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Journal of Tropical Life Science : International Journal of Theoretical, Experimental, and Applied Life Sciences
Published by Universitas Brawijaya
ISSN : 20875517     EISSN : 25274376     DOI : -
Core Subject : Agriculture, Social,
Agriculture, Biological Sciences & Forestry Environmental Science
The Journal of Tropical Life Science (JTLS) provides publication of full-length papers, short communication and review articles describing of new finding or theory in living system, cells and molecular level in tropical life science and related areas. The journal publishes articles that report novel findings of wide Tropical Life system phenomenon in the areas of biodiversity, agriculture, fisheries, health, husbandry, forestry and environmental technology. JTLS has 1 volume with 3 issues per year.
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Articles 11 Documents
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Search results for , issue "Vol 3, No 2 (2013)" : 11 Documents clear
Study of Arthropod Communities in A Virginia Tobacco Agro-Ecosystem Thei, Ruth Stella; Abadi, Abdul Latief; Mudjiono, Gatot; Suprayogo, Didik
Journal of Tropical Life Science Vol 3, No 2 (2013)
Publisher : Journal of Tropical Life Science

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Abstract

The cultivation of tobacco is one of users of agro-chemical substances such as insecticides, herbi-cides, defoliants, and fertilizers among other food crops and plants with high economical value. The use of these chemicals may bring negative effects regarding the richness and abundance of arthropods. The study of arthropod community in the Virginia tobacco ecosystem was carried out in Central Lombok, West Nusa Tenggara Province, during the 2010 plantation year. It was aimed at finding the composition, structure, and dynamic of the arthropod diversity around the tobacco field. Samples were obtained by using trapping techniques (pitfall traps, yellow-pan traps, and sweep net). The number of arthropods found in Virginia tobacco field are 69, consisting of 65 species of insects (belonging to 46 families and 8 orders) and 4 species of spiders (belonging to 4 families). The majority of insects found was Hymenoptera, dominated by bees. Based on the ecological functions, the major group of arthro-pods documented was phytophagous (20 species), mostly Coleoptera and Orthoptera. Yet, the number of predators was relatively more abundant than that of the phytophagous. The number of kinds of ar-thropods commonly interacting around the field fluctuated during the growing period, while in the cultivation period the number decreased. The diversity of the species (H) and the ratio of abundance of the natural enemies and phytophagous in the field was high.
Degradation of Riparian Tree Diversity on Spring Fed Drains and Its Impacts to Water Quality, East Java Semiun, Chatarina Gradict; Arisoesilaningsih, Endang; Retnaningdyah, Catur
Journal of Tropical Life Science Vol 3, No 2 (2013)
Publisher : Journal of Tropical Life Science

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Abstract

This research aimed to determine the impact of degradation riparian tree diversity on water quality along some spring to its drains in East Java. This descriptive research conducted in selected springs and itsdrains in Jember, Kediri, Pasuruan, and Malang on April 2012 to January 2013. We used a spring water of Meru Betiri National Park as a reference site. Quality of riparian trees diversity and water were sampled with three replication.Data were tabulated by statistical analyzed using cluster and Spearman correlation. The result showed that species richness ofriparian tree in spring water and its drains has found were 69 species belonging to 28 families. Moraceae was key family of natural riparian tree and almost all the spring and its drains (92.75 %) were grown by native trees except in Kediri. All observed spring were degrading comparing to the natural one in Meru Betiri National Park where trees grown in strata A to E, and shown a highest diversity index (H=3.2). All water spring were observed in high quality but water in its downstream become turbid depend on the quality of treesriparian diversity grown around spring waters. Quality of riparian diversity was strongly influenced by land use and human activities such as illegal logging, intensive agriculture, and settlement. There was a positive correlation between riparian tree diversity, water transparency and color, but it had a negative correlation with pH value of water.Low pH, high water transparency and colorless water were found in stations where we found high tree species richness, diversity index, riparian width and stratified of tree.Keywords: Diversity quality, riparian tree, spring water , water quality.
Ethnobotanical Investigation for Conserving Home Gardens Plants Species in Tambakrejo Sumbermanjing Wetan, Southern of Malang Pamungkas, Ratih Nila; Hakim, Luchman
Journal of Tropical Life Science Vol 3, No 2 (2013)
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Abstract

