses amp Movments
University of Sulamani
School of Science
Department of Biology
Purposes In this presentation we want to describe the Responses and Movements of the plant
Describe tropisms as Plant Response Describe Nastic Movements as Plant Movement
Plant ResponseTropism A tropism is a biological phenomenon indicating growth or turning movement of a
biological organism usually a plant in response to an environmental stimulus
OR The responses of plants to their environment
OR a plants directional growth response to a physical stimulus
Types of Tropism
1Phototropism
2Gravitropism
3Thigmotropism
4Chemotropism
5Hydrotropism
6Thermotropism
1Phototropism
Phototropism is the growth response of a plant in response to light direction
Positive Phototropism Vs Negative Phototropism
2Gravitropism
Geotropism is the growth response of a plant in response to gravity
Positive Geotropism Vs Negative Geotropism
Thigmotropism is the growth response of a plant to physical contact (touch)
Positive Thigmotropism Vs Negative Thigmotropism
3Thigmotropism
4Chemotropism
Chemotropism is the growth response of a plant to a particular chemical Roots
grow toward useful minerals in the soil but away from acids
Positive Chemotropism Vs Negative Chemotropism
5Hydrotropism
Hydrotropism is the growth response of a plant to water
Roots exhibit Positive Hydrotropism
6Thermotropism
Thermotropism is the movement of plant or their parts in response to changes in the
external stimulus of temperature
ExampleRhododendronCold temperature
Hot temperature
NASTIC MOVEMENTS
The non-directional movements of the plant in response to external stimuli are
called nastic movement
The direction of the movement is determined by the structure of the plant organ
itself It is not determined by an external stimulus
Types of nastic movements
1-Nyctinasty or Nyctinastic (sleep movements)
a Photonasty
b Thermonasty
c Epinasty amp Hyponasty
2-Seismonastic movements
3-Haptonastic or Thigmonastic movements
NASTIC MOVEMENTS
1-Nyctinasty Movement This is induced by diurnal variations in light and temperatureThe diurnal movements
PhotonastyThe principle stimulus of Photonasty is the photoperiod
Day Night
ExampleOxalis triangularis (Shamrock flower)
Photonasty
1-Nyctinasty Movement
Example Cestrum nocturnum (Night Jasmine)
Day Night
ThermonastyIt takes place due to temperature changes
1-Nyctinasty Movement
Example Tulipa clusiana (Tulip flower)
Rise Temperature Low Temperature
1-Nyctinasty Movement
Epinasty Vs Hyponasty
Epinasty Hyponasty
2-Seismonastic movements
The shock movement
Movement in plants in response to touch as well
as other forms of physical contact or mechanical
disturbance such as shaking wounding wind
raindrops and intense heat or burning
In the case of the sensitive plant (Mimosa pudica)
a leaflet leaf or group of leaves rapidly folds
and bends in response to the external stimulus
3-Haptonastic Movement
Haptonastic occurs due to stimulus of touch
plant movement in response to touch or physical contact without regard to thedirection of the stimulus Thigmonastic movements are exemplified by the closing ofthe insect-eating plant Venusrsquos flytrap (Dionaea muscipula) and the bending of theglandular hairs of sundew (Drosera sp) as a result of contact with an insect
Sundew Venusrsquos FlytrapCarnivorous Plant
References
httpbiologyboomcomnastic-movements
httpwwwpreservearticlescom2011121918563different-types-of-nastic-
movements-movement-plantshtml
httpwwwcropsreviewcomplant-movementshtml
MOORE R CLARK WD VODOPICH DS 2003 Botany 2nd ed New York NY
McGraw-Hill p 443-454
httpleavingbionetplant20responseshtm
Thank YouhellipAny Question
Any Question Any Question
Purposes In this presentation we want to describe the Responses and Movements of the plant
Describe tropisms as Plant Response Describe Nastic Movements as Plant Movement
Plant ResponseTropism A tropism is a biological phenomenon indicating growth or turning movement of a
biological organism usually a plant in response to an environmental stimulus
OR The responses of plants to their environment
OR a plants directional growth response to a physical stimulus
Types of Tropism
1Phototropism
2Gravitropism
3Thigmotropism
4Chemotropism
5Hydrotropism
6Thermotropism
1Phototropism
Phototropism is the growth response of a plant in response to light direction
Positive Phototropism Vs Negative Phototropism
2Gravitropism
Geotropism is the growth response of a plant in response to gravity
Positive Geotropism Vs Negative Geotropism
Thigmotropism is the growth response of a plant to physical contact (touch)
Positive Thigmotropism Vs Negative Thigmotropism
3Thigmotropism
4Chemotropism
Chemotropism is the growth response of a plant to a particular chemical Roots
grow toward useful minerals in the soil but away from acids
Positive Chemotropism Vs Negative Chemotropism
5Hydrotropism
