干旱区生态环境知识资源中心(Arid): Bacterial Endophytes from Legumes Native to Arid Environments Are Promising Tools to Improve Mesorhizobium-Chickpea Symbiosis under Salinity

Arid

DOI	10.3390/biology13020096
	Bacterial Endophytes from Legumes Native to Arid Environments Are Promising Tools to Improve Mesorhizobium-Chickpea Symbiosis under Salinity
	Ben Gaied, Roukaya; Sbissi, Imed; Tarhouni, Mohamed; Brigido, Clarisse
通讯作者	Brígido, C
来源期刊	BIOLOGY-BASEL
EISSN	2079-7737
出版年	2024
卷号	13 期号:2
英文摘要	Symbiotic nitrogen fixation is a major contributor of N in agricultural ecosystems, but the establishment of legume-rhizobium symbiosis is highly affected by soil salinity. Our interest is focused on the use of non-rhizobial endophytes to assist the symbiosis between chickpea and its microsymbiont under salinity to avoid loss of production and fertility. Our aims were (1) to investigate the impact of salinity on both symbiotic partners; including on early events of the Mesorhizobium-chickpea symbiosis, and (2) to evaluate the potential of four non-rhizobial endophytes isolated from legumes native to arid regions (Phyllobacterium salinisoli, P. ifriqiyense, Xanthomonas translucens, and Cupriavidus respiraculi) to promote chickpea growth and nodulation under salinity. Our results show a significant reduction in chickpea seed germination rate and in the microsymbiont Mesorhizobium ciceri LMS-1 growth under different levels of salinity. The composition of phenolic compounds in chickpea root exudates significantly changed when the plants were subjected to salinity, which in turn affected the nod genes expression in LMS-1. Furthermore, the LMS-1 response to root exudate stimuli was suppressed by the presence of salinity (250 mM NaCl). On the contrary, a significant upregulation of exoY and otsA genes, which are involved in exopolysaccharide and trehalose biosynthesis, respectively, was registered in salt-stressed LMS-1 cells. In addition, chickpea co-inoculation with LMS-1 along with the consortium containing two non-rhizobial bacterial endophytes, P. salinisoli and X. translucens, resulted in significant improvement of the chickpea growth and the symbiotic performance of LMS-1 under salinity. These results indicate that this non-rhizobial endophytic consortium may be an appropriate ecological and safe tool to improve chickpea growth and its adaptation to salt-degraded soils.
英文关键词	abiotic stress root exudates salt-stress endophytic bacteria grain legume inoculants
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:001176961100001
WOS关键词	CICER-ARIETINUM L. ; SALT STRESS ; NODULATION GENES ; ROOT-NODULES ; GROWTH ; RHIZOBIUM ; NITROGEN ; EXPRESSION ; PLANTS ; FLAVONOIDS
WOS类目	Biology
WOS研究方向	Life Sciences & Biomedicine - Other Topics
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/403027
推荐引用方式 GB/T 7714	Ben Gaied, Roukaya,Sbissi, Imed,Tarhouni, Mohamed,et al. Bacterial Endophytes from Legumes Native to Arid Environments Are Promising Tools to Improve Mesorhizobium-Chickpea Symbiosis under Salinity[J],2024,13(2).
APA	Ben Gaied, Roukaya,Sbissi, Imed,Tarhouni, Mohamed,&Brigido, Clarisse.(2024).Bacterial Endophytes from Legumes Native to Arid Environments Are Promising Tools to Improve Mesorhizobium-Chickpea Symbiosis under Salinity.BIOLOGY-BASEL,13(2).
MLA	Ben Gaied, Roukaya,et al."Bacterial Endophytes from Legumes Native to Arid Environments Are Promising Tools to Improve Mesorhizobium-Chickpea Symbiosis under Salinity".BIOLOGY-BASEL 13.2(2024).