Ibiden Company Limited

Tomohiro Nohara

Katsuya Ohno

Teruaki Yokota

Toru Nakai

Kenta Uemura

Kumiko Takada

Hiroko Takagi

The objective of the invention is to provide a plant activator with superior resistance-inducing activity and low toxicity and soil contamination. A plant activator comprising, as an active ingredient, an oxo fatty acid derivative of general formula (I):HOOC—(R)—C═C—C(═O)—R  (I)

Plant activator

The objective of the invention is to provide an agent for increasing a plant functional component content, which is capable of increasing a content of the plant functional component by being adequately sprayed to the plant or injected into the soil without using stress cultivation conditions or plants with high content of functional component, and a method for manufacturing the same. An agent for increasing a plant functional component content comprising a fatty acid metabolite obtainable by a metabolism of a fatty acid with 4-30 carbon atoms by proteobacteria under a dissolved oxygen concentration of 0.1-8 mg/L, and a method for manufacturing an agent for increasing a plant functional component content comprising a fatty acid metabolite, comprising a step for a fatty acid metabolism wherein a fatty acid with 4-30 carbon atoms is subjected to a proteobacterial metabolization under a dissolved oxygen concentration of 0.1-8 mg/L.

Agent for increasing a plant functional component content and a method for manufacturing the same

The objective of the invention is to provide a plant activator with superior resistance-inducing activity and low toxicity and soil contamination. A plant activator comprising, as an active ingredient, an oxo fatty acid derivative of general formula (I):HOOC&#x2014;(R)&#x2014;C&#x2550;C&#x2014;C(&#x2550;O)&#x2014;R&#x2003;&#x2003;(I)(wherein, Ris a straight or branched alkyl group with 6 to 12 carbon atoms, and optionally comprises one or more double bonds, Ris an alkyl group with 2 to 8 carbon atoms, and optionally comprises one or more branches and/or double bonds) or a salt or an ester thereof.

The objective of the invention is to provide a plant activator with superior resistance-inducing activity and growth promoting activity and low toxicity and soil contamination. A plant activator comprising a fatty acid metabolite obtainable by a metabolism of a fatty acid with 4 to 30 carbon atoms by a proteobacteria under a dissolved oxygen concentration of 0.1-8 mg/L, and a method for manufacturing a plant activator comprising a fatty acid metabolite, comprising a step for fatty acid metabolism wherein a fatty acid with 4 to 30 carbon atoms is subjected to a proteobacterial metabolization under a dissolved oxygen concentration of 0.1-8 mg/L. A method for manufacturing a plant activator comprising a fatty acid metabolite, comprising a step for fatty acid metabolism wherein a fatty acid with 4 to 30 carbon atoms is subjected to a proteobacterial metabolization under a dissolved oxygen concentration of 0.1-8 mg/L.

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Gifu, Japan

Tomohiro Nohara