我们发现,从胶树高部位原刈面切刈的盘状树皮,是研究内源乙烯的最合适的材料.取盘状树皮与从割线刮下的树皮进行比较时,其结果是不同次抽提的乙烯变异较小,一致性较好.从创伤敏感的无性系切割的盘状树皮,其内源乙烯浓度显著地高过那些抗创伤品系.因此,创伤敏感的品系的树皮对针刺采胶、常规重割和胶舌刺伤的反应,看来很可能是因为树皮组织中存在高浓度的内源乙烯. We found that the disc-shaped bark cut from the original height of the gum tree was the most suitable material for the study of endogenous ethylene, and when the disc-like bark was compared with the bark scraped off from the secant, Variations of ethylene at different times showed less variation and better consistency, and endogenous ethylene concentration was significantly higher than those of anti-trauma strains from wound-sensitive discarded barks of clonal clones. Therefore, The reaction of the bark to acupuncture, routine weighting, and tongue puncture seems most likely due to the high concentration of endogenous ethylene present in the bark tissue.