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Increasing the efficacy of difluoromethylornithine to inhibit the growth of three phytopathogenic fungi by membrane modifying agents

机译:通过膜修饰剂提高二氟甲基鸟氨酸对三种植物病原真菌生长的抑制作用

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The selective inhibition of fungal polyamine biosynthesis using difluoromethylornithine (DFMO) has been a promising approach for plant chemotherapy. However, some plant pathogenic fungi have been found to be resistant to high concentrations of DFMO. Therefore, an attempt was made to increase the efficacy of DFMO to inhibit the growth of three phytopathogenic fungi (Pythium aphanidermatum, Helminthosporium oryzae and Rhizoctonia solani) by using CaCl2 and polyethylene glycol (PEG). The growth inhibition was increased by 12-30% for all the fungi tested with adjuvant concentrations in a selected range (5 mM CaCl2 and 5% PEG), which were otherwise not inhibitory for normal growth of fungi. These results suggest that the effective control of plant pathogenic fungi mag be achieved by the use of DFMO in conjunction with CaCl2 or PEG. [References: 25]
机译:使用二氟甲基鸟氨酸(DFMO)选择性抑制真菌多胺生物合成已成为植物化学疗法的有前途的方法。然而,已经发现一些植物病原真菌对高浓度的DFMO具有抗性。因此,试图通过使用CaCl 2和聚乙二醇(PEG)来增加DFMO抑制三种植物病原真菌(腐霉腐霉,稻瘟病菌和米根霉)生长的功效。对于在选定范围内(5 mM CaCl2和5%PEG)的佐剂浓度测试的所有真菌,其生长抑制均增加了12-30%,否则不能抑制真菌的正常生长。这些结果表明,通过将DFMO与CaCl 2或PEG结合使用,可以有效地控制植物病原真菌。 [参考:25]

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