Paper Title:
Phosphate Solubilizing Rhizospherebacterial T21 Isolated from Dongxiang Wild Rice Species Promotes Cultivated Rice Growth
  Abstract

The capability of bacterial strain T21 isolated from Dongxiang wild rice (Oryza rufipogon) rhizosphere to behave as plant growth promoting bacteria (PGPB) was investigated. Rhizosphere bacteria T21 showed P-solubilizing capability when cultured in the PVK medium amended with tricalcium phosphate. The strain T21 also showed nitrogen-fixing activity in N-free medium, and produced indole-3-acetic (IAA) and siderophore. The strain T21 was identified as Pantoea agglomerans by morphology, physiological and biochemical properties, and 16S rDNA sequence analysis. The strain T21 was formulated as an inoculant in order to evaluate its growth promotion effect in the field when applied on the cultivated rice at the sowing time. It showed a significant plant growth-promoting effect on seedling length, root length, fresh weight and dry weight of the cultivated rice (Oryza sativa). These findings fetched us to conclude that wild rice rhizospheric microorganism Pantoea agglomerans T21 could stimulate the growth of cultivated rice in vivo in poor soil.

  Info
Periodical
Chapter
Chapter 2:Materials Science and Bioengineering
Edited by
Barry Tan
Pages
167-175
DOI
10.4028/www.scientific.net/AMM.108.167
Citation
Q. G. Zeng, F. Luo, Z. B. Zhang, R. M. Yan, D. Zhu, "Phosphate Solubilizing Rhizospherebacterial T21 Isolated from Dongxiang Wild Rice Species Promotes Cultivated Rice Growth", Applied Mechanics and Materials, Vol. 108, pp. 167-175, 2012
Online since
October 2011
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