Abstract
Microbial communities at cryosphere are the cosmopolitan buffers of important biogeochemical processes stationed at extreme archaic and frigid conditions. In the present study microbial diversity analysis from accumulation zone of two glaciers of North Sikkim, India has been carried by two culture independent methods. The phospholipid fatty acids analysis of Changme Khang and Changme Khangpu glacier showed that both of these were dominated by Gram-positive bacteria followed by Gram-negative bacteria. Among the two glaciers, Changme Khang (54.04%) had higher percentage of Gram-positive bacteria than Changme Khangpu (24.84%), while Gram-negative bacteria were higher in Changme Khangpu (22.65%) than Changme Khang (4.41%). The metagenomic analysis shows the dominance of Proteobacteria followed by Firmicutes and Actinobacteria. Betaproteobacteria were the dominant class among Proteobacteria. Similar kind of bacterial diversity was also observed from other polar and non-polar glaciers.
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