cover
Contact Name
-
Contact Email
-
Phone
-
Journal Mail Official
-
Editorial Address
-
Location
Kota malang,
Jawa timur
INDONESIA
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,
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.
Arjuna Subject : -
Articles 238 Documents
Non-breeding Ethology of Spot-billed Pelican (Pelecanus philippensis) at Adyar Eco-Park, Chennai, India Bandyopadhyay, Meghna; Basu Roy, Rishin; Chatterjee, Arijit
Journal of Tropical Life Science Vol 4, No 3 (2014)
Publisher : Journal of Tropical Life Science

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The Capability of Equisetum ramosissium and Typha angustifolia as Phytoremediation Agents to Reduce Nitrate-Phosphate Pollutants and Prevent Microcystis Blooming in Fresh Water Ecosystem Vidayanti, Viky; Retnaningdyah, Catur; Soeharjono, Soeharjono
Journal of Tropical Life Science Vol 2, No 3 (2012)
Publisher : Journal of Tropical Life Science

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The aim of this study is to find out the kind of hydromacrophyte composition having the highest capability to reduce nitrate-phosphate pollutant and Microcystis growth in phytoremediation media using Equisetum ramosissium, Typha angustifolia and the combination of both. Microcystis were obtained from Sutami reservoir, then being inoculated in a media grown by hydromacrophytes (E. ramosissium, T. angustifolia and both of the hydromacrophytes) in the batch culture system. The number of Microcystis was counted every day within fifteen days. Abiotic factors were observe, including the concentration of nitrate using brucine-colorimetry method and orthophosphate (dissolved phosphate) using stannous chloride-colorimetry method on day 0, 6th, 12th and 15th. The growth rate of Microcystis carrying capacity and orthophosphate-nitrate levels among treatments were analysed by ANOVA test. The results showed that E. ramosissium and T. angustifolia in mono and polyculture techniques had similar potentiality to reduce the nitrate and ortophosphate. The concentrations of nitrate and orthophosphate decreased over 70 % in the 6th day after incubation. All of the treatments were able to reduce the carrying capacity of Microcystis up to 46 % , but the growth rates were similar in all media, that is, around 97-170 cells/L/day. Keywords: Equisetum ramosissium, Microcystis, nitrate, phosphate, Typha angustifolia
Nutritional Content and Characteristics of Antimicrobial Compounds from Fermented Oil Palm Fronds (Elaeis guineensis Jacq.) Febriana, Dewi; Zam, Syukria Ikhsan; Febriyanti, Rahmi; Zumarni, Zumarni; Juliantoni, Jepri; Fatah, Abdul
Journal of Tropical Life Science Vol 10, No 1 (2020)
Publisher : Journal of Tropical Life Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/jtls.10.01.04

Abstract

This research was conducted to determine physical quality, the nutritional quality and characteristics of antimicrobial compounds from fermented oil palm fronds (FOPF). This research was carried out using a Complete Randomized Design with 4 treatments and 4 replications. The following treatments were performed by the addition of different additives namely: 10% poultry manure, 10% cow feces, 5% urea and 5% molasses. All treatments were extracted in stages using n-hexane, ethyl acetate and methanol. The observed parameters were physical quality (pH, aroma, color, and texture), nutritional quality (neutral detergent fiber (NDF), acid detergent fiber (ADF), hemicellulose, cellulose and lignin), yield of extract, class of bioactive compounds and the antimicrobial activity test of extracted compounds. The data were analyzed using a one-way analysis of variance and differences between treatments were tested using Duncan's multiple range test. The addition of different additives has a very significant effect (P < 0.01) on the lignin content; significant effect (P < 0.05) on pH, aroma, color and texture; and no effect on the content of NDF, ADF, hemicellulose and cellulose. The highest yield of extract was obtained from methanol extract with the addition of poultry manure. The methanol extract on the addition of poultry manure and urea were identified as compounds in the steroid, tannin and phenolic classes. The highest antimicrobial activity test against Escherichia coli (12.83 mm) was obtained from FOPF extract (1%) with addition of poultry manure, while highest antimicrobial activity test against Staphylococcus aureus (11.67 mm) was obtained from FOPF extract (4%) with addition of molasses. The conclusion of this research was FOPF with addition of poultry manure provides good physical quality, nutritional quality and can inhibit the growth of E. coli and S. aureus at a concentration of 1%.
Promegranate Peel as Prophylactic Agent of Rheumatoid Arthritis : Study on MMP-9, IL-6, TNF- α, and Arthritic Score of Rheumatoid-arthritic Rats Wahyuningsih, Doti; Amilia, Annisa; Amiruddin, Meilano Setiawan; Cahyaningrum, Asri; Kurniasari, Laili Cinthianur
Journal of Tropical Life Science Vol 10, No 1 (2020)
Publisher : Journal of Tropical Life Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (169.218 KB) | DOI: 10.11594/jtls.10.01.08

