干旱区生态环境知识资源中心(Arid): Bacillus aryabhattai Mitigates the Effects of Salt and Water Stress on the Agronomic Performance of Maize under an Agroecological System

Arid

DOI	10.3390/agriculture13061150
	Bacillus aryabhattai Mitigates the Effects of Salt and Water Stress on the Agronomic Performance of Maize under an Agroecological System
	Sousa, Henderson Castelo; de Sousa, Geocleber Gomes; Viana, Thales Vinicius de Araujo; Pereira, Arthur Prudencio de Araujo; Lessa, Carla Ingryd Nojosa; de Souza, Maria Vanessa Pires; Guilherme, Jose Marcelo da Silva; Goes, Geovana Ferreira; Alves, Francisco Gleyson da Silveira; Gomes, Silas Primola; da Silva, Fred Denilson Barbosa
通讯作者	Sousa, HC
来源期刊	AGRICULTURE-BASEL
EISSN	2077-0472
出版年	2023
卷号	13 期号:6
英文摘要	The use of plant-growth-promoting rhizobacteria (PGPR) can be one option for mitigating the impact of abiotic constraints on different cropping systems in the tropical semi-arid region. Studies suggest that these bacteria have mechanisms to mitigate the effects of water stress and to promote more significant growth in plant species. These mechanisms involve phenotypic changes in growth, water conservation, plant cell protection, and damage restoration through the integration of phytohormone modulation, stress-induced enzyme apparatus, and metabolites. The aim of this study was to evaluate the growth, leaf gas exchange, and yield in maize (Zea mays L.-BRS Caatingueiro) inoculated with Bacillus aryabhattai and subjected to water and salt stress. The experiment followed a randomised block design, in a split-plot arrangement, with six repetitions. The plots comprised two levels of electrical conductivity of the irrigation water (0.3 dS m(-1) and 3.0 dS m(-1)); the subplots consisted of three irrigation depths (50%, 75%, and 100% of the crop evapotranspiration (ETc)); while the sub-subplots included the presence or absence of B. aryabhattai inoculant. A water deficit of 50% of the ETc resulted in the principal negative effects on growth, reducing the leaf area and stem diameter. The use of B. aryabhattai mitigated salt stress and promoted better leaf gas exchange by increasing the CO2 assimilation rate, stomatal conductance, and internal CO2 concentration. However, irrigation with brackish water (3.0 dS m(-1)) reduced the instantaneous water-use efficiency of the maize. Our results showed that inoculation wiht PGPR mitigates the effect of abiotic stress (salt and water) in maize plants, making it an option in regions with a scarcity of low-salinity water.
英文关键词	Zea mays abiotic stress microorganisms salinity water deficit
类型	Article
语种	英语
开放获取类型	Green Submitted, gold
收录类别	SCI-E
WOS记录号	WOS:001016891900001
WOS关键词	PLANT-GROWTH ; GAS-EXCHANGE ; NITROGEN ; EXOPOLYSACCHARIDE ; FERTILIZATION ; RHIZOBACTERIA ; TOLERANCE ; SALINITY ; CORN
WOS类目	Agronomy
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/2XILL650/395153
推荐引用方式 GB/T 7714	Sousa, Henderson Castelo,de Sousa, Geocleber Gomes,Viana, Thales Vinicius de Araujo,et al. Bacillus aryabhattai Mitigates the Effects of Salt and Water Stress on the Agronomic Performance of Maize under an Agroecological System[J],2023,13(6).
APA	Sousa, Henderson Castelo.,de Sousa, Geocleber Gomes.,Viana, Thales Vinicius de Araujo.,Pereira, Arthur Prudencio de Araujo.,Lessa, Carla Ingryd Nojosa.,...&da Silva, Fred Denilson Barbosa.(2023).Bacillus aryabhattai Mitigates the Effects of Salt and Water Stress on the Agronomic Performance of Maize under an Agroecological System.AGRICULTURE-BASEL,13(6).
MLA	Sousa, Henderson Castelo,et al."Bacillus aryabhattai Mitigates the Effects of Salt and Water Stress on the Agronomic Performance of Maize under an Agroecological System".AGRICULTURE-BASEL 13.6(2023).