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Tropical Life Sciences Research

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https://www.readbyqxmd.com/read/29644026/synergistic-apoptotic-effects-of-tocotrienol-isomers-and-acalypha-wilkesiana-on-a549-and-u87mg-cancer-cells
#1
Ibrahim Babangida Abubakar, Su-Wen Lim, Hwei-San Loh
Recent studies suggested that combined treatment approaches can be used to improve anticancer potency and circumvent the limitations of high-dose tocotrienols administration. Acalypha wilkesiana is a medicinal plant that has been used as an adjunct treatment for cancers in traditional medicine. Herein, the effects of single and combined treatments of β-, γ- and δ-tocotrienols and ethyl acetate extract (9EA) of Acalypha wilkesiana on lung (A549) and brain (U87MG) cancer cells were investigated. γ- and δ-tocotrienols exhibited higher potent antiproliferative effects against A549 (12...
March 2018: Tropical Life Sciences Research
https://www.readbyqxmd.com/read/29644025/co-breeding-association-of-aedes-albopictus-skuse-and-aedes-aegypti-linnaeus-diptera-culicidae-in-relation-to-location-and-container-size
#2
Nur Aida Hashim, Abu Hassan Ahmad, Anita Talib, Farida Athaillah, Kumara Thevan Krishnan
The occurrence of major outbreaks of dengue, and other vector borne diseases such as chikungunya and zika in tropical and subtropical regions has rendered control of the diseases a top-priority for many affected countries including Malaysia. Control of the mosquito vectors Aedes aegypti and Aedes albopictus through the reduction of breeding sites and the application of insecticides to kill immature forms and adults are the main control efforts to combat these diseases. The present study describes the association between Ae...
March 2018: Tropical Life Sciences Research
https://www.readbyqxmd.com/read/29644024/a-comparative-study-on-physicochemical-characteristics-of-raw-goat-milk-collected-from-different-farms-in-malaysia
#3
Syarifah Hazirah Syd Jaafar, Roshada Hashim, Zaiton Hassan, Norlelawati Arifin
This study was conducted to determine the physical and chemical composition of goat milk produced by eight local farms located in the central region of Malaysia. Farms 1 to 4 (F1-SC, F2-SP, F3-SP, F4-SBC) reared Saanen-type goats while farms 5 to 8 (F5-JK, F6-JPEC, F7-JTC, F8-JC), Jamnapari-type goats. The common feedstuffs used in all farms comprised of fresh or silage from Napier grass, feed pellets, and brans while two farms, F5-JK and F6-JPEC supplemented the feeds with soybean-based product. The total solid content, dry matter, and proximate composition of goat milk and feedstuffs from the different farms were determined and the results analysed using principal component analysis...
March 2018: Tropical Life Sciences Research
https://www.readbyqxmd.com/read/29644023/use-of-pleurotus-eous-strain-p-31-spent-mushroom-compost-smc-as-soil-conditioner-on-the-growth-and-yield-performance-of-capsicum-annuum-l-and-solanum-lycopersicon-l-seedlings-under-greenhouse-conditions-in-ghana
#4
M Wiafe-Kwagyan, G T Odamtten
The objective of this study was to investigate the influence of spent mushroom compost of Pleurotus eous strain P-31 on the growth and yield performance of pepper and tomato seedlings under greenhouse conditions. Sandy loam soil was combined with different percentages of SMC to obtain the following combinations (0, 5, 10, 15, 20, 25 and 30) %. Lower concentrations SMC5 , SMC10 and SMC15 promoted vegetative growth (plant height, leaf area, chlorophyll content, number of leaves and axillary branches) of the two test plants...
March 2018: Tropical Life Sciences Research
https://www.readbyqxmd.com/read/29644022/assessing-nesting-status-of-green-turtles-chelonia-mydas-in-perak-malaysia
#5
Sarahaizad Mohd Salleh, Shahrul Anuar Mohd Sah, Ahmed Jalal Khan Chowdhury
The nesting of green turtle ( Chelonia mydas ) was monitored from 1998 untill 2013 along the beaches of Pasir Panjang, Segari, Perak. The objective of the study is to assess the nesting status of green turtles in Perak, Peninsular Malaysia in terms of total nests, eggs, survival hatchings, and density of visitors. A total number of green turtle nests found for 16 years were 1,019 nests and varied from 10 to 220 nests per year. Meanwhile, the sum of eggs collected for 16 years were 107,820 eggs, and varied from 553 to 20,881 eggs per year...