Abstract

Rheumatoid arthritis (RA) is a joint disease, chronically cause permanent joint impairment leading to inability of daily life activities. Early diagnosis and preven-tive managements of RA are recommended to overcome the disease. The current drugs provide benefits for RA patients, unfortunately could not be used for long period and as prevention agents, due to the adverse effects.  Even though clinical and laboratory studies of pomegranate for osteoarthritis and RA had been done, the effects of the pomegranate peel on MMP-9, TNF-α, and IL-6 of RA are still unrevealed. TNF-α promotes inflammation process in RA and collaborates with osteoclasts to trigger osteoporosis. IL-6 shows negative effect on osteoblasts dif-ferentiation and MMP-9 stimulates cartilage degradation and inflammation mediat-ed by synovial fibroblast. This study measured TNF-α, IL-6, MMP-9, and arthri-tis score (AS) of RA rats treated with ethanolic extract of pomegranate peel (EPP) to evaluate its potency as a RA prevention agent. Male Lewis rats (three groups, five each), 200 g, received 80 mg, 160 mg, and 320 mg of EPP/rat respectively, in alternate day, within 60 days. On the 30th day, the rats were subcutaneously in-jected with 0,1 ml mycobacterium-complete Freund’s adjuvant (1 mg/mL) on plan-tar of the right hind paws to induce RA. Serum IL-6 and TNF-α were determined by ELISA.  Immunohistochemistry processed-synovial MMP-9 slices of ankle joints were evaluated by light microscope (400× magnification).  Arthritis score of Smit was used to determined AS. Data were analyzed by Kruskall Wallis, Mann Whitney U, and Pearson correlation test. p < 0.05 was significant. The EPP of 320 mg corrected serum TNF-α and IL-6, and synovial MMP-9 of RA rats (p < 0.05). No significant change was observed in arthritic score following the EPP treatment (p > 0.05). In conclusion, the results indicate the EPP may potential to be devel-oped as preventive agent of rheumatoid arthritis.
Identification of Potential Pathogen Bacteria Causing Tuber Rot in Porang (Amorphophallus muelleri Blume) Aini, Afifah Nur; Azrianingsih, Rodiyati; Mustafa, Irfan
Journal of Tropical Life Science Vol 10, No 2 (2020)
Publisher : Journal of Tropical Life Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (357.245 KB) | DOI: 10.11594/jtls.10.02.02

Abstract

Tuber rot has been reported as one of the limiting factors to porang (Amorphophallus muelleri Blume) tuber production. Bacterial infection is one of the main causes of tuber rot during storage. In this study, a total of seven bacterial isolates obtained from porang tubers were tested for their potency to cause rotting on porang tubers. Porang tubers were immersed in bacterial suspension and incubated for 14 days. The physical properties of the tubers such as texture and color, and the chemical properties such as reducing sugar and ethanol content were determined at the end of incubation period. All infected tubers were soft, slimy and darker. Two isolates, T4 and T9A, had the highest potency to cause tuber rot indicated by the significantly higher reducing sugar content (14.38 and 15.32 mg/ml) and higher ethanol content (32.17 and 35.05%) compared to control tubers which were not infected with bacteria. Both isolates were identified as Bacillus altitudinis and Pseudomonas stutzeri, respectively, based on 16S rDNA sequence analysis.
Saras Cranes in Palwal District in Southern Haryana Are Asking For Immediate Attention for Their Last Rescue Efforts Kaushik, Tirshem Kumar; Gupta, Rohtash Chand; Vats, Parveen Kumar
Journal of Tropical Life Science Vol 5, No 2 (2015)
Publisher : Journal of Tropical Life Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/jtls.05.02.04

