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学科主题: Multidisciplinary Sciences
题名: Photosynthetic recovery of desiccated intertidal seaweeds after rehydration
作者: Ji, Y; Gao, KS; Tanaka, J
通讯作者: Gao, KS, Shantou Univ, Inst Marine Biol, Shantou 515063, Peoples R China
关键词: seaweeds ; desiccation ; ernersion ; intertidal ; photosynthetic recovery
刊名: PROGRESS IN NATURAL SCIENCE
发表日期: 2005-08-01
卷: 15, 期:8, 页:689-693
收录类别: SCI
文章类型: Article
部门归属: Shantou Univ, Inst Marine Biol, Shantou 515063, Peoples R China; Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China; Tokyo Univ Marine Sci & Technol, Minato Ku, Tokyo 1088477, Japan
WOS标题词: Science & Technology ; Technology
类目[WOS]: Materials Science, Multidisciplinary ; Multidisciplinary Sciences
研究领域[WOS]: Materials Science ; Science & Technology - Other Topics
摘要: Intertidal seaweeds experience periodical desiccation and rehydration to different extents due to the tidal cycles and their vertical distributions. Their photosynthetic recovery process during the rehydration may show different patterns among the seaweeds from different zonations or depths at intertidal zone. In this study 12 species of seaweeds collected from the upper, middle, lower and sublittoral zones were examined. The relationship of the photosynthetic recovery to vertical distribution was assessed by comparing their patterns of photosynthetic and respiratory performances after rehydration following desiccation. Both the photosynthesis and dark respiration declined during emersion, showing certain degrees of recovery after re-immersion into seawater for most species, but the extents were markedly different from one species to the other. The species from upper intertidal zone after being rehydrated for 1 hour, following 2 hours of desiccation, achieved 100 % recovery of their initial physiological activity, while most of the lower or sublittoral species did not achieve full recovery. It is the ability to withstand desiccation stress (fast recovery during rehydration), but not that to avoid desiccation (water retaining ability) that determines the distribution of intertidal seaweeds. Such physiological behavior during rehydration after desiccation reflects the adaptive strategy of intertidal seaweeds against desiccation and their capability of primary production in the process of rehydration.
英文摘要: Intertidal seaweeds experience periodical desiccation and rehydration to different extents due to the tidal cycles and their vertical distributions. Their photosynthetic recovery process during the rehydration may show different patterns among the seaweeds from different zonations or depths at intertidal zone. In this study 12 species of seaweeds collected from the upper, middle, lower and sublittoral zones were examined. The relationship of the photosynthetic recovery to vertical distribution was assessed by comparing their patterns of photosynthetic and respiratory performances after rehydration following desiccation. Both the photosynthesis and dark respiration declined during emersion, showing certain degrees of recovery after re-immersion into seawater for most species, but the extents were markedly different from one species to the other. The species from upper intertidal zone after being rehydrated for 1 hour, following 2 hours of desiccation, achieved 100 % recovery of their initial physiological activity, while most of the lower or sublittoral species did not achieve full recovery. It is the ability to withstand desiccation stress (fast recovery during rehydration), but not that to avoid desiccation (water retaining ability) that determines the distribution of intertidal seaweeds. Such physiological behavior during rehydration after desiccation reflects the adaptive strategy of intertidal seaweeds against desiccation and their capability of primary production in the process of rehydration.
关键词[WOS]: FUCOID ALGAE ; TEMPERATURE ; RESPIRATION ; RHODOPHYTA ; RESISTANCE ; TOLERANCE ; EMERSION ; ABILITY ; PERIODS
语种: 英语
WOS记录号: WOS:000232611700004
ISSN号: 1002-0071
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/152342/9124
Appears in Collections:中科院水生所知识产出(2009年前)_期刊论文

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作者单位: 1.Shantou Univ, Inst Marine Biol, Shantou 515063, Peoples R China
2.Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
3.Tokyo Univ Marine Sci & Technol, Minato Ku, Tokyo 1088477, Japan

Recommended Citation:
JI YAN; GAO KUNSHAN and TANAKA JIRO.Photosynthetic recovery of desiccated intertidal seaweeds after rehydration,PROGRESS IN NATURAL SCIENCE,2005,15(8):689-693
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