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INDONESIA
Journal of Tropical Biodiversity and Biotechnology
Published by Universitas Gadjah Mada
ISSN : 25409573     EISSN : 25409581     DOI : -
Core Subject : Science, Agriculture, Social,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Environmental Science Immunology & microbiology
Journal of Tropical Biodiversity and Biotechnology (JTBB) is an authoritative source of information concerned with the advancement of tropical biology studies in the Southeast Asia Region. It publishes original scientific work related to a diverse range of fields in tropical biodiversity, functional biology, and biotechnology.
Arjuna Subject : -
Articles 21 Documents
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Search results for , issue "Vol 9, No 3 (2024): September" : 21 Documents clear
Edaphic Characteristics of Rafflesia Habitats in Indonesia: Implications for Conservation and Propagation Siahaan, Febrina artauli; Iryadi, Rajif; Lestari, Dewi
Journal of Tropical Biodiversity and Biotechnology Vol 9, No 3 (2024): September
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jtbb.89231

Abstract

Rafflesia, a holoparasitic and endophytic plant, depends on its host, Tetrastigma spp., for survival, thus highlighting the critical interdependence between these species. Given the endangered status of Rafflesia due to anthropogenic pressures and narrow distribution, comprehensive conservation efforts are crucial. Ecological data on edaphic conditions, particularly the presence of the host, are important for effective conservation strategies. This study assessed soil properties across Rafflesia habitats on Sumatera, Borneo, and Java islands, revealing similarities in pH, carbon, nitrogen, cation exchange capacity (CEC), while the soil texture varied. These findings contribute valuable insights for informed conservation initiatives, both in-situ and ex-situ. 
Utilisation of Snails for Wound Healing: A Review Fadhilah, Diana; Santoso, Putra; Maliza, Rita
Journal of Tropical Biodiversity and Biotechnology Vol 9, No 3 (2024): September
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jtbb.90236

Abstract

Snails exhibit remarkable adaptability, allowing them to flourish in diverse environmental conditions and resulting in thriving populations in specific regions. This abundance has led communities to harness snails for various purposes, including their use as animal feed, daily dietary source, and in traditional wound-healing practices with historical roots. The primary objective of this systematic review is to identify the snail species commonly employed in wound healing and evaluate the bioactivity of compounds derived from different snail species. This review was conducted using literature review method, drawing from international databases such as Scopus, and encompassed publications from 2013 to 2023. A total of 22 articles met the inclusion and exclusion criteria. Snail body parts that have been explored for wound-healing purposes include both the body and the shell, along with snail secretions, particularly their mucus. Various methods have been employed to extract mucus, involving manual stimulation of the snail's body, spraying with a saline solution (NaCl), application of electric shock, and the use of ozone gas through nebulisation. Prominent snail species found to be beneficial for wound healing include Achatina fulica, Helix aspersa, Eobania desertorum, Helix lucurus, Cornu bistrialis, Theba pisana, and Megalobulimus lopesi. These snail species demonstrate potential applications in the treatment of burns, excision wounds, incision wounds, and diabetic ulcers. Key compounds within snail secretions encompass mucopolysaccharides, polyphenols, peptides, and glycosaminoglycans. These compounds exert significant effects on haemostasis, inflammation control, cellular proliferation, and re-epithelialisation, significantly contributing to the wound healing process. 
SiDREB2-based SNAP Marker-Assisted and Multi-Trait Selection in The Early Generation of Foxtail Millet (Setaria italica L. Beauv.) Butarbutar, Lidya Kristina Sari; Syawaluddin, Dwi Dana; Suwarno, Willy Bayuardi; Ardie, Sintho Wahyuning
Journal of Tropical Biodiversity and Biotechnology Vol 9, No 3 (2024): September
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jtbb.90407