Hydrotropism is the growth response of a plant to water
Roots exhibit Positive Hydrotropism
6Thermotropism
Thermotropism is the movement of plant or their parts in response to changes in the
external stimulus of temperature
ExampleRhododendronCold temperature
Hot temperature
NASTIC MOVEMENTS
The non-directional movements of the plant in response to external stimuli are
called nastic movement
The direction of the movement is determined by the structure of the plant organ
itself It is not determined by an external stimulus
Types of nastic movements
1-Nyctinasty or Nyctinastic (sleep movements)
a Photonasty
b Thermonasty
c Epinasty amp Hyponasty
2-Seismonastic movements
3-Haptonastic or Thigmonastic movements
NASTIC MOVEMENTS
1-Nyctinasty Movement This is induced by diurnal variations in light and temperatureThe diurnal movements
PhotonastyThe principle stimulus of Photonasty is the photoperiod
Day Night
ExampleOxalis triangularis (Shamrock flower)
Photonasty
1-Nyctinasty Movement
Example Cestrum nocturnum (Night Jasmine)
Day Night
ThermonastyIt takes place due to temperature changes
1-Nyctinasty Movement
Example Tulipa clusiana (Tulip flower)
Rise Temperature Low Temperature
1-Nyctinasty Movement
Epinasty Vs Hyponasty
Epinasty Hyponasty
2-Seismonastic movements
The shock movement
Movement in plants in response to touch as well
as other forms of physical contact or mechanical
disturbance such as shaking wounding wind
raindrops and intense heat or burning
In the case of the sensitive plant (Mimosa pudica)
a leaflet leaf or group of leaves rapidly folds
and bends in response to the external stimulus
3-Haptonastic Movement
Haptonastic occurs due to stimulus of touch
plant movement in response to touch or physical contact without regard to thedirection of the stimulus Thigmonastic movements are exemplified by the closing ofthe insect-eating plant Venusrsquos flytrap (Dionaea muscipula) and the bending of theglandular hairs of sundew (Drosera sp) as a result of contact with an insect
Sundew Venusrsquos FlytrapCarnivorous Plant
References
httpbiologyboomcomnastic-movements
httpwwwpreservearticlescom2011121918563different-types-of-nastic-
movements-movement-plantshtml
httpwwwcropsreviewcomplant-movementshtml
MOORE R CLARK WD VODOPICH DS 2003 Botany 2nd ed New York NY
McGraw-Hill p 443-454
httpleavingbionetplant20responseshtm
Thank YouhellipAny Question
Any Question Any Question
Plant ResponseTropism A tropism is a biological phenomenon indicating growth or turning movement of a
biological organism usually a plant in response to an environmental stimulus
OR The responses of plants to their environment
OR a plants directional growth response to a physical stimulus
Types of Tropism
1Phototropism
2Gravitropism
3Thigmotropism
4Chemotropism
5Hydrotropism
6Thermotropism
1Phototropism
Phototropism is the growth response of a plant in response to light direction
Positive Phototropism Vs Negative Phototropism
2Gravitropism
Geotropism is the growth response of a plant in response to gravity
Positive Geotropism Vs Negative Geotropism
Thigmotropism is the growth response of a plant to physical contact (touch)
Positive Thigmotropism Vs Negative Thigmotropism
3Thigmotropism
4Chemotropism
Chemotropism is the growth response of a plant to a particular chemical Roots
grow toward useful minerals in the soil but away from acids
Positive Chemotropism Vs Negative Chemotropism
5Hydrotropism
Hydrotropism is the growth response of a plant to water
Roots exhibit Positive Hydrotropism
6Thermotropism
Thermotropism is the movement of plant or their parts in response to changes in the
external stimulus of temperature
ExampleRhododendronCold temperature
Hot temperature
NASTIC MOVEMENTS
The non-directional movements of the plant in response to external stimuli are
called nastic movement
The direction of the movement is determined by the structure of the plant organ
itself It is not determined by an external stimulus
Types of nastic movements
1-Nyctinasty or Nyctinastic (sleep movements)
a Photonasty
b Thermonasty
c Epinasty amp Hyponasty
2-Seismonastic movements
3-Haptonastic or Thigmonastic movements
NASTIC MOVEMENTS
1-Nyctinasty Movement This is induced by diurnal variations in light and temperatureThe diurnal movements
PhotonastyThe principle stimulus of Photonasty is the photoperiod
Day Night
ExampleOxalis triangularis (Shamrock flower)
Photonasty
1-Nyctinasty Movement
Example Cestrum nocturnum (Night Jasmine)
Day Night
ThermonastyIt takes place due to temperature changes
1-Nyctinasty Movement
Example Tulipa clusiana (Tulip flower)
Rise Temperature Low Temperature
1-Nyctinasty Movement
Epinasty Vs Hyponasty
Epinasty Hyponasty
2-Seismonastic movements
The shock movement
Movement in plants in response to touch as well
as other forms of physical contact or mechanical
disturbance such as shaking wounding wind
