EFFECT OF HOST ON MULTIPLICATION AND DISTRIBUTION OF BEAN COMMON BLIGHT BACTERIA
EFFECT OF HOST ON MULTIPLICATION AND DISTRIBUTION OF BEAN COMMON BLIGHT BACTERIA
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DOI：
10.1094/phyto-70-675
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发表时间：
1980-01-01
期刊：
影响因子：
3.2
通讯作者：
SAETTLER, AW
中科院分区：
文献类型：
--
作者：
CAFATI, CR;SAETTLER, AW
用含利福平的培养液测定了抗病菜豆、中抗菜豆和感病菜豆的叶片和豆角上的抗利福平黄单胞菌种群。虽然中抗和感病品种的叶片和豆荚的细菌繁殖模式相似，但前者的最大细菌数量普遍较低，特别是在植物发育的生殖阶段。在感病和中抗寄主的未接种、无症状叶片中均检测到高XP群体，但在抗病基因型中未检测到高XP群体。在整个生长季节，XP对植物的系统定殖在感病基因中最大，在中抗基因中居中，在抗病基因中不存在。
Populations of rifampin-resistant Xanthomonas phaseoli (= X. campestris) (Xp) were determined in and on leaves and pods of resistant (tepary bean [Phaseolus acutifolius]), moderately resistant (breeding line MSU-51319 and Great Northern-type cultivar Valley [both P. vulgaris]) and susceptible bean hosts (cultivars Seafarer and Tuscola [both P. vulgaris]) by using a rifampin-containing medium. While bacterial multiplication patterns were similar for leaves and pods of moderately resistant and susceptible cultivars, maximum bacterial populations were generally lower in the former, particularly during the reproductive stage of plant development. High Xp populations were detected in and on uninoculated, symptom-free leaves of both susceptible and moderately resistant hosts, but not in or on those of resistant genotypes. Systemic colonization of plants by Xp throughout the growing season was greatest in the susceptible genotypes, intermediate in the moderately resistant genotypes, and absent in the resistant genotype.