干旱区生态环境知识资源中心(Arid): The Role of Plant Growth-Promoting Bacteria in Alleviating the Adverse Effects of Drought on Plants

Arid

DOI	10.3390/biology10060520
	The Role of Plant Growth-Promoting Bacteria in Alleviating the Adverse Effects of Drought on Plants
	Abdelaal, Khaled; AlKahtani, Muneera; Attia, Kotb; Hafez, Yaser; Kiraly, Lorant; Kunstler, Andras
通讯作者	Abdelaal, K (corresponding author), Kafrelsheikh Univ, Fac Agr, Excellence Ctr EPCRS, Plant Pathol & Biotechnol Lab, Kafr Al Sheikh 33516, Egypt.
来源期刊	BIOLOGY-BASEL
EISSN	2079-7737
出版年	2021
卷号	10 期号:6
英文摘要	Simple Summary Among abiotic stress factors, drought is one of the most detrimental factors in arid and semiarid regions, causing a significant decrease in plant growth and yield in most species, including crops. Under drought conditions, morphological, physiological and biochemical characteristics such as plant height and enzymatic activities are negatively affected. This negative effect may be alleviated with the aid of plant growth-promoting bacteria. Application of plant growth-promoting bacteria such as Paenibacillus, Azospirillum, Rhizobium, Bacillus, Azotobacter, Klebsiella, Pseudomonas and Serratia can enhance hormonal balance, maintain nutrient status and improve plant growth characters as well as increase yield. This review discusses the pivotal role of plant growth-promoting bacteria in mitigating drought stress by improving plant growth characters and yield. Plant growth-promoting bacteria play an essential role in enhancing the physical, chemical and biological characters of soils by facilitating nutrient uptake and water flow, especially under abiotic stress conditions, which are major constrains to agricultural development and production. Drought is one of the most harmful abiotic stress and perhaps the most severe problem facing agricultural sustainability, leading to a severe shortage in crop productivity. Drought affects plant growth by causing hormonal and membrane stability perturbations, nutrient imbalance and physiological disorders. Furthermore, drought causes a remarkable decrease in leaf numbers, relative water content, sugar yield, root yield, chlorophyll a and b and ascorbic acid concentrations. However, the concentrations of total phenolic compounds, electrolyte leakage, lipid peroxidation, amounts of proline, and reactive oxygen species are considerably increased because of drought stress. This negative impact of drought can be eliminated by using plant growth-promoting bacteria (PGPB). Under drought conditions, application of PGPB can improve plant growth by adjusting hormonal balance, maintaining nutrient status and producing plant growth regulators. This role of PGPB positively affects physiological and biochemical characteristics, resulting in increased leaf numbers, sugar yield, relative water content, amounts of photosynthetic pigments and ascorbic acid. Conversely, lipid peroxidation, electrolyte leakage and amounts of proline, total phenolic compounds and reactive oxygen species are decreased under drought in the presence of PGPB. The current review gives an overview on the impact of drought on plants and the pivotal role of PGPB in mitigating the negative effects of drought by enhancing antioxidant defense systems and increasing plant growth and yield to improve sustainable agriculture.
英文关键词	plant growth-promoting bacteria drought antioxidant enzymes chlorophylls phenols
类型	Review
语种	英语
开放获取类型	Green Published, gold
收录类别	SCI-E
WOS记录号	WOS:000666781400001
WOS关键词	TRITICUM-AESTIVUM L. ; ABIOTIC STRESS TOLERANCE ; NET BLOTCH DISEASE ; WATER-DEFICIT STRESS ; BRASSICA-NAPUS-L. ; SALICYLIC-ACID ; ACC-DEAMINASE ; SALT TOLERANCE ; RHIZOBACTERIA PGPR ; YIELD CHARACTERS
WOS类目	Biology
WOS研究方向	Life Sciences & Biomedicine - Other Topics
来源机构	King Saud University
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/368724
作者单位	[Abdelaal, Khaled; Hafez, Yaser] Kafrelsheikh Univ, Fac Agr, Excellence Ctr EPCRS, Plant Pathol & Biotechnol Lab, Kafr Al Sheikh 33516, Egypt; [AlKahtani, Muneera] Princess Nourah Bint Abdulrahman Univ, Coll Sci, Biol Dept, Riyadh 11564, Saudi Arabia; [Attia, Kotb] King Saud Univ, Ctr Excellence Biotechnol Res, Riyadh 11451, Saudi Arabia; [Kiraly, Lorant; Kunstler, Andras] ELKH, Plant Protect Inst, Ctr Agr Res, 15 Herman Otto Str, H-1022 Budapest, Hungary
推荐引用方式 GB/T 7714	Abdelaal, Khaled,AlKahtani, Muneera,Attia, Kotb,et al. The Role of Plant Growth-Promoting Bacteria in Alleviating the Adverse Effects of Drought on Plants[J]. King Saud University,2021,10(6).
APA	Abdelaal, Khaled,AlKahtani, Muneera,Attia, Kotb,Hafez, Yaser,Kiraly, Lorant,&Kunstler, Andras.(2021).The Role of Plant Growth-Promoting Bacteria in Alleviating the Adverse Effects of Drought on Plants.BIOLOGY-BASEL,10(6).
MLA	Abdelaal, Khaled,et al."The Role of Plant Growth-Promoting Bacteria in Alleviating the Adverse Effects of Drought on Plants".BIOLOGY-BASEL 10.6(2021).