Evaluation of rhizosphere, rhizoplane and phyllosphere bacteria and fungi isolated from rice in Kenya for plant growth promoters

SpringerPlus
Mwashasha Rashid MwajitaEsther M Kahangi

Abstract

Rice (Oryza sativa L.) is the most important staple food crop in many developing countries, and is ranked third in Kenya after maize and wheat. Continuous cropping without replenishing soil nutrients is a major problem in Kenya resulting to declining soil fertility. The use of chemical fertilizers to avert the problem of low soil fertility is currently limited due to rising costs and environmental concerns. Many soil micro-organisms are able to solubilize the unavailable phosphorus, increase uptake of nitrogen and also synthesize growth promoting hormones including auxin. The aim of this study was to isolate and characterize phyllosphere, rhizoplane and rhizosphere micro-organisms from Kenyan rice with growth promoting habits. In this study whole plant rice samples were collected from different rice growing regions of Kenya. 76.2%, over 80% and 38.5% of the bacterial isolates were positive for phosphate solubilization, nitrogenase activity and IAA production whereas 17.5% and 5% of the fungal isolates were positive for phosphate solubilization and IAA production respectively. Hence these micro-organisms have potential for utilization as bio-fertilizers in rice production.

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Citations

Oct 13, 2018·Microbiology·Larissa BarelliMichael J Bidochka
Mar 28, 2019·FEMS Microbiology Ecology·Long-Jun DingYong-Guan Zhu
Jan 24, 2020·Microbes and Environments·Khoa LaiShin Okazaki
Jun 4, 2020·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Giann Carlos Peñaloza AtuestaJonh Jairo Méndez Arteaga
Nov 30, 2019·Archives of Microbiology·Abhinav AeronRajesh Kumar Meena
Oct 30, 2018·Frontiers in Plant Science·Sofia D Carvalho, José A Castillo
Dec 18, 2020·Journal of Applied Microbiology·V A J M AbadiB Khatabi
Mar 31, 2021·Brazilian Journal of Microbiology : [publication of the Brazilian Society for Microbiology]·Surabhi JasrotiaManmohan Sharma
Jul 30, 2021·Frontiers in Microbiology·Ashraf Al AshhabGidon Winters
Jul 21, 2021·Environmental Science and Pollution Research International·Muskan AliSalma Mukhtar
Oct 5, 2021·Frontiers in Plant Science·Khanh Duy LeJin-Cheol Kim
Sep 6, 2017·Microbiological Research·Shobit ThapaBalasubramanian Ramakrishnan

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