Root symbiosis Flashcards
From what is nourished the mycorrhizae
photosynthate and minerals from plants
Which plant family are not associated with micorrhizae
Brassicacae and Cyperaceae
What are the the three type of mycorrhizae
Ectomycorrhizae
Endomycorrhizae
Ericoid mycorrhizae
What form the ectomycorrhizae
Hartig net. It thick epidermal cell and inhibit root hair
Not penetrate the cells
What are the function of ectomyc
Absorption of water and minerals
protection
With which type of species the ectomyc are associated
Woody plant
What does the endomyc
Penetrate the host cortex and form arbuscule
not enter protoplast
will form vesicles for storage
What are the function of endomyc
Supply in carbohydrates
Absorption
increase tolerance of drought, high temperature, toxic, acid, salt
What form the ericoid myc
A loose web over entire root surface. not form arbuscule
What does the ericoid myc
release nitrogen
What is the Harbor Bosh process
N fixation
N2 and H2 = NH3
What are the particularities of rhizobia
Anaerobic bacteria that fix nitrogen
With which families are associated the rhizobia
fabaceae
the rhizobia are contained in which structures
Nodules on root hair
Why rhizobia are attract to the root hair
Chemical released
