Biologia plantarum 46:157-159, 2003 | DOI: 10.1023/A:1022337706443

Rice Seedlings Release Allelopathic Substances

H. Kato-Noguchi1, T. Ino1
1 Department of Biochemistry and Food Science, Faculty of Agriculture, Kagawa University, Miki, Kagawa, Japan

Rice (Oryza sativa L.) seedlings inhibited the growth of hypocotyls and roots of cress (Lepidium sativum L.) seedlings when both seedlings were grown together. Two growth inhibiting substances were found in the culture solution in which rice seedlings were hydroponically grown for 14 d. One growth inhibitor was further purified. This suggests that the rice seedlings may produce growth inhibiting substances, acting as allelochemicals to other plants, and release them from their roots into the environment.

Keywords: growth inhibition; hydroponics; Lepidium sativum; Oryza sativa; root exudates
Subjects: allelopathy; cress, bioassay for allelochemicals; growth analysis, biomass production; growth, inhibition by allelopathic substances; Lepidium sativum; Oryza sativa; rice, release of allelopathic substances; root, exudates, growth inhibition

Prepublished online: March 1, 2003; Published: July 1, 2003Show citation

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Kato-Noguchi, H., & Ino, T. (2003). Rice Seedlings Release Allelopathic Substances. Biologia plantarum, 46(1), 157-159. doi: 10.1023/A:1022337706443.
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