Species specific and environment induced variation of delta C-13 and delta N-15 in alpine plants

doi:10.3389/fpls.2015.00423

	Species specific and environment induced variation of delta C-13 and delta N-15 in alpine plants
	Yang, Yang; Siegwolf, Rolf T. W.; Koerner, Christian
	2015-06-05
发表期刊	FRONTIERS IN PLANT SCIENCE
卷号	6
摘要	Stable carbon and nitrogen isotope signals in plant tissues integrate plant-environment interactions over long periods. In this study, we hypothesized that humid alpine life conditions are narrowing the scope for significant deviations from common carbon, water and nitrogen relations as captured by stable isotope signals. We explored the variation in delta C-13 and delta N-15 in 32 plant species from tissue type to ecosystem scale across a suite of locations at c. Two thousand five hundred meter elevation in the Swiss Alps. Foliar delta C-13 and delta N-15 varied among species by about 3-4 parts per thousand and 7-8 parts per thousand respectively. However, there was no overall difference in means of delta C-13 and delta N-15 for species sampled in different plant communities or when bulk plant dry matter harvests of different plant communities were compared. delta C-13 was found to be highly species specific, so that the ranking among species was mostly maintained across 11 habitats. However, delta N-15 varied significantly from place to place in all species (a range of 2.7 parts per thousand) except in Fabaceae (Trifolium alpinum) and Juncaceae (Luzula lutea). There was also a substantial variation among individuals of the same species collected next to each other. No difference was found in foliar delta N-15 of non-legumes, which were either collected next to or away from the most common legume, T alpinurn. delta N-15 data place Cyperaceae and Juncaceae, just like Fabaceae, in a low discrimination category, well separated from other families. Soil delta N-15 was higher than in plants and increased with soil depth. The results indicate a high functional diversity in alpine plants that is similar to that reported for low elevation plants. We conclude that the surprisingly high variation in delta C-13 and delta N-15 signals in the studied high elevation plants is largely species specific (genetic) and insensitive to obvious environmental cues.
关键词	Biodiversity Carbon Nitrogen N-2 Fixation Soil Stable Isotope
DOI	10.3389/fpls.2015.00423
收录类别	SCI
语种	英语
WOS记录号	WOS:000357057400001
引用统计	被引频次：31[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.kib.ac.cn/handle/151853/24953
专题	中国科学院东亚植物多样性与生物地理学重点实验室
推荐引用方式 GB/T 7714	Yang, Yang,Siegwolf, Rolf T. W.,Koerner, Christian. Species specific and environment induced variation of delta C-13 and delta N-15 in alpine plants[J]. FRONTIERS IN PLANT SCIENCE,2015,6.
APA	Yang, Yang,Siegwolf, Rolf T. W.,&Koerner, Christian.(2015).Species specific and environment induced variation of delta C-13 and delta N-15 in alpine plants.FRONTIERS IN PLANT SCIENCE,6.
MLA	Yang, Yang,et al."Species specific and environment induced variation of delta C-13 and delta N-15 in alpine plants".FRONTIERS IN PLANT SCIENCE 6(2015).

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