Skip to main content
SpringerLink
Log in

Occultocarpon, a new monotypic genus of Gnomoniaceae on Alnus nepalensis from China

  • Published:
Fungal Diversity Aims and scope Submit manuscript

Abstract

Microfungi in the Gnomoniaceae (Diaporthales, Ascomycetes) comprise species commonly reported as pathogens and endophytes on trees and herbaceous hosts primarily from temperate forests of North America, Europe, and Japan. The diversity of Gnomoniaceae in China is poorly known, although several plant families that occur there specifically the Betulaceae are considered important hosts. An exploratory trip to Yunnan, China, resulted in the discovery of several members of the Gnomoniaceae. In this paper a new monotypic genus, Occultocarpon and its species, O. ailaoshanense, are described and illustrated. A phylogeny based on three genes (LSU, rpb2, tef1-α) reveals that O. ailaoshanense belongs to the Gnomoniaceae and forms a branch distinct from the currently known genera. Occultocarpon ailaoshanense is characterized by perithecia with thin, central to eccentric necks in groups embedded in a stroma and oblong elliptical-elongated, one-septate ascospores. Occultocarpon ailaoshanense occurs on the bark of branches of Alnus nepalensis (Betulaceae) in Yunnan, China.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Fig. 1
Fig. 2

Similar content being viewed by others

References

  • Barr ME (1978) The Diaporthales in North America with emphasis on Gnomonia and its segregates. Mycol Mem 7:1–232

    Google Scholar 

  • Carbone I, Kohn LM (1999) A method for designing primer sets for speciation studies in filamentous ascomycetes. Mycologia 91:553–556

    Article  CAS  Google Scholar 

  • Castlebury LA, Rossman AY, Jaklitsch WJ, Vasilyeva LN (2002) A preliminary overview of the Diaporthales based on large subunit nuclear ribosomal DNA sequences. Mycologia 94:1017–1031

    Article  PubMed  CAS  Google Scholar 

  • Chen ZD, Manchester SR, Sun HY (1999) Phylogeny and evolution of the Betulaceae as inferred from DNA sequences, morphology and paleobotany. Am J Bot 86:1168–1181

    Article  PubMed  CAS  Google Scholar 

  • Eriksson OE, Yue JZ (1988) The Pyrenomycetes of China, an annotated checklist. University of Umea, Sweden, p 88

    Google Scholar 

  • Fang CFZF, Zhao SD, Skvortsov AK (1999) Salicaceae. In: Wu ZY, Raven PH (eds) Flora of China 4:139–274. Science Press (Beijing) and Missouri Botanical Garden Press (St. Louis)

  • Felsenstein J (1985) Confidence limits on phylogenies: an approach using the bootstrap. Evolution 39:783–791

    Article  Google Scholar 

  • Huang CJ, Zhang YT, Bartholomew B (1999) Fagaceae. In: Wu ZY, Raven PH (eds) Flora of China 4:314–400. Science Press (Beijing) and Missouri Botanical Garden Press (St. Louis)

  • Huelsenbeck JP, Ronquist F (2001) MRBAYES: Bayesian inference of phylogeny. Bioinformatics 17:754–755

    Article  PubMed  CAS  Google Scholar 

  • Li PQ, Skvortsov AK (1999) Betulaceae. In: Wu ZY, Raven PH (eds) Flora of China 4: 286–313. Science Press (Beijing) and Missouri Botanical Garden Press (St. Louis)

  • Liu YL, Whelen S, Hall BD (1999) Phylogenetic relationships among ascomycetes: evidence from an RNA polymerase II subunit. Mol Biol Evol 16:1799–1808

    Google Scholar 

  • Lu AM, Stone DE, Grauke LJ (1999) Juglandaceae. In: Wu ZY, Raven, PH (eds) Flora of China 4:277–285. Science Press (Beijing) and Missouri Botanical Garden Press (St. Louis)

  • Mejía LC, Castlebury LA, Rossman AY, Sogonov MV, White JF (2008) Phylogenetic placement and taxonomic review of the genus Cryptosporella and its synonyms Ophiovalsa and Winterella (Gnomoniaceae, Diaporthales). Mycol Res 112:23–35

    Article  PubMed  Google Scholar 

  • Mejía LC, Rossman AY, Castlebury LA, White JF (2011a) New species, phylogeny, host-associations, and geographic distribution of genus Cryptosporella (Gnomoniaceae, Diaporthales). Mycologia 103:379–399

