干旱区生态环境知识资源中心(Arid): Improved salinity and dust stress tolerance in the desert halophyte Haloxylon aphyllum by halotolerant plant growth-promoting rhizobacteria

Arid

DOI	10.3389/fpls.2022.948260
	Improved salinity and dust stress tolerance in the desert halophyte Haloxylon aphyllum by halotolerant plant growth-promoting rhizobacteria
	Najafi Zilaie, Mahmood; Mosleh Arani, Asghar; Etesami, Hassan; Dinarvand, Mehri
通讯作者	Arani, AM
来源期刊	FRONTIERS IN PLANT SCIENCE
ISSN	1664-462X
出版年	2022
卷号	13
英文摘要	Because of global warming, desertification is increasing. One of the best strategies for combating desertification is reforestation of forests and biological operations of vegetation. However, events like soil salinity and dust storms, as the most important manifestations of desertification, prevent vegetation from settling in these areas. In this study, the effects of two halotolerant plant growth-promoting rhizobacterial strains, Bacillus pumilus HR and Zhihengliuella halotolerans SB, on physiological and nutritional status of the desert halophyte Haloxylon aphyllum under the stress of salinity (0, 300, and 600 mM NaCl) and dust (0 and 1.5 g m(-2) month(-1)) were examined. Under dust application, the Z. halotolerans SB strain compared to the B. pumilus HR strain and the combination of these two bacterial strains improved the content of total chlorophyll (247 and 316%), carotenoid (94 and 107%), phosphorus (113 and 209%), magnesium (196 and 212%), and total dry biomass (13 and 28%) in H. aphyllum at salinity levels of 300 and 600 mM NaCl, respectively. Under conditions of combined application of dust and salinity, B. pumilus HR compared to Z. halotolerans SB and the combination of two strains at salinity levels of 300 and 600 mM NaCl, respectively, had better performance in increasing the content of iron (53 and 69%), calcium (38 and 161%), and seedling quality index (95 and 56%) in H. aphyllum. The results also showed that both bacterial strains and their combination were able to reduce the content of ascorbic acid, flavonoid, total phenol, proline, and malondialdehyde, and catalase activity, and ultimately improve the antioxidant capacity of H. aphyllum. This showed that the use of halotolerant rhizobacteria can stop the production of free radicals and thus prevent cell membrane damage and the formation of malondialdehyde under salinity and dust stress. The results of this study for the first time showed that halotolerant rhizobacteria can increase the seedling quality index of H. aphyllum under combined conditions of salinity and dust. The use of these bacteria can be useful in the optimal afforestation of H. aphyllum species in arid and semi-arid ecosystems.
英文关键词	Bacillus pumilus Halostachys belangeriana nutrients PGPR Seidlitzia rosmarinus Zhihengliuella halotolerans
类型	Article
语种	英语
开放获取类型	Green Published, gold
收录类别	SCI-E
WOS记录号	WOS:000841445400001
WOS关键词	1-AMINOCYCLOPROPANE-1-CARBOXYLATE DEAMINASE ; SALT STRESS ; PROLINE ; BACTERIA ; DROUGHT ; L. ; MECHANISMS ; PHOTOSYNTHESIS ; BIOSYNTHESIS ; POLLUTION
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/2XILL650/392848
推荐引用方式 GB/T 7714	Najafi Zilaie, Mahmood,Mosleh Arani, Asghar,Etesami, Hassan,et al. Improved salinity and dust stress tolerance in the desert halophyte Haloxylon aphyllum by halotolerant plant growth-promoting rhizobacteria[J],2022,13.
APA	Najafi Zilaie, Mahmood,Mosleh Arani, Asghar,Etesami, Hassan,&Dinarvand, Mehri.(2022).Improved salinity and dust stress tolerance in the desert halophyte Haloxylon aphyllum by halotolerant plant growth-promoting rhizobacteria.FRONTIERS IN PLANT SCIENCE,13.
MLA	Najafi Zilaie, Mahmood,et al."Improved salinity and dust stress tolerance in the desert halophyte Haloxylon aphyllum by halotolerant plant growth-promoting rhizobacteria".FRONTIERS IN PLANT SCIENCE 13(2022).