Molecular and ultrastructural characterization of two ascomycetes found on sunken wood off Vanuatu Islands in the deep Pacific Ocean

Mycological research Pub Date : 2009-12-01 DOI:10.1016/j.mycres.2009.08.015

Joëlle Dupont , Sandrine Magnin , Florence Rousseau , Magali Zbinden , Ghislaine Frebourg , Sarah Samadi , Bertrand Richer de Forges , E.B. Gareth Jones

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引用次数: 39

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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太平洋深处瓦努阿图群岛沉没木材上发现的两种子囊菌的分子和超微结构特征

根据18S和28S rDNA序列和形态特征分析，描述了一种深海子囊菌新属及一新种Alisea longicolla。在瓦努阿图群岛附近的太平洋底部，在小树枝和甘蔗残骸上发现了A. longicolla和Oceanitis scuticella。分子和形态特征表明这两种真菌都属于盐球菌科。在这个科中，O. scuticella在系统发育上与子囊孢子相关，并且具有相似的子囊孢子形态和附属物个体发育。ascosalum属被认为与Oceanitis和ascosalum cinnatulum同属，unicaudatum ascosalum和ascosalum visidulum被转移到Oceanitis，这是一个较早的属名。

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Mycological research

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