干旱区生态环境知识资源中心(Arid): Evaluating germinability of eight desert halophytes under long-term seed storage: Implications for conservation

Arid

	Evaluating germinability of eight desert halophytes under long-term seed storage: Implications for conservation
	Gairola Sanjay; Shabana Hatem A; Mahmoud Tamer; El-Keblawy Ali; Santo Andrea
来源期刊	Plant Diversity
ISSN	2096-2703
出版年	2019
卷号	41 期号:4 页码:229-236
英文摘要	Ex situ conservation in seed banks is a potential complementary conservation strategy for native plant species. It is well established that ex situ seed banking of native wild plants prolongs seed viability and thereby preserves genetic and species diversity for future use. We evaluated ex situ storage potential of eight halophytic species from deserts in the United Arab Emirates (UAE) by studying seed germination. Specifically, we examined the germinability of freshly collected seeds and seeds stored for three years in a seed bank. We also examined the effect of light conditions on fresh and stored seed germination. Fresh seeds of seven of the eight species tested had a higher germination rates under 12/12 h light/dark fluctuations than did those exposed to total darkness. Storage reduced light sensitivity in Halocnemum strobilaceum, Suaeda aegyptiaca, Salsola drummondii and Salsola imbricata, but increased the requirement for light in Arthrocnemum macrostachyum. In Anabasis setifera, storage decreased germination percentage when there was a 12-hour light/dark fluctuation, but increased germination rate when exposed to the dark treatment. Storage significantly reduced germination in both the light/dark and dark treatments in Suaeda vermiculata and S. aegyptiaca. Germination speed also responded differently to storage; whereas Timson's index significantly increased in A. macrostachyum and H. strobilaceum, it significantly decreased for S. drummondii, S. aegyptiaca and S. vermiculata. Germination of these species at a range of temperatures requires further testing; additionally, we strongly suggest that these laboratory findings be complemented by field studies.
英文关键词	Ex situ conservation Halophytes Seed bank collection Seed germination Salt tolerance SSBH
类型	Article
语种	英语
开放获取类型	DOAJ Gold, Green Published
收录类别	CSCD
WOS研究方向	Life Sciences & Biomedicine - Other Topics
CSCD记录号	CSCD:6585348
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/336186
作者单位	Gairola Sanjay, Sharjah Seed Bank and Herbarium, Sharjah Research Academy, Sharjah, United Arab Emirates.; Shabana Hatem A, Sharjah Seed Bank and Herbarium, Sharjah Research Academy, Sharjah, United Arab Emirates.; Mahmoud Tamer, Sharjah Seed Bank and Herbarium, Sharjah Research Academy, Sharjah, United Arab Emirates.; El-Keblawy Ali, Department of Applied Biology, College of Sciences, University of Sharjah, Sharjah, United Arab Emirates.; Santo Andrea, Independent Researcher, Cagliari, Sardinia Italy.
推荐引用方式 GB/T 7714	Gairola Sanjay,Shabana Hatem A,Mahmoud Tamer,et al. Evaluating germinability of eight desert halophytes under long-term seed storage: Implications for conservation[J],2019,41(4):229-236.
APA	Gairola Sanjay,Shabana Hatem A,Mahmoud Tamer,El-Keblawy Ali,&Santo Andrea.(2019).Evaluating germinability of eight desert halophytes under long-term seed storage: Implications for conservation.Plant Diversity,41(4),229-236.
MLA	Gairola Sanjay,et al."Evaluating germinability of eight desert halophytes under long-term seed storage: Implications for conservation".Plant Diversity 41.4(2019):229-236.