干旱区生态环境知识资源中心(Arid): Rhizobacteria Bacillus spp. enhance growth, influence root architecture, physiological attributes and canopy temperature of mustard under thermal stress

Arid

DOI	10.1016/j.scienta.2023.112052
	Rhizobacteria Bacillus spp. enhance growth, influence root architecture, physiological attributes and canopy temperature of mustard under thermal stress
	Kiruthika, A.; Vikram, K. V.; Nivetha, Nagarajan; Asha, A. D.; Chinnusamy, Viswanathan; Singh, Bhupinder; Kumar, Sudhir; Talukdar, Akshay; Krishnan, Prameela; Paul, Sangeeta
通讯作者	Paul, S
来源期刊	SCIENTIA HORTICULTURAE
ISSN	0304-4238
EISSN	1879-1018
出版年	2023
卷号	318
英文摘要	In arid and semi-arid regions, high temperature stress is one of the most common abiotic stresses affecting plant growth and development, as well as agricultural output. Growth and establishment of mustard, an important oilseed crop, is affected due to increased incidences of higher-than-normal temperatures during sowing of the crop. In the present study, we screened rhizobacterial isolates for their thermotolerance. Under high temperature stress, three thermotolerant rhizobacterial cultures were assessed for their plant growth promoting activities. There was beneficial effect of high temperature on their indole acetic acid and gibberellic acid production abilities. A pot experiment was conducted to evaluate the effect of the three rhizobacterial strains on mustard growth under high temperature stress. Inoculation with the rhizobacteria significantly improved plant biomass, root architecture and physiological attributes - relative water content, membrane stability index and chlorophyll content. There were lowering of hydrogen peroxide content and lipid peroxidation. Increased total leaf area and lowering of canopy temperature was observed in the inoculated plants, under high temperature. Significant positive correlation was observed between plant biometric traits and most of the physiological attributes, while negative correlation was observed with lipid peroxidation and hydrogen peroxide content. Under both no stress and high temperature stress, response to inoculation with Bacillus sp. strain MRD-17 was markedly more than the other rhizobacterial strains. Thus, these rhizobacteria were able to enhance thermotolerance of mustard during early stages of growth. As a result, thermotolerant rhizobacteria with plant growth-promoting activity can be utilized to alleviate high temperature stress in crops.
英文关键词	Canopy temperature High temperature stress Mustard Rhizobacteria Root architecture Thermotolerance
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000986589200001
WOS关键词	HEAT-STRESS ; PROMOTING RHIZOBACTERIA ; TOLERANCE ; WHEAT ; DROUGHT ; DEPRESSION
WOS类目	Horticulture
WOS研究方向	Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/398578
推荐引用方式 GB/T 7714	Kiruthika, A.,Vikram, K. V.,Nivetha, Nagarajan,et al. Rhizobacteria Bacillus spp. enhance growth, influence root architecture, physiological attributes and canopy temperature of mustard under thermal stress[J],2023,318.
APA	Kiruthika, A..,Vikram, K. V..,Nivetha, Nagarajan.,Asha, A. D..,Chinnusamy, Viswanathan.,...&Paul, Sangeeta.(2023).Rhizobacteria Bacillus spp. enhance growth, influence root architecture, physiological attributes and canopy temperature of mustard under thermal stress.SCIENTIA HORTICULTURAE,318.
MLA	Kiruthika, A.,et al."Rhizobacteria Bacillus spp. enhance growth, influence root architecture, physiological attributes and canopy temperature of mustard under thermal stress".SCIENTIA HORTICULTURAE 318(2023).