45.塩ストレス下におけるヒマワリ(Helianthus annuus L.)幼苗の根の生理活性に対する5-アミノレブリン酸(ALA)の作用(口頭発表)

概要

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Sunflower seedlings at 8-leaf stage were grown in water or ALA solution (1ppm) for 2 days. After the incubation the seedlings were transferred to nutrient solutions with or without NaCl (2000ppm) and grown for 2 days. Then the stems were cut horizontally at 1cm height from the roots and the bleeding solutions from the cut stem-surface were collected for 2 hours. The volume of the solution was determined, and total nitrogen, ions (P, K, Ca) and amino acids in the solutions were analyzed. The volume of bleeding solution decreased to 40% with NaCl treatment, and the contents of total nitrogen, ions and lysine were also decreased. But those inhibitory effects caused by NaCl were not observed in plants treated with ALA.
植物化学調節学会の論文
2008-10-06