| fungal pathogens of oat roots and tomato leaves employ closely related enzymes to detoxify different host plant saponins. | antifungal saponins are produced by many plants and have been implicated as preformed determinants of resistance to fungal attack. the importance of saponin detoxification in fungal pathogenesis has recently been demonstrated for the fungus gaeumannomyces graminis var. avenae, which produces the enzyme avenacinase. avenacinase detoxifies the triterpenoid oat root saponin avenacin a-1, and is essential for pathogenicity of g. graminis var.avenae to oats. here we demonstrate an unexpected relatedn ... | 1995 | 8664505 |
| detoxification of benzoxazolinone allelochemicals from wheat by gaeumannomyces graminis var. tritici, g. graminis var. graminis, g. graminis var. avenae, and fusarium culmorum. | the ability of phytopathogenic fungi to overcome the chemical defense barriers of their host plants is of great importance for fungal pathogenicity. we studied the role of cyclic hydroxamic acids and their related benzoxazolinones in plant interactions with pathogenic fungi. we identified species-dependent differences in the abilities of gaeumannomyces graminis var. tritici, gaeumannomyces graminis var. graminis, gaeumannomyces graminis var. avenae, and fusarium culmorum to detoxify these allelo ... | 1998 | 9647804 |