Fungal Population Dynamics and Diversity of AMF species in Sewage Irrigated Agricultural fields of Ganga-Yamuna River Basin

Author(s): Dheeraj Pandey, Ifra Zoomi, and Harbans kaur kehri

Abstract: In the present scenario most of the drainage and industrial wastewater pollute the river water. The agricultural field around river basin is irrigated with these metals polluted water. Polluted water contains organic pollutants and inorganic heavy metals like Zn, As, Cu, Pb, Cd, Hg, Ni, and Cr. Higher concentrations of these metals may reduce the microorganisms and plant diversity of this catchment area. Therefore, the present study has been undertaken to understand the effect of heavy metals and seasonal variation on microorganisms. A total of 10 fungal genera were isolated from both the studied site in which Aspergillus niger, Aspergillus sp. 2 and Sterile mycelia are dominating species in all season. Arbuscular mycorrhizal fungi were found to be associated with all the host plants however, percentage of association varies from site to site, 40.3 to 83.3% at site-I and 36.7 to 96.7% at site-II. AM spore population ranges 38.7 to 75.3 at site-I and 22.3 to 65.7 at site-II. Genus Glomus and Acaulospora were recorded as the dominant AM fungi in this survey. Maximum density showed by Acaulospora foveata, Acaulospora bireticulata and Glomus etunicatum respectively from site-I and site-II.

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