干旱区生态环境知识资源中心(Arid): Eco-physiological responses of desert and riverain legume plant species to extreme environmental stress

Arid

DOI	10.1016/j.bcab.2020.101531
	Eco-physiological responses of desert and riverain legume plant species to extreme environmental stress
	Ahmed, Zainab G.; Radwan, Usama; El-Sayed, Magdi A.
通讯作者	El-Sayed, MA
来源期刊	BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY
EISSN	1878-8181
出版年	2020
卷号	24
英文摘要	Drought and heat events frequency and severity are expected to increase in the near future as responses to global warming, influencing crops productivity and human diet as result in the increasing soil aridity and area affected by drought. It is becoming increasingly important to find new crop plants or genotypes of crops that have adaptation strategies to water loss at extreme arid conditions. It was hypothesized that growth and development of plants are affected differently by drought stress, depending on their nature habitats whether desert or riverain. In this current research, we compared the changes in physiological behavior between desert and riverain legume plants, as response to drought stress at two levels of water regimes. Rates of transpiration were highly correlated to radiation. Transpiration increases with the increase in photosynthetic active radiation (PAR) at both levels of water regimes. Highest photosynthesis (pn) and transpiration (E) were achieved in R. minima at both low water regime and high PAR (1250). The super oxide dismutase (SOD), catalase (CAT), phenyl ammonia lyase (PAL) and peroxidase activities were higher in Rhynchosia minima. Drought stress induced significant accumulation of total sugars, flavonoids, saponins, proteins and phenolics. The higher photosynthesis rate, higher flavonoids and phenolics content and stronger activity of protective enzymes were the important physiological reasons for the drought resistance of Rhynchosia minima.
英文关键词	Drought stress Photosynthesis R. minima Lablab purpureus Antioxidant enzymes Transpiration Chlorophyll fluorescence
类型	Article
语种	英语
收录类别	ESCI
WOS记录号	WOS:000529361100044
WOS关键词	CHLOROPHYLL FLUORESCENCE PARAMETERS ; WATER-USE EFFICIENCY ; DROUGHT-STRESS ; PHOTOSYNTHESIS ; TRANSPIRATION ; METABOLISM ; DEFICITS ; L.
WOS类目	Biotechnology & Applied Microbiology
WOS研究方向	Biotechnology & Applied Microbiology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/334325
作者单位	[Ahmed, Zainab G.; Radwan, Usama; El-Sayed, Magdi A.] Aswan Univ, Fac Sci, Bot Dept, Aswan 81528 M, Egypt; [El-Sayed, Magdi A.] Aswan Univ, Unit Environm Studies & Dev, Aswan 81528, Egypt
推荐引用方式 GB/T 7714	Ahmed, Zainab G.,Radwan, Usama,El-Sayed, Magdi A.. Eco-physiological responses of desert and riverain legume plant species to extreme environmental stress[J],2020,24.
APA	Ahmed, Zainab G.,Radwan, Usama,&El-Sayed, Magdi A..(2020).Eco-physiological responses of desert and riverain legume plant species to extreme environmental stress.BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY,24.
MLA	Ahmed, Zainab G.,et al."Eco-physiological responses of desert and riverain legume plant species to extreme environmental stress".BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 24(2020).