6 research outputs found
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 ยตm), followed by medang (1309 ยตm), and
mahang (1161 ยตm). 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