Terms of use

Welcome to our website. If you continue to browse and use this website, you are agreeing to comply with and be bound by the following terms and conditions of use, which together with our privacy policy govern National Center for Genetic Engineering and Biotechnology’s relationship with you in relation to this website. If you disagree with any part of these terms and conditions, please do not use our website.

The term 'National Center for Genetic Engineering and Biotechnology' or 'BIOTEC' or 'us' or 'we' refers to the owner of the website whose registered office is 113 Thailand Science Park, Phahonyothin Road, Khlong Nueng, Khlong Luang, Pathum Thani 12120, Thailand. The term 'you' refers to the user or viewer of our website. The use of this website is subject to the following terms of use:

  • The content of the pages of this website is for your general information and use only. It is subject to change without notice.

  • This website contains material which is owned by BIOTEC or licensed to us. This material includes, but is not limited to, the design, layout, look, appearance and graphics. Reproduction is prohibited other than in accordance with the copyright notice, which forms part of these terms and conditions.

  • Your use of any information or materials on this website is entirely at your own risk, for which BIOTEC shall not be liable. It shall be your own responsibility to ensure that any products, services or information available through this website meet your specific requirements.

  • Neither we nor any third parties provide any warranty or guarantee as to the accuracy, timeliness, performance, completeness or suitability of the information and materials found or offered on this website for any particular purpose. You acknowledge that such information and materials may contain inaccuracies or errors and we expressly exclude liability for any such inaccuracies or errors to the fullest extent permitted by law.

  • All trademarks reproduced in this website which are not the property of, or licensed to, the operator are acknowledged on the website.

  • Unauthorized use of this website is strictly prohibited and may give rise to a claim for damages and/or be a criminal offence.

  • Close

    Isaria farinosa (Holmsk.) Fr. Syst. mycol. (Lundae) 3: 271 (1832)


    There are more than ten synonyms for Isaria farinosa. See Samson (1974) or the Index Fungorum (http://www.indexfungorum.org) for more information.   Ramaria farinosa Holmsk., K. Danske Vidensk. Selsk. Skr. Nye Samling 1: 279 (1781) Paecilomyces farinosus (Holmsk.: Fr.) A.H.S. Br. & G. Sm, Trans. Br. Mycol. Soc. 40: 50 (1957) Isaria crassa Pers., Comment. Fung. Clavaeform. p. 99. (1797); ex S. F. Gray, Nat. Arrang. Brit. Pl., p. 562 (1821) Isaria velutipes Link, Mag. Ges. Naturf. Freunde, Berlin 3: 20 (1809); ex S. F. Gray, Nat. Arrang. Brit. Pl. , p. 562 (1821) Isaria clavata Ditm., Sturm Deutschl. Fl., Pilze 1: 113 (1817); ex Pers., Mycol. eur. 1: 46 (1822) Isaria furcata Schw., Trans. Am. phil. Soc. 4: 304 (1834) Verticillium corymbosum Lebert, Z. wiss. Zool. 9: 445 (1858) Spicaria longipes Petch, Trans. Br. Mycol. Soc. 21: 51 (1937) = Paecilomyces longipes (Petch) Brown & Smith, Trans. Br. Mycol. Soc. 40: 75 (1957) Isaria takamizusanensis Y. Kobayasi, Sci. Rep. Tokyo Bunrika Daig. 5: 229 (1941) Isaria farinosa (Holm ex S.F. Gray) Fr. Var. citriformis Y. Kobayasi, Sci. Rep. Tokyo Bunrika Daig. 5: 235 (1941) Spicaria pulvinata Mains, Mycologia 41: 305 (1949)

    Teleomorph state: suspected in Cordyceps or Torrubiella


    Specimens were found in leaf litter or underside of leaves. Hosts are from several insect orders (Coleoptera, Diptera, Hemiptera, Homoptera, Hymenoptera and Lepidoptera) and also spiders. Host is covered by dense powdery mycelia, white to yellow-white bearing numerous conidiophores, sometimes synnemata arise from different parts of the insect body. Conidiogenous structures more swollen in nature than from in vitro cultures.   Colonies on PDA are relatively fast-growing attaining a diam. of 50-60 mm in 14 d at 25°C. Colonies floccose, white turning cream or yellow and powdery at the onset of conidiation, reverse yellow or cream. Conidiophores either arising from side branches of aerial hyphae or directly from submerged mycelia. Conidiogenous cells flask-shaped, smooth-walled 8-10 x 1.5-2 mm. Conidia hyaline and smooth-walled, globose, subglobose to ellipsoidal, 4-6 x 2 mm.   Isaria farinosa is another common species of Isaria collected in Thailand. A Torrubiella-like teleomorph was found in strains collected from spiders. Work is underway to investigate the relationships of strains from different hosts. Preliminary molecular work revealed several phylogenetic species from this one morphospecies.


    Luangsa-ard, J.J., Hywel-Jones, N.L., Manoch, L. & Samson, R.A. (2005). On the relationships of Paecilomyces sect. Isarioidea species. Mycological Research 109: 581-589.   Samson, R.A. (1974). Paecilomyces and some allied Hyphomycetes. Studies in Mycology 6: 32-36.

    Locality: Mae Sae National Park,
    Province: Chiang Mai,
    Country: Thailand

    Search this species at: