干旱区生态环境知识资源中心(Arid): Adaptive drought tolerance during germination of Salsola drummondii seeds from saline and nonsaline habitats of the arid Arabian deserts

Arid

DOI	10.1139/cjb-2018-0174
	Adaptive drought tolerance during germination of Salsola drummondii seeds from saline and nonsaline habitats of the arid Arabian deserts
	Elnaggar, Attiat 1,2,3; El-Keblawy, Ali 1,5; Mosa, Kareem A.1,4; Navarro, Teresa 2
通讯作者	El-Keblawy, Ali
来源期刊	BOTANY
ISSN	1916-2790
EISSN	1916-2804
出版年	2019
卷号	97 期号:2 页码:123-133
英文摘要	The effects of temperature, light, salinity, and drought on germination of halophytes have been extensively studied. However, few studies have focused on the germination of plants that grow well in both saline and nonsaline habitats (i.e., habitat-indifferent halophytes). Here, we assess the impacts of population origin, temperature, and light on drought tolerance, as simulated with polyethylene glycol (PEG), during germination of Salsola drummondii Ulbr., a habitat-indifferent halophyte from the arid Arabian deserts. Seeds were collected from both saline and nonsaline habitats and germinated at six concentrations of PEG at three temperatures and two light regimes. An increase in the concentration of PEG resulted in a significant reduction in seed germination, especially at higher temperatures. Seeds from the nonsaline habitat attained significantly greater germination efficiency at concentrations of PEG up to -1.2 MPa, but there was no difference in germination of seeds between the two habitats at concentrations of -1.5 MPa. Seeds from the saline habitat germinated significantly faster at higher concentrations of PEG. Germination was significantly higher in darkness than in light at -1.5 MPa at the lower temperatures, but the opposite was true for the higher temperatures. Seeds from saline habitats had higher levels of dormancy and faster rates of germination at higher concentrations of PEG because of their adaptation to low osmotic potentials.
英文关键词	drought tolerance germination requirement maternal salinity polyethylene glycol seed dormancy
类型	Article
语种	英语
国家	U Arab Emirates ; Spain ; Egypt
开放获取类型	Green Accepted, Bronze
收录类别	SCI-E
WOS记录号	WOS:000457458800003
WOS关键词	SALT TOLERANCE ; TRANSGENERATIONAL PLASTICITY ; TEMPERATURE REQUIREMENTS ; MATERNAL SALINITY ; CLIMATE-CHANGE ; STRESS ; LIGHT ; HALOPHYTE ; PHYSIOLOGY ; RESPONSES
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/2XILL650/214728
作者单位	1.Univ Sharjah, Fac Sci, Dept Appl Biol, POB 27272, Sharjah, U Arab Emirates; 2.Univ Malaga, Dept Biol Vegetal, POB 59, Malaga 29080, Spain; 3.Alexandria Univ, Fac Sci, Dept Bot & Microbiol, Alexandria, Egypt; 4.Al Azhar Univ, Fac Agr, Dept Biotechnol, Cairo, Egypt; 5.Al Arish Univ, Fac Sci, Dept Biol, Arish, Egypt
推荐引用方式 GB/T 7714	Elnaggar, Attiat,El-Keblawy, Ali,Mosa, Kareem A.,et al. Adaptive drought tolerance during germination of Salsola drummondii seeds from saline and nonsaline habitats of the arid Arabian deserts[J],2019,97(2):123-133.
APA	Elnaggar, Attiat,El-Keblawy, Ali,Mosa, Kareem A.,&Navarro, Teresa.(2019).Adaptive drought tolerance during germination of Salsola drummondii seeds from saline and nonsaline habitats of the arid Arabian deserts.BOTANY,97(2),123-133.
MLA	Elnaggar, Attiat,et al."Adaptive drought tolerance during germination of Salsola drummondii seeds from saline and nonsaline habitats of the arid Arabian deserts".BOTANY 97.2(2019):123-133.