Sexual morph of Alternaria scirpivora (Alternaria section Nimbya) from Iran

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Alavi Zahra; Ahmadpour Abdollah; Ghosta Youbert

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Journal Paper

Paper Information

Journal: MYCOLOGIA IRANICA Year:2024 | Volume:11 | Issue:2 Page(s): 73-81

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Title

Sexual morph of Alternaria scirpivora (Alternaria section Nimbya) from Iran

Author(s)

Alavi Zahra | Ahmadpour Abdollah | Ghosta Youbert | Issue Writer Certificate

Keywords

Ascomata

Ascospore

Morphology

Molecular Phylogeny

Nimbya species

Abstract

Species of the Alternaria section Nimbya are plant pathogens or saprophytes associated mainly with the plants in the Cyperaceae and Juncaceae families. Until now, five species from this section have been reported in Iran, but their sexual morphs have not been identified. In the present study, the sexual morph of Alternaria scirpivora was induced under laboratory conditions on PCA medium containing autoclave sterilized culms of Scirpus acutus incubated at 23–25 ºC for 90 days. Mature ascomata were formed after 2–3 months, containing asci and ascospores. The morphological characteristics of the sexual and asexual morphs are described and the phylogenetic relationships of A. scirpivora with closely related species are discussed. This is the first report of the sexual stage of this species in Iran and Asia.

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