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INDONESIA
BIOVALENTIA: Biological Research Journal
Published by Universitas Sriwijaya
ISSN : -     EISSN : 24771392     DOI : https://doi.org/10.24233/biov
Core Subject : Health, Science, Agriculture, Social,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Environmental Science Immunology & microbiology Medicine & Pharmacology
BIOVALENTIA: Biological Research Journal aims to review and publish the Biological research results from researchers. The range of articles which BIOVALENTIA: Biological Research Journal publishing is the research results in Biology science and applied Biology. Biology science is included Ecology, Biosystematics, Physiology, Developmental Biology, Microbiology, Genetics. Applied Biology is included Biotechnology, and the sciences derived from Biology science.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Pertanian dan Biologi (Lain-Lain)
Articles 178 Documents
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A Physiological Status Affect Reptiles Thermoregulation’s Strategy: A Review Oktariansyah, Yadi
BIOVALENTIA: Biological Research Journal Vol. 11 No. 1 (2025)
Publisher : Biology Department, Faculty of Mathematics and Natural Sciences, Sriwijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24233/biov.11.1.2025.459

Abstract

As an ectotherm class, reptiles' thermoregulation has unique mechanisms through the combination of physiological traits, behavioral adjustments, and environmental aspects. Reptiles need to do thermoregulation since their body temperature is affected by environmental aspects. Reptiles experience physiological status, which plays an important role in thermoregulatory behavior. This study explores the response of reptiles' thermoregulation strategy under various physiological states, representing facts about the complex thermoregulation mechanism. Specific physiological statuses such as life stage, reproduction status, immune and health system, dehydration, and digestive have been deeply explored by researchers to identify the effects of these traits on reptiles' thermoregulation strategies. These traits significantly affect reptiles' body temperature, such as having low Tb under the dehydration state and choosing higher Tb to promote food digestion under the digestive state. However, the consistency of these results may vary among reptile species that refer more to behavioral adjustment and mating process rather than physiological status. Different life stages and reproduction statuses also influence reptiles' thermoregulation strategy and implicate the evolutionary mechanism for gravid females to obtain a thermally suitable environment, especially for their embryos. Under behavioral adjustments, reptiles alter microhabitat selection to encounter low thermal environments such as water desiccation or climate change threats. Further research that combines physiological traits, behavioral adjustment, and environmental aspects through a biophysical model can contribute to demonstrating how thermoregulation strategies may compromise different physiological statuses. For reptiles, climate change is strongly associated with population loss. Therefore, this study with relevant topics may stand as a proxy for conservation regulation and policymakers to reduce unfavorable thermal environment aspects through habitat degradation.
The Morphological, Anatomical and Physiological Responses of Kemiri Sunan (Reutealis trisperma) Under Drought Stress Nisa, Amanatun; Devita , Harijayanti; Riki , Kurniawan
BIOVALENTIA: Biological Research Journal Vol. 11 No. 1 (2025)
Publisher : Biology Department, Faculty of Mathematics and Natural Sciences, Sriwijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24233/biov.11.1.2025.466

Abstract

Reutealis trisperma is a promising bioenergy crop, exhibits notable drought stress responses that influence its morphology, physiology, and anatomy. However, the information about Reutealis trisperma under drought stress was still limited. Therefore, we conducted this study to evaluates the plant's adaptive mechanisms under controlled greenhouse conditions with varying levels of drought stress of Reutealis trisperma. We used a completely randomized design (CRD) with drought stress as the treatment and 10 repetitions. Drought stress was applied by withholding water, with treatments divided into mild stress (2 weeks) and suffer stress (7 weeks). Control plants were watered regularly. We measured some morphological parameters (plant height, number of leaves, dry weight), physiological parameters (RWC, MDA, proline, chlorophyll content), and anatomical parameters (stomatal density and structure). Data were analysed using ANOVA with a 0.05 significance level. Results revealed a decline in plant height, chlorophyll content, and relative water content (RWC), alongside an increase in malondialdehyde (MDA) levels, indicating oxidative stress. Morphological changes included reduced leaf and root biomass, while anatomical adaptations featured reduced stomatal density to conserve water. Reutealis trisperma exhibits significant morphological, physiological, and anatomical adaptations under drought stress. Drought reduced plant height, chlorophyll content, and relative water content while increasing root-to-leaf dry weight ratios and malondialdehyde levels, indicating oxidative stress. Anatomical changes, such as reduced stomatal density, enhance water conservation. These adaptations underscore the plant's resilience, supporting its potential for bioenergy production on marginal, water-deficient lands.
The Effects Of Mahogany Leaf Extract (Swietenia mahagoni (L.) Jacq) On Effects The Histological Structure Of The Gastric Mucosa In Mice (Mus musculus L.) Tegar Adi, Wibowo; Arum, Setiawan; Sarno, S
BIOVALENTIA: Biological Research Journal Vol. 11 No. 1 (2025)
Publisher : Biology Department, Faculty of Mathematics and Natural Sciences, Sriwijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24233/biov.11.1.2025.472

