Morphology of the Spermogonia of the Rust Fungi

Hiratsuka, Yuichi; Cummins, George B.

doi:10.1080/00275514.1963.12018040

Cited by 74 publications

(49 citation statements)

References 12 publications

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“…The close relationship between fern rusts and coniferous ones may be reflected in the host transfer via the spermogonial and aecial states suggested by LeppJk (1953). Hiratsuka and Cummins (1963) emphasized the significance of spermogonial morphology in rust taxonomy. The morphological types of spermogonia have been considered to be reliable characters for use in suprageneric taxonomy.…”

Section: Resultsmentioning

confidence: 99%

Phylogenetic positions of rust fungi parasitic on ferns: Evidence from 18S rDNA sequence analysis

et al. 1999

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Molecular phylogenetic analyses of fern rusts were carried out based on 18S rDNA sequences. We sequenced the 18S rDNAs of fern rusts (Hyalopsora polypodii and Uredinopsis intermedia) and non-fern rusts (Aecidium epimedii, Coleosporium asterum, Ochropsora kraunhiae, Puccinia suzutake and Physopella ampelopsidis) and analyzed their phylogenetic relationships with other members of the Urediniomycetes. Our bootstrapped neighbor-joining tree obtained from these analyses showed that rust fungi were apparently monophyletic at high confidence level (100% bootstrap confidence). In this molecular phylogenetic tree, the two fern rusts did not occupy the basal position within the rust fungal lineage and did not form a monophyletic lineage. Two species of the Cronartiaceae (Peridermium harknessii, Cronartium ribicola) and one species of the Coleosporiaceae (Coleosporium asterum) grouped with the fern rusts. Therefore, our results suggested that the two fern rusts were not primitive. On the other hand, Mixia osmundae, which is parasitic on the primitive fern Osmunda, was phylogenetically far from the fern rusts.

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Section: Resultsmentioning

confidence: 99%

Phylogenetic positions of rust fungi parasitic on ferns: Evidence from 18S rDNA sequence analysis

et al. 1999

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“…It appears at the top of the leaves as yellow-orange spots, which gradually become larger (5-10 mm). Later spermogonia develop in the middle of the spots, the structure of which conforms to group V (type 4) (Hiratsuka and Hiratsuka, 1980). At the end of summer until leaf fall, dark brown aeciospores (21-27 × 24-30 µm in size) with wall thickness 3-4.5 µm develop in globoid to ellipsoid roestelioid, hypophyllous aecia (0.5-1 mm diameter, 2-5 mm length), (Cummins and Hiratsuka, 2003).…”

Section: European Pear Rust Caused By Gymnospo-rangium Sabinaementioning

confidence: 99%

Gymnosporangium Species – An Important Issue of Plant Protection

Lāce

2017

Proceedings of the Latvian Academy of Sciences. Section B. Natural, Exact, and Applied Sciences.

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“…The structure of the pycnium conformed to type 4 as described by Hiratsuka and Cummins (1963), typical of Puccinia spp. and characterized by determinate growth, subepidermal and strongly convex hymenia, with well developed bounding structures (periphyses).…”

Section: Methodsmentioning

confidence: 99%

Morphology of the rust fungusPuccinia boroniaerevisited

Driessen¹,

O’Brien²,

Hardy

2005

Mycologia

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Puccinia boroniae Henns. is a rust fungus endemic to Australia, infecting various Boronia spp. This study describes and illustrates, using light and scanning electron microscopy, the telial stage, teliospore germination and basidiospore production of specimens collected from commercial Boronia plantations in Western Australia. Unusual formation of a single basidiospore per germinating teliospore, and the pycnial stage, observed on Boronia megastigma leaves, are reported for the first time for P. boroniae.

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Morphology of the Spermogonia of the Rust Fungi

Cited by 74 publications

References 12 publications

Phylogenetic positions of rust fungi parasitic on ferns: Evidence from 18S rDNA sequence analysis

Phylogenetic positions of rust fungi parasitic on ferns: Evidence from 18S rDNA sequence analysis

Gymnosporangium Species – An Important Issue of Plant Protection

Morphology of the rust fungusPuccinia boroniaerevisited

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