<FONT face="Verdana">Pathotype Identification and Distribution of Xanthomonas oryzae pv. oryzae in Japonica Rice Planted Region of the Northwest Yunnan Plateau, China</FONT>

PENG Xin-xi,YU Teng-qiong,LI Jun,YANG Ya-yun,HE Jian-ping,LI Jin-ling ,XU Fu-rong,DAI Lu-yuan

doi:10.3969/j.issn.1001-7216.2011.01.018

2011 , Vol. 25 >Issue 1: 107 - 111

DOI: https://doi.org/10.3969/j.issn.1001-7216.2011.01.018

研究简报

Pathotype Identification and Distribution of Xanthomonas oryzae pv. oryzae in Japonica Rice Planted Region of the Northwest Yunnan Plateau, China

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¹Institute of Biotechnology and Germplasm Resources, Yunnan Academy of Agricultural Sciences, Kunming 650205, China; ²School of Life Sciences, Yunnan University, Kunming 650091, China; ³Institute of Agricultural Sciences of Xishuangbanna, Jinghong 666100, China; *Corresponding author, E-mail: luyuandai@yahoo.com.cn

Received date: 1900-01-01

Revised date: 1900-01-01

Online published: 2011-01-10

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Abstract

Thirty isolates of Xanthomonas oryzae pv. oryzae (Xoo) collected from japonica rice in the northwest Yunnan plateau including Chuxiong, Dali and Lijiang prefectures were tested on seven differential cultivars(Haonuoyang, TN1, Kogyoku, Zhenzhu’ai, IR26, Nanjing 33 and Kinmaze) to analyze their pathotypes and distributions. Nine pathotypes were identified, of which pathotype Ⅰ was dominant and pathotype Ⅴ was the most virulent. The isolate DL089 might be a new pathotype according to its disease reaction pattern (RRRRSSS) (R, resistant; S, susceptible) in the seven differential cultivars.

Key words： japonica rice; Yunnan plateau rice planted region; Xanthomonas oryzae pv. oryzae; pathotype; differential cultivar; distribution

Cite this article

PENG Xin-xi,YU Teng-qiong,LI Jun,YANG Ya-yun,HE Jian-ping,LI Jin-ling ,XU Fu-rong,DAI Lu-yuan . Pathotype Identification and Distribution of Xanthomonas oryzae pv. oryzae in Japonica Rice Planted Region of the Northwest Yunnan Plateau, China[J]. Chinese Journal OF Rice Science, 2011 , 25(1) : 107 -111 . DOI: 10.3969/j.issn.1001-7216.2011.01.018

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