イネもみの <i>Pseudomonas glumae</i> 感染に対する感受性と細菌密度の消長

DOI NDLデジタルコレクション 日本農学文献記事索引 Web Site Web Site 被引用文献11件
  • 曵地 康史
    Kasai Experimental Farm, Agricultural Science Research Laboratory, Takarazuka Research Center, Sumitomo Chemical, Co., Ltd. Iwate Biotechnology Research Center
  • 奥野 哲郎
    Department of Plant Pathology, Faculty of Agriculture, Kyoto University
  • 古澤 巖
    Department of Plant Pathology, Faculty of Agriculture, Kyoto University

書誌事項

タイトル別名
  • Susceptibility of Rice Spikelets to Infection with <i>Pseudomonas glumae</i> and Its Population Dynamics
  • イネもみのPseudomonas glumae感染に対する感受性と細菌密度の消長〔英文〕
  • イネモミ ノ Pseudomonas glumae カンセン ニ タイスル カ
  • Mode of Action of Oxolinic Acid against Bacterial Grain Rot of Rice (Part 2)

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抄録

Spikelets of rice plants at flowering were most susceptible to invasion of Pseudomonas glumae. When P. glumae invaded into flowering spikelets at a density of 1cfu/grain or more, the population of bacteria in spikelets greatly increased up to 9 days after the flowering day, resulting in bacterial grain rot of rice. In rice spikelets the time of accumulation of intermediate sugars for the biosynthesis of grain starch were consistent with the time of increase of bacterial population. P. glumae was able to utilize intermediate sugars except for sucrose and triose phosphates. Oxolinic acid (5-ethyl-5, 8-dihydro-8-oxo[1, 3]dioxolo[4, 5-g]quinoline-7-carboxylic acid, Starner®) had an antibacterial activity against P. glumae on the epidermis of spikelets, and reduced the bacterial infectivity into rice spikelets. Oxolinic acid applied to flowering spikelets also inhibited multiplication of P. glumae invaded into spikelets and protected grains from bacterial grain rot of rice.

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