International Journal of Chemical Studies
Vol. 6, Issue 1 (2018)
Physiological and biochemical characterisation of Xanthomonas oryzae pv. oryzae inciting bacterial leaf blight of rice and proving of its pathogenicity
Author(s): A Meena, JJ Kadam and Safna M
Abstract: Bacterial blight caused by Xanthomonas oryzae pv. oryzae is a major disease of rice throughout the world including Konkan Region of Maharashtra known for causing serious losses of the crop. Five different isolates of Xanthomonas oryzae pv. oryzae were collected from different regions of Maharashtra and subjected to different physiological and biochemical tests. All the isolates were found Gram positive and further KOH solubility test was conducted to re-confirm Gram staining of all isolates. All isolates exhibited positive results for starch hydrolysis test, gelatin liquefaction test, acid production from carbohydrates test, gas production test and catalase activity test. However isolates Xoo1 and Xoo2 showed negative results to hydrogen sulphide production test but Xoo3, Xoo4 and Xoo5 were positive for hydrogen sulphide test. pathogenicity tests were varied significantly in terms of disease severity among each other and further confirmed with different biochemical tests.
Pages: 165-167 | 842 Views 32 Downloads
How to cite this article:
A Meena, JJ Kadam, Safna M. Physiological and biochemical characterisation of Xanthomonas oryzae pv. oryzae inciting bacterial leaf blight of rice and proving of its pathogenicity. Int J Chem Stud 2018;6(1):165-167.