干旱区生态环境知识资源中心(Arid): Myxospermous seed-mucilage quantity correlates with environmental gradients indicative of water-deficit stress: Plantago species as a model

Arid

DOI	10.1007/s11104-019-04335-z
	Myxospermous seed-mucilage quantity correlates with environmental gradients indicative of water-deficit stress: Plantago species as a model
	Teixeira, Antonio 1,2,4; Iannetta, Pietro 3; Binnie, Kirsty 3; Valentine, Tracy A.3; Toorop, Peter 1
通讯作者	Teixeira, Antonio
来源期刊	PLANT AND SOIL
ISSN	0032-079X
EISSN	1573-5036
出版年	2020
卷号	446 期号:1-2 页码:343-356
英文摘要	Aims Myxospermous seed mucilage is multifunctional and is often found in seeds (or achenes) of species occupying arid environments where the trait may influence seed-dispersal and -germination of seeds. The seed mucilage may also enhance soil-water retention, -hydraulic conductivity and -stability. However, the relationship between seed mucilage quantity, seed germination and seedling traits across environmental gradients which determine water-deficit stress has not yet been ascertained. Methods Therefore, we characterised and tested the relationship between seed mucilage quantity, water-deficit stress responses of seeds and seedlings of 36 accessions of four different Plantago species (P. albicans L., P. coronopus L., P. lagopus L. and P. anceolata L.). These were gathered from six regions across Europe, which presented environmental gradients (of rainfall and temperature), and varying soil qualities. Results Seed mucilage was significantly greater in seeds of accessions experiencing: highest summer temperatures; lowest summer precipitation; soils of the same warm dry regions which had greater capacity to retain water within narrow pore spaces. Under water-deficit stress, seeds with most mucilage exhibited a lower base water potential for germination, suffered least seedling mortality and exhibited the most successful seedling development. Conclusions The findings indicate that seed mucilage quantity appeared as an 'adaptive' trait and there is a relationship between seed-mucilage quantity, seed germination plus seedling survival and development under environmental conditions of highest water-deficit stress.
英文关键词	Myxospermy Seed Water-deficit Soil Plantago
类型	Article
语种	英语
国家	England ; Italy ; Scotland ; Portugal
开放获取类型	hybrid
收录类别	SCI-E
WOS记录号	WOS:000498092800002
WOS关键词	ROOT ELONGATION ; PENETRATION RESISTANCE ; GERMINATION ; SOIL ; DISPERSAL ; EXPANSION ; CORONOPUS ; DYNAMICS ; DROUGHT ; GROWTH
WOS类目	Agronomy ; Plant Sciences ; Soil Science
WOS研究方向	Agriculture ; Plant Sciences
EI主题词	2019-11-23
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/310975
作者单位	1.Royal Bot Gardens, Dept Comparat Plant & Fungal Biol, Wellcome Trust Millennium Bldg,Walcehurst Pl, Ardingly RH17 6TN, W Sussex, England; 2.Univ Pavia, Earth & Environm Sci Dept, Via S Epifanio 14, I-27100 Pavia, Italy; 3.James Hutton Inst, Ecol Sci, Dundee DD2 5DA, Scotland; 4.Univ Minho, Ctr Mol & Environm Biol CBMA, Braga, Portugal
推荐引用方式 GB/T 7714	Teixeira, Antonio,Iannetta, Pietro,Binnie, Kirsty,et al. Myxospermous seed-mucilage quantity correlates with environmental gradients indicative of water-deficit stress: Plantago species as a model[J],2020,446(1-2):343-356.
APA	Teixeira, Antonio,Iannetta, Pietro,Binnie, Kirsty,Valentine, Tracy A.,&Toorop, Peter.(2020).Myxospermous seed-mucilage quantity correlates with environmental gradients indicative of water-deficit stress: Plantago species as a model.PLANT AND SOIL,446(1-2),343-356.
MLA	Teixeira, Antonio,et al."Myxospermous seed-mucilage quantity correlates with environmental gradients indicative of water-deficit stress: Plantago species as a model".PLANT AND SOIL 446.1-2(2020):343-356.