raindrops and intense heat or burning
In the case of the sensitive plant (Mimosa pudica)
a leaflet leaf or group of leaves rapidly folds
and bends in response to the external stimulus
3-Haptonastic Movement
Haptonastic occurs due to stimulus of touch
plant movement in response to touch or physical contact without regard to thedirection of the stimulus Thigmonastic movements are exemplified by the closing ofthe insect-eating plant Venusrsquos flytrap (Dionaea muscipula) and the bending of theglandular hairs of sundew (Drosera sp) as a result of contact with an insect
Sundew Venusrsquos FlytrapCarnivorous Plant
References
httpbiologyboomcomnastic-movements
httpwwwpreservearticlescom2011121918563different-types-of-nastic-
movements-movement-plantshtml
httpwwwcropsreviewcomplant-movementshtml
MOORE R CLARK WD VODOPICH DS 2003 Botany 2nd ed New York NY
McGraw-Hill p 443-454
httpleavingbionetplant20responseshtm
Thank YouhellipAny Question
Any Question Any Question
1Phototropism
Phototropism is the growth response of a plant in response to light direction
Positive Phototropism Vs Negative Phototropism
2Gravitropism
Geotropism is the growth response of a plant in response to gravity
Positive Geotropism Vs Negative Geotropism
Thigmotropism is the growth response of a plant to physical contact (touch)
Positive Thigmotropism Vs Negative Thigmotropism
3Thigmotropism
4Chemotropism
Chemotropism is the growth response of a plant to a particular chemical Roots
grow toward useful minerals in the soil but away from acids
Positive Chemotropism Vs Negative Chemotropism
5Hydrotropism
Hydrotropism is the growth response of a plant to water
Roots exhibit Positive Hydrotropism
6Thermotropism
Thermotropism is the movement of plant or their parts in response to changes in the
external stimulus of temperature
ExampleRhododendronCold temperature
Hot temperature
NASTIC MOVEMENTS
The non-directional movements of the plant in response to external stimuli are
called nastic movement
The direction of the movement is determined by the structure of the plant organ
itself It is not determined by an external stimulus
Types of nastic movements
1-Nyctinasty or Nyctinastic (sleep movements)
a Photonasty
b Thermonasty
c Epinasty amp Hyponasty
2-Seismonastic movements
3-Haptonastic or Thigmonastic movements
NASTIC MOVEMENTS
1-Nyctinasty Movement This is induced by diurnal variations in light and temperatureThe diurnal movements
PhotonastyThe principle stimulus of Photonasty is the photoperiod
Day Night
ExampleOxalis triangularis (Shamrock flower)
Photonasty
1-Nyctinasty Movement
Example Cestrum nocturnum (Night Jasmine)
Day Night
ThermonastyIt takes place due to temperature changes
1-Nyctinasty Movement
Example Tulipa clusiana (Tulip flower)
Rise Temperature Low Temperature
1-Nyctinasty Movement
Epinasty Vs Hyponasty
Epinasty Hyponasty
2-Seismonastic movements
The shock movement
Movement in plants in response to touch as well
as other forms of physical contact or mechanical
disturbance such as shaking wounding wind
raindrops and intense heat or burning
In the case of the sensitive plant (Mimosa pudica)
a leaflet leaf or group of leaves rapidly folds
and bends in response to the external stimulus
3-Haptonastic Movement
Haptonastic occurs due to stimulus of touch
plant movement in response to touch or physical contact without regard to thedirection of the stimulus Thigmonastic movements are exemplified by the closing ofthe insect-eating plant Venusrsquos flytrap (Dionaea muscipula) and the bending of theglandular hairs of sundew (Drosera sp) as a result of contact with an insect
Sundew Venusrsquos FlytrapCarnivorous Plant
References
httpbiologyboomcomnastic-movements
httpwwwpreservearticlescom2011121918563different-types-of-nastic-
movements-movement-plantshtml
httpwwwcropsreviewcomplant-movementshtml
MOORE R CLARK WD VODOPICH DS 2003 Botany 2nd ed New York NY
McGraw-Hill p 443-454
httpleavingbionetplant20responseshtm
Thank YouhellipAny Question
Any Question Any Question
2Gravitropism
Geotropism is the growth response of a plant in response to gravity
Positive Geotropism Vs Negative Geotropism
Thigmotropism is the growth response of a plant to physical contact (touch)
Positive Thigmotropism Vs Negative Thigmotropism
3Thigmotropism
4Chemotropism
Chemotropism is the growth response of a plant to a particular chemical Roots
grow toward useful minerals in the soil but away from acids
Positive Chemotropism Vs Negative Chemotropism
5Hydrotropism
Hydrotropism is the growth response of a plant to water
Roots exhibit Positive Hydrotropism
6Thermotropism
Thermotropism is the movement of plant or their parts in response to changes in the
external stimulus of temperature
ExampleRhododendronCold temperature
Hot temperature
NASTIC MOVEMENTS
The non-directional movements of the plant in response to external stimuli are
