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DOI	10.4014/jmb.2003.03034
	A Bioactive Fraction from Streptomyces sp. Enhances Maize Tolerance against Drought Stress
	Warrad, Mona; Hassan, Yasser M.; Mohamed, Mahmoud S. M.; Hagagy, Nashwa; Al-Maghrabi, Omar A.; Selim, Samy; Saleh, Ahmed M.; AbdElgawad, Hamada
通讯作者	Warrad, M
来源期刊	JOURNAL OF MICROBIOLOGY AND BIOTECHNOLOGY
ISSN	1017-7825
EISSN	1738-8872
出版年	2020
卷号	30 期号:8 页码:1156-1168
英文摘要	Drought stress is threatening the growth and productivity of many economical crops. Therefore, it is necessary to establish innovative and efficient approaches for improving crop growth and productivity. Here we investigated the potentials of the cell-free extract of Actinobacteria (Ac) isolated from a semi-arid habitat (Al-Jouf region, Saudi Arabia) to recover the reduction in maize growth and improve the physiological stress tolerance induced by drought. Three Ac isolates were screened for production of secondary metabolites, antioxidant and antimicrobial activities. The isolate Ac3 revealed the highest levels of flavonoids, antioxidant and antimicrobial activities in addition to having abilities to produce siderophores and phytohormones. Based on seed germination experiment, the selected bioactive fraction of Ac3 cell-free extract (F2.7, containing mainly isoquercetin), increased the growth and photosynthesis rate under drought stress. Moreover, F2.7 application significantly alleviated drought stress-induced increases in H2O2, lipid peroxidation (MDA) and protein oxidation (protein carbonyls). It also increased total antioxidant power and molecular antioxidant levels (total ascorbate, glutathione and tocopherols). F2.7 improved the primary metabolism of stressed maize plants; for example, it increased in several individuals of soluble carbohydrates, organic acids, amino acids, and fatty acids. Interestingly, to reduce stress impact, F2.7 accumulated some compatible solutes including total soluble sugars, sucrose and proline. Hence, this comprehensive assessment recommends the potentials of actinobacterial cell-free extract as an alternative ecofriendly approach to improve crop growth and quality under water deficit conditions.
英文关键词	Actinobacteria cell-free extract drought stress Streptomyces osmoregulation
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000577538800007
WOS关键词	WHEAT TRITICUM-AESTIVUM ; GROWTH-PROMOTING RHIZOBACTERIA ; PLANT-GROWTH ; POTENTIAL ROLE ; L. ; ACID ; METABOLISM ; CULTIVARS ; QUALITY ; SOIL
WOS类目	Biotechnology & Applied Microbiology ; Microbiology
WOS研究方向	Biotechnology & Applied Microbiology ; Microbiology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/326767
作者单位	[Warrad, Mona] Jouf Univ, Coll Appl Med Sci, Dept Clin Lab Sci, Al Qurayyat 2014, Saudi Arabia; [Hassan, Yasser M.; AbdElgawad, Hamada] Beni Suef Univ, Fac Sci, Dept Bot & Microbiol, Bani Suwayf 62521, Egypt; [Mohamed, Mahmoud S. M.] Cairo Univ, Fac Sci, Dept Bot & Microbiol, Giza 12613, Egypt; [Hagagy, Nashwa] Univ Jeddah, Coll Sci & Arts Khulis, Dept Biol, Jeddah 21959, Saudi Arabia; [Al-Maghrabi, Omar A.] Univ Jeddah, Coll Sci, Dept Biol, Jeddah 21959, Saudi Arabia; [Selim, Samy] Jouf Univ, Coll Appl Med Sci, Dept Clin Lab Sci, PO 2014, Sakaka, Saudi Arabia; [Hagagy, Nashwa; Selim, Samy] Suez Canal Univ, Fac Sci, Bot Dept, Ismailia 41522, Egypt; [Saleh, Ahmed M.] Taibah Univ, Fac Sci Yanbu, Biol Dept, King Khalid Rd, Al Amoedi 46423, Yanbu El Bahr, Saudi Arabia
推荐引用方式 GB/T 7714	Warrad, Mona,Hassan, Yasser M.,Mohamed, Mahmoud S. M.,et al. A Bioactive Fraction from Streptomyces sp. Enhances Maize Tolerance against Drought Stress[J],2020,30(8):1156-1168.
APA	Warrad, Mona.,Hassan, Yasser M..,Mohamed, Mahmoud S. M..,Hagagy, Nashwa.,Al-Maghrabi, Omar A..,...&AbdElgawad, Hamada.(2020).A Bioactive Fraction from Streptomyces sp. Enhances Maize Tolerance against Drought Stress.JOURNAL OF MICROBIOLOGY AND BIOTECHNOLOGY,30(8),1156-1168.
MLA	Warrad, Mona,et al."A Bioactive Fraction from Streptomyces sp. Enhances Maize Tolerance against Drought Stress".JOURNAL OF MICROBIOLOGY AND BIOTECHNOLOGY 30.8(2020):1156-1168.