Extreme ecosystems such as hot springs are of great interest as a source of novel extremophilic species, enzymes, metabolic functions for survival and biotechnological products. India harbors hundreds of hot springs, the majority of which are not yet explored and require comprehensive studies to unravel their unknown and untapped phylogenetic and functional diversity. The aim of this study was ...

The Isti Su hot spring is located in southeast of Salmas, in Western Azerbaijan, Iran. The area is a small part of Sanandaj-Sirjan geological zone which hosts many hot springs. The magma chamber of Salmas region is the main heat source of the hot springs in Isti Su area. Abundant rainfall and relatively long duration of snowfall as well as several deep faults in the area create the best conditi...

Undisturbed hot springs inside Yellowstone National Park remain a dynamic biome for novel cellulolytic thermophiles. We report here the draft genome sequence of one of these isolates, Bacillus altitudinis YNP4-TSU.

Microbial mats situated at the Manikaran hot springs (>95°C) are characterized by their high arsenic content (140 ppb), qualifying as a stressed niche. Here, we report the annotated draft genome (3.85 Mb) of Cellulosimicrobium sp. strain MM, isolated from these microbial mats, consisting of 3,718 coding sequences, with an average % G+C of 74.4%.

19.4 Examples of Cyanobacterial Habitats with High Exposure ....................................................... 485 19.4.1 Hot Springs ..................................................................... 485 19.4.2 Intertidal Marine and Hypersaline Habitats .................... 486 19.4.3 Benthic Freshwater Habitats ........................................... 487 19.4.4 Marine and Freshwat...

Viruses populate virtually every ecosystem on the planet, including the extreme acidic, thermal, and saline environments where archaeal organisms can dominate. For example, recent studies have identified crenarchaeal viruses in the hot springs of Yellowstone National Park and other high temperature environments worldwide. These viruses are often morphologically and genetically unique, with geno...

Using RNA-based techniques and hot spring samples collected from Yunnan Province, China, we show that the amoA gene of aerobic ammonia-oxidizing archaea can be transcribed at temperatures higher than 74 degrees C and up to 94 degrees C, suggesting that archaeal nitrification can potentially occur at near boiling temperatures.

The Devonian to Carboniferous sinters of the Drummond Basin, Australia, are among the oldest well established examples of fossil subaerial hot springs. Numerous subaerial and subaqueous spring deposits are known from the geological record as a result of the occurrence of economic mineral deposits in many of them. Some are reported to contain fossils, but very few have been studied by paleobio...