In developed countries, traditional knowledge of indigenous people is being widely threatened by current trends of economic globalization especially in destination tourism area such as Tambakrejo village, Sumbermanjing Wetan, Malang. This region includes Sempu Island as well as proposed protected area. Investigation aims were to know diversity of plants species that arranged home garden, used value of each plant species using ethnobotany indexes, and also to describe their methods of preparation and use of the significant plant. The study represents the first step to documenting significant utilitized of the species plant in home garden based on indigenous knowledge before it disappears. Data were collected by depth and semi structured interviews. Informations were about traditional uses of wild plants also cultivated ones. All the collected data were filled in a analytical table and for easier, data was grouped into ten categories, then continued with detailed of use. Data was calculated by using synthetic indexes, those are Relative Frequency of Citation (RFC) and Cultural Importance Index (CI). One hundred and one plants were cited by the informants as being traditionally used in the area. These 100 ethnospecies belonging to 45 families. From 10 categories, most of them concerning allimentary, medical and economic plants. For the allimentary plants, 316 citation, 58 species and 5 different uses were recorded. While for the medical plants, there were 63 citations, 22 species and 4 different uses categories. A few plants species for others categories like erotion control. The study shows that traditional uses for plants especially at home garden still survives as part of the cultural heritage of the community, economic and also for daily activity. Keywords:Ethnobotanical, Home garden, Traditional knowledge
AT3 (Acyltransferase) Gene Isolated From Capsicum frutescens cv. Cakra Hijau Habibi, Mohamad; Manggabarani, Andi Madhihah; Sulasmi, Eko Sri; Listyorini, Dwi
Journal of Tropical Life Science Vol 3, No 2 (2013)
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Abstract

Chili pepper is widely used and cultivated by Indonesian people. There are three species of chili pepper, i.e.: Capsicum annuum L., Capsicum frutescens L., and Capsicum violaceum HBK. Capsicum frutescens L. has a higher economic value due to its pungency and carotenoid content. C. frutescens has several cultivars, one of those is Capsicum frutescens cv. Cakra Hijau. This cultivar is resistant against pest and disease and has very high pungency. This special character of chili pepper is born by its secondary metabolic, Capsaicin. Moreover, capsaicin also serves as defense mechanism, antiarthritis, analgesic, and anticancer. This study aimed to isolate Acyltransferase (AT3) gene which encoding Capsaicin Synthase (CS) enzyme. AT3 gene was isolated through PCR using forward primer 5-ATG GCT TTT GCA TTA CCA TCA-3 and reverse primer 5-CCT TCA CAA TTA TTC GCC CA-3. Data were analyzed using DNA Baser, BLAST, and ClustalX. This study has successfully isolated 404 bp fragments of AT3 gene. This fragments located at 1918-1434 bp referred to AT3 gene from Capsicum frutescens cv. Shuanla. Isolation of upstream and downstream fragments of AT3 gene from Capsicum frutescens cv. Cakra Hijau is undergoing.
Morphological Study for Identification Improvement of Poeciliidae Family Based on Gonopodium structures and Morphometric analysis Rahayu, Dwi Anggorowati; Listyorini, Dwi; Ibrohim, Ibrohim
Journal of Tropical Life Science Vol 3, No 2 (2013)
Publisher : Journal of Tropical Life Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/jtls.3.2.%x

Abstract

Poeciliidae family consists of small live-bearer fishes with sexual dimorphic. This fishes are widely distributed across Indonesian archipelago, but biological studies on this fish are very limited. This research is aimed to identify the species of Peciliidae fishes which lives in Sari Lake Pasuruan based on gonopodium structures and morphometric analysis. A specific characteristic of the Poeciliidae family is its gonopodium structures which is a modification of 3rd, 4th, and 5th rays of the males anal fin. Each species represented 50 samples male and female from each type we found and measured 26 characters (in mm). Cladogram based on morphometric measurements showed that sample 1 and 2 had 100% similarity, sample 3 had 94% similarity with sample 1 and 2. Sample 4 had 54% similarity with sample 1, 2, and 3. Based on gonopodium structures sample 1 and sample 2 included Xiphophorus hellerii Heckel possess large claw on the terminus of ray 5 hook is small crescent-moon shaped on 3rd ray and lacking of gonopodium palp, sample 3 possesses distal platform with 11 retrosse serrae,and membranous hook so we were able to identify the sample 3 as Poecilia mexicana Steindachner, whilst sample 4 was Poecilia reticulata Peter had a long-pointed comb-like spines on ray 3rd and and has a small hook on the tip of 5p ray.
The Spread of Non-native Plant Species Collection of Cibodas Botanical Garden into Mt. Gede Pangrango National Park Zuhri, Musyarofah; Mutaqien, Zaenal
Journal of Tropical Life Science Vol 3, No 2 (2013)
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Abstract

