11. アカクローバーにおける根寄生植物種子発芽刺激物質オロバンコール生産・分泌のリン応答性

米山 香織, 竹内 安智, 米山 弘一, 関本 均

doi:10.18978/jscrpanb.40.0_30

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タイトル別名

11. The response to phosphorus availability of the production and/or exudation of orobanchol, germination stimulant for root parasitic plants, in red clover

説明

Among mineral nutrients, reduced supply of phosphorus significantly enhanced production and/or exudation of the germination stimulant orobanchol for Orobanche minor by red clover plants grown hydroponically. Therefore, response of orobanchol exudation to phosphorus availability was examined in detail. Orobanchol exudation greatly increased 48 hours after transferring to low P condition (8μM P). The plants exuded more orobanchol when grown in media with lower P levels. When the plants were continuously grown at 8μM P, orobanchol exudation continued to increase further with incubation period. By contrast, when the plants grown at 8μM P were transferred to 80 or 160μM P, orobanchol exudation decreased within the first 24 hours. These data suggest that red clover plants sense and respond quickly to changes of phosphorus availability in soil and regulate biosynthesis and/or exudation of strigolactones.

収録刊行物

植物化学調節学会研究発表記録集

植物化学調節学会研究発表記録集 40 (0), 30-, 2005

一般社団法人植物化学調節学会

詳細情報詳細情報について

CRID: 1390282679400769664

NII論文ID: 110002552709

DOI: 10.18978/jscrpanb.40.0_30

ISSN: 21896313; 09191887

本文言語コード: ja

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CiNii Articles

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