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Photosynthetic recovery of desiccated intertidal seaweeds after rehydration
Ji, Y; Gao, KS; Tanaka, J; Gao, KS, Shantou Univ, Inst Marine Biol, Shantou 515063, Peoples R China
2005-08-01
Source PublicationPROGRESS IN NATURAL SCIENCE
ISSN1002-0071
Volume15Issue:8Pages:689-693
AbstractIntertidal 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.; 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.
SubtypeArticle
KeywordSeaweeds Desiccation Ernersion Intertidal Photosynthetic Recovery
DepartmentShantou 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
Subject AreaMultidisciplinary Sciences
WOS HeadingsScience & Technology ; Technology
Indexed BySCI
Language英语
WOS Research AreaMaterials Science ; Science & Technology - Other Topics
WOS SubjectMaterials Science, Multidisciplinary ; Multidisciplinary Sciences
WOS IDWOS:000232611700004
WOS KeywordFUCOID ALGAE ; TEMPERATURE ; RESPIRATION ; RHODOPHYTA ; RESISTANCE ; TOLERANCE ; EMERSION ; ABILITY ; PERIODS
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/152342/9124
Collection期刊论文
Corresponding AuthorGao, KS, Shantou Univ, Inst Marine Biol, Shantou 515063, Peoples R China
Affiliation1.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
GB/T 7714
Ji, Y,Gao, KS,Tanaka, J,et al. Photosynthetic recovery of desiccated intertidal seaweeds after rehydration[J]. PROGRESS IN NATURAL SCIENCE,2005,15(8):689-693.
APA Ji, Y,Gao, KS,Tanaka, J,&Gao, KS, Shantou Univ, Inst Marine Biol, Shantou 515063, Peoples R China.(2005).Photosynthetic recovery of desiccated intertidal seaweeds after rehydration.PROGRESS IN NATURAL SCIENCE,15(8),689-693.
MLA Ji, Y,et al."Photosynthetic recovery of desiccated intertidal seaweeds after rehydration".PROGRESS IN NATURAL SCIENCE 15.8(2005):689-693.
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