Metagenomic Analysis of Bacterial Community Associated with Rhizosphere and Phyllosphere of Basmati Rice

BioRxiv : the Preprint Server for Biology
m. rasulM. S. Mirza

Abstract

Rice is one of the most important crops for feeding about more than half of the world's population. Yield of rice crop is significantly hampered by various biotic and abiotic factors. Application of cost-effective and environment-friendly bioinoculant is a common practice to combat the yield losses of rice in this era. The rhizosphere and phyllosphere of rice plants provide specific habitats for various micro-organisms. In the present study, the bacterial population dwelling the rhizosphere and phyllosphere of Basmati rice were explored using metagenomic approach from rice growing areas of Punjab, Pakistan. The bacterial communities associated with the rice rhizosphere of different rice growing areas as well as phyllosphere/rhizosphere were compared. Out of 20,069 16S rRNA gene sequences retreived from rhizosphere soil, 6485 were originated from Faisalabad, 5174 from Gujranwala and 8410 from Sheikhupura. Data analyses revelead that Proteobactria was dominant phylum at all three sites. Choloflexi was second abundant phylum at Sheikhupura, while Actinobacteria and Firmicutes at Gujranwala and Faisalabad. In addition to dominant culturable PGPB Bacillus genus at all three sites, Nitrosospira , Gaiella , Marmoricola , Clostridium s...Continue Reading

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