The differences of morphological and physiological characteristics of Trametes spp. isolated from the forest
at Sungai Rayu Matang Wildlife Centre, Sarawak were studied. Twenty one expected species of Trametes
have been collected. T. versicolor. T multicolor and Trametes. sp 24 were the most common Trametes
species found. Nine selected isolates of Trametes spp. were used for physiological studies. Growth rates of
Trametes on different media, incubated temperature, carbon, nitrogen, phosphate and potassium sources were
varied depending on isolates. Among three media used, the highest growth rates of the isolate were on either
PDA or MEA. All species were able to grow on the tested media except for Trametes. sp 24 which did not
grow on CMA. The highest growth rates of Trametes species were at 25 'c to 35 'CO There was no growth at
40 'C except for T.e/egans. Trametes were able to grow on diverse carbon sources and without carbon
sources. The most efficient carbon sources for Trametes to grow were sucrose, starch and lactose. Peptone
and yeast were the most efficient nitrogen sources compared to NaN03, KN03 and without nitrogen. Media
with KN03 plus KH2P04 was the most efficient used by Trametes for phosphate taken by the fungi compared
to other potassium sources. KH2P04 was the best potassium source for Trametes growth