日本植物病理学会報
Online ISSN : 1882-0484
Print ISSN : 0031-9473
ISSN-L : 0031-9473
Bacterium solanacearumの變異に關する研究 豫報
岡部 徳夫
著者情報
ジャーナル フリー

1937 年 7 巻 2 号 p. 95-104_1

詳細
抄録

1. As has already been noticed by various investigators, Bact. solanacearum, a causal organism of brown rot of Solanaceae and other plants belonging to different families, is very variable in pathogenicity as well as in morphological, physiological and cultural characters.
2. According to the author's observation made up to the present time, there are at least the following 16 types: “F”. “Op”, “C”, “SS”, “SS'”, “R”, “TRS”, “TRS'1”, “TRS'2”, “TRS''”, “C'M”, “R''”, “C''”, “Cu”, “RS”, and “F''”.
3. The first-named 4 types were isolated from the lesions of tomatoes, tobaccos, eggplants, etc. naturally affected in the fields. Type “F” is a so-called “fluidal” form, which is characterized by having an irregular, fluidal, milky colony; the next one, “Op”, is a so-called “opalescent” form, which is characterized by a circular, homogeneous, opalescent colony; the third one, “C”, is characterized by a circular, light brownish, concentric striate colony, and the fourth one, “SS”, is characterized by a circular, pale fluorite green colony with a cream color centre.
4. The remaining 12 types were originated from the colonies appeared on the agar plates subcultured every 5-7 days by use of the following liquid cultures, i. e. beef extract bouillon, potato dextrose solution, milk, and Uschinsky's solution previously inoculated with the above-named four types.
5. Type “F” is the original form of Bact. solanacearum. Types “Op”, “C”, and “SS” appear to arise from “F” as a result of variation occurred naturally in the tissues of the diseased plants.
6. Type “F” is easily isolable from any young lesions or from the plants in the acute phase of the disease, whereas types “Op”, “C”, and “SS” occur only in a rather advanced stage or in old lesions.
7. All the types are unstable in liquid media except types “R''” and “TRS'1” and easily change to the other types.
8. All the types are liable to the lytic action of the bacteriophage specific for Bact. solanacearum.

著者関連情報
© 日本植物病理学会
次の記事
feedback
Top