dc.contributor.author | Roy, C. | |
dc.contributor.author | Rameez, M.J. | |
dc.contributor.author | Haldar, P.K. | |
dc.contributor.author | Peketi, A. | |
dc.contributor.author | Mondal, N. | |
dc.contributor.author | Bakshi, U. | |
dc.contributor.author | Mapder, T. | |
dc.contributor.author | Pyne, P. | |
dc.contributor.author | Fernandes, S. | |
dc.contributor.author | Bhattacharya, S. | |
dc.contributor.author | Roy, R. | |
dc.contributor.author | Mandal, Subhrangshu | |
dc.contributor.author | ONeill, W.K. | |
dc.contributor.author | Mazumdar, A. | |
dc.contributor.author | Mukhopadhyay, S.K. | |
dc.contributor.author | Mukherjee, Ambarish | |
dc.contributor.author | Chakraborty, Ranadhir | |
dc.contributor.author | Hallsworth, J.E. | |
dc.contributor.author | Ghosh, Wriddhiman | |
dc.date.accessioned | 2020-03-31 | |
dc.date.accessioned | 2021-02-09T10:13:21Z | |
dc.date.available | 2020-03-04 | |
dc.date.available | 2021-02-09T10:13:21Z | |
dc.date.issued | 2020 | |
dc.identifier.citation | Scientific Reports, vol.10(1); 2020; Article no: 5917 | |
dc.identifier.issn | 2045-2322 | |
dc.identifier.other | https://www.nature.com/articles/s41598-020-62797-z | |
dc.identifier.uri | https://doi.org/10.1038/s41598-020-62797-z | |
dc.identifier.uri | http://drs.nio.org/drs/handle/2264/8533 | |
dc.description | IF2018 - 4.011 | |
dc.description.abstract | Little is known about life in the boron-rich hot-springs of Trans-Himalayas. Here, we explore the geomicrobiology of a 4438-m-high spring which emanates ~70 °C-water from a boratic microbialite called Shivlinga. Due to low atmospheric pressure, the vent-water is close to boiling-point so can entropically destabilize biomacromolecular systems. Starting from the vent, Shivlinga's geomicrobiology was revealed along the thermal gradients of an outflow-channel and a progressively-drying mineral matrix that has no running-water; ecosystem constraints were then considered in relation to those of entropically-comparable environments. The spring-water chemistry and sinter mineralogy were dominated by borates, sodium, thiosulfate, sulfate, sulfite, sulfide, bicarbonate, and other macromolecule-stabilizing (kosmotropic) substances. Microbial diversity was high along both of the hydrothermal gradients. Bacteria, Eukarya and Archaea constituted >98%, ~1% and <1% of Shivlinga's microbiome, respectively. Temperature constrained the biodiversity at ~50 °C and ~60 °C, but not below 46 °C. Along each thermal gradient, in the vent-to-apron trajectory,communities were dominated by Aquificae/Deinococcus-Thermus, then Chlorobi/Chloroflexi/Cyanobacteria, and finally Bacteroidetes/Proteobacteria/Firmicutes. Interestingly, sites of >45 °C were inhabited by phylogenetic relatives of taxa for which laboratory growth is not known at >45 °C. Shivlinga's geomicrobiology highlights the possibility that the system's kosmotrope-dominated chemistry mitigates against the biomacromolecule-disordering effects of its thermal-water. | |
dc.language | en | |
dc.publisher | Nature Research | |
dc.relation.ispartof | Sci Rep | |
dc.relation.isreferencedby | SCI | |
dc.rights | Only the author version of the copright reserved papers uploaded. Contact drs@nio.org for any complaints regarding copyright violations | |
dc.title | Microbiome and ecology of a hot spring-microbialite system on the Trans-Himalayan Plateau | |
dc.type | Journal Article | |
dc.affiliation.author | Bose Institute, P-1/12 CIT Scheme VIIM, Kolkata 700054, India | |