called nastic movement
The direction of the movement is determined by the structure of the plant organ
itself It is not determined by an external stimulus
Types of nastic movements
1-Nyctinasty or Nyctinastic (sleep movements)
a Photonasty
b Thermonasty
c Epinasty amp Hyponasty
2-Seismonastic movements
3-Haptonastic or Thigmonastic movements
NASTIC MOVEMENTS
1-Nyctinasty Movement This is induced by diurnal variations in light and temperatureThe diurnal movements
PhotonastyThe principle stimulus of Photonasty is the photoperiod
Day Night
ExampleOxalis triangularis (Shamrock flower)
Photonasty
1-Nyctinasty Movement
Example Cestrum nocturnum (Night Jasmine)
Day Night
ThermonastyIt takes place due to temperature changes
1-Nyctinasty Movement
Example Tulipa clusiana (Tulip flower)
Rise Temperature Low Temperature
1-Nyctinasty Movement
Epinasty Vs Hyponasty
Epinasty Hyponasty
2-Seismonastic movements
The shock movement
Movement in plants in response to touch as well
as other forms of physical contact or mechanical
disturbance such as shaking wounding wind
raindrops and intense heat or burning
In the case of the sensitive plant (Mimosa pudica)
a leaflet leaf or group of leaves rapidly folds
and bends in response to the external stimulus
3-Haptonastic Movement
Haptonastic occurs due to stimulus of touch
plant movement in response to touch or physical contact without regard to thedirection of the stimulus Thigmonastic movements are exemplified by the closing ofthe insect-eating plant Venusrsquos flytrap (Dionaea muscipula) and the bending of theglandular hairs of sundew (Drosera sp) as a result of contact with an insect
Sundew Venusrsquos FlytrapCarnivorous Plant
References
httpbiologyboomcomnastic-movements
httpwwwpreservearticlescom2011121918563different-types-of-nastic-
movements-movement-plantshtml
httpwwwcropsreviewcomplant-movementshtml
MOORE R CLARK WD VODOPICH DS 2003 Botany 2nd ed New York NY
McGraw-Hill p 443-454
httpleavingbionetplant20responseshtm
Thank YouhellipAny Question
Any Question Any Question
Thigmotropism is the growth response of a plant to physical contact (touch)
Positive Thigmotropism Vs Negative Thigmotropism
3Thigmotropism
4Chemotropism
Chemotropism is the growth response of a plant to a particular chemical Roots
grow toward useful minerals in the soil but away from acids
Positive Chemotropism Vs Negative Chemotropism
5Hydrotropism
Hydrotropism is the growth response of a plant to water
Roots exhibit Positive Hydrotropism
6Thermotropism
Thermotropism is the movement of plant or their parts in response to changes in the
external stimulus of temperature
ExampleRhododendronCold temperature
Hot temperature
NASTIC MOVEMENTS
The non-directional movements of the plant in response to external stimuli are
called nastic movement
The direction of the movement is determined by the structure of the plant organ
itself It is not determined by an external stimulus
Types of nastic movements
1-Nyctinasty or Nyctinastic (sleep movements)
a Photonasty
b Thermonasty
c Epinasty amp Hyponasty
2-Seismonastic movements
3-Haptonastic or Thigmonastic movements
NASTIC MOVEMENTS
1-Nyctinasty Movement This is induced by diurnal variations in light and temperatureThe diurnal movements
PhotonastyThe principle stimulus of Photonasty is the photoperiod
Day Night
ExampleOxalis triangularis (Shamrock flower)
Photonasty
1-Nyctinasty Movement
Example Cestrum nocturnum (Night Jasmine)
Day Night
ThermonastyIt takes place due to temperature changes
1-Nyctinasty Movement
Example Tulipa clusiana (Tulip flower)
Rise Temperature Low Temperature
1-Nyctinasty Movement
Epinasty Vs Hyponasty
Epinasty Hyponasty
2-Seismonastic movements
The shock movement
Movement in plants in response to touch as well
as other forms of physical contact or mechanical
disturbance such as shaking wounding wind
raindrops and intense heat or burning
In the case of the sensitive plant (Mimosa pudica)
a leaflet leaf or group of leaves rapidly folds
and bends in response to the external stimulus
3-Haptonastic Movement
Haptonastic occurs due to stimulus of touch
plant movement in response to touch or physical contact without regard to thedirection of the stimulus Thigmonastic movements are exemplified by the closing ofthe insect-eating plant Venusrsquos flytrap (Dionaea muscipula) and the bending of theglandular hairs of sundew (Drosera sp) as a result of contact with an insect
Sundew Venusrsquos FlytrapCarnivorous Plant
References
httpbiologyboomcomnastic-movements
httpwwwpreservearticlescom2011121918563different-types-of-nastic-
movements-movement-plantshtml
httpwwwcropsreviewcomplant-movementshtml
MOORE R CLARK WD VODOPICH DS 2003 Botany 2nd ed New York NY
McGraw-Hill p 443-454
httpleavingbionetplant20responseshtm
Thank YouhellipAny Question
Any Question Any Question
4Chemotropism
