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学科主题: Ecology; Soil Science
题名: Effects of drought and salt stresses on man-made cyanobacterial crusts
作者: Lan, Shubin1, 2; Wu, Li1, 2; Zhang, Delu1, 3; Hu, Chunxiang1; Liu, Yongding1
通讯作者: Hu, CX, Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Donghu Nanlu 7, Wuhan 430072, Peoples R China
关键词: Drought stress ; Salt stress ; Biological soil crusts ; Biomass ; Photosynthetic activity
刊名: EUROPEAN JOURNAL OF SOIL BIOLOGY
发表日期: 2010-11-01
DOI: 10.1016/j.ejsobi.2010.08.002
卷: 46, 期:6, 页:381-386
收录类别: SCI
文章类型: Article
部门归属: [Lan, Shubin; Wu, Li; Zhang, Delu; Hu, Chunxiang; Liu, Yongding] Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China; [Lan, Shubin; Wu, Li] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China; [Zhang, Delu] Wuhan Univ Technol, Dept Biol Sci & Biotechnol, Wuhan 430070, Peoples R China
WOS标题词: Science & Technology ; Life Sciences & Biomedicine
资助者: National Natural Science Foundation of China [30770395, 30870470]; National Principal Expert Program [2008ZX07103-004, 2008ZX07103-007, 2009ZX07210-009]; Wuhan Science and Technology Bureau ; Inner Mongolia Planning Committee on high-tech industrialization
类目[WOS]: Ecology ; Soil Science
研究领域[WOS]: Environmental Sciences & Ecology ; Agriculture
摘要: As a primary successional stage of biological soil crusts (BSCs) cyanobacterial crusts form firstly in the arid and semiarid areas At the same time they suffer many stress conditions such as drought salt etc In this study we constructed man-made cyanobacterial crusts with Microcoleus vaginatus Gom and comparatively studied the effects of drought and salt stresses on the crusts The results showed that crust growth and photosynthetic activity was significantly inhibited by the stress conditions (P < 0 05) and inhibitory effect Increased with the increasing stress intensity and treated time Compared with salt stress drought completely stopped crust metabolic activity so the crust biomass was conserved at a higher level which meant that drought itself might provide the crusts some protection especially when the crusts simultaneously suffered drought and salt stresses That is very important for the survival of crusts in the high-salt areas In addition to some extent the crusts could adapt to the stress conditions through metabolic adjustment In our experiment we found the accumulation of exopolysaccharides (EPS) increased under stress conditions within a certain threshold (C) 2010 Elsevier Masson SAS All rights reserved
英文摘要: As a primary successional stage of biological soil crusts (BSCs) cyanobacterial crusts form firstly in the arid and semiarid areas At the same time they suffer many stress conditions such as drought salt etc In this study we constructed man-made cyanobacterial crusts with Microcoleus vaginatus Gom and comparatively studied the effects of drought and salt stresses on the crusts The results showed that crust growth and photosynthetic activity was significantly inhibited by the stress conditions (P < 0 05) and inhibitory effect Increased with the increasing stress intensity and treated time Compared with salt stress drought completely stopped crust metabolic activity so the crust biomass was conserved at a higher level which meant that drought itself might provide the crusts some protection especially when the crusts simultaneously suffered drought and salt stresses That is very important for the survival of crusts in the high-salt areas In addition to some extent the crusts could adapt to the stress conditions through metabolic adjustment In our experiment we found the accumulation of exopolysaccharides (EPS) increased under stress conditions within a certain threshold (C) 2010 Elsevier Masson SAS All rights reserved
关键词[WOS]: BIOLOGICAL SOIL CRUSTS ; DESICCATION-TOLERANCE ; MICROBIAL-POPULATIONS ; HEATED SOILS ; ALGAL CRUSTS ; GREEN-ALGAE ; BLUE-GREEN ; DESERT ; INOCULATION ; PHOTOINHIBITION
语种: 英语
WOS记录号: WOS:000284991500006
ISSN号: 1164-5563
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/14390
Appears in Collections:藻类生物学及应用研究中心_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
3.Wuhan Univ Technol, Dept Biol Sci & Biotechnol, Wuhan 430070, Peoples R China

Recommended Citation:
Lan, Shubin; Wu, Li; Zhang, Delu; Hu, Chunxiang; Liu, Yongding.Effects of drought and salt stresses on man-made cyanobacterial crusts,EUROPEAN JOURNAL OF SOIL BIOLOGY,2010,46(6):381-386
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