Abstract

Setaria italica L. or foxtail millet is known for its nutritious grains and adaptability to unfavorable environmental conditions. High productivity, early heading, medium stature, and tolerance to drought- or salinity stress are among the breeding objectives for foxtail millet. The objective of this study was to select F3 families of foxtail millet from the cross of Botok-10xICERI-6 by weighted selection index and assisted by SiDREB2-based SNAP marker. Genotyping of 178 F3 families using the SiDREB2-based SNAP marker resulted in 29 A/A genotypes, 121 A/G genotypes, and 28 G/G genotypes. Further evaluation was conducted on 48 F3 families consisting of 27 A/A genotypes and 21 A/G genotypes in an augmented randomized complete block design together with their parental genotypes (Botok-10xICERI-6) and three check genotypes (Mauliru-2, NTB-1, and Toraja). Plant height and heading time had high broad-sense heritability, whereas grain weight per plant had a moderate broad-sense heritability. Ten potential F3 families were selected based on a weighted selection index with 20% intensity, comprised of seven A/G genotypes and three A/A genotypes with a weighted selection index ranging from 0.84 to 3.76. The F3 family with pedigree numbers B10I6-15-136, B10I6-15-161, and B10I6-15-70 with A/A genotypes are considered putative transgressive segregants and could be continued to the next generation for further breeding process. 
New Record of A Freshwater Prawn Macrobrachium sundaicum in Selat Panjang Island, Riau Province, Indonesia Purnamasari, Lora; Perwitasari-Farajallah, Dyah; Wowor, Daisy; Farajallah, Achmad; Annawaty, Annawaty
Journal of Tropical Biodiversity and Biotechnology Vol 9, No 3 (2024): September
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jtbb.90449

Abstract

A freshwater prawn M. sundaicum, is an obligate species to acidic peat swamp. Up to the present, M. Sundaicum has only been reported in the West Kalimantan, the Riau Archipelago, and Jambi Provinces in Indonesia. The aim of this research is to determine the distribution and habitat preferences of peat swamp prawn in Selat Panjang Island, Riau Province, Indonesia. The samples were collected in seven peat swamp rivers by hand net. The study yielded one hundred specimens. The acidic peat swamp is a perfect habitat for M. sundaicum. This study provided the basic information about peat swamp prawn in Selat Panjang Island, especially their distribution and habitat preferences. 
Spongia officinalis -Associated Pseudomonas fluorescens as a Reservoir of Bioactive Compounds: A Novel Source of Natural Anticancer Compounds Subbiah, Usharani; Dinakarkumar, Yuvaraj; Jeyaraman, Madhusudhanan
Journal of Tropical Biodiversity and Biotechnology Vol 9, No 3 (2024): September
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jtbb.90693

Abstract

Marine sponges are an important source of chemical variety and a repository of biodiversity. In this study, the microbial communities found in the marine sponge Spongia officinalis that was taken from the Kanyakumari coast in India were explored. We identified, characterized, and evaluated the bioactive potential of the sponge-associated bacteria.  A total of 12 bacterial isolates were obtained, primarily consisting of gram-positive rods and some gram-negative rods and cocci. These bacterial isolates showed a variety of bioactive substances when their secondary metabolites were extracted, including phenols, flavonoids, alkaloids, saponins, terpenoids, and steroids. These chemical compounds are well-known for their numerous biological activity and health benefits. The antioxidant and anticancer effects of these metabolites were also investigated. Isolate 6 showed significant antioxidant activity, suggesting it may be able to treat cancer. With an IC50 value of 55.32 g/ml, this isolate also displayed impressive anticancer activity against HeLa cells. The screened isolate was identified as Pseudomonas fluorescens strain ATCC 13525 using 16S rRNA sequencing. This discovery emphasizes the importance of bacteria associated with marine sponges as a source of bioactive compounds with medicinal potential. The conclusion of this research highlights the diverse microbial communities found in marine sponges and their potential for use in biotechnology and medication development. Pseudomonas fluorescens was found to be a prolific generator of bioactive byproducts, including strong antioxidants and anticancer agents, which emphasizes the significance of additional marine resource exploitation for pharmacologically relevant chemicals. 
Effect of Different Concentrations and Combinations of Benzyl Aminopurine and Indole-3-Butyric Acid on Micropropagation of Vanilla Planifolia Khun, Sokhai; Heng, Chenda; Rien, Sothea; Rien, Sinet; Srean, Pao
Journal of Tropical Biodiversity and Biotechnology Vol 9, No 3 (2024): September
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jtbb.90734

