By Helga Stan-Lotter (auth.), Prof. Dr. Helga Stan-Lotter, Dr. Sergiu Fendrihan (eds.)
Once thought of unparalleled rarities, extremophiles became beautiful items for easy and utilized study starting from nanotechnology to biodiversity to the origins of lifestyles or even to the quest for extraterrestrial lifestyles. numerous novel points of extremophiles are coated during this publication; the focal point is first of all on strange and no more explored ecosystems corresponding to marine hypersaline deeps, severe chilly, desolate tract sands, and man-made fresh rooms for spacecraft meeting. Secondly, the more and more complicated box of functions from extremophile learn is taken care of and examples reminiscent of novel psychrophilic enzymes, compounds from halophiles, and detection ideas for strength extraterrestrial lifestyles kinds are presented.
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The distribution of the operational taxonomic units (OTUs; groups of sequences sharing >97% 16 S rRNA gene sequence similarity) indicated that the bacterial community of the Discovery interface is signiﬁcantly different from those inhabiting the seawater and brine. Many OTUs were speciﬁc for the Discovery brine, belonging to microbial species not present in the other DHABs. In particular, sequences belonging to the archaeal species Halorhabdus utahensis were not detected in seawater but strongly increased along the chemocline moving towards the brine, where they constituted up to the 33% of the total archaeal community.
Bjo 1 and Olafur H. Fridjonsson Matıs, Reykjavık, Iceland Department of Life and Environmental Sciences, University of Iceland, Reykjavık, Iceland 1 2 1 Introduction Geothermal areas are unique in many aspects as microbial habitats. They are rare on a global scale and geographically conﬁned. They can be regarded as islands, ecologically separated by large distances and physicochemical dispersal barriers. In a sense the global geothermal ecosystem can be considered to be a world of widely dispersed, often very different “archipelagos” with no mainland.
They are rare on a global scale and geographically conﬁned. They can be regarded as islands, ecologically separated by large distances and physicochemical dispersal barriers. In a sense the global geothermal ecosystem can be considered to be a world of widely dispersed, often very different “archipelagos” with no mainland. These and other features make geothermal sites an attractive and perhaps ideal model system for studies of microbial divergence and speciation. Microbial speciation may even be more easily observable in geothermal habitats than in other ecosystems.