    Article  PubMed  Google Scholar 

  • Mejía LC, Castlebury LA, Rossman AY, Sogonov MV, White JF (2011b) A systematic account of the genus Plagiostoma (Gnomoniaceae, Diaporthales) based on morphology, host-associations, and a four-gene phylogeny. Stud Mycol 68:211–235

    Article  PubMed  Google Scholar 

  • Monod M (1983) Monographie taxonomique des Gnomoniaceae. Beihefte zur Sydowia. Ann Mycol Ser 2(9):1–315

    Google Scholar 

  • Myers N, Mittermeier RA, Mittermeier CG, da Fonseca GAB, Kent J (2000) Biodiversity hotspots for conservation priorities. Nature 403:853–858

    Article  PubMed  CAS  Google Scholar 

  • Nylander JAA (2004) MrModeltestv2. Program distributed by the author. Evolutionary Biology Centre, Uppsala University

  • Rehner SA (2001). EF1 alpha primers. Available online at http://ocid.nacse.org/research/deephyphae/EF1primer.pdf

  • Sogonov MV, Castlebury LA, Rossman AY, Mejía LC, White JF (2008) Leaf inhabiting genera of Gnomoniaceae (Diaporthales). Stud Mycol 62:1–79

    Article  PubMed  CAS  Google Scholar 

  • Swofford DL (2002) PAUP*. Phylogenetic Analysis Using Parsimony (*and Other Methods). Version 4.0b10. Sinauer Associates, Sunderland

    Google Scholar 

  • Tai FL (1937). A list of fungi hitherto known from China. Part 2, Ascomycetes. Reprinted from the Science Reports of National Tsing Hua University Ser B, 2:191–239

  • Tai FL (1979) Sylloge fungorum sinicorum. Science Press, Academia Sinica, Peking (Beijing)

    Google Scholar 

  • Teng SC (1996) In: Korf RP (ed) Fungi of China. Mycotaxon, LTD, Ithaca, p 586

    Google Scholar 

  • Walker DM, Castlebury LA, Rossman AY, Sogonov MV, White JF (2010) Systematics of genus Gnomoniopsis (Gnomoniaceae, Diaporthales) based on a three gene phylogeny, host associations and morphology. Mycologia 102:1479–1496

    Article  PubMed  Google Scholar 

  • Xu JC, Wilkes A (2004) Biodiversity impact analysis in Northwest Yunnan, Southwest China. Biodiversity Conserv 13:959–983

    Article  Google Scholar 

Download references

Acknowledgement

This work was funded by the National Science Foundation Partnerships for Enhancing Expertise in Taxonomy (NSF 03–28364). Additional funding for field work by LCM was received through Rutgers University, New Brunswick, New Jersey, from the Spencer Davis Research Award from the Department of Plant Biology and Pathology, and from the Myron Backus Award from the Mycological Society of America. ZLY was supported by the Hundred Talents Program of the Chinese Academy of Sciences. Christian Feuillet kindly provided translations of the diagnoses into Latin.

Author information

Author notes

  1. Luis C. Mejía

    Present address: Smithsonian Tropical Research Institute, Apartado, 0843-03092, Balboa, Ancon, Republic of Panama

Authors and Affiliations

  1. USDA, Agricultural Research Service, Systematic Mycology & Microbiology Laboratory, B010A, 10300 Baltimore Ave., Beltsville, MD, 20705, USA

    Luis C. Mejía, Amy Y. Rossman & Lisa A. Castlebury

  2. Department of Plant Biology and Pathology, Rutgers University, New Brunswick, NJ, 08901, USA

    Luis C. Mejía & James F. White Jr.

  3. Key Laboratory of Biodiversity and Biogeography, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650204, Yunnan Province, People’s Republic of China

    Zhu L. Yang

Authors
  1. Luis C. Mejía
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Amy Y. Rossman
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Lisa A. Castlebury
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. Zhu L. Yang
    View author publications

    You can also search for this author in PubMed Google Scholar

  5. James F. White Jr.
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Luis C. Mejía.

Additional information

Mention of trade names or commercial products in this publication is solely for the purpose of providing specific information and does not imply recommendation or endorsement by the U.S. Department of Agriculture. USDA is an equal opportunity provider and employer.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Mejía, L.C., Rossman, A.Y., Castlebury, L.A. et al. Occultocarpon, a new monotypic genus of Gnomoniaceae on Alnus nepalensis from China. Fungal Diversity 52, 99–105 (2012). https://doi.org/10.1007/s13225-011-0108-y

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s13225-011-0108-y

Keywords

Search

Navigation