Studies on Yellow Bacteria Inhabiting the Surface of Newly Croped Rice

(Part 3). Morphological and physiological characters of the three isolates

Abstract

One Erwinia and two Pseudomonas were isolated from healthy rice Kernels which had been newly croped in Akita Prefecture. The one was identified as Erwinia herbicola (Düggeli) Dye (1964) and the other two were belonging to the fluorescent group named by Iizuka and Komagata.
Erwinia one showed agreement with the description of Pseudomonas trifolii Huss isolated by Iizuka and Komagata except for the maximum growth temparature, flagellation and acidity in starch-peptone medium. One of the isolates in the fluorescent group of Pseudomonas showed agreement with the description of Pseudomonas straminea which was newly isolated by Iizuka and Komagata except for the three polar flagella and the assimilation of 2 keto-gluconate. Another white one was believed to be Pseudomonas schuylkilliensis which showed agreement with the description of Iizuka and Komagata except for the feeble hydrogen sulfide production and assimilation of salicylic acid.
Rice seeds did not show no symptom on the surface of them when they were inoculated.