Escovopsis trichodermoides sp. nov., isolated from a nest of the lower attine ant Mycocepurus goeldii

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• 作者：Virginia E. Masiulionis (1)
  Marta N. Cabello (2)
  Keith A. Seifert (3)
  Andre Rodrigues (1) (4)
  Fernando C. Pagnocca (1) (4)
  
  1. Centro de Estudos de Insetos Sociais ; Instituto de Bioci锚ncias ; UNESP 鈥?Univ Estadual Paulista ; Campus de Rio Claro ; Rio Claro ; SP ; 13506-900 ; Brazil
  2. Comisi贸n de Investigaciones Cient铆ficas ; Facultad de Ciencias Naturales y Museo ; Instituto de Bot谩nica Carlos Spegazzini ; Universidad Nacional de La Plata ; La Plata ; Buenos Aires ; Argentina
  3. Biodiversity (Mycology) ; Eastern Cereal and Oilseed Research Centre ; Agriculture & Agri-Food Canada ; Ottawa ; ON ; K1A 0C6 ; Canada
  4. Departamento de Bioqu铆mica e Microbiologia ; Instituto de Bioci锚ncias ; UNESP 鈥?Univ Estadual Paulista ; Campus de Rio Claro ; Rio Claro ; SP ; 13506-900 ; Brazil
  
• 关键词：Attini ; Fungus ; growing ant ; Hypocreales ; Mycoparasitism
• 刊名：Antonie van Leeuwenhoek
• 出版年：2015
• 出版时间：March 2015
• 年：2015
• 卷：107
• 期：3
• 页码：731-740
• 全文大小：1,451 KB
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• 刊物类别：Biomedical and Life Sciences
• 刊物主题：Life Sciences
  Microbiology
  Medical Microbiology
  Plant Sciences
  Soil Science and Conservation
  
• 出版者：Springer Netherlands
• ISSN：1572-9699

文摘

Currently, five species are formally described in Escovopsis, a specialized mycoparasitic genus of fungus gardens of attine ants (Hymenoptera: Formicidae: tribe Attini). Four species were isolated from leaf-cutting ants in Brazil, including Escovopsis moelleri and Escovopsis microspora from nests of Acromyrmex subterraneus molestans, Escovopsis weberi from a nest of Atta sp. and Escovopsis lentecrescens from a nest of Acromyrmex subterraneus subterraneus. The fifth species, Escovopsis aspergilloides was isolated from a nest of the higher attine ant Trachymyrmex ruthae from Trinidad. Here, we describe a new species, Escovopsis trichodermoides isolated from a fungus garden of the lower attine ant Mycocepurus goeldii, which differs from the five other species by highly branched, trichoderma-like conidiophores lacking swollen vesicles, with reduced conidiogenous cells and distinctive conidia morphology. Phylogenetic analyses based on partial tef1 gene sequences support the distinctiveness of this species. A portion of the internal transcribed spacers of the nuclear rDNA was sequenced to serve as a DNA barcode. Future molecular and morphological studies in this group of fungi will certainly unravel the taxonomic diversity of Escovopsis associated with fungus-growing ants.