{"title":"Surviving deadly radiation: Lessons from tardigrades.","authors":"Swati Ghosh, Divya Vishnu, Shravani Pillanjinayya, Sandeep Eswarappa","doi":"","DOIUrl":null,"url":null,"abstract":"<p><p>Life on Earth is viable within a narrow window of physical parameters such as temperature, atmospheric pressure, oxygen concentration, etc. Fortunately, all these parameters are within that life-permissive window in most parts of our planet. Although most organisms cannot live beyond a limited range of these parameters, some fascinating lifeforms can survive, and some of them can even thrive, in extreme physical conditions beyond the optimal range. For example, <i>Methanopyrus kandleri</i>, a methanogenic archaeon, thrives at 122 °C (Takai <i>et al</i>. 2008). Archaea belonging to the genus <i>Picrophilus</i> can withstand pH values below 0.5 (Schleper <i>et al</i>. 1995). While just 5-10 Gy of radiation is fatal to humans, the bacterium <i>Deinococcus radiodurans</i> can tolerate 5000 Gy of radiation (Battista 1997; Krisko and Radman 2013).</p>","PeriodicalId":15171,"journal":{"name":"Journal of Biosciences","volume":"50 ","pages":""},"PeriodicalIF":1.9000,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Biosciences","FirstCategoryId":"99","ListUrlMain":"","RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"BIOLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
Life on Earth is viable within a narrow window of physical parameters such as temperature, atmospheric pressure, oxygen concentration, etc. Fortunately, all these parameters are within that life-permissive window in most parts of our planet. Although most organisms cannot live beyond a limited range of these parameters, some fascinating lifeforms can survive, and some of them can even thrive, in extreme physical conditions beyond the optimal range. For example, Methanopyrus kandleri, a methanogenic archaeon, thrives at 122 °C (Takai et al. 2008). Archaea belonging to the genus Picrophilus can withstand pH values below 0.5 (Schleper et al. 1995). While just 5-10 Gy of radiation is fatal to humans, the bacterium Deinococcus radiodurans can tolerate 5000 Gy of radiation (Battista 1997; Krisko and Radman 2013).
期刊介绍:
The Journal of Biosciences is a quarterly journal published by the Indian Academy of Sciences, Bangalore. It covers all areas of Biology and is the premier journal in the country within its scope. It is indexed in Current Contents and other standard Biological and Medical databases. The Journal of Biosciences began in 1934 as the Proceedings of the Indian Academy of Sciences (Section B). This continued until 1978 when it was split into three parts : Proceedings-Animal Sciences, Proceedings-Plant Sciences and Proceedings-Experimental Biology. Proceedings-Experimental Biology was renamed Journal of Biosciences in 1979; and in 1991, Proceedings-Animal Sciences and Proceedings-Plant Sciences merged with it.