PROBLEM TO BE SOLVED: To provide agrochemicals and the like utilizing the effect of induction of systemic acquired resistance of plants, and to provide a proliferation inhibitor not only to plant pathologenic bacteria but also to harmful microbes.SOLUTION: Rare sugars are used for inducing a systemic acquired resistance to plants or for suppressing proliferation of microbes. Compositions having these rare sugars as effective components are used as agrochemicals utilizing the effect of induction of systemic acquired resistance of plants plant disease suppressing agents and agents for inducing plant growth control factors such as for disease resistance, pest resistance, maturing of fruits, dormant breaking, germination control, dryness resistance, and also environmental stress resistance such as low temperature resistance, high temperature resistance, salts resistance, heavy metal resistance, and an agent for inducing phytohormone-like action comprising promotion of flowering and also as proliferation inhibitor of microbes. The rare sugars are aldoses such as D-allose, D-altrose, or L-galactose or ketoses such as D-psicose, or a mixture of D-psicose and D-fructose.COPYRIGHT: (C)2006,JPO&NCIPI【課題】 植物の全身獲得抵抗性の誘導の効果を利用した農薬などの提供。植物病原菌だけでなく、有害微生物の増殖抑制剤の提供。【解決手段】 植物の全身獲得抵抗性誘導または微生物の増殖抑制への希少糖の使用。植物の全身獲得抵抗性の誘導の効果を利用した農薬、植物病害抑制剤、植物生長調節因子の誘導剤(病害抵抗性、虫害抵抗性、果実の成熟、休眠打破、発芽調節、乾燥耐性、そのほか低温耐性、高温耐性、塩類耐性、重金属耐性などの環境ストレス耐性および開花促進からなる植物ホルモン的な作用の誘導剤)、ならびに、微生物の増殖抑制剤としての使用。希少糖は(アルドースD-アロース、D-アルトロースまたはL-ガラクトース)またはケトース(D-プシコース、またはD-プシコースとD-フラクトースの混合物)である。【選択図】 図1
