Scientific Reports of the Faculty of Agriculture, Okayama University
Published by the Faculty of Agriculture, Okayama University
ONLINE ISSN : 2186-7755

病原体を接種して萎凋させたアカマツ実生からの病原体の再分離およびマツノザイセンチュウの分離系統間の病原性の差の原因

Kawazu, Kazuyoshi
Kaneko, Noboru
Hiraoka, Kyoko
Yamashita, Hideki
Abstract
This paper shows that aseptic red pine seedings inoculated with the aseptic nematode (AOKD-3) carrying the bacterium (Bacillus cereus strain HY-3) and the bacterium (HY-3) do not. These findings indicate that the phenylacetic acid producers accompanying the nematode are the pathogen of the pine wilt, conforming to Koch's four principles. The fact that the weakly pathogenic isolate of nematode cannot so effectively wilt the sedding as the strongly pathogenic isolate, no matter how pathogenic a bacterium accompanies it, suggests that inherent characters such as mobility and propagation of the nematode are also important for thenematode to wilt the seedling.
Keywords
Koch's principle
Bursaphelenchus xylophilus
Bacillus cereus
Bacillus megaterium
pathogen of pine wilt
ISSN
0474-0254
NCID
AN00033029