Abstract

Saras Cranes Grus antigone are endangered birds of open wetlands with highly worrying depletion trends being witnessed related with disappearance of marshy and shallow perennial, expansive wetlands throughout northern India. Alongside, massive hunting in 18th, 19th and 20th centuries and even today is another serious cause for their worrisome deterioration. Also, destruction of nests, eggs, fledglings and adults by aboriginals indeliberately or deliberately is causing these cranes to perish sooner than latter, completely.Now, Saras Cranes are found in limited number and domain as four populations in the entire world including India, China, Burma, South East Asia and northern Australia. In so far as Indian Saras Crane population is concerned, it is pitiably restricted to only few hundred in all, in Etawa, Mainpuri districts of Uttar Pradesh, Kanha National Park near Bharatpur in Rajasthan, some parts of Gujarat in the west and Assam in the east.It is interesting to note that few pairs have been seen in Faridabad and Palwal districts in southern Haryana, India. These need to be protected and conserved
Length Weight Relationship and Relative Condition Factor Study in Sahyadria chalakkudiensis Inhabiting Western Ghat River Systems of South India Pulapparambil, Anju; Nirichan, Mini Sekharan; Mahadevan, Harikrishnan; Karuppaswamy, Sariga Palacode
Journal of Tropical Life Science Vol 10, No 1 (2020)
Publisher : Journal of Tropical Life Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/10.01.09

Abstract

A trend on unethical and unsustainable use of resources to meet the high demand in the trade of indigenous ornamental fishes is widespread. This increased exploitation calls for regulation. Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES), an apex body having a central role in regulating the trade of any living organisms including indigenous ornamental fishes and preventing the species from being left as extinct. To enlist a species in trade by CITES, formulation of baseline data on its biology, population size, length-weight relations, condition factor, and habitat ecology are necessary. This paper looks into one such consideration on Sahyadria chalakkudiensis inhabiting Western Ghat rivers of Kerala. The length-weight relationships in respect of males and females inhabiting Chalakudy river are expressed as LogW = -3.800 + 2.43 LogL and LogW = -4.333 + 2.69 LogL while the same in males and females inhabiting Pooyamkutty river are LogW = -4.545 + 2.76 LogL and LogW = -5.290 + 3.12 LogL respectively .There is a regular seasonal cycle in relative condition factor with a peak in August (Kn=1.33; Chalakudy population) and September (Kn = 1.15; Pooyamkutty population).The results indicated that management of stock of S. chalakkudiensis is very essential to ensure sustainability of its trade.
OPTIMIZATION OF CULTURE CONDITIONS FOR GROWTH OF MARINE PHYTOPLANKTON Maharajan, Kunguma Kannika; Karthikeyan, Panneerselvam; Marigoudar, Shambanagouda Rudragouda; Sharma, Krishna Venkatarama; Revathi, Kasthuri
Journal of Tropical Life Science Vol 10, No 1 (2020)
Publisher : Journal of Tropical Life Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/jtls.10.01.10

Abstract

The present study investigated the optimum levels of ambient temperature, salinity and light intensity for the growth of marine diatoms and microalgae. The marine diatoms Thalassiosira subtilis, Entomoneis paludosa and microalgae Isochrysis galbana were optimized for the growth. Subcultures were prepared in filtered natural seawater enriched with f/2 media for diatoms and Conway media for I.galbana. Cultures were grown under three different levels of three parameters consists of 27 combinations in 96 well plates. Ten replicates of cultures were maintained for each combination of ambient levels. The algal density was determined by spectrometric absorbance of culture at 680 nm. Likewise, the growth was estimated from the rate of increase in the absorbance values over a period of time. The durations of growth differed between the species. The I.galbana was grown for prolonged culture duration up to 15 days followed by E.paludosa with 12 days and T.subtilis with 8 days. Levels of ambient temperature and light intensity are the driving parameters for optimum growth of the species studied while the optimum salinity of 30 psu was observed for all species.Ambient levels of 28 °C, 30 psu and 2500 lux were found optimum for the growth of T. subtilis and E.paludosa attained its optimum growth at 24 °C, 30 psu and 2500 lux. The higher light intensity (4500 lux) hasenhanced the growth of I.galbanaalong with 24 °C of temperature and 30 psu of salinity.
Evaluation of the Quality of Coastal Ecosystems in the Spermonde Archipelago Using Macroalgae as Indicators Hamzah, Rispah; Hakim, Luchman; Retnaningdyah, Catur
Journal of Tropical Life Science Vol 10, No 2 (2020)
Publisher : Journal of Tropical Life Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (442.445 KB) | DOI: 10.11594/jtls.10.02.04

