ELECTROPHORETIC KARYOTYPE DIFFERENCES BETWEEN 2 SUBSPECIES OF FUSARIUM-ACUMINATUM

被引：17

作者：

NAGY, R

HORNOK, L

机构：

来源：

MYCOLOGIA | 1994年 / 86卷 / 02期

关键词：

FUSARIUM-ACUMINATUM; MOLECULAR KARYOTYPE; PHYLOGENETIC RELATIONSHIPS; SUBSPECIES; TRICHOTHECENES;

D O I：

10.2307/3760637

中图分类号：

Q93 [微生物学];

学科分类号：

071005 ; 100705 ;

摘要：

Fusarium acuminatum subsp. acuminatum and F. acuminatum subsp. armeniacum were subjected to comparative karyotype analysis. Differences in chromosome numbers and sizes were observed between the two taxa. When the karyotypes were probed with the trichodiene synthase gene Tox5, hybridization signals occurred only in strains of F. acuminatum subsp. armeniacum, indicating that this subspecies has the genetic potential to produce trichothecene type mycotoxins, while F. acuminatum subsp. acuminatum is genetically incapable of synthesizing these compounds. Molecular karyotypes of F. acuminatum subsp. armeniacum strains were very similar to those of F. sporotrichioides isolates suggesting a strong phylogenetic relationship between the two fungi.

引用

页码：203 / 208

页数：6

共 37 条

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