, Volume 165, Issue 3, pp 173–177 | Cite as

A New Thermophilic Species of Conidiobolus from India

  • V. M. Waingankar
  • Sanjay K. Singh
  • M. C. Srinivasan


A Conidiobolus isolate growing optimally at 40°C was isolated from decomposing leaf litter and has been designated as a new species, Conidiobolus thermophilus. Colony growth, conidial discharge and smooth zygospore formation was rapid at 40°C, while comparative growth at 35 and 45°C was slower. On the basis of its thermophilic character and morphological distinctness from all other species, the isolate is considered as a species new to science. There have been no published reports of any thermophilic or thermotolerant strains of Conidiobolus. The present fungus was isolated as part of an ongoing programme of selective isolation of unusual/rare thermophilic fungi from compost and decomposed terrestrial plant materials.


Leaf litter C. thermophilus Entomophthorales Taxonomy 



We are thankful to the Director, Agharkar Research Institute, Pune, India for providing laboratory facilities. We are obliged to Dr. R. A. Humber, USDA-ARS Collection of Entomopathogenic Fungal Cultures, US Plant, Soil and Nutrition Laboratory, USA, and Dr. A. Callaghan, Institute of Environment, Sustainability and Regeneration, Staffordshire University, UK, for their valuable suggestions and guidelines which have led to substantial improvement of the manuscript.


  1. 1.
    Srinivasan MC, Thirumalachar MJ. Evaluation of taxonomic characters in the genus Conidiobolus, with key to known species. Mycologia 1967;59:698–713.CrossRefGoogle Scholar
  2. 2.
    King DS. Systematics of Conidiobolus (Entomophthorales) using numerical taxonomy. I. Biology and cluster analysis. Can J Bot 1976a;54:45–65.CrossRefGoogle Scholar
  3. 3.
    King DS. Systematics of Conidiobolus (Entomophthorales) using numerical taxonomy. II. Taxonomic considerations. Can J Bot 1976b;54:1285–96.Google Scholar
  4. 4.
    King DS. Systematics of Conidiobolus (Entomophthorales) using numerical taxonomy. III. Descriptions of recognized species. Can J Bot 1977;55:718–29.CrossRefGoogle Scholar
  5. 5.
    Ben-Ze’ev I, Kenneth RG. Features-criteria of taxonomic value in the Entomophthorales: I. A revision of the Batkoan classification. Mycotaxon 1982;14:393–455.Google Scholar
  6. 6.
    Humber RA. Synopsis of a revised classification for the Entomophthorales (Zygomycotina). Mycotaxon 1989;4:441–60.Google Scholar
  7. 7.
    Bałazy S, Wisniewski J, Kaczamrek S. Some noteworthy fungi occurring on mites. Bull Polish Acad Sci Biol Sci 1987;35:199–224.Google Scholar
  8. 8.
    Waters SD, Callaghan AA. Conidiobolus iuxtagenitus, a new species with discharged elongate repetitional conidia and conjugation tubes. Mycol Res 1989;93:223–6.Google Scholar
  9. 9.
    Bałazy S. Entomophthorales. In: Flora of Poland. Vol. 24. Fungi (Mycota). Polish Acad Sci, W Szafer Inst Bot Krakow, Poland 1993;1–356.Google Scholar
  10. 10.
    Tosi S, Caretta G, Humber RA. Conidiobolus antarcticus, a new species from continental Antarctica. Mycotaxon 2004;90:343–7.Google Scholar
  11. 11.
    Huang B, Humber RA, Hodge KT. A new species of Conidiobolus from Great Smoky Mountains National Park. Mycotaxon 2007;100:227–33.Google Scholar
  12. 12.
    Srinivasan MC, Vartak HG, Powar VK, Sutar II. High activity alkaline protease produced by a Conidiobolus. Biotechnol Lett 1983;5:285–8.CrossRefGoogle Scholar
  13. 13.
    Phadatare SU, Deshpande VV, Srinivasan MC. High activity alkaline protease from Conidiobolus coronatus (NCL 86-8-20): Enzyme production and compatibility with commercial detergents. Enz Microbiol Tech 1993;5:72–6.CrossRefGoogle Scholar
  14. 14.
    Laxman SR et al. Process for the preparation of alkaline protease. US Patent 6777219, 2004.Google Scholar
  15. 15.
    Idemitsu-Petrochem. Preparation of lipid containing bishomogammalinolenic acid by culturing Conidiobolus sp. in sesame oil culture medium JP-089982. Biotechnol Abstr 1990;91:02817.Google Scholar
  16. 16.
    Srinivasan MC. Biology and biotechnology potential of saprophytic Entomophthorales. In: Ganguli BN, Deshmukh SK, editors. Fungi: Multifaceted microbes, New Delhi: Anamaya Publishers, 2007:16–27.Google Scholar
  17. 17.
    Jaffey PB, Haque AK, El-Zaatari M, Pasarell L, McGinnis MR. Disseminated Conidiobolus infection with endocarditis in a cocaine abuser. Arch Pathol Lab Med 1990;114:1276–8.PubMedGoogle Scholar
  18. 18.
    Drechsler C. Widespread distribution of Delacroixia coronata and other saprophytic entomophthoraceae in plant detritus. Science 1952;115:575–6.PubMedCrossRefGoogle Scholar
  19. 19.
    Srinivasan MC, Thirumalachar MJ. Studies on species of Conidiobolus from India-I. Sydowia Ann Mycol 1961;15:237–41.Google Scholar
  20. 20.
    Holmgren PK, Holmgren NH, Barnett LH. Index Herbariorum. Part I. The Herbaria of the World. 8th ed. Regnum vegetabile, vol. 120. New York: Botanical Garden; 1990.Google Scholar
  21. 21.
    Drechsler C. Three new species of Conidiobolus isolated from leaf mold. J Wash Acad Sci 1953;43:29–43.Google Scholar
  22. 22.
    Srinivasan MC, Thirumalachar MJ. Two new species of Conidiobolus from India. J Elisha Mitchell Sci Soc 1968;84:211–2.Google Scholar

Copyright information

© Springer Science+Business Media B.V. 2008

Authors and Affiliations

  • V. M. Waingankar
    • 1
  • Sanjay K. Singh
    • 1
  • M. C. Srinivasan
    • 1
  1. 1.Mycology and Plant Pathology GroupPlant Sciences Division, Agharkar Research InstitutePuneIndia

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