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Citation for Study 18465

Citation title: "Two new lineages of aquatic ascomycetes: Atractospora gen. nov. and Rubellisphaeria gen. et sp. nov., and a sexual morph of Myrmecridium montsegurinum sp. nov.".

Study name: "Two new lineages of aquatic ascomycetes: Atractospora gen. nov. and Rubellisphaeria gen. et sp. nov., and a sexual morph of Myrmecridium montsegurinum sp. nov.".

This study is part of submission 18465 (Status: Published).

Citation

R?blov? M., Fournier J., & Stepanek V. 2016. Two new lineages of aquatic ascomycetes: Atractospora gen. nov. and Rubellisphaeria gen. et sp. nov., and a sexual morph of Myrmecridium montsegurinum sp. nov. Mycological Progress, 15: 21.

Authors

• R?blov? M.
• Fournier J.
• Stepanek V.

Abstract

Two new genera, Atractospora and Rubellisphaeria, are described for perithecial ascomycetes occurring on decaying wood submerged in freshwater habitats. Their relationships with other morphologically similar fungi were investigated utilising four nuclear ribosomal and protein-coding loci. They are nested together with members of five orders and families and numerous genera incertae sedis in the Sordariomycetidae in a clade supported by Maximum Likelihood and Bayesian inference methods. Their closest relative is Lentomitella. Atractospora includes species characterised by dark, immersed to semi-immersed beaked ascomata lying horizontally to the host, stipitate asci with a pronounced non-amyloid apical annulus and hyaline, fusiform, septate, thick-walled ascospores with smooth or ornamented wall. Three novel species are introduced (A. decumbens, A. reticulata and A. verruculosa). A new combination for Aquaticola ellipsoidea is proposed in Atractospora based on molecular data and morphological characters. Rubellisphaeria, with a new species R. abscondita, is distinct by subhyaline to reddish brown, immersed ascomata with a lateral neck, short-stipitate asci and ellipsoidal smooth ascospores with a delayed formation of a middle septum. The sexual morph of the dematiaceous hyphomycete genus Myrmecridium was encountered for the first time on decaying wood submerged in a stream. It is nested in a strongly supported monophyletic clade of the Myrmecridiales. The novel species M. montsegurinum is described; it possesses papillate ascomata immersed beneath a clypeus with subhyaline to weakly pigmented ascomatal wall, long-stipitate asci with a non-amyloid apical annulus and 3-septate, hyaline, ellipsoidal, delicately verruculose ascospores. A morphology-based key is provided to facilitate identification of species of Atractospora.

Keywords

Aquaticola, clypeus, freshwater, molecular phylogenetics, Sordariomycetes

External links

• DOI: 10.1007/s11557-016-1166-z

About this resource

• Canonical resource URI: http://purl.org/phylo/treebase/phylows/study/TB2:S18465
• Other versions: Nexus NeXML
• Show BibTeX reference

