干旱区生态环境知识资源中心(Arid): Seed Biology of Lepidium apetalum (Brassicaceae), with Particular Reference to Dormancy and Mucilage Development

Arid

DOI	10.3390/plants9030333
	Seed Biology of Lepidium apetalum (Brassicaceae), with Particular Reference to Dormancy and Mucilage Development
	Zhang, Keliang 1; Zhang, Yin 1; Ji, Yusong 1; Walck, Jeffrey L.2; Tao, Jun 1
通讯作者	Tao, Jun
来源期刊	PLANTS-BASEL
EISSN	2223-7747
出版年	2020
卷号	9 期号:3
英文摘要	Lepidium apetalum (Brassicaceae) is an annual or biennial weed widely distributed in Asia and Europe. The outer surface of L. apetalum seeds produces a large amount of mucilage. The primary aim of this study was to explore the dormancy characteristics and to determine how mucilage develops. The role of mucilage in water absorption/dehydration, the effects of after-ripening, gibberellin acid (GA(3)), cold stratification and seed coat scarification on germination, the role of mucilage in germination and seedling growth during drought, and the progress of mucilage production during seed development were investigated. The results indicate that the best temperature regime for germination was 10/20 degrees C. After-ripening, GA(3) and seed coat scarification helped to break dormancy. Light promoted germination. Seedling growth of mucilaged seeds were significantly higher than those of demucilaged seeds at -0.606 and -1.027 MPa. Anatomical changes during seed development showed that mucilage was derived from the outer layer of the outer integument cells. Our findings suggest that seeds of L. apetalum exhibited non-deep physiological dormancy. The dormancy characteristics along with mucilage production give seeds of L. apetalum a competitive advantage over other species, and thus contribute to its potential as a weed. Effective control of this weed can be achieved by deep tillage.
英文关键词	germination Lepidium apetalum mucilage osmotic potential seed coat seedling growth
类型	Article
语种	英语
国家	Peoples R China ; USA
开放获取类型	gold, Green Published
收录类别	SCI-E
WOS记录号	WOS:000525315000036
WOS关键词	COAT DEVELOPMENT ; SECRETORY-CELLS ; GERMINATION ; DESERT ; DIFFERENTIATION ; ASTERACEAE ; REMOVAL ; ACHENES ; STRESS ; LIGHT
WOS类目	Plant Sciences
WOS研究方向	Plant Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/315351
作者单位	1.Yangzhou Univ, Coll Hort & Plant Protect, Jiangsu Key Lab Crop Genet & Physiol, Yangzhou 225009, Jiangsu, Peoples R China; 2.Middle Tennessee State Univ, Dept Biol, Murfreesboro, TN 37132 USA
推荐引用方式 GB/T 7714	Zhang, Keliang,Zhang, Yin,Ji, Yusong,et al. Seed Biology of Lepidium apetalum (Brassicaceae), with Particular Reference to Dormancy and Mucilage Development[J],2020,9(3).
APA	Zhang, Keliang,Zhang, Yin,Ji, Yusong,Walck, Jeffrey L.,&Tao, Jun.(2020).Seed Biology of Lepidium apetalum (Brassicaceae), with Particular Reference to Dormancy and Mucilage Development.PLANTS-BASEL,9(3).
MLA	Zhang, Keliang,et al."Seed Biology of Lepidium apetalum (Brassicaceae), with Particular Reference to Dormancy and Mucilage Development".PLANTS-BASEL 9.3(2020).