Fusarium solani f. robiniae n. f., one of the causal fusaria of the twig blight of Robinia pseudoacacia

Matuo, Takken; Sakurai, Yoshio

doi:10.3186/jjphytopath.30.31

Cited by 10 publications

(4 citation statements)

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“…spp.) have been described in the species (Snyder and Hansen 1941;Sakurai and Matuo 1959;Matuo and Sakurai 1965;McClure 1951;Sakurai and Matuo 1961;Roy 1997). Of these formae speciales, seven are heterothallic with the common ascomycetous sexual stage of Nectria haematococca Berk.…”

Section: Introductionmentioning

confidence: 99%

Electrophoretic karyotyping and gene mapping of seven formae speciales in Fusarium solani

et al. 2002

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Chromosomal DNAs of 22 strains in 7 formae speciales (f. spp.) of Fusarium solani were compared by pulsed field gel electrophoresis (PFGE) and gene mapping on the chromosomes. Using PFGE, complete separation of the full components of the genome was not attained, due to the limited resolution of large chromosomes, but 5-12 chromosomes with sizes of 0.6-5.7 Mbp were resolvable for every strain. Although each strain had a unique banding profile, similarity in the banding profile was noticed among strains of the same (f. sp.). In gene mapping, the ribosomal RNA gene (rDNA) and putative pathogenesis-related genes encoding kievitone hydratase (khs), pisatin demethylase (pda) and pectate-degrading enzyme (pelA) were located on the chromosomes separated by PFGE. rDNA was always detected on the stacked large bands of 5.2-5.7 Mbp. The khs gene was detected on a chromosome of 2.8-5.4 Mbp in all f. sp. phaseoli strains and one strain of f. sp. pisi. The pda gene was detected on a chromosome of 1.4-5.6 Mbp in f. sp. pisi and pelA was localized on a chromosome of 2.3-2.9 Mbp in f. spp. pisi, xanthoxyli, batatas and mori. The results of PFGE and Southern blot hybridization supported the idea that each f. sp. of F. solani (or mating population of the teleomorph Nectria haematococca) has a distinctive genomic organization, as previously inferred from molecular phylogenetic analyses.

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Section: Introductionmentioning

confidence: 99%

Electrophoretic karyotyping and gene mapping of seven formae speciales in Fusarium solani

et al. 2002

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“…robiniae or N. haematococca MP VII (Matuo & Snyder 1973, O'Donnell et al 2008, this clade encompasses mostly homothallic strains, with the sexual morph abundantly formed on the surface of carnation leaves, getting quickly covered by aerial mycelium. DNA sequence data from two authentic strains (NRRL 22161, 22162) studied in the protologue of F. solani f. robiniae are included here (Matuo & Sakurai 1965). However, in the current circumscription, the species includes not only isolates from Robinia (Fabaceae) but also from plant hosts in the Salicaceae and Magnoliaceae.…”

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confidence: 99%

Back to the roots: a reappraisal of Neocosmospora

2019

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The genus Neocosmospora (Fusarium solani species complex) contains saprobes, plant endophytes and pathogens of major economic significance as well as opportunistic animal pathogens. Advances in biological and phylogenetic species recognition revealed a rich species diversity which has largely remained understudied. Most of the currently recognised species lack formal descriptions and Latin names, while the taxonomic utility of old names is hampered by the lack of nomenclatural type specimens. Therefore, to stabilise the taxonomy and nomenclature of these important taxa, we examined type specimens and representative cultures of several old names by means of morphology and phylogenetic analyses based on rDNA (ITS and LSU), rpb2 and tef1 sequences. Sixty-eight species are accepted in Neocosmospora, 29 of them described herein as new; while 13 new combinations are made. Eleven additional phylogenetic species are recognized, but remain as yet undescribed. Lectotypes are proposed for eight species, seven species are epitypified and two species are neotypified. Notes on an additional 17 doubtful or excluded taxa are provided.

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“…xanthoxyli (Sakurai and Matuo, 1961), and H. solani f. sp. robinae (Matuo and Sakurai, 1965), are also heterothallic in this compatibility sense. But, as stated earlier, H. sofani f. sp.…”

Section: Compatibility Heterothallismmentioning

confidence: 98%

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

Snyder¹,

Georgopoulos²,

Webster³

et al. 1975

Hilg

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The host-specialized pathogen, Fusarium (Hypomyces) solani f. sp. cucurbitae causes rots of the stem, root, and fruit of cucurbits in many places in the world. The fungus is seed-borne, soil-borne, and sometimes airborne. The individual clone is usually hermaphroditic but has been found in nature in a uni-sexual form. Although the Fusarium is heterothallic, rarely are the two mating types (+ and-) found together. When they are mated, the perithecia may be either red, or white, depending upon the genetic constitution. Races, as distinguished by host response, are not interfertile. Mutations of the normal hermaphrodite may give rise to male, female or neuter forms.

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Fusarium solani f. robiniae n. f., one of the causal fusaria of the twig blight of Robinia pseudoacacia

Cited by 10 publications

References 0 publications

Electrophoretic karyotyping and gene mapping of seven formae speciales in Fusarium solani

Electrophoretic karyotyping and gene mapping of seven formae speciales in Fusarium solani

Back to the roots: a reappraisal of Neocosmospora

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

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