文献类型：期刊文献

中文题名：Trade-off between leaf chlorophyll and betacyanins in Suaeda salsa in the Liaohe estuary wetland in northeast China

作者：Youzhi Li[1,2] Lijuan Cui[1] Xin Yao[2] Xiaohui Ding[2] Xu Pan[1] Manyin Zhang[1] Wei Li[1] Xiaoming Kang[1]

第一作者：Youzhi Li

机构：[1]Institute of Wetland Research,Chinese Academy of Forestry,Xiangshan Road,Haidian District,Beijing 100091,China;[2]College of Bioscience and Biotechnology,Hunan Agricultural University,Nongda Road,Furong District,Changsha 410128,China

年份：2018

卷号：11

期号：4

起止页码：569-575

中文期刊名：植物生态学报（英文版）

外文期刊名：Journal of Plant Ecology

收录：Scopus;CSCD:【CSCD2017_2018】；

基金：This study was supported by the Forestry Industry Research Special Funds for Public Welfare Project(201404305).

语种：英文

中文关键词：Suaeda salsa;pigment composition;soil Na+content;Liaohe estuary wetland

分类号：Q94

摘要：Aims Pigment composition is an important functional trait that can be affected by environmental factors.the objective of this study was to investigate the effect of soil salinity on pigment composition in Suaeda salsa by comparing chlorophyll and betacyanin content in the Liaohe estuary wetland,a typical coastal wetland in northeast China.Methods We investigated the plant biomass,percentage of red leaves and pigment content(chlorophyll a,chlorophyll b and betacyanins)in S.salsa in intertidal and supratidal zones of the upper,middle and lower reaches of the Liaohe estuary wetlands.the Na^(+)content of both the soil and plant was also measured.Full analysis of variance and multivariate analysis were used to compare differences in pig-ment content and Na^(+)content between the supratidal and intertidal zones.Important Findings Pigment composition was significantly affected by soil salinity.With increasing soil salinity,the percentage of red leaves was higher in the intertidal zone than in the supratidal zone.In all three reaches,plants had lower chlorophyll a content and higher betacyanin con-tent in the intertidal zone than in the supratidal zone.Compared to chlorophyll a,chlorophyll b was less sensitive to soil salinity.there were no differences in chlorophyll b content between the intertidal and supratidal zones in the upper and lower reaches.Furthermore,pigment composition was associated with both the plant tissue and soil Na^(+)content.Compared to the supratidal zone,the intertidal zone had a higher Na^(+)content in plants.there was a negative rela-tionship between plant chlorophyll content and soil Na^(+)content,but a positive relationship between betacyanin content and soil Na^(+)content.Overall,the results indicated that there might be a trade-off between leaf chlorophyll and betacyanin content in S.salsa to main-tain its growth and survival in high salinity environments.