Distribution of Xanthomonas citri Strain in Relation to the Sensitivity to Phages CP1 and CP2
Distribution of Xanthomonas citri Strain in Relation to the Sensitivity to Phages CP1 and CP2
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柑橘黄单胞菌菌株分布与噬菌体 CP1 和 CP2 敏感性的关系
DOI：
10.3186/jjphytopath.40.6
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发表时间：
1974
期刊：
影响因子：
--
通讯作者：
T. Obata
中科院分区：
文献类型：
--
作者：
T. Obata
大量的柑橘黄单胞菌菌株代表五个主要柑橘地区（不包括检疫溃疡的出口地区）进行了测试，他们的敏感性Wakimoto的CP1和CP2。在整个地区，CP2敏感菌株主要广泛分布在温州橙子种植，而在其他品种的种植，无论是CP1敏感和CP2敏感菌株发生在不同的比例。菌株的地理分布格局不明显。两个不同的菌株可以混合出现在一棵树的一片叶子上，但一个单一的病变通常是由一个同源菌株组成的。在广泛的调查中收集的1256个菌株中，只有17个（1.4%）对CP 1和CP 2都有抗性。在密集的现场调查2514个菌株检查无耐两种真菌。在覆盖区域的任何部分，均未发现存在免疫菌株群的迹象。CP 1和CP 2的种内裂解谱足够全面，几乎包括所有的X。柑橘属柑橘属
A large number of Xanthomonas citri isolates representing five major citrus regions (excluding quarantined canker-free export areas involved) were tested for their susceptibility to Wakimoto's phages CP1 and CP2. Throughout the regions, CP2-sensitive strains were predominantly widespread in Satsuma orange plantings while in plantings of other varieties, both CP1-sensitive and CP2-sensitive strains occur in varying ratios. Geographical pattern of the strain distribution was not distinct. Two different strains can occur in mixture on one leaf of a tree but one single lesion is usually composed of one homologous strain.Of a sum total of 1256 isolates collected in wide range surveys, only 17 (1.4 percent) were resistant to both CP1 and CP2. None out of 2514 isolates examined in intensive spot surveys was resistant to both phages. No indication was recognized for the presence in clusters of immune strains in any part of the covered regions. Intraspecific lysis spectrum of CP1 plus CP2 is comprehensive enough to include virtually all X. citri strains which occur in Japanese citrus export regions.