Department of Biological Sciences, Washington-Singer Laboratories, University of Exeter, EX4 4QG, Exeter, UK.
Planta. 1980 Jul;149(2):118-22. doi: 10.1007/BF00380871.
Roots of Acer pseudoplatanus seedlings grown in liquid nutrient medium contained much lower levels of both free and bound abscisic acid than did leaves. The levels of free abscisic acid were similar in young expanding and of mature leaves, but lower in older senscing leaves. Growing plants under long days or short days did not influence the levels of free and bound abscisic acid in leaves. However, under both long days and short days, levels of bound abscisic acid were lower at the end of the dark period than 8 h later during the light period. Phaseic acid was also detected during the light period but never at the end of the dark period.
在液体营养培养基中生长的槭树幼苗的根中，游离和结合型脱落酸的含量均明显低于叶片。游离型脱落酸在幼叶和成熟叶中的含量相似，但在衰老的感病叶中含量较低。在长日或短日条件下培养植物，并不影响叶片中游离型和结合型脱落酸的含量。然而，在长日和短日条件下，结合型脱落酸在黑暗期结束时的含量均低于光照 8 小时后的含量。在光照期也检测到了黄曲酸，但在黑暗期结束时从未检测到过。
