Seephueak et al
Sydowia Vol. 63/2 E-Book/S 249-282
Diversity of saprobic fungi on decaying rubber logs (Hevea brasili
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P. Seephueak*; S. Phongpaichit**; K.D. Hyde***/**** & V. Petcharat*****

*Program in Tropical Agricultural Resource Management, Faculty of Natural Resources, Prince of Songkla University, Hat Yai Campus, Songkhla,
90112, Thailand.
**Department of Microbiology, Faculty of Science, Prince of Songkla University, Hat Yai Campus, Songkhla, 90112, Thailand.
***School of Science, Mae Fah Luang University, Chiang Rai 57100, Thailand.
****Botany and Microbiology Department, College of Science, King Saud University, Riyadh 1145, Saudi Arabia.
*****Department of Pest Management, Faculty of Natural Resources, Prince of Songkla University, Hat Yai Campus, Songkhla, 90112, Thailand.

Seephueak P., Phongpaichit S., Hyde K.D. & Petcharat V. (2011) Diversity of saprobic fungi on decaying rubber logs (Hevea brasiliensis). – Sydowia 63 (2): 249–282.

The objective of this research was to study the diversity of fungi associated with the degradati-on of rubber tree logs (Hevea brasiliensis). Samples were collected during four periods in 2010: January (during the late rainy season), April (during the dry season), July (early in the rainy season) and October (during the rainy season) in Nakhon Si Thammarat and Songkhla Provinces, in southern Thailand. Each sample belonged to one of the following of three groups; newly fallen logs, middle stage decaying logs and old decaying fallen logs. Moist chamber, dilution pour-plate and sporocarp survey methodology were used. Fungal identification was based on morphological examination under compound and stereo microscopes. In total 461 species were identified from the decaying logs, comprising 384 anamorphic taxa, 46 ascomycota and 31 basidiomycota. Bactrodesmium rahmii, Botryodiplodia sp., Kirschsteiniothelia sp., Lasiodiplodia cf. theobromae, Paratomenticola lanceolatus and Veronaea coprophila were the dominant species occurring at all stages of decomposition. In addition, Bactrodesmium rahmii was the dominant species occurring during all seasons.
Keywords: decomposition, lignicolous fungi, woody litter, rubber tree.
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