Abstract

The quality of water in Spermonde Archipelago, South Sulawesi has decreased as a result of high human activities and land use, this can have an impact on the life of marine biota. Macroalgae is suitable for bioindicators because they live in a sessile manner, can accumulate metals and distributed widely. This research aimed to determine coastal ecosystem quality by using macroalgae as indicators on five islands that had different anthropogenic stresses. The research was carried out in April 2019 on Barrang Caddi, Bonebatang, Barrang Lompo, Kodingareng Keke, and Badi Islands. Community structures observed included taxa richness, diversity, evenness, dominance of macroalgae and physicochemical parameters (temperature, turbidity, pH, salinity, DO, BOD, H2S, oil, grease, total Phosphate, and nitrate) as well as the measurement of the ecological condition using Quality of Rocky Bottoms (CFR) index. The results showed that physicochemical parameters (temperature, turbidity, pH, salinity, DO, H2S, oil, grease, total Phosphate) of the water still met the quality standards of sea water based on Decree of the State Minister for Environment No. 51/2004 for marine biota and other standards for macroalgae growth. BOD and nitrate have exceeded sea water quality standards for marine biota (20 mg/L for BOD and 0.008 mg/L for nitrates). A total of nine species of macroalgae were found in Barrang Caddi and Badi Island, three species in Bonebatang, and five species in Kodingareng Keke and Barrang Lompo Island. The result of Principal Component Analysis (PCA) and Biplot showed that physicochemical water quality has an influence on the macroalgae community structure. While the CFR index shows Barrang Caddi and Badi Island have poor ecological conditions and Bonebatang, Barrang Lompo, and Kodingareng Keke have bad ecological condition.
Endoglin Expression and the Level of Tgf-Î’ Are Increased In the Placental Tissue and Correlated with Low Fetal Weight in Malaria Infected Mice sasmito, sujarot dwi; Ulfiati, Adilah; Wardana, Ardhian; Nugraheni, Fitriana; Pradiptasari, Nur Fahma; Zulaifa, Zakiyah; Norahmawati, Eviana; Sardjono, Teguh Wahju; Fitri, Loeki Enggar
Journal of Tropical Life Science Vol 5, No 1 (2015)
Publisher : Journal of Tropical Life Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/jtls.5.1.%x

Abstract

Malaria infection during pregnancy can cause accumulation of infected-red blood cells in placental intervillous space and induces placental tissue inflammation and hypoxia. This condition triggers endoglin expression, and release of soluble endoglin which can interfere TGF-β binding to its receptor. The aim of this study was to investigate the correlation between placental endoglin expression and TGF-β level with low fetal weight (LFW) in malaria-infected mice. Nine pregnant mice infected with Plasmodium berghei on the day 9th post mating (malaria infected group) and eight normal pregnant mice (non-infected group) were used in this study. The mice were sacrificed on the day 18th post mating, and all fetal body weights were measured by analytical scale. Enzyme Link Immunosorbent Assay (ELISA) was done to determine the level of placental TGF-β while immunohistochemical staining was performed to examine endoglin expression in placental tissue. The mean of fetal body weights of malaria infected group was significantly lower than non-infected group (p=0,002), while the expression of placental endoglin in malaria infected group was significantly higher than non-infected group (p=0.003). The level of placental TGF-β in malaria infected group was also higher than non-infected group but the difference was not significant (p=0.064). Pearson correlation test showed that there were significant negative correlations between fetal body weights with the level of placental TGF-β (p=0.017, r=-0.568) and the expression of placental endoglin (p=0.002, r=-0.694). Malaria infection in pregnant mice will increase both TGF- β and endoglin in placenta tissue and correlate with low fetal weight.   

Page 1 of 24 | Total Record : 238