Occurence of Trametes species in forest at Sg. Rayu Matang Wildlife Centre

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

Wood Anatomical Features of Anacardiaceae from Malaysia

This study examined the anatomical features of Anacardiaceae from Malaysia. A total of 31 species from 13 genera of the family Anacardiaceae in Malaysia were obtained from Kepong Xylarium (KEPw), Forest Research Institute Malaysia. The genera in Anacardiaceae were distinguished based on anatomical features. The diagnostic anatomical features that were used to separate the genera are scalariform perforations plates present in Campnosperma, larger rays in Pentaspadon and Spondias, and radial canals in some genera. Mineral inclusion, i.e., crystals and silica also could be diagnostic features to distinguish the genera in Malaysian Anacardiaceae; silica was observed in Gluta, Parishia, and Swintonia. Anatomical features could be used as indicators to the other wood properties and lead to potential usage of timber in Anacardiaceae. However, the presence of druses in individual Toxicodendron succedaneum indicated its adaptation to the local microclimatic conditions

Wood anatomical features of Anacardiaceae from Malaysia

This study examined the anatomical features of Anacardiaceae from Malaysia. A total of 31 species from 13 genera of the family Anacardiaceae in Malaysia were obtained from Kepong Xylarium (KEPw), Forest Research Institute Malaysia. The genera in Anacardiaceae were distinguished based on anatomical features. The diagnostic anatomical features that were used to separate the genera are scalariform perforations plates present in Campnosperma, larger rays in Pentaspadon and Spondias, and radial canals in some genera. Mineral inclusion, i.e., crystals and silica also could be diagnostic features to distinguish the genera in Malaysian Anacardiaceae; silica was observed in Gluta, Parishia, and Swintonia. Anatomical features could be used as indicators to the other wood properties and lead to potential usage of timber in Anacardiaceae. However, the presence of druses in individual Toxicodendron succedaneum indicated its adaptation to the local microclimatic conditions

Anatomical and physical properties of three lesser-known timber species from Malaysia

The purpose of this study is to determine the anatomical and physical properties of three lesser-known Malaysian timber species, i.e., mahang (Macaranga hosei), medang (Litsea costalis), and terap (Artocarpus scortechinii). Correlation factors that influenced the density and shrinkage were also discussed. From the results obtained, terap wood had the longest fibre (1421 µm), followed by medang (1309 µm), and mahang (1161 µm). Terap, medang, and mahang were categorized as having very thin fibres. The density of terap, medang, and mahang had average values of 504 kg/m 3 , 485 kg/m 3 , and 474 kg/m 3 , respectively. In addition, terap wood also showed the highest shrinkage, followed by mahang and medang wood. This present study showed that the density was significantly influenced by the fibre length, fibre wall thickness, vessel diameter, and number of vessels. In addition, the shrinkage was highly correlated with the density. In conclusion, mahang, medang, and terap wood could be an alternative raw material to fulfill demand in wood- based industries

Science@IIUM Issue 2

Science@IIUM is a magazine that celebrates the members of Kulliyyah of Science, IIUM. Through interviews, image stories and curated content, Science@IIUM highlights the success and anecdotes from those who explore and challenge themselves in academics and also in other areas

Science@IIUM Issue 3

Science@IIUM is a magazine that celebrates the members of Kulliyyah of Science, IIUM. Through interviews, image stories and curated content, Science@IIUM highlights the success and anecdotes from those who explore and challenge themselves in academics and also in other areas