Abstract

Each part of the mahogany plant (Swietenia mahagoni (L.) Jacq) has many benefits that can help cure diseases traditionally. Phytochemical screening of mahogany plants has isolated more than 45 limonoids, and it is known that they contain fatty acids and terpenoids.This experiment was performed to examine the effect of mahogany leaf extract (S.mahagoni (L.) Jacq.) on the histological structure of the gastric mucosa in mice (Mus musculus L.) and prove the effect of giving leaf extract in reducing peptic ulcer scrores ini mice. Twenty mice were divided into 5 treatment groups. Before giving mahogany leaf extract, the mice underwent acclimatization and fasted for 2 x 48 hours. The administration of mahogany leaf extraxt is carried ot orally using a probe with repetitions 3 times every 8 hours. The doses of mahogany eaf extract given are 500mg/kgBB, 1.000 mg/kgBB, and 2.000 mg/kgBB. The other groups were negative control dan positive control. After the treatmen of the mice was somplete, the mice were dissected to remove their stomachs and carried out observations. The gastric mukosa was observed by scoring based on the severity of the ulcer and the hematoxylin eosin staining showed that mahogany leaf methanol extract had a better effect on the histologica structure of the mucosa in mice by reducing inflammatory cells ini the mucosal layer. Administration of mahogany leaf methanol extract had an effect in reducing peptic ulcer scores in the stomachs of mice. The higher the dose of mahogany leaf extract, the lower the degree of damage to the microscopic appearance of the mice’s gastric mucosa.
Identification of Castor Genotypes Resistant to Graymold in Peatland Area based on Resistance Gene Analogs: A Preliminary Study Wahibah, Ninik Nihayatul; Atria , Martina; Arini, Arini; Yasir, Sidik
BIOVALENTIA: Biological Research Journal Vol. 10 No. 2 (2024)
Publisher : Biology Department, Faculty of Mathematics and Natural Sciences, Sriwijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24233/biov.10.2.2024.236

Abstract

Graymold is one of devastating fungal disease of castor plants (Ricinus communis L.) caused by Botryotinia ricini. Resistant germplasm is the basic and essential sources to support castor breeding obtaining disease resistant varieties. Objective of this study was to identify castor genotypes resistant to gray mold in peatland agroforestry area in Kepulauan Meranti that naturally infected by graymold fungal pathogen.  This is the first report about castor plants cultivated under peat soil. Infected and uninfected castor plants were sampled and analyzed their Resistance Gene Analog (RGA).  Results showed that resistant plants expressed diverse phenotype and amplified DNA fragment using RGA primers. The fragments were similar to ABC transporter gene which is one of RGA classes. Additionally, the fragments revealed P-loop NTPase conserved domain. In contrast, all infected plants failed to produced PCR product.  The results indicated that uninfected castor plants can be used as source of resistant trait. Their RGA sequences can be analyzed to develop molecular marker for supporting gray mold resistant breeding program.
Porang (Amorphophallus muelleri B.) Indirect Organogenesis Nur Khozin, Mohammad; Ahmad Iqbal Rananda; Didik , Pudji Restanto
BIOVALENTIA: Biological Research Journal Vol. 10 No. 2 (2024)
Publisher : Biology Department, Faculty of Mathematics and Natural Sciences, Sriwijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24233/biov.10.2.2024.334

Abstract

Organogenesis is regeneration mechanism on the process of organ formation derived from somatic or non-meristematic tissue on in vitro technique. Organogenesis can occur directly or indirectly. This research used porang leaves as explant, and medium MS Basal with addition such as sucrose, agar, combination of PGR’s 2,4 D and NAA, and aquadest. This research method used the Completely Randomize Design (CRD) with 9 different level combination of 2,4 D and NAA such as 2,0 ppm 2,4 D + 1,5 ppm NAA (A1), 2,0 ppm 2,4 D + 2,0 ppm NAA (A2), 2,0 ppm 2,4 D + 2,5 ppm NAA (A3), 2,5 ppm 2,4 D + 1,5 ppm NAA (A4), 2,5 ppm 2,4 D + 2,0 ppm NAA (A5), 2,5 ppm 2,4 D + 2,5 ppm NAA (A6), 3,0 ppm 2,4 D + 1,5 ppm NAA (A7), 3,0 ppm + 2,0 ppm NAA (A8), 3,0 ppm 2,4 D + 2,5 ppm NAA (A9) with 3 repetitions for each combination. Quantitative data such as the percentage of explants that appeared callus and roots were tested statistically by using ANOVA to determine the significance of the effect of the treatment. Treatments that had significant results were then tested using the DMRT test with a level of α=5%. Qualitative data were observed visually and analyzed descriptively. Combination concentration treatment of 2,4 D and NAA have the significant effect on callus and root formation. The level of 2 ppm 2,4 D and 2 ppm NAA is the best treatment on callus formation process in terms of 100% callus emerge and the early day appears at 24 days after planting and the best treatment on the process of root formation in terms of percentage roots emerge 100% and the early day roots appears at 46 days after planting. Indirect organogenesis is type of of root regeneration.
Potential of Averrhoa bilimbi Leaf in Incision Wound Healing in Diabetic Rat Model tahara; Aditya, Candra; Zurriyani, Zurriyani; Andri, Andri; Ika , Waraztuty; Said , Aandy Saida; Muhammad , Yani
BIOVALENTIA: Biological Research Journal Vol. 10 No. 2 (2024)
Publisher : Biology Department, Faculty of Mathematics and Natural Sciences, Sriwijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24233/biov.10.2.2024.397

