Azolla Plant
by Stefan Diller
Title
Azolla Plant
Artist
Stefan Diller
Medium
Photograph - Photograph
Description
Azolla plant. Coloured scanning electron micrograph (SEM) of part of an Azolla (water fern) plant. This plant has a symbiotic relationship with Anabaena cyanobacteria, where the cyanobacteria doubles the rate of photosynthesis and fulfils the nitrogen requirements of the plant. Both these factors give the water fern a competitive advantage over other water plants, a factor spotted by the Chinese 2000 years ago. The Anabaena-Azolla association is used as a green manure for rice crops. Anabaena is a filamentous organism, which, apart from vegetative cells, forms heterocysts and akinetes.
Uploaded
June 30th, 2016
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