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Ahmad, S.
- Glucose Uptake Rate of Microorganisms Living in Hot Springs above 70°c Temperature:A Study of Panamik and Puga Hot Springs in the Ladakh Region, Jammu and Kashmir, India
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Authors
Affiliations
1 Birbal Sahni Institute of Palaeosciences, 53 University Road, Lucknow 226 007, IN
1 Birbal Sahni Institute of Palaeosciences, 53 University Road, Lucknow 226 007, IN
Source
Current Science, Vol 118, No 4 (2020), Pagination: 644-648Abstract
This study measures in situ microbial glucose uptake rate in two different hot springs in Ladakh, J&K, India with distinct temperatures >74°C and pH > 7.4. For this purpose, the slurry samples from each hot spring were incubated up to 4 h with 13C-labelled glucose in gas-tight incubation bottles at the respective hot-spring sites. The natural δ13C particulate varies from –9.1‰ in Panamik hot spring to –11.7‰ in Puga hot spring. After incubation with 13C-labelled glucose, the δ13C particulate reached a maximum 2472‰ in Panamik and 4365‰ in Puga hot-spring samples. The glucose uptake rate calculated from the final δ13C particulate in the incubation bottles varied from 28 to 147 ng C g–1 h–1 in the Panamik and from 168 to 1196 ng C g–1 h–1 in the Puga samples. This reveals that even at >74°C temperature, thermophiles are capable of running their metabolic machinery, perhaps faster than the heterotrophic microbes/cells under normal temperature condition.Keywords
Exogenous Carbon, Hot Springs, Thermophiles Glucose Uptake.Full Text
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