| hypotensive effects on spontaneously hypertensive rats and antifungal activity on various species of fusarium oxysporum of diethylstilbestrol-related compounds. | the diethylstilbestrol-related compounds 3,3'-dihydroxy-alpha, beta-diethyldiphenylethane (i), diethylstilbestrol (ii) and hexestrol (iii) showed hypotensive effects on spontaneously hypertensive rats (shr) and antifungal activities against all fusarium oxysporum sp. tested. as previously reported, i had strong hypotensive action on normotensive rats at the dose of 10 mg/kg, while ii and iii showed weak hypotensive effects on these rats at the same dose. in this work, all three compounds also ha ... | 1990 | 2176575 |
| systemic resistance in arabidopsis induced by biocontrol bacteria is independent of salicylic acid accumulation and pathogenesis-related gene expression. | systemic acquired resistance is a pathogen-inducible defense mechanism in plants. the resistant state is dependent on endogenous accumulation of salicylic acid (sa) and is characterized by the activation of genes encoding pathogenesis-related (pr) proteins. recently, selected nonpathogenic, root-colonizing biocontrol bacteria have been shown to trigger a systemic resistance response as well. to study the molecular basis underlying this type of systemic resistance, we developed an arabidopsis-bas ... | 1996 | 8776893 |
| differential induction of systemic resistance in arabidopsis by biocontrol bacteria. | selected nonpathogenic, root-colonizing bacteria are able to elicit induced systemic resistance (isr) in plants. to elucidate the molecular mechanisms underlying this type of systemic resistance, an arabidopsis-based model system was developed in which pseudomonas syringae pv. tomato and fusarium oxysporum f. sp. raphani were used as challenging pathogens. in arabidopsis thaliana ecotypes columbia and landsberg erecta, colonization of the rhizosphere by p. fluorescens strain wcs417r induced syst ... | 1997 | 9245833 |
| hybridization and breeding of the benomyl resistant mutant, trichoderma harziantum antagonized to phytopathogenic fungi by protoplast fusion. | a diploid strain obtained from heterokaryons of trichoderma harzianum by protoplast fusion grew on minimal medium containing 100ppm benomyl. this strain inhibited the growth of the phytopathogenic fungus fusarium oxysporum f. sp. raphani on paired cultures and also protected against radish yellows and a drop in germination induced by f. oxysporum f. sp. raphani. | 2000 | 10830500 |
| alteration of substrate specificity of fructosyl-amino acid oxidase from fusarium oxysporum. | fructosyl-amino acid oxidase (fod-f) from fusarium oxysporum f. sp. raphani (nbrc 9972) is the enzyme catalyzing the oxidative deglycation of fructosyl-amino acids such as n(epsilon)-fructosyl n(alpha)-benzyloxycarbonyl-lysine (fzk) and fructosyl valine (fv), which are model compounds of the glycated proteins in blood. wild-type fod-f has high activities toward both substrates. we obtained a mutant fod-f, which reacts with fzk but not with fv by random mutagenesis. one amino-acid substitution (k ... | 2007 | 17160532 |
| genetic and functional diversity among the antagonistic potential fluorescent pseudomonads isolated from tea rhizosphere. | twenty-five fluorescent pseudomonads from rhizospheric soil of six tea gardens in four district of upper assam, india were isolated and screened for antagonistic activity against fungal pathogens such as fusarium oxysporum f. sp. raphani (for), fusarium oxysporum f. sp. ciceri (foc), fusarium semitectum (fs), and rhizoctonia solani (rs); and bacterial pathogens-staphylococcus aureus (sa), escherichia coli (ec), and klebsiella pneumoniae (kp). most of the isolates exhibited strong antagonistic ac ... | 2011 | 20689953 |
| effect of polyacetylenic acids from prunella vulgaris on various plant pathogens. | this study is aiming at characterizing antifungal substances from the methanol extract of prunella vulgaris and at investigating those substances' antifungal and antioomycete activities against various plant pathogens. | 2010 | 20849392 |
| the arabidopsis thaliana dna-binding protein ahl19 mediates verticillium wilt resistance. | verticillium spp. are destructive soilborne fungal pathogens that cause vascular wilt diseases in a wide range of plant species. verticillium wilts are particularly notorious, and genetic resistance in crop plants is the most favorable means of disease control. in a gain-of-function screen using an activation-tagged arabidopsis mutant collection, we identified four mutants, a1 to a4, which displayed enhanced resistance toward the vascular wilt species verticillium dahliae, v. albo-atrum and v. l ... | 2011 | 21864046 |