植物ウイルスの感染と増殖に関する研究 : (1) キウリモザイクウイルス感染葉に見られる呼吸の異常

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The respiration rates of leaves systemically infected with CMV (ordinary strain) were compared with those of locally infected leaves. Nicotiana tabacum (Bright Yellow) was used as the systemic infection plant and Vigna sinensis Endl. (variety Kurodane-Sanjaku) as the local infection plant. The upper surface of the leaf of a given position was inoculated by rubbing with the sap expressed from tobacco leaves infected systemically by CMV. After inoculation, respiration of detached infected leaves were measured periodically with a Warburg respirometer. 1. The increase in respiration of leaves infected by CMV was observed immediately after the inoculation in the systemically infected plants as well as locally infected plants. The rate of increase in the systemically diseased tobacco leaves was greater than that of locally infected cowpea leaves. 2. In the systemically diseased leaves, the respiration increased until 24 hrs. after the inoculation, then decreased to the rate of respiration in healthy leaves within the subsequent 48 hrs. This remarkable increase in respiration apparent simultates with the those of multiplication of the virus, suggesting its relation to the formation of the virus. 3. In the locally infected cowpea leaves, the rate of respiration showed two peaks, namely at the 9th hour after the inoculation and during a period from the 13th to the 17th hour, the latter being in accord with the development of local lesions. 4. The first peak on the curve of respiration in cowpea leaves, seems to correspond to the peak on that of systemically infected tobacco leaves. Judging from the experiments on enzyme inhibitors and observation on the development of local lesions, the second peak is considered to be related to the multiplicaion of the virus, but to the activity of the polyphenol oxidase. Thus, the process of the increase in respiration in the local infection during a period of a few days after inoculation.
日本植物病理学会の論文
1963-06-30

植物ウイルスの感染と増殖に関する研究 : (1) キウリモザイクウイルス感染葉に見られる呼吸の異常

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