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  • (A) Switchgrass root hair growth promotion in the presence of the dark septate endophyte (DSE) fungus, Acidomelania panicicola. Warm season C4 grasses such as switchgrass rely on their symbiome to persist in stressful environments such as the Pine Barrens of New Jersey, USA. 

(B) Symbiosis between the water fern Azolla and the cyanobacterium Anabaena that involves vertical inheritance of the cyanobacterium via the mega-spore apparatus
of the water fern. This is a transverse section of the megaspore apparatus that shows the megaspore (m), the floats (f), and the cyanobacteria (c; red region at the top of the megaspore apparatus). 

(C) Examples of the obligate lichen symbiosis. Top two rows show examples of lichen species present in the southern Appalachian Mountains. The lower row shows light micrographs of different types of algal associations (indicated with
arrows, from L to R: Trebouxia, Trentepohlia, Nostoc) in lichen thalli.
    (A) Images prepared by E. Walsh, Rutgers University. (B) Image prepared by H. Schneider. (C) Images by E.A. Tripp and J.C. Lendemer.
    (A) Switchgrass root hair growth promotion in the presence of the dark septate endophyte (DSE) fungus, Acidomelania panicicola. Warm season C4 grasses such as switchgrass rely on their symbiome to persist in stressful environments such as the Pine Barrens of New Jersey, USA. (B) Symbiosis between the water fern Azolla and the cyanobacterium Anabaena that involves vertical inheritance of the cyanobacterium via the mega-spore apparatus of the water fern. This is a transverse section of the megaspore apparatus that shows the megaspore (m), the floats (f), and the cyanobacteria (c; red region at the top of the megaspore apparatus). (C) Examples of the obligate lichen symbiosis. Top two rows show examples of lichen species present in the southern Appalachian Mountains. The lower row shows light micrographs of different types of algal associations (indicated with arrows, from L to R: Trebouxia, Trentepohlia, Nostoc) in lichen thalli.
  • Symbiosis between the water fern Azolla and the cyanobacterium Anabaena that is vertically inherited via the fern mega-spore apparatus. This is a transverse section showing the megaspore (M), floats (F), and cyanobacteria
(C; red region).
    Image prepared by H. Schneider.
    Symbiosis between the water fern Azolla and the cyanobacterium Anabaena that is vertically inherited via the fern mega-spore apparatus. This is a transverse section showing the megaspore (M), floats (F), and cyanobacteria (C; red region).
  • The coral Stylophora has a symbiotic relationship with photosynthetic dinoflagellate algae. The coral body is also full of myriad microbes.
    Australian Institute of Marine Science
    The coral Stylophora has a symbiotic relationship with photosynthetic dinoflagellate algae. The coral body is also full of myriad microbes.
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