干旱区生态环境知识资源中心(Arid): Keep your friends close and your competitors closer: novel interspecies interaction in desert biological sand crusts

Arid

DOI	10.1080/00318884.2020.1843349
	Keep your friends close and your competitors closer: novel interspecies interaction in desert biological sand crusts
	Kedem, Isaac; Treves, Haim; Noble, Gabriella; Hagemann, Martin; Murik, Omer; Raanan, Hagai; Oren, Nadav; Giordano, Mario; Kaplan, Aaron
通讯作者	Treves, H (corresponding author), Hebrew Univ Jerusalem, Dept Plant & Environm Sci, Edmond J Safra Campus, IL-9190401 Jerusalem, Israel.
来源期刊	PHYCOLOGIA
ISSN	0031-8884
EISSN	2330-2968
出版年	2020-12
英文摘要	The green alga Chlorella sp. and the filamentous cyanobacterium Leptolyngbya sp., regularly cope with various stressors including frequent hydration-desiccation cycles. When grown in axenic cultures, Chlorella sp. is unable to resurrect even after very slow desiccation unless desiccation takes place in the presence of Leptolyngbya sp. or a lysate thereof. When Chlorella sp. was provided with extracellular polysaccharides from Leptolyngbya sp., or its main sugar constituents, it was able to be resurrected after mild desiccation. These findings suggest that desiccation tolerance of Chlorella sp. in the field depends on the presence of Leptolyngbya sp. or components thereof. Chlorella sp. was originally isolated as a contaminant in a decaying stationary culture of Leptolyngbya sp. that was established by the addition of a cyanobacterial growth media to biological soil crusts. Co-incubation with a dialysis tube containing Leptolyngbya sp. severely inhibited growth of Chlorella sp. These data suggest that secondary metabolites excreted by Leptolyngbya sp., the nature of which is yet unknown, inhibit growth of Chlorella sp. Thus, though Leptolyngbya sp. enables the survival of Chlorella sp. in a desert habitat, it simultaneously inhibits growth of this potential competitor. The combination of positive and negative effects of Leptolyngbya sp. on fitness of Chlorella sp. creates a scenario in which the former tightly controls the abundance of the latter.
英文关键词	Biological soil crust Cyanobacteria Desiccation tolerance Green algae Interspecies interaction
类型	Article ; Early Access
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000596976200001
WOS关键词	SOIL CRUSTS ; CYANOBACTERIA ; DESICCATION ; EXOPOLYSACCHARIDES ; PHOTOPROTECTION ; DIVERSITY ; GROWTH ; CANNOT ; ALGAE ; LIGHT
WOS类目	Plant Sciences ; Marine & Freshwater Biology
WOS研究方向	Plant Sciences ; Marine & Freshwater Biology
来源机构	Hebrew University of Jerusalem
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/352419
作者单位	[Kedem, Isaac; Treves, Haim; Noble, Gabriella; Murik, Omer; Raanan, Hagai; Oren, Nadav; Kaplan, Aaron] Hebrew Univ Jerusalem, Dept Plant & Environm Sci, Edmond J Safra Campus, IL-9190401 Jerusalem, Israel; [Hagemann, Martin; Oren, Nadav] Univ Rostock, Inst Biowissensch, Abt Pflanzenphysiol, A Einstein Str 3, D-18059 Rostock, Germany; [Raanan, Hagai] Agr Res Org, Gilat Res Ctr, Inst Plant Protect, IL-85280 Negev, Israel; [Giordano, Mario] Univ Politecn Marche, Dipartimento Sci Vita & Ambiente, I-60121 Ancona, Italy
推荐引用方式 GB/T 7714	Kedem, Isaac,Treves, Haim,Noble, Gabriella,et al. Keep your friends close and your competitors closer: novel interspecies interaction in desert biological sand crusts[J]. Hebrew University of Jerusalem,2020.
APA	Kedem, Isaac.,Treves, Haim.,Noble, Gabriella.,Hagemann, Martin.,Murik, Omer.,...&Kaplan, Aaron.(2020).Keep your friends close and your competitors closer: novel interspecies interaction in desert biological sand crusts.PHYCOLOGIA.
MLA	Kedem, Isaac,et al."Keep your friends close and your competitors closer: novel interspecies interaction in desert biological sand crusts".PHYCOLOGIA (2020).