Chemotropism is the growth response of a plant to a particular chemical Roots
grow toward useful minerals in the soil but away from acids
Positive Chemotropism Vs Negative Chemotropism
5Hydrotropism
Hydrotropism is the growth response of a plant to water
Roots exhibit Positive Hydrotropism
6Thermotropism
Thermotropism is the movement of plant or their parts in response to changes in the
external stimulus of temperature
ExampleRhododendronCold temperature
Hot temperature
NASTIC MOVEMENTS
The non-directional movements of the plant in response to external stimuli are
called nastic movement
The direction of the movement is determined by the structure of the plant organ
itself It is not determined by an external stimulus
Types of nastic movements
1-Nyctinasty or Nyctinastic (sleep movements)
a Photonasty
b Thermonasty
c Epinasty amp Hyponasty
2-Seismonastic movements
3-Haptonastic or Thigmonastic movements
NASTIC MOVEMENTS
1-Nyctinasty Movement This is induced by diurnal variations in light and temperatureThe diurnal movements
PhotonastyThe principle stimulus of Photonasty is the photoperiod
Day Night
ExampleOxalis triangularis (Shamrock flower)
Photonasty
1-Nyctinasty Movement
Example Cestrum nocturnum (Night Jasmine)
Day Night
ThermonastyIt takes place due to temperature changes
1-Nyctinasty Movement
Example Tulipa clusiana (Tulip flower)
Rise Temperature Low Temperature
1-Nyctinasty Movement
Epinasty Vs Hyponasty
Epinasty Hyponasty
2-Seismonastic movements
The shock movement
Movement in plants in response to touch as well
as other forms of physical contact or mechanical
disturbance such as shaking wounding wind
raindrops and intense heat or burning
In the case of the sensitive plant (Mimosa pudica)
a leaflet leaf or group of leaves rapidly folds
and bends in response to the external stimulus
3-Haptonastic Movement
Haptonastic occurs due to stimulus of touch
plant movement in response to touch or physical contact without regard to thedirection of the stimulus Thigmonastic movements are exemplified by the closing ofthe insect-eating plant Venusrsquos flytrap (Dionaea muscipula) and the bending of theglandular hairs of sundew (Drosera sp) as a result of contact with an insect
Sundew Venusrsquos FlytrapCarnivorous Plant
References
httpbiologyboomcomnastic-movements
httpwwwpreservearticlescom2011121918563different-types-of-nastic-
movements-movement-plantshtml
httpwwwcropsreviewcomplant-movementshtml
MOORE R CLARK WD VODOPICH DS 2003 Botany 2nd ed New York NY
McGraw-Hill p 443-454
httpleavingbionetplant20responseshtm
Thank YouhellipAny Question
Any Question Any Question
5Hydrotropism
Hydrotropism is the growth response of a plant to water
Roots exhibit Positive Hydrotropism
6Thermotropism
Thermotropism is the movement of plant or their parts in response to changes in the
external stimulus of temperature
ExampleRhododendronCold temperature
Hot temperature
NASTIC MOVEMENTS
The non-directional movements of the plant in response to external stimuli are
called nastic movement
The direction of the movement is determined by the structure of the plant organ
itself It is not determined by an external stimulus
Types of nastic movements
1-Nyctinasty or Nyctinastic (sleep movements)
a Photonasty
b Thermonasty
c Epinasty amp Hyponasty
2-Seismonastic movements
3-Haptonastic or Thigmonastic movements
NASTIC MOVEMENTS
1-Nyctinasty Movement This is induced by diurnal variations in light and temperatureThe diurnal movements
PhotonastyThe principle stimulus of Photonasty is the photoperiod
Day Night
ExampleOxalis triangularis (Shamrock flower)
Photonasty
1-Nyctinasty Movement
Example Cestrum nocturnum (Night Jasmine)
Day Night
ThermonastyIt takes place due to temperature changes
1-Nyctinasty Movement
Example Tulipa clusiana (Tulip flower)
Rise Temperature Low Temperature
1-Nyctinasty Movement
Epinasty Vs Hyponasty
Epinasty Hyponasty
2-Seismonastic movements
The shock movement
Movement in plants in response to touch as well
as other forms of physical contact or mechanical
disturbance such as shaking wounding wind
raindrops and intense heat or burning
In the case of the sensitive plant (Mimosa pudica)
a leaflet leaf or group of leaves rapidly folds
and bends in response to the external stimulus
3-Haptonastic Movement
Haptonastic occurs due to stimulus of touch
plant movement in response to touch or physical contact without regard to thedirection of the stimulus Thigmonastic movements are exemplified by the closing ofthe insect-eating plant Venusrsquos flytrap (Dionaea muscipula) and the bending of theglandular hairs of sundew (Drosera sp) as a result of contact with an insect
Sundew Venusrsquos FlytrapCarnivorous Plant
References
httpbiologyboomcomnastic-movements
httpwwwpreservearticlescom2011121918563different-types-of-nastic-
movements-movement-plantshtml
httpwwwcropsreviewcomplant-movementshtml
