Water and nutrient relationships between a mistletoe and its mangrove host under saline conditions

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	Water and nutrient relationships between a mistletoe and its mangrove host under saline conditions
	Chen, Luzhen ; Huang, Li ; Li, Xiaofei ; You, Siyang ; Yang, Shengchang ; Zhang, Yihui ; Wang, Wenqing ; Chen LZ(陈鹭真) ; Yang SC(杨盛昌) ; Zhang YH(张宜辉) ; Wang WQ(王文卿)
刊名	http://dx.doi.org/10.1071/FP12218
	2013
关键词	XYLEM-TAPPING MISTLETOES CARBON-ISOTOPE DISCRIMINATION BEHRIANA F-MUELL EX MIQ TIEGH CHLOROPHYLL FLUORESCENCE XANTHOPHYLL CYCLE GAS-EXCHANGE PHOTOSYNTHETIC CAPACITY NITROGEN RELATIONSHIPS MESOPHYLL CONDUCTANCE
英文摘要	National Natural Science Foundation of China [40776046]; Xylem-tapping mistletoes are known to have generally higher transpiration rate (T-r), lower CO2 assimilation rate (A) and therefore lower water-use efficiency (WUE) than their hosts. There are long-standing contradictions in water relations and nitrogen use in photosynthesis. Gas exchange, chlorophyll fluorescence and nutrition components were investigated in a special mistletoe-host pair, Viscum ovalifolium-Sonneratia caseolaris, as the host was a mangrove growing in a saline environment. Our results show that both plants had high foliar N content, therefore it was consistent with the N-parasitism hypothesis, although the mistletoe had a lower T-r than its mangrove host. It was suggested that the mistletoe reduces its T-r under salt stress with N sufficient conditions. The mistletoe had a fundamental limitation of photosynthesis, and was photoinhibited with regard to high salinity, but it developed more photoprotection to thermal radiation. Additionally, both stomatal conductance (g(s)) and mesophyll conductance (g(m)) limitations on photosynthesis dominated in the mistletoe under salt stress even though it had a high foliar N content similar to the host.
语种	英语
出版者	CSIRO PUBLISHING
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/90647]
专题	生命科学－已发表论文
推荐引用方式 GB/T 7714	Chen, Luzhen,Huang, Li,Li, Xiaofei,et al. Water and nutrient relationships between a mistletoe and its mangrove host under saline conditions[J]. http://dx.doi.org/10.1071/FP12218,2013.
APA	Chen, Luzhen.,Huang, Li.,Li, Xiaofei.,You, Siyang.,Yang, Shengchang.,...&王文卿.(2013).Water and nutrient relationships between a mistletoe and its mangrove host under saline conditions.http://dx.doi.org/10.1071/FP12218.
MLA	Chen, Luzhen,et al."Water and nutrient relationships between a mistletoe and its mangrove host under saline conditions".http://dx.doi.org/10.1071/FP12218 (2013).