Sexuality and genetic behavior in the fungus<i>Hypomyces (Fusarium) solani</i>f. sp.<i>cucurbitae</i>

Snyder, William C.; Georgopoulos, S. G.; Webster, R. K.; Smith, Samantha J.

doi:10.3733/hilg.v43n06p161

Cited by 31 publications

(13 citation statements)

References 56 publications

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“…Some suppressive mutations restored both wild-type colour and normal fertility at the same time. Snyder et al (1975) also obtained a mutation (stp-4) in Hypomyces solani f. sp. cucurbitae preventing protoperithecia formation and determining the diffusion of large amounts of dark pigments in the agar medium.…”

Section: Discussionmentioning

confidence: 95%

Genetic and Epigenetic Factors Involved in the Excretion of Naphthoquinone Pigments into the Culture Medium by Nectria haematococca

Parisot¹,

Maugin²,

Gerlinger³

1981

Microbiology

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443The production by the fungus Nectria haematococca of antibiotic pigments related to fusarubin can be increased by (i) culture conditions unfavourable for good growth, (ii) multiplication of two cytoplasmic factors of unknown molecular nature, and (iii) mutation of nuclear genes. Six nuclear genes involved in the regulation of naphthoquinone release have been characterized and mapped. Some have three allelic forms: the wild allele, one or several mutated alleles determining the hyperproduction of pigments, and one or several intragenic suppressors of the latter mutations. These genes also seem to be involved in developmental events, especially in sexual reproduction.

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Section: Discussionmentioning

confidence: 95%

Genetic and Epigenetic Factors Involved in the Excretion of Naphthoquinone Pigments into the Culture Medium by Nectria haematococca

Parisot¹,

Maugin²,

Gerlinger³

1981

Microbiology

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“…The epidemiology of the disease caused by FSSC 1 in plants is also poorly understood; publications on FSSC 1 in plants focus on differences between the disease caused by it and FSSC 10 (Toussoun and Snyder, 1961; Snyder et al ., 1975; Hawthorne et al ., 1992; 1994) and not its epidemiology. It is unclear if there is a connection between the life cycle of FSSC 1 in plants and in humans.…”

Section: Discussionmentioning

confidence: 99%

Fusarium solani species complex isolates conspecific with Fusarium solani f. sp. cucurbitae race 2 from naturally infected human and plant tissue and environmental sources are equally virulent on plants, grow at 37°C and are interfertile

Mehl

Epstein

2007

Environmental Microbiology

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In a previous taxonomic study based on multilocus sequencing of Fusarium from clinical specimens and hospital environments, the most common lineage was Fusarium solani species complex group 1 (FSSC 1) which is conspecific with F. solani f. sp. cucurbitae race 2, a pathogen of cucurbit fruits. The aims of our study were to determine if clinical and environmental isolates of FSSC 1 are plant pathogens and members of the same biological species as cucurbit isolates, and to determine if all isolates can germinate, grow and sporulate at 37 degrees C. Isolates from the different sources did not differ in virulence on zucchini fruits. All FSSC 1 isolates were pathogenic and produced more rot than FSSC isolates from plant hosts other than cucurbits. Both mating types were found among isolates from each of the sources, and all isolates were sexually compatible with cucurbit isolates. All isolates germinated, grew and sporulated at 37 degrees C. This is the first report in which plant pathogenicity has been verified for a collection of human clinical isolates. Our data are consistent with the hypothesis that all FSSC 1 isolates, regardless of source, are a single biological species, equally virulent plant pathogens and tolerant of the human body temperature.

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“…cucurbitae W. C. Snyder & H. N. Hans ( Fsc ) is the causal agent of Fusarium crown and foot rot disease of cucurbits (Tousson and Snyder, 1961). This pathogen was first reported on squash ( Cucurbita pepo L.) in 1930 in South Africa and subsequently reported in United States, Europe, Australia, New Zealand and Japan (Snyder et al., 1975; Sherf and MacNab, 1986; Hawthorne et al., 1992; Champaco et al., 1993; Nagao et al., 1994; Armengol et al., 2000).…”

Section: Introductionmentioning

confidence: 99%

“…& Broome, has been described for both races. Strains of race 1 belong to mating population I, and strains of race 2 belong to mating population V (Snyder et al., 1975).…”

Section: Introductionmentioning

confidence: 99%

Detection of Races 1 and 2 of Fusarium solani f. sp. cucurbitae and their Distribution in Watermelon Fields in Tunisia

Boughalleb¹,

Armengol²,

Mahjoub³

2005

Journal of Phytopathology

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A crown, foot and fruit rot of watermelon has been observed in most of the watermelon production areas in Tunisia. A survey conducted from 2000 to 2001 allowed the isolation of 291 isolates which were identified as Fusarium solani. These isolates were identified as F. solani f. sp. cucurbitae (Fsc) and races 1 and 2 characterized on the basis of pathogenicity tests on watermelon seedlings and muskmelon fruits. These results were confirmed by counts of the number of septa in the macroconidia. About 271 isolates were identified as Fsc race 1, 12 isolates were identified as Fsc race 2 and eight isolates were not pathogenic. Race 1 is widely distributed in watermelon production areas in Tunisia and race 2 has a lower incidence but it is present in the north, the middle and southern Tunisian watermelon cropping areas. Additionally, a study to compare the virulence of 122 isolates of Fsc race 1 showed different degrees of virulence among them. This is the first report of Fsc races 1 and 2 in Tunisia.

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Sexuality and genetic behavior in the fungusHypomyces (Fusarium) solanif. sp.cucurbitae

Cited by 31 publications

References 56 publications

Genetic and Epigenetic Factors Involved in the Excretion of Naphthoquinone Pigments into the Culture Medium by Nectria haematococca

Genetic and Epigenetic Factors Involved in the Excretion of Naphthoquinone Pigments into the Culture Medium by Nectria haematococca

Fusarium solani species complex isolates conspecific with Fusarium solani f. sp. cucurbitae race 2 from naturally infected human and plant tissue and environmental sources are equally virulent on plants, grow at 37°C and are interfertile

Detection of Races 1 and 2 of Fusarium solani f. sp. cucurbitae and their Distribution in Watermelon Fields in Tunisia

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