MOORE R CLARK WD VODOPICH DS 2003 Botany 2nd ed New York NY
McGraw-Hill p 443-454
httpleavingbionetplant20responseshtm
Thank YouhellipAny Question
Any Question Any Question
6Thermotropism
Thermotropism is the movement of plant or their parts in response to changes in the
external stimulus of temperature
ExampleRhododendronCold temperature
Hot temperature
NASTIC MOVEMENTS
The non-directional movements of the plant in response to external stimuli are
called nastic movement
The direction of the movement is determined by the structure of the plant organ
itself It is not determined by an external stimulus
Types of nastic movements
1-Nyctinasty or Nyctinastic (sleep movements)
a Photonasty
b Thermonasty
c Epinasty amp Hyponasty
2-Seismonastic movements
3-Haptonastic or Thigmonastic movements
NASTIC MOVEMENTS
1-Nyctinasty Movement This is induced by diurnal variations in light and temperatureThe diurnal movements
PhotonastyThe principle stimulus of Photonasty is the photoperiod
Day Night
ExampleOxalis triangularis (Shamrock flower)
Photonasty
1-Nyctinasty Movement
Example Cestrum nocturnum (Night Jasmine)
Day Night
ThermonastyIt takes place due to temperature changes
1-Nyctinasty Movement
Example Tulipa clusiana (Tulip flower)
Rise Temperature Low Temperature
1-Nyctinasty Movement
Epinasty Vs Hyponasty
Epinasty Hyponasty
2-Seismonastic movements
The shock movement
Movement in plants in response to touch as well
as other forms of physical contact or mechanical
disturbance such as shaking wounding wind
raindrops and intense heat or burning
In the case of the sensitive plant (Mimosa pudica)
a leaflet leaf or group of leaves rapidly folds
and bends in response to the external stimulus
3-Haptonastic Movement
Haptonastic occurs due to stimulus of touch
plant movement in response to touch or physical contact without regard to thedirection of the stimulus Thigmonastic movements are exemplified by the closing ofthe insect-eating plant Venusrsquos flytrap (Dionaea muscipula) and the bending of theglandular hairs of sundew (Drosera sp) as a result of contact with an insect
Sundew Venusrsquos FlytrapCarnivorous Plant
References
httpbiologyboomcomnastic-movements
httpwwwpreservearticlescom2011121918563different-types-of-nastic-
movements-movement-plantshtml
httpwwwcropsreviewcomplant-movementshtml
MOORE R CLARK WD VODOPICH DS 2003 Botany 2nd ed New York NY
McGraw-Hill p 443-454
httpleavingbionetplant20responseshtm
Thank YouhellipAny Question
Any Question Any Question
NASTIC MOVEMENTS
The non-directional movements of the plant in response to external stimuli are
called nastic movement
The direction of the movement is determined by the structure of the plant organ
itself It is not determined by an external stimulus
Types of nastic movements
1-Nyctinasty or Nyctinastic (sleep movements)
a Photonasty
b Thermonasty
c Epinasty amp Hyponasty
2-Seismonastic movements
3-Haptonastic or Thigmonastic movements
NASTIC MOVEMENTS
1-Nyctinasty Movement This is induced by diurnal variations in light and temperatureThe diurnal movements
PhotonastyThe principle stimulus of Photonasty is the photoperiod
Day Night
ExampleOxalis triangularis (Shamrock flower)
Photonasty
1-Nyctinasty Movement
Example Cestrum nocturnum (Night Jasmine)
Day Night
ThermonastyIt takes place due to temperature changes
1-Nyctinasty Movement
Example Tulipa clusiana (Tulip flower)
Rise Temperature Low Temperature
1-Nyctinasty Movement
Epinasty Vs Hyponasty
Epinasty Hyponasty
2-Seismonastic movements
The shock movement
Movement in plants in response to touch as well
as other forms of physical contact or mechanical
disturbance such as shaking wounding wind
raindrops and intense heat or burning
In the case of the sensitive plant (Mimosa pudica)
a leaflet leaf or group of leaves rapidly folds
and bends in response to the external stimulus
3-Haptonastic Movement
Haptonastic occurs due to stimulus of touch
plant movement in response to touch or physical contact without regard to thedirection of the stimulus Thigmonastic movements are exemplified by the closing ofthe insect-eating plant Venusrsquos flytrap (Dionaea muscipula) and the bending of theglandular hairs of sundew (Drosera sp) as a result of contact with an insect
Sundew Venusrsquos FlytrapCarnivorous Plant
References
httpbiologyboomcomnastic-movements
httpwwwpreservearticlescom2011121918563different-types-of-nastic-
movements-movement-plantshtml
httpwwwcropsreviewcomplant-movementshtml
MOORE R CLARK WD VODOPICH DS 2003 Botany 2nd ed New York NY
McGraw-Hill p 443-454
httpleavingbionetplant20responseshtm
Thank YouhellipAny Question
Any Question Any Question
Types of nastic movements
1-Nyctinasty or Nyctinastic (sleep movements)
a Photonasty
b Thermonasty
c Epinasty amp Hyponasty
2-Seismonastic movements
3-Haptonastic or Thigmonastic movements
NASTIC MOVEMENTS
