干旱区生态环境知识资源中心(Arid): Exogenous application of beta-sitosterol mediated growth and yield improvement in water-stressed wheat (Triticum aestivum) involves up-regulated antioxidant system

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DOI	10.1007/s10265-019-01143-5
	Exogenous application of beta-sitosterol mediated growth and yield improvement in water-stressed wheat (Triticum aestivum) involves up-regulated antioxidant system
	Elkeilsh, Amr 1; Awad, Yasser M.2; Soliman, Mona H.3,4; Abu-Elsaoud, Abdelghafar 1; Abdelhamid, Magdi T.5; El-Metwally, Ibrahim M.5
通讯作者	Soliman, Mona H.
来源期刊	JOURNAL OF PLANT RESEARCH
ISSN	0918-9440
EISSN	1618-0860
出版年	2019
卷号	132 期号:6 页码:881-901
英文摘要	Water stress reduces crop production significantly, and climate change has further aggravated the problem mainly in arid and semi-arid regions. This was the first study on the possible effects of beta-sitosterol application in ameliorating the deleterious changes in wheat induced by water stress under field condition and drip irrigation regimes. A field experiment with the split-plot design was conducted, and wheat plants were foliar sprayed with four beta-sitosterol (BBS) concentrations (0, 25, 75, and 100 mg L-1) and two irrigation regimes [50 and 100% of crop evapotranspiration (ETc)]. Water stress without BBS treatment reduced biological yield, grain yield, harvest index, and photosynthetic efficiency significantly by 28.9%, 42.8%, 19.6%, and 20.5% compared with the well-watered plants, respectively. Proline content increased in water-stressed and BSS-treated plants, owing to a significant role in cellular osmotic adjustment. Application of BSS was effective in reducing the generation of hydrogen peroxide (H2O2) and hence the malondialdehyde content significantly in water-stressed and well-watered wheat plants. Application of BSS up-regulated the activity of antioxidant enzymes (SOD, CAT, POD, and APX) significantly and increased the content of tocopherol, ascorbic acid, and carotene thereby reducing the levels of reactive oxygen species. The increased antioxidant system in BSS treated plants was further supported by the expression level of SOD and dehydrin genes in both water-stressed and well-watered plants. In the present study, the application of BBS at 100 mg L-1 was beneficial and can be recommended for improving the growth and yield of the wheat crop under water stress.
英文关键词	Brassinosteroid Drought Wheat Oxidative stress Superoxide dismutase Dehydrin genes
类型	Article
语种	英语
国家	Egypt ; Saudi Arabia
收录类别	SCI-E
WOS记录号	WOS:000492220200001
WOS关键词	ZEA-MAYS L. ; INDUCED OXIDATIVE STRESS ; DROUGHT STRESS ; FOOD SECURITY ; ABSCISIC-ACID ; HEAT-STRESS ; PHOTOSYNTHETIC CHARACTERISTICS ; STOMATAL CONDUCTANCE ; LIPID-PEROXIDATION ; CANOPY TEMPERATURE
WOS类目	Plant Sciences
WOS研究方向	Plant Sciences
EI主题词	2019-10-12
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/310277
作者单位	1.Suez Canal Univ, Dept Bot, Fac Sci, Ismailia 41522, Egypt; 2.Suez Canal Univ, Dept Agr Bot, Fac Agr, Ismailia 41522, Egypt; 3.Taibah Univ, Dept Biol, Fac Sci, Yanbu, Saudi Arabia; 4.Cairo Univ, Dept Bot & Microbiol, Fac Sci, Giza 12613, Egypt; 5.Natl Res Ctr, Dept Bot, 33 Al Behoos St, Cairo, Egypt
推荐引用方式 GB/T 7714	Elkeilsh, Amr,Awad, Yasser M.,Soliman, Mona H.,et al. Exogenous application of beta-sitosterol mediated growth and yield improvement in water-stressed wheat (Triticum aestivum) involves up-regulated antioxidant system[J],2019,132(6):881-901.
APA	Elkeilsh, Amr,Awad, Yasser M.,Soliman, Mona H.,Abu-Elsaoud, Abdelghafar,Abdelhamid, Magdi T.,&El-Metwally, Ibrahim M..(2019).Exogenous application of beta-sitosterol mediated growth and yield improvement in water-stressed wheat (Triticum aestivum) involves up-regulated antioxidant system.JOURNAL OF PLANT RESEARCH,132(6),881-901.
MLA	Elkeilsh, Amr,et al."Exogenous application of beta-sitosterol mediated growth and yield improvement in water-stressed wheat (Triticum aestivum) involves up-regulated antioxidant system".JOURNAL OF PLANT RESEARCH 132.6(2019):881-901.