Additions to fungi of India

V.B. Hosagoudar 1 & G.R. Archana 2

Tropical Botanic Garden and Research Institute, Palode 695 562, Thiruvananthapuram, Kerala

E-mail: 1 vbhosagoudar@rediffmail.com

Date of publication (online): 26 August 2009

Date of publication (print): 26 August 2009

ISSN 0974-7907 (online) | 0974-7893 (print)

Editor: R.K. Verma

Manuscript details:

Ms # o2152

Received 25 February 2009

Final received 17 June 2009

Finally accepted 13 July 2009

Citation: Hosagoudar, V.B. & G.R. Archana(2009). Additions to fungi of India. Journal of Threatened Taxa 1(8): 437-438.

Copyright: © V.B. Hosagoudar & G.R. Archana2009. Creative Commons Attribution 3.0 UnportedLicense. JoTT allows unrestricted use of this article in any medium for non-profit purposes, reproduction and distribution by providing adequate credit to the authors and the source of publication.

Acknowledgement: We thank Director-in-charge, Tropical Botanic Garden and Research Institute, Palode, Thiruvananthapuram, Kerala for providing facilities.

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During a survey of the foliicolous fungi of Coorg, Karnataka, we collected leaves of Dipterocarpussp. (Dipterocarpaceae) infected with a black mildew fungus. Microscopic examination of the fungus revealed that it belonged to the genus Cirsosia. The colonies of this fungus were severelyhyperparasitized by two fungi. Critical perusal of the literature revealed that these two hyperparasites are hitherto unrecorded species from India.

Hansfordiella meliolae (Hansf.) Hughes, Mycol. pap. 47: 14, 1951. (Image 1)

Teratosperma meliolae Hansf., Proc. Linn. Soc. London 159: 41, 1947.

Colonies on Cirsosia sp. Mycelium superficial, pale, brown, septate, branched, 13-18 x 5-7 µm. Conidiophores micronematous, mononematous, solitary, simple, straight, deep brown, smooth, 13-18 x 5-7 µm. Conidiogenous cells monoblastic, integrated, terminal, determinate, cylindrical, cicatrized. Conidia solitary, dry, acrogenous, simple, obclavate, rostrate, truncate at the base, the first septum at the base is transverse, parallel, the second septum is oblique and joins the transverse septum by dividing the larger cell into two. The second oblique septum divides the larger cells into two to three upper cells. The upper most cell is divided into two by the next oblique septum laid parallel to the lowest septum bearing the apical cell to form a beak. Now the spore proper is having 5-7 cells, with a truncate base. Spore measures 32-50 µm long, 4-6 µm broad at the truncate part, 12-14 µm broad at the broadest part and 1-2 µm broad at the apical portion. Spores brown to deep brown at the middle part, pale at the apical portion.

Materials examined

12.xi.2003, overgrowing on the colonies of Cirsosia sp. on Dipterocarpussp. (Dipterocarpaceae), Jodupal,Madikeri, Coorg, Karnataka, Ali Abbas Shaikh TBGT 3190; 20.vii.2006, on the colonies of Amazonia on Psychotria sp., Vadagaraiparai, Kodaikkanal, Tamil Nadu, Nithya Tharani HCIO 48437, TBGT 3158.

This fungus produces enormous dictyosporous conidia and is reported here for the first time from India (Bilgrami et al. 1991; Hughes (1951).

Domingoella asterinarum Petrak & Ciferri, Ann. Mycol. 30: 339, 1932; Deight. & Pirozynski, Mycol.pap.128: 89, 1972 (Plate I, 4).

Colonies on Cirsosia sp., effuse, greyish. Mycelium superficial with a network of branched, anastomosing, pale brown hyphae, 2-4 µm broad. Conidiophoresmacronematous, mononematous, straight to flexuous, simple, pale brown, swollen at the base, taper towards apex, 40-54 x 3-4 µm. Conidiogenous cells monoblastic, integrated, terminal, percurrent. Conidia solitary, dry, acrogenous, simple, spherical with a narrow, cylindrical protuberant peg at the base, entire, pale brown, thick walled, smooth, 8-12 µm.

Materials examined

12.xi.2003, overgrowing on the colonies of Cirsosia sp. on Dipterocarpussp. (Dipterocarpaceae), Jodupal,Madikeri, Coorg, Karnataka, Ali Abbas Shaikh TBGT 3190.

Elongated conidiophores with unicellular conidia dominated the host mycelium. This fungus produces enormous conidia and is reported here for the first time from India (Bilgrami et al. 1991).

References

Bilgrami, K.S., Jamaludeen & M.A. Rizwi(1991). Fungi of India.List and References. Today and Tomorrow’s Printers and Publishers, New Delhi, 798pp.