Relationship between Light-induced Growth Inhibition and Acidic Growth Inhibitors in the Seedlings of Dwarf and Tall Cultivars of Phaseolus vulgaris L.

Japanese Journal of Crop Science

Eiji SHIOTA¹  Hisashi KATO¹ 

关键词: Growth inhibitor;    インゲンマメ;    Legume;    生長抑制物質;    Light inhibition;    赤色光;    Phaseolus vulgaris L.;    光抑制;    Red light;    マメ科植物;   

DOI  :  10.1626/jcs.63.285

学科分类：农业科学（综合）

来源: Nihon Sakumotsu Gakkai / Crop Science Society of Japan

【 摘 要 】

To clarify the role of endogenous inhibitors of growth in dwarf and tall bean plants, a search for specific inhibitors of growth was undertaken using the acidic substances of acetone extracts from the hypocotyls of dwarf (cv. Morocco) and tall (cv. Kentucky Wonder) bean seedlings (Phaseolus vulgaris L.). Two inhibitors were isolated from both cultivars and named A-1 and A-2, respectively, based on the order of their elution from a silica-gel column. Variations in the activity of the inhibitors in hypocotyls of both cultivars after the onset of red-light irradiation were determined using a bean bioassay, and the results were compared with those of red light-induced inhibition of growth. The difference in the activity of A-1 and A-2 between the two cultivars was not great, and the changes with time in activity of A-1 and A-2 in hypocotyls of each cultivar did not reflect the light-induced inhibition of growth of hypocotyls of the same cultivar. These results suggest that acidic inhibitors, A-1 and A-2, are not involved in light-induced growth inhibition of the bean.

【 授权许可】

Unknown