干旱区生态环境知识资源中心(Arid): Terrestrial Green Algae Show Higher Tolerance to Dehydration than Do Their Aquatic Sister-Species

Arid

DOI	10.1007/s00248-020-01679-3
	Terrestrial Green Algae Show Higher Tolerance to Dehydration than Do Their Aquatic Sister-Species
	Terlova, Elizaveta F.; Holzinger, Andreas; Lewis, Louise A.
通讯作者	Terlova, EF (corresponding author), Univ Connecticut, Dept Ecol & Evolutionary Biol, Storrs, CT 06269 USA.
来源期刊	MICROBIAL ECOLOGY
ISSN	0095-3628
EISSN	1432-184X
出版年	2021
英文摘要	Diverse algae possess the ability to recover from extreme desiccation without forming specialized resting structures. Green algal genera such as Tetradesmus (Sphaeropleales, Chlorophyceae) contain temperate terrestrial, desert, and aquatic species, providing an opportunity to compare physiological traits associated with the transition to land in closely related taxa. We subjected six species from distinct habitats to three dehydration treatments varying in relative humidity (RH 5%, 65%, 80%) followed by short- and long-term rehydration. We tested the capacity of the algae to recover from dehydration using the effective quantum yield of photosystem II as a proxy for physiological activity. The degree of recovery was dependent both on the habitat of origin and the dehydration scenario, with terrestrial, but not aquatic, species recovering from dehydration. Distinct strains of each species responded similarly to dehydration and rehydration, with the exception of one aquatic strain that recovered from the mildest dehydration treatment. Cell ultrastructure was uniformly maintained in both aquatic and desert species during dehydration and rehydration, but staining with an amphiphilic styryl dye indicated damage to the plasma membrane from osmotically induced water loss in the aquatic species. These analyses demonstrate that terrestrial Tetradesmus possess a vegetative desiccation tolerance phenotype, making these species ideal for comparative omics studies.
英文关键词	Desert algae Vegetative desiccation tolerance Dehydration PSII fluorescence Cell ultrastructure
类型	Article ; Early Access
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000612251500001
WOS类目	Ecology ; Marine & Freshwater Biology ; Microbiology
WOS研究方向	Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Microbiology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/352393
作者单位	[Terlova, Elizaveta F.; Lewis, Louise A.] Univ Connecticut, Dept Ecol & Evolutionary Biol, Storrs, CT 06269 USA; [Holzinger, Andreas] Univ Innsbruck, Dept Bot, Funct Plant Biol, Innsbruck, Austria
推荐引用方式 GB/T 7714	Terlova, Elizaveta F.,Holzinger, Andreas,Lewis, Louise A.. Terrestrial Green Algae Show Higher Tolerance to Dehydration than Do Their Aquatic Sister-Species[J],2021.
APA	Terlova, Elizaveta F.,Holzinger, Andreas,&Lewis, Louise A..(2021).Terrestrial Green Algae Show Higher Tolerance to Dehydration than Do Their Aquatic Sister-Species.MICROBIAL ECOLOGY.
MLA	Terlova, Elizaveta F.,et al."Terrestrial Green Algae Show Higher Tolerance to Dehydration than Do Their Aquatic Sister-Species".MICROBIAL ECOLOGY (2021).