|
|||||
|
|
Effect of diacetyl piquerol on H+-ATPase activity of microsomes fromIpomoea purpurea |
|
| Authors: | R Cruz Ortega A L Anaya M Gavilanes-Ruiz S Sanchez Nieto M Jimenez Estrada |
| Affiliation: | (1) Instituto de Fisiología Celular, Universidad National Autónoma de Méxco, Apartado Postal 70-600, 04510 México, D.F., Mexico;(2) Departamento de Bioquítmica, Facultad de Qmímica, Universidad National Autónoma de Méxco, Apartado Postal 70-600, 04510 México, D.F., Mexico;(3) Instituto de Quimica, Universidad National Autónoma de Méxco, Apartado Postal 70-600, 04510 México, D.F., Mexico |
| Abstract: | 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  M to 1000 M). The H+-ATPase activity was inhibited (48%) by 500 M 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.This study was sponsored by Project PCECCCNA-050954 of Consejo Nacional de Ciencia y Tecnología (CONACyT). |
| Keywords: | Piquerol Piqueria trinervia modes of action allelopathy allelochemicals microsomes Ipomoea purpurea plasmalemma tonoplast germination H+-ATPase proton pumps |
| 本文献已被 SpringerLink 等数据库收录！ | |
