Molecular and ultrastructural characterization of two ascomycetes found on sunken wood off Vanuatu Islands in the deep Pacific Ocean |
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| Authors: | Joë lle Dupont,Sandrine Magnin,Florence Rousseau,Magali Zbinden,Ghislaine Frebourg,Sarah Samadi,Bertrand Richer de Forges,E.B. Gareth Jones |
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| Affiliation: | aDépartement Systématique & Evolution-UMR 7205, Muséum national d'histoire naturelle, CP 39, 57 rue Cuvier, 75231 Paris Cedex 05, France;bDépartement Systématique & Evolution-UMR 7138, Muséum national d'histoire naturelle, CP 39, 57 rue Cuvier, 75231 Paris Cedex 05, France;cUMR 7138 “Systématique, Adaptation et Evolution”, Université Pierre et Marie Curie, Case 5, 7 quai Saint Bernard, 75252 Paris Cedex 05, France;dDépartement Systématique & Evolution-UMR 7138, Muséum national d'histoire naturelle, CP 26, 57 rue Cuvier, 75231 Paris Cedex 05, France;eInstitut de Recherche pour le Développement-UMR 7138, BP A5, 98848 Nouméa Cedex, Nouvelle-Calédonie, France;fBIOTEC Central Research Unit, 113 Paholyothin Road, Khlong 1, Khlong Luang, Pathum Thani 12120, Thailand |
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| Abstract: | A new genus of a deep-sea ascomycete with one new species, Alisea longicolla, is described based on analyses of 18S and 28S rDNA sequences and morphological characters. A. longicolla was found together with Oceanitis scuticella, on small twigs and sugar cane debris trawled from the bottom of the Pacific Ocean off Vanuatu Islands. Molecular and morphological characters indicate that both fungi are members of Halosphaeriaceae. Within this family, O. scuticella is phylogenetically related to Ascosalsum and shares similar ascospore morphology and appendage ontogeny. The genus Ascosalsum is considered congeneric with Oceanitis and Ascosalsum cincinnatulum, Ascosalsum unicaudatum and Ascosalsum viscidulum are transferred to Oceanitis, an earlier generic name. |
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| Keywords: | Alisea longicolla Ascomycota Ascosalsum Halosphaeriaceae Molecular systematics Oceanitis scuticella Ultrastructure |
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