Abstract

Micropropagation of explants in vitro has potency to address propagule demands for promoting large-scale vanilla production. Plant growth regulators (i.e., cytokinin, auxin) are necessary for the plant micropropagation success. Objective of this study is to determine the shoot multiplication and root development of Vanilla planifolia under the influence of different concentrations and combinations of BA and IBA for micropropagation. Sixty stem nodal segments of Vanilla planifolia were cultured on MS medium supplemented with IBA (0, 0.5, or 2.0 mg/L) and combined with BA (0, 0.5, 1.0, or 2.0 mg/L). Shoot multiplication and root induction were measured after 60 days of culture. The results show that the MS medium with 1 mg/L IBA hindered shoot growth, while the medium containing 1 mg/L BA yielded the highest number or weight of shoots per explant. For the root development, supplementing the medium with 0.5 mg/L or 1 mg/L IBA improved root length or number of roots per explant, respectively. This research establishes a valuable approach for vanilla micropropagation by utilising low concentrations of plant growth regulators and a rapid protocol. This paves the way for significant advancements in large-scale commercial production.
Reproductive Behavior and Parental Role of Giant Gourami (Osphronemus goramy Lacepède, 1801) Junior, Timothy Irsyad; Hardaningsih, Ignatius; Bimasuci, Harya; Sari, Dini Wahyu Kartika
Journal of Tropical Biodiversity and Biotechnology Vol 9, No 3 (2024): September
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jtbb.90746

Abstract

The giant gourami (Osphronemus goramy Lacepede, 1801), a popular aquaculture species in Southeast Asia, exhibits unique cooperative biparental care behaviour. To support captive breeding efforts, this study aimed to visually document the reproductive activity of giant gourami, elucidate each stage in detail, and provide insights into the distinct parenting roles of males and females. Underwater cameras were used to observe a breeding pair of gourami in a pond for five days, conducted three times with different pairs during different spawning periods. The male and female contributions to nest building were quantitatively analysed using the T-test, while their parental care involvement was qualitatively assessed and statistically analysed using the Mann-Whitney U test. The results revealed three main phases of giant gourami reproduction: pre-spawning (including adaptation, nest building, and courtship), spawning and fertilisation, and post-spawning with parental care. Our observation confirmed the biparental tendency, with males being more involved in pre-spawning activities and females taking on a prominent role in post-spawning care. In conclusion, males focused on mating preparations and courtship, while females invested more in parental care.
Sequence-Structure Comparative and Network-Based Prediction of Drought Gene Candidate Regulator in Elaeis guineensis Permatasari, Galuh Wening; Putranto, Riza Arief; Mardhika, Larasati Dena; Aksa, Annisa Aulia; Setiawati, Yuli; Minarsih, Hayati; Riyadi, Imron; Ernayunita, Ernayunita
Journal of Tropical Biodiversity and Biotechnology Vol 9, No 3 (2024): September
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jtbb.90808

Abstract

Drought poses a significant threat to global food security, particularly impacting crops like oil palm. Selecting genes for genome editing to enhance drought tolerance presents formidable challenges. To ensure that the target gene is chosen correctly and results in the desired character, a pilot study is necessary to determine the target gene for knockout. Two genes drought-related, AtBRL3 and AtOST2, were scrutinized in this context. Aligned with the Elaeis guineensis genome, their neighbouring proteins and gene ontology were analysed to identify potential targets for genome editing. AtBRL3, identified as BRL1 (XP_010913986.1) in E. guineensis, exhibited 58.48% identity and 100% coverage. It interacts with 12 nodes, including BIR1, BRI1, and AT2G20050, crucial for signalling pathways and cellular responses. Molecular function analysis revealed kinase activity. AtOST2 showed high similarity to plasma membrane ATPase/HA1 (XP_010913679.1) in E. guineensis, with 87.46% identity and 100% query cover. It correlated with 14 genes associated with ABA stimulus, stomatal movement, and hormone response. EgBRL1 and EgHA1, resembling AtBRL3 and AtOST2, respectively, emerge as promising targets for developing drought-tolerant oil palm cultivars through gene editing. Nonetheless, further validation through in vitro gRNA target selection and in vivo conversion of OST2/BRL3-containing plasmids in oil palm calluses is indispensable to demonstrate their efficacy in conferring novel drought resistance traits. 
Phytochemical Properties, Antioxidant, and Cytotoxicity Activity of Knobweed (Hyptis capitata) from South Sulawesi, Indonesia To'bungan, Nelsiani; Widhiastuti, Stefani Santi; Hida, Fitriana Nur Laissya; Mahardhika, I Wayan Swarautama
Journal of Tropical Biodiversity and Biotechnology Vol 9, No 3 (2024): September
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jtbb.90976

