Ultrastructure of Ceratocystis ulmi.1 II. Ascogenous system and ascosporogenesis

Jeng, R. S.; Hubbes, M.

doi:10.1111/j.1439-0329.1980.tb00015.x

Cited by 11 publications

(1 citation statement)

References 34 publications

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“…The inference here was that crozier formation does not occur in Ceratocystis s.I. In contrast, crozier formation was illustrated in ultrastructural studies o f O. ulmi (Jeng & Hubbes 1980b). Ascogonia were observed in all species (Table 2), although some authors described the ascogonium as either a fertile cell in O. multi annulatum (Andrus & Harter 1933) or ascogenous hyphae in O. piceae (Bakshi 1951) and O. ips (Taylor-Vinje 1940).…”

Section: Cytologymentioning

confidence: 62%

Ascospore development in Ceratocystis sensu lato (Fungi): a review

Wyk

Wingfield

1990

Bothalia

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Ceratocystis. Ceratocxstiopsis and Ophiostoma are important pathogens of trees and some agricultural crops and have recently been found on proteas and forest trees in South Africa. Taxonomic controversy exists regarding these genera and ultrastructural studies on the development of asci, uniquely shaped ascospores and centrum structure are inadequate. This rev iew summarises current knowledge of ascospore shape and development of the centrum obtained from light and electron microscope studies of Cemtocystis sensu lato. Important questions requiring further investigations are outlined. It is furthermore proposed that additional ultrastructural studies are required to clarify the current taxonomic disagreement in this group. Such studies could also identify relationships between these fungi and other Ascomycetes.

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Section: Cytologymentioning

confidence: 62%