March 2018: Tropical Life Sciences Research
https://www.readbyqxmd.com/read/29644021/the-distribution-and-population-density-of-bornean-tarsier-tarsius-bancanus-borneanus-elliot-in-secondary-and-rehabilitated-forests-of-universiti-putra-malaysia-bintulu-sarawak-campus-sarawak-malaysia
#6
Hani Nabilia Muhd Sahimi, John Keen Chubo, Marina Mohd Top Mohd Tah, Noor Bahiah Saripuddin, Siti Sarah Ab Rahim
Tarsius bancanus borneanus was first reported by Elliot in 1990 which an endemic species that can be found on the Island of Borneo consisting of Sabah and Sarawak of Malaysia, Brunei Darussalam and Kalimantan, Indonesia. This sub-species has been listed as a totally protected animal under the Sarawak Wild Life Protection Ordinance (1998) and vulnerable by the International Union for Conservation of Nature (IUCN). The present study was conducted at Universiti Putra Malaysia Bintulu Campus (UPMKB), Sarawak from October 2014 till March 2015...
March 2018: Tropical Life Sciences Research
https://www.readbyqxmd.com/read/29644020/the-effects-of-microalgae-as-live-food-for-brachionus-plicatilis-rotifer-in-intensive-culture-system
#7
Abdull Razak Abd Rahman, Zaidi Che Cob, Zainoddin Jamari, Abdul Majid Mohamed, Tatsuki Toda, Othman Haji Ross
Brachionus plicatilis is used to feed fish and crustacean larvae in the aquaculture industry. It is well established that the type of microalgae may influence rotifer production. This experiment was conducted to determine the effect of five different locally available microalgae species at Fisheries Research Institute (FRI), Kampung Pulau Sayak, Kedah, Malaysia on the instantaneous growth rate (μ) of rotifer. Nannochloris sp., Tetraselmis sp., Isochrysis sp., Chlorella sp., and Nannochloropsis sp. were used as feed at different algae densities (0...
March 2018: Tropical Life Sciences Research
https://www.readbyqxmd.com/read/29644019/effects-of-incorporation-of-jackfruit-rind-powder-on-chemical-and-functional-properties-of-bread
#8
Reza Felli, Tajul Aris Yang, Wan Nadiah Wan Abdullah, Wahidu Zzaman
Nowadays, there is a rising interest towards consuming health beneficial food products. Bread-as one of the most popular food products-could be improved to 'healthy bread' by addition of ingredients high in protein, dietary fiber and low in calorie. Incorporating Jackfruit rind powder (JRP) as a by-product rich in dietary fiber in bread, could not only provide health beneficial bread products, but also lead to develop an environmental friendly technology by solving the problem of waste disposal of residues...
March 2018: Tropical Life Sciences Research
https://www.readbyqxmd.com/read/29644018/low-ph-water-impairs-the-tactile-sense-of-the-postlarvae-of-the-giant-freshwater-prawn-macrobrachium-rosenbergii
#9
Gunzo Kawamura, Teodora Bagarinao, Annita Seok Kian Yong, Siti Narasidah Noor, Leong-Seng Lim
The effect of low pH on the tactile sense of Macrobrachium rosenbergii postlarvae was determined in the laboratory by means of two behavioural assays: shelter (netting) occupancy and jumping response to touch stimuli (taps) by a glass micropipette. The postlarvae were acclimated to pH 4, pH 5, pH 6 and pH 7.5 (control) in 45 L aquaria 5-7 d before the experiments. Shelter occupancy decreased with pH and was significantly lower at pH 4 and pH 5 than at pH 6 and in the control. The jumping response instantly followed a tap 93-98% of the time in the control, pH 6 and pH 5 treatments...
March 2018: Tropical Life Sciences Research
https://www.readbyqxmd.com/read/29644017/morphological-characteristics-and-habitats-of-red-seaweed-gracilaria-spp-gracilariaceae-rhodophyta-in-santubong-and-asajaya-sarawak-malaysia
#10
Muhammad Nur Arif Othman, Ruhana Hassan, Mohd Nasarudin Harith, Amir Shah Ruddin Md Sah
Red seaweed Gracilaria , one of the largest genus in Division Rhodophyta inhabits Sarawak coastal water. This study was designed to identify the species of Gracilaria using morphological approach and to assess selected water quality parameters in Gracilaria habitats. Three field samplings were carried out in Santubong and Asajaya, Sarawak from November 2013 to December 2014. Overall, three species were identified namely Gracilaria changii , G. blodgettii and G. coronopifolia , attached to net of cage culture in Santubong and root of mangrove trees in Asajaya...