1-Nyctinasty Movement This is induced by diurnal variations in light and temperatureThe diurnal movements
PhotonastyThe principle stimulus of Photonasty is the photoperiod
Day Night
ExampleOxalis triangularis (Shamrock flower)
Photonasty
1-Nyctinasty Movement
Example Cestrum nocturnum (Night Jasmine)
Day Night
ThermonastyIt takes place due to temperature changes
1-Nyctinasty Movement
Example Tulipa clusiana (Tulip flower)
Rise Temperature Low Temperature
1-Nyctinasty Movement
Epinasty Vs Hyponasty
Epinasty Hyponasty
2-Seismonastic movements
The shock movement
Movement in plants in response to touch as well
as other forms of physical contact or mechanical
disturbance such as shaking wounding wind
raindrops and intense heat or burning
In the case of the sensitive plant (Mimosa pudica)
a leaflet leaf or group of leaves rapidly folds
and bends in response to the external stimulus
3-Haptonastic Movement
Haptonastic occurs due to stimulus of touch
plant movement in response to touch or physical contact without regard to thedirection of the stimulus Thigmonastic movements are exemplified by the closing ofthe insect-eating plant Venusrsquos flytrap (Dionaea muscipula) and the bending of theglandular hairs of sundew (Drosera sp) as a result of contact with an insect
Sundew Venusrsquos FlytrapCarnivorous Plant
References
httpbiologyboomcomnastic-movements
httpwwwpreservearticlescom2011121918563different-types-of-nastic-
movements-movement-plantshtml
httpwwwcropsreviewcomplant-movementshtml
MOORE R CLARK WD VODOPICH DS 2003 Botany 2nd ed New York NY
McGraw-Hill p 443-454
httpleavingbionetplant20responseshtm
Thank YouhellipAny Question
Any Question Any Question
1-Nyctinasty Movement This is induced by diurnal variations in light and temperatureThe diurnal movements
PhotonastyThe principle stimulus of Photonasty is the photoperiod
Day Night
ExampleOxalis triangularis (Shamrock flower)
Photonasty
1-Nyctinasty Movement
Example Cestrum nocturnum (Night Jasmine)
Day Night
ThermonastyIt takes place due to temperature changes
1-Nyctinasty Movement
Example Tulipa clusiana (Tulip flower)
Rise Temperature Low Temperature
1-Nyctinasty Movement
Epinasty Vs Hyponasty
Epinasty Hyponasty
2-Seismonastic movements
The shock movement
Movement in plants in response to touch as well
as other forms of physical contact or mechanical
disturbance such as shaking wounding wind
raindrops and intense heat or burning
In the case of the sensitive plant (Mimosa pudica)
a leaflet leaf or group of leaves rapidly folds
and bends in response to the external stimulus
3-Haptonastic Movement
Haptonastic occurs due to stimulus of touch
plant movement in response to touch or physical contact without regard to thedirection of the stimulus Thigmonastic movements are exemplified by the closing ofthe insect-eating plant Venusrsquos flytrap (Dionaea muscipula) and the bending of theglandular hairs of sundew (Drosera sp) as a result of contact with an insect
Sundew Venusrsquos FlytrapCarnivorous Plant
References
httpbiologyboomcomnastic-movements
httpwwwpreservearticlescom2011121918563different-types-of-nastic-
movements-movement-plantshtml
httpwwwcropsreviewcomplant-movementshtml
MOORE R CLARK WD VODOPICH DS 2003 Botany 2nd ed New York NY
McGraw-Hill p 443-454
httpleavingbionetplant20responseshtm
Thank YouhellipAny Question
Any Question Any Question
Photonasty
1-Nyctinasty Movement
Example Cestrum nocturnum (Night Jasmine)
Day Night
ThermonastyIt takes place due to temperature changes
1-Nyctinasty Movement
Example Tulipa clusiana (Tulip flower)
Rise Temperature Low Temperature
1-Nyctinasty Movement
Epinasty Vs Hyponasty
Epinasty Hyponasty
2-Seismonastic movements
The shock movement
Movement in plants in response to touch as well
as other forms of physical contact or mechanical
disturbance such as shaking wounding wind
raindrops and intense heat or burning
In the case of the sensitive plant (Mimosa pudica)
a leaflet leaf or group of leaves rapidly folds
and bends in response to the external stimulus
3-Haptonastic Movement
Haptonastic occurs due to stimulus of touch
plant movement in response to touch or physical contact without regard to thedirection of the stimulus Thigmonastic movements are exemplified by the closing ofthe insect-eating plant Venusrsquos flytrap (Dionaea muscipula) and the bending of theglandular hairs of sundew (Drosera sp) as a result of contact with an insect
Sundew Venusrsquos FlytrapCarnivorous Plant
References
httpbiologyboomcomnastic-movements
httpwwwpreservearticlescom2011121918563different-types-of-nastic-
movements-movement-plantshtml
httpwwwcropsreviewcomplant-movementshtml
MOORE R CLARK WD VODOPICH DS 2003 Botany 2nd ed New York NY
McGraw-Hill p 443-454
httpleavingbionetplant20responseshtm
Thank YouhellipAny Question
Any Question Any Question
ThermonastyIt takes place due to temperature changes
1-Nyctinasty Movement
