• Dr. P. SATHIYA BAMA
• Dr. A.DAVID RAVINDRAN

Nitrogen fixation can be considered as one of the most interesting microbial activity as it involves in the recycling of nitrogen on earth and maintains nitrogen homeostasis in the biosphere. Nitrogen input to ecosystem is usually mediated mainly by biological nitrogen fixation by termite gut microbial flora. Most of the subterranean termite species feed on the plant residues with high carbon and nitrogen content. In addition to the carbon mineralization, they have an ecological impact in terms of nitrogen. T. trinervoides and O.obesus species cum mound materials recorded higher N2 fixation rate on the intial day and decline in N2 fixation activity was observed in successive days. More over live termite posses higher N2 fixation rate than mound materials on the first day of sampling and a decline in N fixation activity was observed in successive days. The ability of termites to contribute the environmental nitrogen have identified termites as ecological keystone species.

Nitrogen fixation, termites, T. trinervoides , O.obeus, keystone species

"NITROGEN FIXING ABILITY OF SELECTED SUBTERRANEAN TERMITES AND IN THEIR MOUND MATERIALS .", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.7, Issue 4, page no.255-258, April-2020, Available :http://www.jetir.org/papers/JETIR2004035.pdf

"NITROGEN FIXING ABILITY OF SELECTED SUBTERRANEAN TERMITES AND IN THEIR MOUND MATERIALS .", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.7, Issue 4, page no. pp255-258, April-2020, Available at : http://www.jetir.org/papers/JETIR2004035.pdf