March 2018: Tropical Life Sciences Research
https://www.readbyqxmd.com/read/29644016/the-effect-of-oxidative-stress-towards-the-expression-of-thiamine-biosynthesis-genes-thic-and-thi1-thi4-in-oil-palm-elaeis-guineensis
#11
Zainor Hafisah Che Idris, Aisamuddin Ardi Zainal Abidin, Atiqah Subki, Zetty Norhana Balia Yusof
Thiamine is known to be an important compound in human diet and it is a cofactor required for vital metabolic processes such as acetyl-CoA biosynthesis, amino acid biosynthesis, Krebs and Calvin cycle. Besides that, thiamine has been shown to be involved in plant protection against stress. In this study, the level of expression of THIC and THI1/THI4, the genes for the first two enzymes in the thiamine biosynthesis pathway were observed when oil palm ( Elaeis guineensis ) was subjected to oxidative stress. Primers were designed based on the consensus sequence of thiamine biosynthesis genes obtained from Arabidopsis thaliana , Zea mays , Oryza sativa , and Alnus glutinosa ...
March 2018: Tropical Life Sciences Research
https://www.readbyqxmd.com/read/29644015/diversity-of-bats-in-contrasting-habitats-of-hulu-terengganu-dipterocarp-forest-and-setiu-wetland-bris-forest-with-a-note-on-preliminary-study-of-vertical-stratification-of-pteropodid-bats
#12
Grace Pounsin, Nur Syahirah Wahab, Azuan Roslan, Muhamad Aidil Zahidin, Elizabeth Pesiu, Nur Aida Md Tamrin, M T Abdullah
A study of the bat diversity was conducted in Hulu Terengganu dipterocarp forest and Setiu Wetland Beach Ridges Interspersed with Swales (BRIS) forest in Terengganu, to study the species diversity, composition and stratification of fruit bats from the understorey to the forest canopy. Mist nets were set up at the understorey, sub-canopy and canopy layer while harp traps were set up at the understorey layer. We recorded 170 individuals from six families' compromised 21 species from Hulu Terengganu dipterocarp forests and four species from Setiu Wetland BRIS forests throughout the sampling period...
March 2018: Tropical Life Sciences Research
https://www.readbyqxmd.com/read/29644014/genome-organization-of-escherichia-phage-yd-2008-s-a-new-entry-to-siphoviridae-family
#13
Dharmela Sellvam, Nyok Sean Lau, Yahya Mat Arip
Malaysia is one of the countries that are loaded with mega biodiversity which includes microbial communities. Phages constitute the major component in the microbial communities and yet the numbers of discovered phages are just a minute fraction of its population in the biosphere. Taking into account of a huge numbers of waiting to be discovered phages, a new bacteriophage designated as Escherichia phage YD-2008.s was successfully isolated using Escherichia coli ATCC 11303 as the host. Phage YD-2008.s poses icosahedral head measured at 57nm in diameter with a long non-contractile flexible tail measured at 107nm; proving the phage as one of the members of Siphoviridae family under the order of Caudovirales ...
March 2018: Tropical Life Sciences Research
https://www.readbyqxmd.com/read/29644013/effect-of-functionalised-and-non-functionalised-carbon-nanotubes-urea-fertilizer-on-the-growth-of-paddy
#14
Norazlina Mohamad Yatim, Azizah Shaaban, Mohd Fairuz Dimin, Faridah Yusof, Jeefferie Abd Razak
The roles of multi-walled carbon nanotubes (MWNTs) and functionalised multiwalled carbon nanotubes (fMWNTs) in enhancing the efficacy of urea fertilizer (UF) as plant nutrition for local MR219 paddy variety was investigated. The MWNTs and fMWNTs were grafted onto UF to produce UF-MWNTs fertilizer with three different conditions, coded as FMU1 (0.6 wt. % fMWNTs), FMU2 (0.1 wt. % fMWNTs) and MU (0.6 wt. % MWNTs. The batches of MR219 paddy were systematically grown in accordance to the general practice performed by the Malaysian Agricultural Research and Development Institute (MARDI)...
March 2018: Tropical Life Sciences Research
https://www.readbyqxmd.com/read/29644012/abundance-fishing-season-and-management-strategy-for-blue-swimming-crab-portunus-pelagicus-in-pangkajene-kepulauan-south-sulawesi-indonesia
#15
Eko Sri Wiyono, Ihsan
In order to manage blue swimming crabs in Pangkajene Kepulauan, management measures are required. Since the environment which affects the abundance of the blue swimming crab varies seasonally, it is necessary to take into account the seasonal nature with the aim of developing a management strategy. The objectives of this study are to define the abundance of and fishing season of blue swimming crabs in the Pangkajene Kepulauan waters, South Sulawesi, Indonesia. The fishing season was analysed using seasonal index analysis, while fish abundance was analysed by means of Equilibrium-Schaefer...
