干旱区生态环境知识资源中心(Arid): The ecological roles of seed mucilage on germination of Lepidium perfoliatum, a desert herb with typical myxospermy in Xinjiang

Arid

DOI	10.1007/s10725-021-00702-y
	The ecological roles of seed mucilage on germination of Lepidium perfoliatum, a desert herb with typical myxospermy in Xinjiang
	Zhou, Zixin; Xing, Jiajia; Zhao, Juan; Liu, Lihong; Gu, Lili; Lan, Haiyan
通讯作者	Lan, HY (corresponding author), Xinjiang Univ, Xinjiang Key Lab Biol Resources & Genet Engn, Coll Life Sci & Technol, Urumqi 830046, Peoples R China. ; Gu, LL (corresponding author), Xinjiang Agr Univ, Xinjiang Key Lab Grassland Resources & Ecol, Coll Grassland & Environm Sci, Urumqi 830052, Peoples R China.
来源期刊	PLANT GROWTH REGULATION
ISSN	0167-6903
EISSN	1573-5087
出版年	2021-03
英文摘要	Myxospermy is considered as an adaptation to unideal habitats, which is characterized as a gelatinous layer of mucilage around the seed upon contact with water. Studies on the ecological roles of seed mucilage should provide valuable information on seed germination strategy. In the present study, the germination properties of Lepidium perfoliatum L., an early spring ephemeral plant with typical myxospermy in desert of northwestern China, were investigated with the intact seeds and demucilaged seeds under different conditions. Results revealed that, firstly, the seed mucilage was essential for intact seeds to germinate quickly and efficiently under abundant or excess water condition, while had no effect on relief of seed germination at low water potential or other stressful conditions; secondly, the presence of mucilage layer stimulated intact seed germination under relatively higher temperature, appropriate light, permeable soil matrix, which helps seed germinate efficiently under favorable conditions; thirdly, the existence of mucilage may limit air diffusion into seed and subsequently reduce germination, which might be a strategy to ensure a proportion of seeds staying in soil seed bank to wait for next favourable conditions. Our results suggest that the seed mucilage of L. perfoliatum applies multiple ecological roles in protection of seed germination to avoid unfavourable conditions, which should be an adaptation strategy for population survival and succession in a harsh desert environment.
英文关键词	Ecological role Lepidium perfoliatum L Mucilage Seed germination Stress
类型	Article ; Early Access
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000629474100001
WOS类目	Plant Sciences
WOS研究方向	Plant Sciences
来源机构	新疆大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/352435
作者单位	[Zhou, Zixin; Xing, Jiajia; Zhao, Juan; Liu, Lihong; Lan, Haiyan] Xinjiang Univ, Xinjiang Key Lab Biol Resources & Genet Engn, Coll Life Sci & Technol, Urumqi 830046, Peoples R China; [Gu, Lili] Xinjiang Agr Univ, Xinjiang Key Lab Grassland Resources & Ecol, Coll Grassland & Environm Sci, Urumqi 830052, Peoples R China
推荐引用方式 GB/T 7714	Zhou, Zixin,Xing, Jiajia,Zhao, Juan,et al. The ecological roles of seed mucilage on germination of Lepidium perfoliatum, a desert herb with typical myxospermy in Xinjiang[J]. 新疆大学,2021.
APA	Zhou, Zixin,Xing, Jiajia,Zhao, Juan,Liu, Lihong,Gu, Lili,&Lan, Haiyan.(2021).The ecological roles of seed mucilage on germination of Lepidium perfoliatum, a desert herb with typical myxospermy in Xinjiang.PLANT GROWTH REGULATION.
MLA	Zhou, Zixin,et al."The ecological roles of seed mucilage on germination of Lepidium perfoliatum, a desert herb with typical myxospermy in Xinjiang".PLANT GROWTH REGULATION (2021).