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Fungal - Plant Symbiosis
A REPORT FROM THE AMERICAN ACADEMY OF MICROBIOLOGY
Pius Florus is using a mix of microbes and organic pesticides to help
restore a depleted field in Spain. Science 349:680 2015
The major root symbioses established by land plants with soil microorganisms are arbuscularmycorrhizal, ectomycorrhizal, and nitrogen-fixing associations.
Francis M. Martin et al. Science 2017;356:eaad4501
Published by AAAS
Rhizobiome Group Genes #s/gm soil
Plants 37,500 -
Nematodes 18,000 10 - 100
Protozoa 15,500 100,000 - 1 million
Algae 13,000 1,000 - 1 million
Fungi 1,400 1,000 - 100,000
Bacteria 6,500 100 million -1 billion
Archaea 1300 10 million -100 million
Viruses 45 10 million - 1 billion
Science 349:680 2015
Fig. 2 modes of root entry by symbiotic soil microbes.
Francis M. Martin et al. Science 2017;356:eaad4501
Published by AAAS
How Microbes Help Plants
• Heat stress • Cold stress • Drought • Flooding • Osmotic stress • Pathogens • Insects • Heavy metal toxicity • Nutrient limitation
DROUGHT
How microbes can help feed the world, National Academy of Microbiologists
Dr. David Johnson New Mexico State University, Institute of Sustainable
Agricultural Research
New Mexico State UniversityDavid C. Johnson- NMSU Institute for Sustainable Agricultural Research (ISAR)[email protected]
0.31 1.01 1.72 2.67 3.93 4.92 Beginning Soil C (%)
r2= 0.99
Dr. David Johnson New Mexico State University, Institute of Sustainable
Agricultural Research
New Mexico State UniversityDavid C. Johnson- NMSU Institute for Sustainable Agricultural Research (ISAR)[email protected]
Fungal:Bacterial
Dr. David Johnson New Mexico State University, Institute of Sustainable
Agricultural Research
New Mexico State UniversityDavid C. Johnson- NMSU Institute for Sustainable Agricultural Research (ISAR)[email protected]
