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How bacteria use ACC deaminase and lower levels of ethylene
Bacteria binds to seed coats or plant roots.
Isolates ACC and cleaves
When ACC in the roots can't be converted to ethylene because of flooding causing anoxic conditions...
ACC is transported up and kills the stem/leaves
Solution to fear of antibiotics spreading to other bacteria
Transfer deficient derivative of plasmids
In order to use PGPB as a biocontrol agent
Must adhere to root surfaces to prevent incursion by pathogens
Examples of how to increase the amount of Nitrogen that can be fixed
Inhibiting synthesis of rhizobial glycogen(modulating the level of O2 within the bacterial cell).
Preventing rhizobial synthesis of polymer poly-B-hydroxybutryrate, which normall acts as a C storage compound)
First small peak which increases plant enhances survival, second peak causes senescence or death
Examples of biocontrols
Enzymes that lyse fungal cell walls.
Engineer strains to be better root colonizers, more efficient at lowering ethylene levels, more active producers of antibiotics/enzymes
Direct stimulation by PGPB
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