The role of botanic garden in spread of non-native plant species has concerned of international worldwide. This study aimed to study the extent of non-native plant species from Cibodas Botanical Garden (CBG) which invades into natural rainforest. A line transect was made edge-to-interior with 1,600 m in distance from CBG boundary. Result showed that distance from CBG was not significant in correlation with non-native tree and treelet density. Furthermore, presence of existing CBGs plant collection was not a single aspect which influenced presence and abundance. Three invasive species possibly was escape from CBG and it showed edge-to-interior in stems density, i.e. Cinchona pubescens, Calliandra calothyrsus and Cestrum aurantiacum. The patterns of non-native species were influenced by presence of ditch across transect, existence of human trail, and the other non-native species did not have general pattern of spread distribution. Overall, botanical gardens should minimize the risk of unintentional introduced plant by perform site-specific risk assessment.
Discussing implications of fast depleting rural ponds on the globally threatened wetland winter migratory bird in Haryana: a Case Study of Nigdu village pond in Karnal District Gupta, Rohtash Chand; Kaushik, Tirshem Kumar
Journal of Tropical Life Science Vol 3, No 2 (2013)
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Butterflies Diversity in Brawijaya University, Veteran, Jakarta and Velodrom Green Open Space Nisa', Ayu Raisa Khairun; Mukti, Minahanggari; Hamzah, Muhammad Fathoni; Mustakim, Arif; Abidin, Zainal
Journal of Tropical Life Science Vol 3, No 2 (2013)
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Abstract

Butterflies have some roles in environmental as pollinator and bioindicator. Habitat is one of important factor to support butterflies growth. The aim of this research was to describe butterflies diversity in some green open spaces in Malang. Direct observations of butterflies diversity, vegetation structures and abiotic factors in Brawijaya University, Veteran, Jakarta and Velodrom Green Open Space were conducted on June 2012. Sampling was took place in each sites using cruising method in three times observation at 07.00, 11.00 a.m. and 3.30 p.m . Data were analyzed by statistical descriptive using Microsoft Excel 2007 and PAST. The result showed that butterflies composition in all sites dominated by Delias sp., Leptosia nina and Eurema venusta. The diversity index of all sites showed moderate rank that indicate communities equilibrium in environment was still good. In this case, Velodrom Green Open Space has the highest one of diversity index, it was about 2,199. Brawijaya University and Jakarta Green Open Space have a high similarity index based on Morisita Index. The highest abundance of butterflies was observed at 11.00-12.30 a.m. Delias sp. and Leptosia nina has temporal spread all day long, while Eurema venusta just in day light.
Reduction of Cadmium Uptake of Rice Plants Using Soil Amendments in High Cadmium Contaminated Soil: A Pot Experiment Siswanto, Dian; Suksabye, Parinda; Thiravetyan, Paitip
Journal of Tropical Life Science Vol 3, No 2 (2013)
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Abstract

The aims of this study were to investigate the effect of agricultural residues on reducing cadmium uptake in rice plants. The rice plants growing on no cadmium/free cadmium soils (N), Cd soils (Cds), and Cd soils each amended with 1% w/w of coir pith (CP), coir pith modified with sodium hydroxide (CPm) and corncob (CC) under high cadmium contaminated soil with an average 145 mg Cd kg-1 soil were investigated. The results showed that the cumulative transpiration of rice grown in various treatments under high cadmium contaminated soil followed the order: Cds > CPm ≥ CP ≥ CC. These transpirations directly influenced cadmium accumulation in shoots and husks of rice plants. The CC and CP seemed to work to reduce the cadmium uptake by rice plants indicated by accumulated cadmium in the husk that were 2.47 and 7.38 mg Cd kg-1 dry weight, respectively. Overall, transpiration tended to drive cadmium accumulation in plants for rice grown in high cadmium contaminated soil. The more that plants uptake cadmium, the lower cadmium that remains in the soil. Keywords: Transpiration, Cadmium Uptake, Rice plant, Agricultural Residues
Anatomical and Cytological Features of Spathoglottis plicata from Java Island Chikmawati, Tatik
Journal of Tropical Life Science Vol 3, No 2 (2013)
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Spathoglottis plicata is a ground orchid that displays large variation in flower features. In spite of large variation on morphological characters, its anatomical and cytological characters are not well known. This paper described the leaf anatomical and chromosomal features of S. plicata. Leaf anatomy was observed from both transverse and paradermal sections of leaves. Chromosome numbers were observed from root tip cells. Epidermis of all S. plicata variants comprised of two cell shapes, the rectangle cells located above veins, while the polygonal one located in between veins. Stomatal type was brachitetracyclic, which were only found on lower epidermis. Leaf transversal section comprised of one layer of upper and lower epidermis, spongy mesophyll, and vascular tissue. The number of leaf hair varied depended on the original habitat and altitute. All variants of S. plicata had same chromosome number (2n=40).

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