  		@ARTICLE{TreeBASE2Ref25257,
  	 author = {Martina  R?blov? and Jacques  Fournier and Vaclav  Stepanek},
  	 title = {Two new lineages of aquatic ascomycetes: Atractospora gen. nov. and Rubellisphaeria gen. et sp. nov., and a sexual morph of Myrmecridium montsegurinum sp. nov.},
  	 year = {2016},
  	 keywords = {Aquaticola, clypeus, freshwater, molecular phylogenetics, Sordariomycetes},
  	 doi = {10.1007/s11557-016-1166-z},
  	 url = {http://},
  	 pmid = {},
  	 journal = {Mycological Progress},
  	 volume = {15},
  	 number = {},
  	 pages = {21},
  	 abstract = {Two new genera, Atractospora and Rubellisphaeria, are described for perithecial ascomycetes occurring on decaying wood submerged in freshwater habitats. Their relationships with other morphologically similar fungi were investigated utilising four nuclear ribosomal and protein-coding loci. They are nested together with members of five orders and families and numerous genera incertae sedis in the Sordariomycetidae in a clade supported by Maximum Likelihood and Bayesian inference methods. Their closest relative is Lentomitella. Atractospora includes species characterised by dark, immersed to semi-immersed beaked ascomata lying horizontally to the host, stipitate asci with a pronounced non-amyloid apical annulus and hyaline, fusiform, septate, thick-walled ascospores with smooth or ornamented wall. Three novel species are introduced (A. decumbens, A. reticulata and A. verruculosa). A new combination for Aquaticola ellipsoidea is proposed in Atractospora based on molecular data and morphological characters. Rubellisphaeria, with a new species R. abscondita, is distinct by subhyaline to reddish brown, immersed ascomata with a lateral neck, short-stipitate asci and ellipsoidal smooth ascospores with a delayed formation of a middle septum. The sexual morph of the dematiaceous hyphomycete genus Myrmecridium was encountered for the first time on decaying wood submerged in a stream. It is nested in a strongly supported monophyletic clade of the Myrmecridiales. The novel species M. montsegurinum is described; it possesses papillate ascomata immersed beneath a clypeus with subhyaline to weakly pigmented ascomatal wall, long-stipitate asci with a non-amyloid apical annulus and 3-septate, hyaline, ellipsoidal, delicately verruculose ascospores. A morphology-based key is provided to facilitate identification of species of Atractospora.}
  }
  		

• Show RIS reference

  		TY  - JOUR
  ID  - 25257
  AU  - R?blov?,Martina 
  AU  - Fournier,Jacques 
  AU  - Stepanek,Vaclav 
  T1  - Two new lineages of aquatic ascomycetes: Atractospora gen. nov. and Rubellisphaeria gen. et sp. nov., and a sexual morph of Myrmecridium montsegurinum sp. nov.
  PY  - 2016
  KW  - Aquaticola
  KW  - clypeus
  KW  - freshwater
  KW  - molecular phylogenetics
  KW  - Sordariomycetes
  UR  - http://dx.doi.org/10.1007/s11557-016-1166-z
  N2  - Two new genera, Atractospora and Rubellisphaeria, are described for perithecial ascomycetes occurring on decaying wood submerged in freshwater habitats. Their relationships with other morphologically similar fungi were investigated utilising four nuclear ribosomal and protein-coding loci. They are nested together with members of five orders and families and numerous genera incertae sedis in the Sordariomycetidae in a clade supported by Maximum Likelihood and Bayesian inference methods. Their closest relative is Lentomitella. Atractospora includes species characterised by dark, immersed to semi-immersed beaked ascomata lying horizontally to the host, stipitate asci with a pronounced non-amyloid apical annulus and hyaline, fusiform, septate, thick-walled ascospores with smooth or ornamented wall. Three novel species are introduced (A. decumbens, A. reticulata and A. verruculosa). A new combination for Aquaticola ellipsoidea is proposed in Atractospora based on molecular data and morphological characters. Rubellisphaeria, with a new species R. abscondita, is distinct by subhyaline to reddish brown, immersed ascomata with a lateral neck, short-stipitate asci and ellipsoidal smooth ascospores with a delayed formation of a middle septum. The sexual morph of the dematiaceous hyphomycete genus Myrmecridium was encountered for the first time on decaying wood submerged in a stream. It is nested in a strongly supported monophyletic clade of the Myrmecridiales. The novel species M. montsegurinum is described; it possesses papillate ascomata immersed beneath a clypeus with subhyaline to weakly pigmented ascomatal wall, long-stipitate asci with a non-amyloid apical annulus and 3-septate, hyaline, ellipsoidal, delicately verruculose ascospores. A morphology-based key is provided to facilitate identification of species of Atractospora.
  L3  - 10.1007/s11557-016-1166-z
  JF  - Mycological Progress
  VL  - 15
  IS  - 
  ER  -