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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


Affiliations
1 Birbal Sahni Institute of Palaeosciences, 53 University Road, Lucknow 226 007, India
 

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.
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  • 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

Abstract Views: 366  |  PDF Views: 123

Authors

A. H. Ansari
Birbal Sahni Institute of Palaeosciences, 53 University Road, Lucknow 226 007, India
Mukund Sharma
Birbal Sahni Institute of Palaeosciences, 53 University Road, Lucknow 226 007, India
S. Ahmad
Birbal Sahni Institute of Palaeosciences, 53 University Road, Lucknow 226 007, India
Veeru Kant Singh
Birbal Sahni Institute of Palaeosciences, 53 University Road, Lucknow 226 007, India
S. K. Pandey
Birbal Sahni Institute of Palaeosciences, 53 University Road, Lucknow 226 007, India
Yogesh Kumar
Birbal Sahni Institute of Palaeosciences, 53 University Road, Lucknow 226 007, India

Abstract


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.

References





DOI: https://doi.org/10.18520/cs%2Fv118%2Fi4%2F644-648