PSEUDOMONAS-PLANTARII SP-NOV, THE CAUSAL AGENT OF RICE SEEDLING BLIGHT
PSEUDOMONAS-PLANTARII SP-NOV, THE CAUSAL AGENT OF RICE SEEDLING BLIGHT
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DOI：
10.1099/00207713-37-2-144
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发表时间：
1987-04-01
期刊：
影响因子：
--
通讯作者：
FUKAZAWA, C
中科院分区：
文献类型：
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作者：
AZEGAMI, K;NISHIYAMA, K;FUKAZAWA, C
从日本千叶县和新泻县的水稻病苗和苗床土壤中分离出一种引起水稻幼苗枯萎病的需氧革兰氏阴性细菌。细胞是无孢子形成和无包囊的直杆（0.7 - 1.0 × 1.4 - 1.9 μ m），其单独、成对或以短链出现，并且是运动的，具有1 - 3个极鞭毛。该细菌显示出假单胞菌属的特征，并且可以清楚地与已知在育苗箱中生长的水稻中引起幼苗疾病的谷假单胞菌和燕麦假单胞菌以及与其他细菌区分开。脱氧核糖核酸的碱基组成为64.8mol%鸟嘌呤加胞嘧啶。植物假单胞菌Pseudomonasplantariisp. nov.本文提出模式菌株是NIAES 1723（JCM 5492，AZ 8201）。新物种的所有菌株都产生致病物质托酚酮（一种具有七元环的非苯型芳香族化合物）和红棕色色素，该色素被认为是该物质的衍生物。
An aerobic, gram-negative bacterium that causes seedling blight of rice was isolated from diseased rice seedlings and bed soil in nursery boxes in Chiba and Niigata Prefectures, Japan. The cells are nonsporeforming and nonencapsulated straight rods (0.7 to 1.0 by 1.4 to 1.9 .mu.m) that occur singly, in pairs, or in short chains and are motile with one to three polar flagella. The bacterium displays the characteristics of the genus Pseudomonas and can be clearly differentiated from Pseudomonas glumae and Pseudomonas avenae, which are known to cause seedling diseases in rice grown in nursery boxes, and from other bacteria. The deoxyribonucleic acid base composition is 64.8 mol% guanine plus cytosine. A new species, Pseudomonas plantarii sp. nov., is proposed. The type strain is NIAES 1723 (JCM 5492, AZ 8201). All strains of the new species produce the disease-causing substance tropolone (a nonbenzenoid aromatic compound with a seven-membered ring) and a reddish brown pigment which was considered to be a derivative of the substance.