PARASEXUAL RECOMBINATION BETWEEN VEGETATIVELY INCOMPATIBLE STRAINS IN FUSARIUM-OXYSPORUM

被引：35

作者：

MOLNAR, A

SULYOK, L

HORNOK, L

机构：

[1] Department of Plant Pathology, Plant Protection Institute, Hungarian Academy of Sciences, Budapest, 1525

来源：

MYCOLOGICAL RESEARCH | 1990年 / 94卷

关键词：

Forma specialis; Fusarium oxysporum; Hyphal anastomosis; Parasexual recombination; Protoplast fusion; Race; Vegetative incompatibility;

D O I：

10.1016/S0953-7562(09)80364-X

中图分类号：

Q93 [微生物学];

学科分类号：

071005 ; 100705 ;

摘要：

The genetical inter-relationship among strains, races, and formae speciales of Fusarium oxysporurn was investigated. Nitrate-non-utilizing mutants of the strains tested were unable to form heterokaryons, i.e. they belonged to different vegetative compatibility groups. When complementary auxotrophic and benomyl-resistant mutants of these vegetatively incompatible strains were paired by hyphal anastomosis, stable genetical recombinants (hybrids) were obtained in interstrain and interforma combinations. By means of protoplast fusion, stable prototrophic hybrids capable of normal growth on minimal medium were obtained in all possible infraspecific parental combinations. These experiments produced evidence of parasexual recombination between vegetatively incompatible strains of F. oxysporum. © 1990, British Mycological Society. All rights reserved.

引用

页码：393 / 398

页数：6

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