白首乌中二乙酰基哌可碱对微体 H(+)-ATP 酶活性的影响。
Effect of diacetyl piquerol on H(+)-ATPase activity of microsomes fromIpomoea purpurea.
机构信息
Instituto de Fisiología Celular, Universidad National Autónoma de Méxco, Apartado Postal 70-600, 04510, México, D.F., Mexico.
出版信息
J Chem Ecol. 1990 Jul;16(7):2253-61. doi: 10.1007/BF01026935.
The effect of an allelopathic compound, diacetyl-piquerol on the H(+) -ATPase activity of the microsomal fraction from the radicles of a common weedIpomoea purpurea was studied. The diacetyl-piquerol inhibited the germination and radicle growth fromI. purpurea; the radicle growth was increasingly inhibited (10% to 100%) as piquerol concentrations were raised (10 μM to 1000 μM). The H(+)-ATPase activity was inhibited (48%) by 500 μM diacetyl-piquerol, and this inhibition was higher in plasma membrane ATPase (67.2%) than in tonoplast membrane ATPase (31.4%). Additional studies of the precise physiological mechanisms of interference caused by allelopathic compounds are needed.
研究了化感化合物二乙酰基皮枯醇对普通杂草蕹菜（Ipomoea purpurea）根尖微粒体部分 H(+) -ATP 酶活性的影响。二乙酰基皮枯醇抑制蕹菜的萌发和根生长；随着皮枯醇浓度（10 μM 至 1000 μM）的升高，根生长受到的抑制程度逐渐增加（10% 至 100%）。500 μM 的二乙酰基皮枯醇抑制 H(+)-ATP 酶活性，其中质膜 ATP 酶（67.2%）受到的抑制高于液泡膜 ATP 酶（31.4%）。需要进一步研究化感化合物干扰的精确生理机制。
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