March 2018: Tropical Life Sciences Research
https://www.readbyqxmd.com/read/28890771/a-preliminary-survey-of-species-composition-of-termites-insecta-isoptera-in-samunsam-wildlife-sanctuary-sarawak
#16
Norsyarizan Jamil, Wan Nurainie Wan Ismail, Siti Shamimi Abidin, Mazdan Ali Amaran, Ratnawati Hazali
A survey on termite species composition was conducted in Samunsam Wildlife Sanctuary, Sarawak in February 2015. Overall 19 species of termite belonging to 13 genera and 8 subfamilies was found in the sanctuary. It was recorded the subfamily of Termitinae had the highest number of species (6 species, equal to 31.58% of total species), followed by Nasutermitinae (3 species, 15.79%), Macrotermitinae, Amitermitinae, Rhinotermitinae, Coptotermitinae, (2 species, 10.53% respectively), and Heterotermitinae, Termitogetoninae (1 species, 5...
July 2017: Tropical Life Sciences Research
https://www.readbyqxmd.com/read/28890770/using-non-supervised-artificial-neural-network-for-determination-of-anthropogenic-disturbance-in-a-river-system
#17
Nurul Ruhayu Mohd Rosli, Khairun Yahya
The study of river water quality plays an important role in assessing the pollution status and health of the water bodies. Human-induced activities such as domestic activities, aquaculture, agriculture and industries have detrimentally affected the river water quality. Pinang River is one of the important rivers in Balik Pulau District that supplies freshwater for human consumption. A total of 442 physical and chemical parameters data of the Pinang River, Balik Pulau catchment were analysed to determine the sources of pollutants entering the river...
July 2017: Tropical Life Sciences Research
https://www.readbyqxmd.com/read/28890769/pollen-load-and-flower-constancy-of-three-species-of-stingless-bees-hymenoptera-apidae-meliponinae
#18
Norita Widya Pangestika, Tri Atmowidi, Sih Kahono
The genera of stingless bees play an important role as pollinators of plants. These bees are actively involved in the pollination of agricultural crops and known to have preferences in selecting flowers to pollinate. The aims of this study were to analyse the pollen load and flower constancy in Tetragonula laeviceps , Lepidotrigona terminata , and Heterotrigona itama . Each individual of species stingless bees collected and was put in a 1.5 mL micro-tube contain 0.5 mL 70% ethanol:glycerol (4:1). Pollen loads on each individual of stingless bees was counted by hemocytometer...
July 2017: Tropical Life Sciences Research
https://www.readbyqxmd.com/read/28890768/isochrysis-maritima-billard-and-gayral-isolated-from-penang-national-park-coastal-waters-as-a-potential-microalgae-for-aquaculture
#19
Mohammad Basri Eshak, Wan Maznah Wan Omar
The importance of polyunsaturated fatty acid (PUFA) in microalgae was widely reported. In this study, six isolated microalgae from Teluk Aling, Penang National Park were screened for PUFA contents. Isochrysis maritima showed the best polyunsaturated fatty acids essential for aquaculture species compared to other microalgal species tested. This species is a good choice as aquaculture feed due to its small size (3-7 μm), which is appropriate size for ingestion. The maximum specific growth rate of this species was also high (0...
July 2017: Tropical Life Sciences Research
https://www.readbyqxmd.com/read/28890767/application-of-aquatic-insects-ephemeroptera-plecoptera-and-trichoptera-in-water-quality-assessment-of-malaysian-headwater
#20
Suhaila Ab Hamid, Che Salmah Md Rawi
The Ephemeroptera, Plecoptera and Trichoptera (EPT) community structure and the specific sensitivity of certain EPT genera were found to be influenced by water parameters in the rivers of Gunung Jerai Forest Reserve (GJFR) in the north of peninsular Malaysia. The scores of EPT taxa richness of >10 in all rivers indicated all rivers' habitats were non-impacted, having good water quality coinciding with Class I and Class II of Malaysian water quality index (WQI) classification of potable water. The abundance of EPT was very high in Teroi River (9,661 individuals) but diversity was lower (22 genera) than Tupah River which was highly diverse (28 genera) but lower in abundance (4,263 individuals)...
July 2017: Tropical Life Sciences Research
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