Example Tulipa clusiana (Tulip flower)
Rise Temperature Low Temperature
1-Nyctinasty Movement
Epinasty Vs Hyponasty
Epinasty Hyponasty
2-Seismonastic movements
The shock movement
Movement in plants in response to touch as well
as other forms of physical contact or mechanical
disturbance such as shaking wounding wind
raindrops and intense heat or burning
In the case of the sensitive plant (Mimosa pudica)
a leaflet leaf or group of leaves rapidly folds
and bends in response to the external stimulus
3-Haptonastic Movement
Haptonastic occurs due to stimulus of touch
plant movement in response to touch or physical contact without regard to thedirection of the stimulus Thigmonastic movements are exemplified by the closing ofthe insect-eating plant Venusrsquos flytrap (Dionaea muscipula) and the bending of theglandular hairs of sundew (Drosera sp) as a result of contact with an insect
Sundew Venusrsquos FlytrapCarnivorous Plant
References
httpbiologyboomcomnastic-movements
httpwwwpreservearticlescom2011121918563different-types-of-nastic-
movements-movement-plantshtml
httpwwwcropsreviewcomplant-movementshtml
MOORE R CLARK WD VODOPICH DS 2003 Botany 2nd ed New York NY
McGraw-Hill p 443-454
httpleavingbionetplant20responseshtm
Thank YouhellipAny Question
Any Question Any Question
1-Nyctinasty Movement
Epinasty Vs Hyponasty
Epinasty Hyponasty
2-Seismonastic movements
The shock movement
Movement in plants in response to touch as well
as other forms of physical contact or mechanical
disturbance such as shaking wounding wind
raindrops and intense heat or burning
In the case of the sensitive plant (Mimosa pudica)
a leaflet leaf or group of leaves rapidly folds
and bends in response to the external stimulus
3-Haptonastic Movement
Haptonastic occurs due to stimulus of touch
plant movement in response to touch or physical contact without regard to thedirection of the stimulus Thigmonastic movements are exemplified by the closing ofthe insect-eating plant Venusrsquos flytrap (Dionaea muscipula) and the bending of theglandular hairs of sundew (Drosera sp) as a result of contact with an insect
Sundew Venusrsquos FlytrapCarnivorous Plant
References
httpbiologyboomcomnastic-movements
httpwwwpreservearticlescom2011121918563different-types-of-nastic-
movements-movement-plantshtml
httpwwwcropsreviewcomplant-movementshtml
MOORE R CLARK WD VODOPICH DS 2003 Botany 2nd ed New York NY
McGraw-Hill p 443-454
httpleavingbionetplant20responseshtm
Thank YouhellipAny Question
Any Question Any Question
2-Seismonastic movements
The shock movement
Movement in plants in response to touch as well
as other forms of physical contact or mechanical
disturbance such as shaking wounding wind
raindrops and intense heat or burning
In the case of the sensitive plant (Mimosa pudica)
a leaflet leaf or group of leaves rapidly folds
and bends in response to the external stimulus
3-Haptonastic Movement
Haptonastic occurs due to stimulus of touch
plant movement in response to touch or physical contact without regard to thedirection of the stimulus Thigmonastic movements are exemplified by the closing ofthe insect-eating plant Venusrsquos flytrap (Dionaea muscipula) and the bending of theglandular hairs of sundew (Drosera sp) as a result of contact with an insect
Sundew Venusrsquos FlytrapCarnivorous Plant
References
httpbiologyboomcomnastic-movements
httpwwwpreservearticlescom2011121918563different-types-of-nastic-
movements-movement-plantshtml
httpwwwcropsreviewcomplant-movementshtml
MOORE R CLARK WD VODOPICH DS 2003 Botany 2nd ed New York NY
McGraw-Hill p 443-454
httpleavingbionetplant20responseshtm
Thank YouhellipAny Question
Any Question Any Question
3-Haptonastic Movement
Haptonastic occurs due to stimulus of touch
plant movement in response to touch or physical contact without regard to thedirection of the stimulus Thigmonastic movements are exemplified by the closing ofthe insect-eating plant Venusrsquos flytrap (Dionaea muscipula) and the bending of theglandular hairs of sundew (Drosera sp) as a result of contact with an insect
Sundew Venusrsquos FlytrapCarnivorous Plant
References
httpbiologyboomcomnastic-movements
httpwwwpreservearticlescom2011121918563different-types-of-nastic-
movements-movement-plantshtml
httpwwwcropsreviewcomplant-movementshtml
MOORE R CLARK WD VODOPICH DS 2003 Botany 2nd ed New York NY
McGraw-Hill p 443-454
httpleavingbionetplant20responseshtm
Thank YouhellipAny Question
Any Question Any Question
References
httpbiologyboomcomnastic-movements
httpwwwpreservearticlescom2011121918563different-types-of-nastic-
movements-movement-plantshtml
httpwwwcropsreviewcomplant-movementshtml
MOORE R CLARK WD VODOPICH DS 2003 Botany 2nd ed New York NY
McGraw-Hill p 443-454
httpleavingbionetplant20responseshtm
Thank YouhellipAny Question
Any Question Any Question
Thank YouhellipAny Question
Any Question Any Question