Use of Nitrate-Nonutilizing Mutants in Ecological Studies of Fusarium Diseases. I. Formation of nit Mutants from Some Formae Speciales of Fusarium oxysporum.
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چکیده
منابع مشابه
Endopolygalacturonase PG1 in Different Formae Speciales of Fusarium oxysporum
PG1, the major endopolygalacturonase of the vascular wilt pathogen Fusarium oxysporum, was secreted during growth on pectin by 10 of 12 isolates belonging to seven formae speciales, as determined with isoelectric focusing zymograms and sodium dodecyl sulfate-polyacrylamide gel electrophoresis gels. A Southern analysis of genomic DNA and PCR performed with gene-specific primers revealed that the...
متن کاملEffector profiles distinguish formae speciales of Fusarium oxysporum.
Formae speciales (ff.spp.) of the fungus Fusarium oxysporum are often polyphyletic within the species complex, making it impossible to identify them on the basis of conserved genes. However, sequences that determine host-specific pathogenicity may be expected to be similar between strains within the same forma specialis. Whole genome sequencing was performed on strains from five different ff.sp...
متن کاملCurrent status of the taxonomic position of Fusarium oxysporum formae specialis cubense within the Fusarium oxysporum complex.
Fusarium oxysporum is an asexual fungal species that includes human and animal pathogens and a diverse range of nonpathogens. Pathogenic and nonpathogenic strains of this species can be distinguished from each other with pathogenicity tests, but not with morphological analysis or sexual compatibility studies. Substantial genetic diversity among isolates has led to the realization that F. oxyspo...
متن کاملNitrate reduction mutants of fusarium moniliforme (gibberella fujikuroi).
Twelve strains of Fusarium moniliforme were examined for their ability to sector spontaneously on toxic chlorate medium. All strains sectored frequently; 91% of over 1200 colonies examined formed chlorate-resistant, mutant sectors. Most of these mutants had lesions in the nitrate reduction pathway and were unable to utilize nitrate (nit mutants). nit mutations occurred in seven loci: a structur...
متن کاملVEGETATIVE COMPATIBILITY OF FUSARIUM OxYSPORUM ISOLATED FROM WEEDS IN EASTERN CROATIA
Different formae speciales of Fusarium oxysporum are the main causal agent of Fusarium wilts. In 2008 and 2009 we collected F. oxysporum samples from symptomless Abutilon theophrasti, xanthium strumarium, Chenopodium album, Matricaria perforata, Ambrosia artemisiifolia, Polygonum lapathifolium, Sonchus arvensis, Amaranthus blitoides, Amaranthus retroflexus, Datura stramonium, Sorghum halepense ...
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ژورنال
عنوان ژورنال: Japanese Journal of Phytopathology
سال: 1994
ISSN: 1882-0484,0031-9473
DOI: 10.3186/jjphytopath.60.699