Arid
DOI10.1128/mSystems.00495-19
Energetic Basis of Microbial Growth and Persistence in Desert Ecosystems
Leung, Pok Man1,2; Bay, Sean K.1,2; Meier, Dimitri, V3; Chiri, Eleonora1,2; Cowan, Don A.4; Gillor, Osnat5; Woebken, Dagmar3; Greening, Chris1,2
通讯作者Leung, Pok Man ; Greening, Chris
来源期刊MSYSTEMS
ISSN2379-5077
出版年2020
卷号5期号:2
英文摘要Microbial life is surprisingly abundant and diverse in global desert ecosystems. In these environments, microorganisms endure a multitude of physicochemical stresses, including low water potential, carbon and nitrogen starvation, and extreme temperatures. In this review, we summarize our current understanding of the energetic mechanisms and trophic dynamics that underpin microbial function in desert ecosystems. Accumulating evidence suggests that dormancy is a common strategy that facilitates microbial survival in response to water and carbon limitation. Whereas photoautotrophs are restricted to specific niches in extreme deserts, metabolically versatile heterotrophs persist even in the hyper-arid topsoils of the Atacama Desert and Antarctica. At least three distinct strategies appear to allow such microorganisms to conserve energy in these oligotrophic environments: degradation of organic energy reserves, rhodopsin- and bacteriochlorophyll-dependent light harvesting, and oxidation of the atmospheric trace gases hydrogen and carbon monoxide. In turn, these principles are relevant for understanding the composition, functionality, and resilience of desert ecosystems, as well as predicting responses to the growing problem of desertification.
英文关键词desert dormancy energetics energy reserve photosynthesis trace gas
类型Review
语种英语
国家Australia ; Austria ; South Africa ; Israel
开放获取类型Green Published, gold
收录类别SCI-E
WOS记录号WOS:000531077500021
WOS关键词ATMOSPHERIC TRACE GASES ; SOR RONDANE MOUNTAINS ; CARBON-MONOXIDE ; MOLECULAR-HYDROGEN ; HIGH-AFFINITY ; CYANOBACTERIAL EXOPOLYSACCHARIDES ; COMMUNITY RESPONSE ; ATACAMA DESERT ; SOIL CRUSTS ; DRY SOIL
WOS类目Microbiology
WOS研究方向Microbiology
来源机构Ben-Gurion University of the Negev
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/318862
作者单位1.Monash Univ, Sch Biol Sci, Clayton, Vic, Australia;
2.Biomed Discovery Inst, Dept Microbiol, Clayton, Vic, Australia;
3.Univ Vienna, Ctr Microbiol & Environm Syst Sci, Div Microbial Ecol, Vienna, Austria;
4.Univ Pretoria, Ctr Microbial Ecol & Genom, Pretoria, South Africa;
5.Ben Gurion Univ Negev, Zuckerberg Inst Water Res, Blaustein Inst Desert Res, Sede Boqer, Israel
推荐引用方式
GB/T 7714
Leung, Pok Man,Bay, Sean K.,Meier, Dimitri, V,et al. Energetic Basis of Microbial Growth and Persistence in Desert Ecosystems[J]. Ben-Gurion University of the Negev,2020,5(2).
APA Leung, Pok Man.,Bay, Sean K..,Meier, Dimitri, V.,Chiri, Eleonora.,Cowan, Don A..,...&Greening, Chris.(2020).Energetic Basis of Microbial Growth and Persistence in Desert Ecosystems.MSYSTEMS,5(2).
MLA Leung, Pok Man,et al."Energetic Basis of Microbial Growth and Persistence in Desert Ecosystems".MSYSTEMS 5.2(2020).
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