Latest Issue: #32, August 2015
Goodbye to Australasian Mycologist
Dee Carter, Managing Editor
School of Molecular Bioscience, University of Sydney, NSW 2006, Australia.
Author for correspondence. Email: firstname.lastname@example.org.
Dimethyl sulfoxide inhibits Tilletia laevis teliospore germination
S. Ansari1, M. R. Moosavi1, Lori M. Carris2, M. Nasrollahi3 and M. R. Mirzaee4
1. Department of Plant Pathology, College of Agriculture, Marvdasht Branch, Islamic Azad University, Marvdasht, Iran.
2. Department of Plant Pathology, Washington State University, Pullman, WA, U.S.A.
3. Agriculture Research Station of Boroujerd, Lorestan, Iran.
4. Department of Plant Protection, Agriculture and Natural Resources Research Center of Southern Khorasan, Birjand, PO Box 413, Iran.
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Teliospore germination plays an important role in the infection and pathogenesis of smut fungi. The effect of the solvent dimethyl sulfoxide (DMSO) on teliospore germination in the wheat bunt fungus Tilletia laevis was investigated. DMSO concentrations greater than 2.5% significantly reduced the germination rate of teliospores on water agar. Changes in the morphology of basidia and basidiospores also were observed when germination occurred in the presence of DMSO. The current study indicates that DMSO is a potent inhibitor of teliospore germination and sporidial formation, and may be a tool for controlling T. laevis solely or in combination with other disease management practices.
Fungal hyphae of a Coprinopsis sp. found in a bilby (Macrotis lagotis) burrow spoil-mound
Tamra F. Chapman1, Tom W. May2, Franck O.P. Stefani2, Neale L. Bougher1 & Richard M. Robinson3
1. Department of Parks and Wildlife, Locked Bag 104, Bentley Delivery Centre, Bentley WA 6983.
2. Royal Botanic Gardens Melbourne, Private Bag 2000, South Yarra VIC 3141.
3. Department of Parks and Wildlife, Locked Bag 2, Manjimup WA 6258.
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Mycelium-like material was found in soil samples collected from the spoil-mound of a bilby (Macrotis lagotis) burrow in central Western Australia. The presence of clamp connections indicated that it belonged to the Basidiomycota. Analysis of the ITS region of rDNA resulted in 99% similarity with sequences from Coprinopsis spilospora (Romagn.) Redhead, Vilgalys and Moncalvo and Coprinus subdomesticus Murrill and 98% with a sequence from C. alcobae Ortega. Coprinopsis spilospora was the best match to the bilby-spoil sequence, leading to the conclusion that it should be identified as Coprinopsis cf. spilospora. Coprinopsis spilospora has not previously been reported from Australia and has been recorded in only a few localities in Europe. This opportunistic discovery of a fungus previously unknown to be associated with bilby burrow spoil-mounds shows that there is great potential for further investigation into the interrelationship between soil modification by mammals, the prevalence of soil fungi and the influence of mammals on soil and fungi ecology in Australia.
Studies on some powdery mildew of Himachal Pradesh, India
Ajay Kumar Gautam
Faculty of Agriculture, Abhilashi University, Mandi-175028 (H.P.) India.
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Five powdery mildew fungi: Phyllactinia guttata, Podosphaera xanthii, Erysiphe quercicola, Odium sp. and Sphaerotheca fuliginea on Populus sp., Ageratum conyzoides, Quercus sp., Aegle marmelos and Zinnia elegans respectively, have been collected from Himachal Pradesh, India during a phytopathological survey from September – December, 2013. Detailed descriptions, illustrations, and comments are provided.