Among the saline soil microbial community analysis, phyla Firmicutes showed a higher abundance.
The current study extends knowledge about the microbial communities present in the rhizosphere of the date palms cultivated in saline and non-saline irrigated farms.
It indicates the possible roles of the identified microbial communities to the adaptations of the date palm to salinity stress. They identified microbes that can be used as genes to increase nutrient uptake under saline environments through a genetic transformation in different crop species. The current findings from the date palm saline and non-saline soil microbiomes expand the inventory of soil bacteria for saline environments that can help discover potential inoculants for crops growing on salt- affected land. The potential inoculant from such microbial communities and the desert farming practices can be promising perspectives for sustainable agriculture in arid ecosystems. The identified microbial could be used as inoculants to enhance soil fertility in organic farming practices under saline environments.
However, to exploit the potential applications of saline soil date palm microbial communities, the future perspectives of the current study will be on certain aspects:
The present study will be further developed with a focus on a complete description of the metagenome of the date palm saline environments that will report the metabolic pathways of the identified microbial communities with an understanding of how these microbial communities remain active and recover during the salinity stress.
The taxonomic and functional microbial community profiling will continue the current investigation to elucidate functional traits enabling the proliferation of the identified microbial communities under salt stress.
The study will elaborate on analyzing the potential of PGPR or ACC gene activity of the phyla Micromonospora, Pseudomonas, and Mycobacterium found in the saline soils of date palms.
Another future perspective will be the investigation of the identified rhizosphere microbial community's incorporation as a factor in determining desirable traits in date palms, such as yield or salt tolerance.
Future studies will focus on assessing the interaction of date palm genotype with the rhizosphere microbiome and its effect in shaping host phenotype, specifically the roots.
The research perspectives on the rhizosphere of the date palm indicate the achievement of the vast potential of rhizosphere microbial communities for remediating salinity-stressed agro-ecosystems, and the utilization of this green biotechnology will have multiple positive effects on the expected climatic changes.
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