干旱区生态环境知识资源中心(Arid): Soil parameters drive the diversity of Citrus sinensis rhizosphere microbiota which exhibits a potential in plant drought stress alleviation

Arid

DOI	10.1016/j.apsoil.2018.12.006
	Soil parameters drive the diversity of Citrus sinensis rhizosphere microbiota which exhibits a potential in plant drought stress alleviation
	Cherni, Marwa 1; Ferjani, Raoudha 1; Mapelli, Francesca 2; Boudabous, Abdellatif 1; Borin, Sara 2; Ouzari, Hadda-Imene 1
通讯作者	Ouzari, Hadda-Imene
来源期刊	APPLIED SOIL ECOLOGY
ISSN	0929-1393
EISSN	1873-0272
出版年	2019
卷号	135 页码:182-193
英文摘要	Plant associated microorganisms, particularly those exhibiting a plant growth promoting (PGP) effect, play an important role in plant nutrition and health and the adaptation to unfavorable climatic conditions, such as drought which threatens the productivity of agricultural crops. The selection of specific microbial populations in the soil habitats associated to plants depends upon the soil physico-chemical parameters besides the 'rhizosphere effect' played by each plant species through rhizodepositions. In this study, we investigated the community structure and PGP potential of the microbiota associated to Citrus sinensis plants located in different geographical regions of Tunisia. The bacteria community structure was correlated to soil physiochemical parameters and we identified potassium, carbon and organic matter content as drivers of the C. sinensis microbiota composition. The evaluation of the potential of selected bacteria as biofertilizer and bio-stimulator under drought stress was achieved through the phylogenetic and functional characterization of a large collection of bacterial strains isolated from the rhizosphere of C. sinensis. The strains were screened in vitro for putative plant growth promoting traits, and the six most promising isolates were tested in vivo on Solanum lycopersicum and Capsicum annuum model plants. The bacterized plants were cultivated under drought stress and compared with not bacterized and fully irrigated control plants. All the tested bacteria induced a significant increase in the number of leaves and in root biomass of both plant species compared to not inoculated plants. Our results highlighted that the strains Ensifer adhaerens S1B1.5 and Pseudomonas resinovorans S4R2.6 were, in particular, effective in promoting plant growth under water shortage, indicating them as promising strains for the development of sustainable biofertilizers suited for agriculture in arid and semi-arid regions characterized by water scarcity.
英文关键词	Citrus sinensis Soil parameters Bacterial community Plant Growth Promotion Drought stress
类型	Article
语种	英语
国家	Tunisia ; Italy
收录类别	SCI-E
WOS记录号	WOS:000454992300023
WOS关键词	GROWTH-PROMOTING RHIZOBACTERIA ; BACTERIAL COMMUNITY STRUCTURE ; GRADIENT GEL-ELECTROPHORESIS ; ACC DEAMINASE ; WATER-STRESS ; SP NOV. ; GENES ; POPULATIONS ; TOLERANCE ; ACID
WOS类目	Soil Science
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/2XILL650/214269
作者单位	1.Univ Tunis El Manar, Fac Sci Tunis, LRO3ES03 Lab Microorganismes & Biomol Act, Tunis 2092, Tunisia; 2.Univ Milan, Dept Food Environm & Nutr Sci, Via Celoria 2, I-20133 Milan, Italy
推荐引用方式 GB/T 7714	Cherni, Marwa,Ferjani, Raoudha,Mapelli, Francesca,et al. Soil parameters drive the diversity of Citrus sinensis rhizosphere microbiota which exhibits a potential in plant drought stress alleviation[J],2019,135:182-193.
APA	Cherni, Marwa,Ferjani, Raoudha,Mapelli, Francesca,Boudabous, Abdellatif,Borin, Sara,&Ouzari, Hadda-Imene.(2019).Soil parameters drive the diversity of Citrus sinensis rhizosphere microbiota which exhibits a potential in plant drought stress alleviation.APPLIED SOIL ECOLOGY,135,182-193.
MLA	Cherni, Marwa,et al."Soil parameters drive the diversity of Citrus sinensis rhizosphere microbiota which exhibits a potential in plant drought stress alleviation".APPLIED SOIL ECOLOGY 135(2019):182-193.