Effects of soil water salinity on Na+ and K+ concentrations in mangrove leaves

Ball et al. identified that the concentration of K+ in leaves of Avicennia marina decreased under high salinity conditions in a culture solution. With this K+ decrease in the leaf, the photosynthetic capacity declined. This effect suggests the concentration of K+ in leaves and the soil water salinit...

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Bibliographic Details
Published inEnvironment Control in Biology Vol. 37; no. 1; pp. 31 - 42
Main Authors Tsukamoto, T. (Taisei Co. Ltd., Nagoya (Japan)), Takahashi, H, Yamaguchi, T, Shiokura, T
Format Journal Article
LanguageJapanese
English
Published Japanese Society of Agricultural, Biological and Environmental Engineers and Scientists 1999
Subjects
AGUA DEL SUELO
AVICENNIA
DJIBOUTI
EAU DU SOL
FEUILLE
HOJAS
JAPAN
JAPON
LEAVES
MANGLES
MANGROVES
PALETUVIER
POTASIO
POTASSIUM
RHIZOPHORA
SALINIDAD
SALINITE
SALINITY
SODIO
SODIUM
SOIL WATER
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Summary:Ball et al. identified that the concentration of K+ in leaves of Avicennia marina decreased under high salinity conditions in a culture solution. With this K+ decrease in the leaf, the photosynthetic capacity declined. This effect suggests the concentration of K+ in leaves and the soil water salinity are limiting factors in mangrove vegetation. We examined this hypothesis using A. marina, Rhizophora stylosa and Bruguiera gymnorrhiza in this study. This study was done in the Republic of Djibouti where the pure forest of A. marina is widely distributed and on Iriomote Island in Okinawa where R. stylosa and B. gymnorrhiza are distributed. The relationship between the concentration of K+ in leaves and the soil water salinity in R. stylosa and B. gymnorrhiza revealed no significant correlation. However, this relationship in A. marina revealed a significant correlation. And then, the relationship between concentrations of Na+ and K+ in leaves in R. stylosa and B. gymnorrhiza revealed no significant correlation. However, this relationship in A. marina revealed a significant correlation. These results may suggest that the effect caused by the concentration of K+ in leaves and the soil water salinity in A. marina is a limiting factor in the distribution of A. marina, but that hypothesis cannot be applied to R. stylosa and B. gymnorrhiza
Bibliography:F60
1999004195
ISSN:0582-4087
2185-1018
DOI:10.2525/ecb1963.37.31