抗生物質によるイネ白葉枯病防除に関する研究 : (第2報) Cellocidin のイネ白葉枯病菌の生育, 呼吸並びに解糖系に対する作用

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Effects of an antibiotic, cellocidin, on growth, respiration, and glucose catabolism of Xanthomonas oryzae were studied. Cellocidin was previously reported to be effective as a protectant bactericide against bacterial leaf blight of rice plant caused by X. oryzae. 1. The growth of X. oryzae in shaken liquid media was completely inhibited by cellocidin at a concentration of 4 ppm, when the antibiotic was added 6 hours after inoculation, whereas the minimum growth inhibitory concentration of cellocidin against X. oryzae as assessed by the agar dilution streak method was 10 ppm, as shown in the proceeding paper. 2. Cellocidin at a concentration of 10 ppm inhibited about 50 per cent of endogenous respiration of resting cells of X. oryzae. Inhibition was still not complete at a concentration of 100 ppm. Exogenous respiration of X. oryzae in the presence of glucose, gluconate, pyruvate, or acetate, as substrate was almost inhibited at a concentration of 10 ppm, and completely inhibited at 100 ppm. when succinate was used as substrate, inhibition was slight even at 100 ppm. 3. The pathway of glucose utilization by X. oryzae and the effect of cellocidin on the pathway were studied by measuring lactic acid formation, oxygen uptake, and pyruvate formation by resting metabolic intermediates of EMP glycolytic system or 6-PG splitting system. The results suggested utilization. Cellocidin at a concentration of 10-100 ppm inhibited the EMP pathway, but not 6-PG splitting system.
日本植物病理学会の論文
1963-09-25

抗生物質によるイネ白葉枯病防除に関する研究 : (第2報) Cellocidin のイネ白葉枯病菌の生育, 呼吸並びに解糖系に対する作用

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