Nostoc punctiforme

Nostoc punctiforme
Scientific classification
Domain:	Bacteria
Phylum:	Cyanobacteria
Class:	Cyanophyceae
Order:	Nostocales
Family:	Nostocaceae
Genus:	Nostoc
Species:	N. punctiforme
Binomial name
	Nostoc punctiforme; (Kütz.) Har.

Nostoc punctiforme is a species of filamentous cyanobacterium. Under non-limiting nutritional environmental conditions, its filaments are composed of photosynthetic vegetative cells; upon nutrient limitation, some of these cells undergo differentiation into heterocysts, akinetes or hormogonia.[1]

N. punctiforme is one of the Nostoc strains able to maintain diazotrophic symbiosis with higher plants such as the bryophytes Anthocerus punctatus and Blasia pusilla, water ferns from the genus Azolla, the cycads Macrozamia spp., and the angiosperm Gunnera.[2]

References

Meeks, JC; EL Campbell; ML Summers; FC Wong (2002). "Cellular differentiation in the cyanobacterium Nostoc punctiforme". Arch Microbiol. 178 (6): 395–403. doi:10.1007/s00203-002-0476-5. PMID 12420158.
Meeks, JC (1998). "Symbiosis between Nitrogen-Fixing Cyanobacteria and Plants. They grow with the help of water". BioScience. 48 (4): 266–276. doi:10.2307/1313353. JSTOR 1313353.

External links

Genome sequencing project page of Nostoc punctiforme PCC 73102

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[Meeks-1] Meeks, JC; EL Campbell; ML Summers; FC Wong (2002). "Cellular differentiation in the cyanobacterium Nostoc punctiforme". Arch Microbiol. 178 (6): 395–403. doi:10.1007/s00203-002-0476-5. PMID 12420158.

[Meeks2-2] Meeks, JC (1998). "Symbiosis between Nitrogen-Fixing Cyanobacteria and Plants. They grow with the help of water". BioScience. 48 (4): 266–276. doi:10.2307/1313353. JSTOR 1313353.