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PROGRAMIRANA CELIČNA SMRT. PCS. maligne celice. concept of PCD. PCD-THE PLANT WAY. concept of PCD. PCD-THE PLANT WAY. history of PCD research. PCD-THE PLANT WAY. Puccinia graminis tritici in a wheat leaf. history of PCD research. PCD-THE PLANT WAY. history of PCD research. - PowerPoint PPT Presentation
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PROGRAMIRANACELIČNA SMRT
PCS
maligne celice
PC
D-T
HE
PL
AN
T W
AY
PC
D-T
HE
PL
AN
T W
AY
co
nc
ep
t o
f P
CD
co
nc
ep
t o
f P
CD
PC
D-T
HE
PL
AN
T W
AY
PC
D-T
HE
PL
AN
T W
AY
co
nc
ep
t o
f P
CD
co
nc
ep
t o
f P
CD
PC
D-T
HE
PL
AN
T W
AY
PC
D-T
HE
PL
AN
T W
AY
his
tory
of
PC
D r
ese
arch
his
tory
of
PC
D r
ese
arch
Puccinia graminis tritici in a wheat leaf
PC
D-T
HE
PL
AN
T W
AY
PC
D-T
HE
PL
AN
T W
AY
his
tory
of
PC
D r
ese
arch
his
tory
of
PC
D r
ese
arch
PC
D-T
HE
PL
AN
T W
AY
PC
D-T
HE
PL
AN
T W
AY
his
tory
of
PC
D r
ese
arch
his
tory
of
PC
D r
ese
arch
PC
D-T
HE
PL
AN
T W
AY
PC
D-T
HE
PL
AN
T W
AY
his
tory
of
PC
D r
ese
arch
his
tory
of
PC
D r
ese
arch
PC
D-T
HE
PL
AN
T W
AY
PC
D-T
HE
PL
AN
T W
AY
ap
op
tos
is a
nd
nec
ros
isa
po
pto
sis
an
d n
ecro
sis
APOPTOSIS NECROSIS
PC
D-T
HE
PL
AN
T W
AY
PC
D-T
HE
PL
AN
T W
AY
ap
op
tos
is a
nd
nec
ros
isa
po
pto
sis
an
d n
ecro
sis APOPTOSIS
PC
D-T
HE
PL
AN
T W
AY
PC
D-T
HE
PL
AN
T W
AY
NECROSISa
po
pto
sis
an
d n
ecro
sis
ap
op
tos
is a
nd
nec
ros
is
PC
D-T
HE
PL
AN
T W
AY
PC
D-T
HE
PL
AN
T W
AY
ap
op
tos
isa
po
pto
sis
PC
D-T
HE
PL
AN
T W
AY
PC
D-T
HE
PL
AN
T W
AY
dif
fere
nt
pro
gra
ms
of
cell
de
ath
dif
fere
nt
pro
gra
ms
of
cell
de
ath
hypersensitive response
megaspore formationendosperm, aleurone
trichome development
tracheary element formation
root capaerenyhyma formation
leaf senescence
suspendor degeneration
PC
D-T
HE
PL
AN
T W
AY
PC
D-T
HE
PL
AN
T W
AY
co
rps
e m
an
age
me
nt
co
rps
e m
an
age
me
nt
CH2=CH2
different elicitors
PC
D-T
HE
PL
AN
T W
AY
PC
D-T
HE
PL
AN
T W
AY
co
rps
e m
an
age
me
nt
co
rps
e m
an
age
me
nt
PC
D-T
HE
PL
AN
T W
AY
PC
D-T
HE
PL
AN
T W
AY
co
rps
e m
an
age
me
nt
co
rps
e m
an
age
me
nt
PC
D-T
HE
PL
AN
T W
AY
PC
D-T
HE
PL
AN
T W
AY
co
rps
e m
an
age
me
nt
co
rps
e m
an
age
me
nt
Ca2+Ca2+
Ca2+
Obara et al., 2001
KSILEM - ontogentski razvoj ksilemskih elementov
primarna stena
sekundarnastena nukleaze,
proteaze
http://www.bio.unc.edu/faculty/jones/lab/pcd/movie2b.mov
KSILEM - ontogentski razvoj ksilemskih elementov
Plant Physiol, February 2001, Vol. 125, pp. 615-626
KSILEM - ontogentski razvoj ksilemskih elementov
Plant Physiol, February 2001, Vol. 125, pp. 615-626
PC
D-T
HE
PL
AN
T W
AY
PC
D-T
HE
PL
AN
T W
AY
co
rps
e m
an
age
me
nt
co
rps
e m
an
age
me
nt
air spaces undergone lysigeny
xylogenesis - formation of TEs
OBRAMBA PREK PREBČUTLJIVOSTNEGA ODGOVORA
Razvoj preobčutljivostne reakcije v celici odporne sorte krompirja okužene s Phytophtoro infestans
List tobaka inokuliran s šestimi sevi bakterij mehke gnilobe.
Trije sevi (1,3,6) sprožijo preobčutljivostni odgovor.
OBRAMBA PREK PREBČUTLJIVOSTNEGA ODGOVORA
Tobakov kultivar z dominantnim odpornostnim genom je omejil širjenje TMV na majhna območja okoli mesta vstopa - tam se kasneje pojavijo nekrotične poškodbe.
OBRAMBA PREK PREBČUTLJIVOSTNEGA ODGOVORA
List fižola inokuliran z nekompatibilnim sevom bakterije Pseudomonas syringae pv. phaseolicola.
Kolaps mezofilne celice zaradi preobčutljivostne reakcije (HR) na bakterijske celice.
OBRAMBA PREK PREBČUTLJIVOSTNEGA ODGOVORA
OBRAMBA PREK PREBČUTLJIVOSTNEGA ODGOVORA
geni zapatogenostavirulenčni
geni
ni sprožitvespecifičneobrambe
nekompatibilnaspecifičnostreceptorja
odpornostnigen
dejavnikipatogenosti
osnovanje in vzdrževanjeosnovne kompatibilnosti
supresorji rastlinske obrambe
encimitoksinirastni regulatorjipolisharidi
signali gostitelja:hitinmaščobne kislinegalakturonanifenoli
nespecifičnarastlinska obramba
interferenca s presnovotranslokacija hranil
rasno specifični
elicitor
• izbruh oksidativnih reakcij
• povečano gibanje ionov prek membrane (K+, H+)
• razpad membran in izguba organelov
• povezovanje fenolov s komponentami celične stene in utrditev sten
• nastajanje protimikrobnih snovi (fitoaleksini, PRP)
odpornostni (R) geni
avirulenčni (avr) geni
