スギ材変色を起すいわゆる「ハチカミ」病について(II) : Cephalosporium菌の生理的性質,病源性およびその接種による材質の変化

島根農科大学研究報告 Volume 9 Page (A-1)203-208- published_at 1961-03-31
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Title
スギ材変色を起すいわゆる「ハチカミ」病について(II) : Cephalosporium菌の生理的性質,病源性およびその接種による材質の変化
Title
Studies on the so-called "Hachikami" Disease Causing Brown-stain of Cryptomeria Wood(II) : Pathogenicity of Cephalosporium fungus to the suscept, its physiological characters and the physico-chemical change of diseased wood
Title Transcription
スギザイ ヘンショク オ オコス イワユル ハチカミビョウ ニツイテ 2 CEPHALOSPORIUM キン ノ セイリテキ セイシツ ビョウゲンセイ オヨビ ソノ セッシュ ニヨル ザイシツ ノ ヘンカ
Creator
Yasumori Hiroshi
Ibuki Kota
Yamamoto Masaki
Source Title
島根農科大学研究報告
Volume 9
Start Page (A-1)203-208
Journal Identifire
ISSN 05598311
Descriptions
Previously, the writers isolated Cephalosporium sp. from cryptomeria affected by the so-called "Hachikami" disease. During 1959-1960, this fungus was inoculated to sound trunks of cryptomeria by boring or by stripping the bark. On sixth month after inoculation, similar staining just as naturally occured browning was recognized around inoculated and non-inoculated parts.
This fungus grows and germinates at rather high temperature (Opt. temp. 28℃) and in wide range of hydrogen-ion concentration (Opt. pH 4.0).
From the histo-chemical observation, cellulose and lignin contents in the browned tissue seem to be same as sound tissue. These results may correspond with the non-siginficant difference of the compressive strength between the browning and sound wood. The phenol substances increase at browning portion of wood affected by the disease, and present fungus has enzyme which oxidize some phenol compounds. These facts, may be concerned with the occurence of browning on affected wood.
Language
jpn
Resource Type departmental bulletin paper
Publisher
島根農科大学
The Shimane Agricultural College
Date of Issued 1961-03-31
Access Rights open access
Relation
[NCID] AN00108241
Remark A,Bを含む