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Indian Phytopathology

, Volume 71, Issue 3, pp 457–462 | Cite as

Sporidesmium binserum sp. nov. from Binser forest of Almora, Himalaya, India

  • Manish Kumar DubeyEmail author
  • Ram Sanmukh Upadhyay
  • Deeba Kamil
  • Ramesh Chandra Gupta
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Abstract

A new and interesting species of Sporidesmium was discovered during a survey of plant debris inhibiting litter decomposing microfungi in Binser forest, Almora, Uttarakhand, India. This new species, Sporidesmium binserum sp. nov., a dematiaceous hyphomycete was found on decaying leaf litter of the host plant Quercus leucotrichophora (oak). The key features of special interest that distinguish it from other morphologically similar species of Sporidesmium are macronematous, mononematous, percurrent proliferations towards the end in the flexuous multiseptate conidiophores with obtuse tip having distinctively curved, fusiform to subfusiform, 3-septate conidia, consist of 3 cells, second cell dark brown with slightly or distinctly constricted at the septa, tip cell of conidia highly curved and/or twisted, mostly flat and conic-truncated ends at base due to schizolytic secession. The conidial maturation is presumably synchronous with conidial ontogeny. Based on these features, the specimen is proposed here as a new species. Apart from it, a note on the current status of Sporidesmium sensu lato in India is also provided.

Keywords

Central Himalaya Dematiaceous hyphomycetes New taxa Oak leaf litter fungi Saprobic 

Notes

Acknowledgements

The authors are thankful to the Head, Department of Botany, Banaras Hindu University, Varanasi, India for library and technical facilities.

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Copyright information

© Indian Phytopathological Society 2018

Authors and Affiliations

  • Manish Kumar Dubey
    • 1
    Email author
  • Ram Sanmukh Upadhyay
    • 1
  • Deeba Kamil
    • 2
  • Ramesh Chandra Gupta
    • 3
  1. 1.Laboratory of Mycopathology and Microbial Technology, Centre of Advanced Study in BotanyBanaras Hindu UniversityVaranasiIndia
  2. 2.Division of Plant PathologyIndian Agricultural Research InstituteNew DelhiIndia
  3. 3.Department of BotanyKumaun UniversityAlmoraIndia

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