Abstract

Hyptis capitata Jacq. known as Sumambu plants in Sulawesi, has phytopharmaceutical importance. H. capitata extracts were evaluated for their phytochemical properties, antioxidant activity, and cytotoxicity. Using the maceration yielded five types of extracts: root chloroform (RC), root methanol (RM), leaf chloroform (LC), leaf methanol (LM), and leaf ethanol (LE). Phytochemical properties were identified by qualifying procedure and digital image analysis for quantifying Red-Green-Blue (RGB) percentage and hex colour code. 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging assay was used to determine the half-maximal inhibitory concentration (IC50). Cytotoxicity screening of each extract was performed by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay against HeLa and 4T1 cells. Gas Chromatography-Mass Spectrometry (GC-MS) assay was used to identify the phytochemical compounds of the extracts with the most promising potential. Alkaloids were the major constituents of the phytochemicals of RC, RM, LE, LC, and LM. RM and LM have potency and weak free radical scavenging activities, with IC50 value 31.08 and 58.03 µg/mL, respectively. The IC50 of RC and RM against HeLa cells were 84.21 ± 0.63 and 172.10 ± 02.90 µg/mL, respectively. Meanwhile, the cytotoxicity of RC and RM against 4T1 cells were 86.42 ± 0.80 and 182.82 ± 7.00 µg/mL, respectively. It means RC and RM exhibit a moderate level of cytotoxicity in both HeLa and 4T1 cells. LM shows moderate cytotoxicity, but it is limited to 4T1 cells with an IC50 value of 181.86 ± 12.68 µg/mL. The cytotoxicity level of extracts was lower than doxorubicin. Campesterol, ferruginol, stigmasterol, cis-13-octadecenoic acid methyl esters, and methyl palmitate were predicted to play a role in the antioxidant activity and cytotoxicity of RC, RM, and LM. RC, RM, and LM possess the potential for development as anticancer agents. Moreover, RM shows promise as an antioxidant due to its notable radical scavenging activity. Further research is required to explore the cytotoxic effects of RC, RM, and LM on normal cells and to assess their toxicity in experimental animals. 
Characterization of Flower’s Color based on CHS Gene Structure in Phalaenopsis ‘OX Queen’ and Dendrobium ‘Cheddi Jagan’ Orchids Hanifa, Yumna Rahmadias; Gildantia, Elke; Kasi, Pauline Destinugrainy; Purwantoro, Aziz; Semiarti, Endang
Journal of Tropical Biodiversity and Biotechnology Vol 9, No 3 (2024): September
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jtbb.91511

Abstract

Orchids (Orchidaceae) are ornamental plants known for their high aesthetic value attributed to the shapes, colours, and fragrances of their flowers. Two types of hybrid orchids with attractive flowers, namely the Phalaenopsis 'OX Queen' orchid and the Dendrobium 'Cheddi Jagan' boast attractive flowers were used in this research, because of the beauty of its flower colour. The objective of this research is to characterise the morphology of flower colour and CHS (Chalcone Synthase) gene content that induces flower colour. The method used in this research analyzing the flower’s colour by using the RHS (Royal Horticultural Society) colour chart and molecular analysis by DNA genomic isolation and PCR amplification of gDNA for CHS gene specific primers. The results showed that purple colour is observed through the RHS, with P. 'OX Queen' coded as Deep Purple Pink (N73A) and D. 'Cheddi Jagan' coded as Strong Reddish Purple (N72C). The CHS gene can be amplified in P. ’OX Queen’ 1,287 bp and D. ’Cheddi jagan’ 3,731 bp. In both orchids, the results of amplification showed CHS motifs with conserved domains PLN03172 and PLN03170. The research results show that there is a significant difference in the morphology of the flowers of orchids. Purple colour is observed through the RHS, with P. 'OX Queen' coded as N73A and D. 'Cheddi Jagan' coded as N73C. The results showed that gDNA can be isolated by using CTAB method according to Murray and Thomson, and the CHS gene can be amplified by using CHS primers, resulting 1200 bp of P. 'OX Queen' and 2500 bp for D. 'Cheddi Jagan'. Through this study, preliminary data is expected to be obtained for future research, which is the formation of variegated flowers through editing the CRISPR/Cas9 genome in the CHS gene. This research is intended to support further studies on the formation of variegated flower patterns in P. 'OX Queen' and D. 'Cheddi Jagan’, focusing on the CHS gene using CRISPR/Cas9 technique. 

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