AGRIVITA, Journal of Agricultural Science
Vol 35, No 2 (2013)

PATHOTYPE GROUPING OF Xanthomonas oryzae pv. oryzae ISOLATES FROM SOUTH SULAWESI AND SOUTHEAST SULAWESI

Khaeruni, Andi (Unknown)
Wijayanto, Teguh (Unknown)



Article Info

Publish Date
01 Oct 2013

Abstract

Bacterial leaf blight caused by Xanthomonas oryzae pv. oryzae (Xoo) is an important rice disease, and has caused significant economic losses.  This research aimed to determine the pathotype grouping and the distribution of Xoo isolates of South and Southeast  Sulawesi. In order to obtain the information, 61 Xoo isolates of South Sulawesi and 29 isolates of Southeast Sulawesi were evaluated for their pathotype grouping against 5 diffential varieties. Research results showed that in South Sulawesi there were 2 pathotype groups, namely pathotype IV (32.79%) and pathotype VIII(67.21%).  Pathotype VIII was widely distributed over the Western and Central areas of South Sulawesi, whereas pathotype IV was widely distributed over the Southern area.  In Southeast Sulawesi, it was found 5 pathotypes, namely pathotypes IV (27.58%), VI (10.34%), VIII (13.79%), IX (20.68%), and X (27.58%), with a limited and scattered distribution pattern on several areas. These results indicate that  Xoo pathotype groups in South Sulawesi and Southeast Sulawesi are varied and tend to sift to more virulent pathotypes. Keywords: bacterial leaf blight, pathotype group, Xanthomonas oryzae pv. oryzae

Copyrights © 2013






Journal Info

Abbrev

AGRIVITA

Publisher

Subject

Agriculture, Biological Sciences & Forestry

Description

AGRIVITA Journal of Agricultural Science is a peer-reviewed, scientific journal published by Faculty of Agriculture Universitas Brawijaya Indonesia in collaboration with Indonesian Agronomy Association (PERAGI). The aims of the journal are to publish and disseminate high quality, original research ...