Walters D R
Botany and Plant Pathology Department, West of Scotland Agricultural College, Auchincruive, Nr Ayr KA6 5HW, UK.
New Phytol. 1986 Dec;104(4):613-619. doi: 10.1111/j.1469-8137.1986.tb00661.x.
The effects of the polyamine biosynthesis inhibitor, difluoromethylomithine (DFMO), on rust infection of the broad bean have been examined. DFMO was sprayed onto leaves at 0.025, 0.1 and 0.4 mM before and after inoculation. DFMO was also applied to leaf halves in order to examine the possible translocation of the inhibitor to untreated leaf halves (systemic treatment). DFMO gave good control of rust infection, irrespective of the treatment. DFMO applied after inoculation was more effective than a pre-inoculatory treatment when used in non-systemic tests. When used as a systemic treatment on leaf halves, pre-inoculatory application of DFMO was more effective. DFMO did not affect plant growth or endogenous concentrations of poly amines. The possible use of DFMO in the control of a range of plant diseases is discussed.
已研究了多胺生物合成抑制剂二氟甲基鸟氨酸（DFMO）对蚕豆锈病感染的影响。在接种前后，分别以0.025 mM、0.1 mM和0.4 mM的浓度将DFMO喷洒在叶片上。还将DFMO应用于半叶叶片，以检测该抑制剂向未处理半叶叶片的可能转运情况（系统性处理）。无论采用何种处理方式，DFMO对锈病感染均有良好的防治效果。在非系统性试验中，接种后施用DFMO比接种前处理更有效。当作为半叶叶片的系统性处理使用时，接种前施用DFMO更有效。DFMO不影响植物生长或多胺的内源浓度。文中讨论了DFMO在防治一系列植物病害方面的潜在用途。
