Structural defence is coupled with the leaf economic spectrum across saplings of spiny species

doi:10.1111/oik.06960

CORC > 西双版纳热带植物园 > 中国科学院西双版纳热带植物园 > 2012年后新成立研究组

	Structural defence is coupled with the leaf economic spectrum across saplings of spiny species
	Armani, Mohammed 3; Goodale, Uromi M.; Charles-Dominique, Tristan ; Barton, Kasey E.; Yao, Xin ; Tomlinson, Kyle W.
刊名	OIKOS
	2020
卷号	129 期号:5 页码:740-752
关键词	RELATIVE GROWTH-RATE PLANT SPINESCENCE FUNCTIONAL TRAITS SAVANNA TREES TRADE-OFFS HERBIVORY PATTERNS STRATEGIES TOLERANCE TOUGHNESS
ISSN号	0030-1299
DOI	10.1111/oik.06960
英文摘要	Given that the rate of resource capture constrains plant growth and defence, understanding the linkage between the leaf economic spectrum (LES) and defence and how it contributes to growth is central to predicting species performance. In spite of the prevalence of spiny plants in many plant communities, little is known about how the LES relates to defence and growth rate across these species. We grew 42 spiny species, from diverse environments, under common garden conditions for 15 weeks and measured LES (leaf N, SLA and assimilation rate), defence and growth traits. We assessed general relationships between LES and growth rate and tested whether structural defences (spines, leaf fibre and lignin content) and quantitative chemical defences (condensed tannins) are linked to the LES and growth and if different spine types (i.e. leaf spines, stipular spines, prickles and thorns), with distinct anatomical origins, partition out across the LES. We observed two independent trait axes that together explained ~68% of trait variation across species. The first axis showed that structural defences (spines, leaf fibre and lignin content) trade off with leaf productivity along the LES. Axis 2 revealed that condensed tannins is orthogonal and less integrated with the LES-structural defence axis. Bivariate trait analyses disclosed positive covariations between LES traits and sapling growth rate. All structural defence traits were negatively related to sapling growth. Across spine types, species with leaf spines were associated with the conservative end of the LES, characterized by high structural defences and lower leaf productivity relative to other spine types. Synthesis: Our study shows that the LES and structural defences are coupled in spiny species such that constitutive growth - defence strategies range from fast-growing species with low allocation to defences to slow-growing species that invest heavily in structural defences (dominated by leaf spiny species).
学科主题	Environmental Sciences & Ecology
语种	英语
WOS记录号	WOS:000529532800012
内容类型	期刊论文
源URL	[http://ir.xtbg.org.cn/handle/353005/11680]
专题	西双版纳热带植物园_2012年后新成立研究组
作者单位	1.Univ Chinese Acad Sci, Beijing, Peoples R China 2.Goodale, Uromi M.] Guangxi Univ, Coll Forestry, Guangxi Key Lab Forest Ecol & Conservat, Plant Ecophysiol & Evolut Grp,Regenerat Ecol Seed, Nanning, Guangxi, Peoples R China 3.[Armani, Mohammed; Yao, Xin; Tomlinson, Kyle W.] Chinese Acad Sci, Xishuangbanna Trop Bot Garden, Ctr Integrat Conservat, CN-666303 Mengla, Yunnan, Peoples R China 4.Goodale, Uromi M.] Guangxi Univ, State Key Lab Conservat & Utilizat Subtrop Agrobi, Nanning, Guangxi, Peoples R China 5.Sorbonne Univ, UMR 7618, CNRS, Inst Ecol & Environm Sci Paris, Paris, France 6.Barton, Kasey E.] Univ Hawaii Manoa, Dept Bot, Honolulu, HI 96822 USA
推荐引用方式 GB/T 7714	Armani, Mohammed,Goodale, Uromi M.,Charles-Dominique, Tristan,et al. Structural defence is coupled with the leaf economic spectrum across saplings of spiny species[J]. OIKOS,2020,129(5):740-752.
APA	Armani, Mohammed,Goodale, Uromi M.,Charles-Dominique, Tristan,Barton, Kasey E.,Yao, Xin,&Tomlinson, Kyle W..(2020).Structural defence is coupled with the leaf economic spectrum across saplings of spiny species.OIKOS,129(5),740-752.
MLA	Armani, Mohammed,et al."Structural defence is coupled with the leaf economic spectrum across saplings of spiny species".OIKOS 129.5(2020):740-752.