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Bangladesh J. Plant Taxon. 16(1): 91-93, 2009 (June) - Short communication 
© 2009 Bangladesh Association of Plant Taxonomists   

BIPOLARIS AUSTRALIENSIS (M.B. ELLIS) TSUDA & UEYAMA – A NEW 
DEMATIACEOUS HYPHOMYCETES RECORD FOR BANGLADESH 

 
SHAMIM SHAMSI1 AND ZUHRA YASMIN 

 

Department of Botany, University of Dhaka, Dhaka 1000, Bangladesh. 
 

Keywords: Bipolaris australiensis; New record; Bangladesh. 

    
 An anamorphic fungus Bipolaris australiensis (M.B. Ellis) Tsuda & Ueyama was 
found associated with felled, painted timber. The fungus was isolated following 
“streaking” method on PDA medium (CAB, 1968). Cladosporium sp., Pestalotia sp. and 
Trichoderma viride Pers were also found along with B.  australiensis. Earlier, Bipolaris 
spicefera (Bainier) Subrum. was recorded on rice (Shamsi, 1999) and B. sorokiniana 
(Sacc.) Shoem on wheat (Ali-Hydar and Fakir, 1992; Ahmed and Hossain, 2003) from 
Bangladesh. Bipolaris australiensis is a new record for Bangladesh.  
 
Bipolaris australiensis (M.B. Ellis) Tsuda & Ueyama, Mycologia 73: 88-96, 1981.                     

(Plates 1, 2) 
 Colonies blackish-green, velvety on PDA medium at room temperature between 24 
and 29ºC at pH 6. Hyphae brown, smooth septate. Conidiophores solitary, flexous or 
geniculate, septate, chocolate brown, 57-138 × 4.5-6.3 µm. Conidia straight, ellipsoidal 
or oblong, rounded at the ends, chocolate brown, mostly 3-pseudoseptate,  rarely  4 or 5-
pseudoseptate,  13-36 × 8-11 µm.   
 Conidia germinate from both poles (bipolar). A flattened hilum or point of 
attachment is seen on the basal cell of conidia (Shoemaker, 1959; Tsuda and Ueyama, 
1981). On the basis of condial features, Tsuda and Ueyama (1981) transferred Drechslera 
australiensis M.B. Ellis to the genus Bipolaris Shoemaker. 
 Specimen examined: Isolated from felled, painted wood. 230 New D.O.H.S. 
Mohakhali, Dhaka, Shamsi  2086, 6 February 2008.  
 
 
1 Corresponding author. E-mail: prof.shamsi@gmail.com 

 
 
 
 
 
 



92 SHAMSI AND YASMIN 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 

 
Plate 1. Bipolaris australiensis. A. Colonies on painted wood; B. Photomicrograph of conidiophores and 

conidia (Bar = 30 µm).  

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Plate 2. Bipolaris australiensis. A. Conidiophores; B. Conidia. 



BIPOLARIS AUSTRALIENSIS (M.B. ELLIS) TSUDA & UEYAMA 93 
 
Acknowledgements 
 The authors express their sincere thanks and gratitude to the Chairman, Department 
of Botany, University of Dhaka for providing all laboratory facilities to carry out the 
present research. Special thanks are extended to Prof. A.Z.M. Nowsher Ali Khan and 
Prof. M.R. Khan of the same department for their overall cooperation during the tenure of 
research. 
 
References 
Ahmed, F. and Hossain, I. 2003. Physiologic races of Bipolaris sorokiniana in Bangladesh. Bangladesh J. 

Agric. Res. 30(4): 568-583. 
Ali-Hydar, M.M. and Fakir, G.A. 1992.  Fungi associated with wheat grains in Bangladesh and their 

pathogenic significance. Bangladesh  J. Bot. 21(2): 173-180. 
CAB (Commonwealth Agricultural Bureau) 1968. Plant Pathologist’s Pocket Book. The Commonwealth 

Mycological Institute, Kew, Surrey, England, pp. 1-267. 
Shamsi, S. 1999. Investigations into the sheath rot disease of rice (Oryza sativa L.) in Bangladesh. PhD 

Thesis, Department of Botany, University of Dhaka, pp. i-xii + 1-127. (unpublished) 
Shoemaker, R.A. 1959. Nomenclature of Drechslera and Bipolaris segregated from Helminthosporium. 

Canad. J. Bot. 37: 879-887. 
Tsuda, M. and Ueyama, A. 1981. Pseudocochliobolus australiensis, The ascigerous state of Bipolaris 

australiensis. Mycologia 73: 88-96. 

 
 (Manuscript received on 3 July  2008; revised on 8 January 2009)