1Department of Biosciences, Himachal Pradesh University, Shimla-171 005, (H.R)
2Govt. College, Dharamshala, District Kangra-176115, (H.R)
3Algology section, National Botanical Research Institute, Lucknow-226 001, U.R
*R.G.M. Govt. College, Joginder Nagar, District Mandi-175015, (H.R), rbotany@gmail.com
Online published on 7 April, 2016.
One of the most fascinating of all plants intimate symbiotic associations is Azolla-Anabaena association. It involves a tiny aquatic water fern (Azolla) belonging to monotypic family Azollaceae and a microscopic filamentous blue-green alga or cyanobacterium Anabaena belonging to family Nostocaceae of Cyanophyceae. In this short communication morpho-taxonomic characters and the practical uses of Azolla are described and the species Azolla filiculoides is reported for the first time from Himachal Pradesh.
cyanobacterium, Azolla, Anabaena, symbiosis, nitrogen fixation
