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

Mwashasha Rashid Mwajita, Hunja Murage, Akio Tani, Esther M. Kahangi

Research output: Contribution to journalArticle

21 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)1-9
Number of pages9
JournalSpringerPlus
Volume2
Issue number1
DOIs
Publication statusPublished - 2013

Fingerprint

rhizoplane
phyllosphere
Kenya
rhizosphere
plant growth
rice
fungi
bacteria
microorganisms
solubilization
indole acetic acid
soil fertility
phosphates
continuous cropping
biofertilizers
staple foods
nitrogenase
food crops
soil nutrients
developing countries

Keywords

  • IAA production
  • Micro-organisms
  • Nitrogen fixation
  • Phosphate solubilization

ASJC Scopus subject areas

  • General

Cite this

Evaluation of rhizosphere, rhizoplane and phyllosphere bacteria and fungi isolated from rice in Kenya for plant growth promoters. / Mwajita, Mwashasha Rashid; Murage, Hunja; Tani, Akio; Kahangi, Esther M.

In: SpringerPlus, Vol. 2, No. 1, 2013, p. 1-9.

Research output: Contribution to journalArticle

Mwajita, Mwashasha Rashid ; Murage, Hunja ; Tani, Akio ; Kahangi, Esther M. / Evaluation of rhizosphere, rhizoplane and phyllosphere bacteria and fungi isolated from rice in Kenya for plant growth promoters. In: SpringerPlus. 2013 ; Vol. 2, No. 1. pp. 1-9.
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