Abstract

Diabetic wounds are a serious problem and need to be treated appropriately. One of the wound healing efforts is using the leaves of the Averrhoa billimbi (Abl). This study aims to examine the reduction in wound healing and histopathological images of wound-healing rats with Abl extract. The rat in the study were 2-3 months old, weighed 200-250 grams and were 12 male. The rat were divided into 3 groups: the control group (G1) received only distilled water, the group 10 µl extract (G2) and the group of diabetic mice received 10 l extract (G3). The treatment and skin tissue samples were obtained on day 8. The rats were digested with ether solution and skin incisions were made, followed by povidine idone administration. The study data were analyzed by analysis of variance (ANOVA). Statistical test results showed that the incision reduction was highest in G2, followed by G3 and G1 at 1.120 ± 0.156, 1.405 ± 0.007, 1.510 ± 0.028, respectively. Histopathological images of proliferative fibroblast cell counts and collagen density were higher in K3 than in K1. Based on the study results, it can be concluded that using 10 µl extract can heal cuts in diabetic rats.
Variety of Bryophytes in Sultan Adam Mandiangin Grand Forest Park Area Khairun Amalia; Aulia , Ajizah; Nurul Hidayati, Utami
BIOVALENTIA: Biological Research Journal Vol. 10 No. 2 (2024)
Publisher : Biology Department, Faculty of Mathematics and Natural Sciences, Sriwijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24233/biov.10.2.2024.409

Abstract

Moss plants can live well in areas that have high humidity. The Dutch Guesthouse which is located in the Sultan Adam Mandiangin Forest Park area has high humidity because the area has lots of dense plants, so it is a suitable habitat for the living nature of moss plants. This study aims to describe and identify the various species of moss found in the area of study. Data collection was carried out using the exploring method, followed by determining and identifying each sample of the moss plants found in the laboratory. Data analysis was carried out descriptively and identifying species with reference to the relevant literatures. The results found 10 species of mosses belonging to 7 different families, both found in tree, rock and soil habitats. The species found were: Calymperes tenerum, Calymperes afzelii, Hyophila apiculata, Hyophila involuta, Ectropothecium falciforme, Octoblepharum albidum, Philonotis hastata, Acroporium secundum, Lejeunea lamacerina, and Thysananthus sp. The results of this study are expected to provide information about the variety and biodiversity of mosses in South Kalimantan.
Detection of Antibody Titers Against New-Castle Disease Virus (ND) and Monocyte Profile in Free-Range Chickens (Gallus domesticus) at a Farm in Permata Village, Tilongkabila Sub-district, Bone Bolango District Suaiba, Zachrianty; Djuna, Lamondo; Wirnangsi Din, Uno; Yuliana , Retnowati; Margaretha , Solang; Kristina Dwi , Wulandari
BIOVALENTIA: Biological Research Journal Vol. 10 No. 2 (2024)
Publisher : Biology Department, Faculty of Mathematics and Natural Sciences, Sriwijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24233/biov.10.2.2024.423

Abstract

Abstract: This study aims to determine the presence of Newcastle Disease (ND) virus antibody titers and the percentage of monocyte cells in native chickens (Gallus domesticus) at a farm in Permata Village, Tilongkabila Subdistrict, Bone Bolango Regency. The method used in this research is qualitative descriptive. Antibody titer data were obtained from the results of the HI (Haemagglutination Inhibition) test, while the percentage of monocyte cells was determined using 10% Giemsa staining with parallel track counting.The results showed that out of 50 samples, 10 samples tested positive for antibody titers (20%), while 40 samples tested negative (80%). For positive antibody titer samples, leukocyte count totaled 3,310, with 250 monocytes, yielding a percentage of 7.55%. For negative samples, leukocyte count totaled 10,560, with 360 monocytes, resulting in a percentage of 3.20%, which falls within the normal range of monocyte cell values.
Weed Community Changes Due To Herbicide Treatment In Mature Oil Palm Plantations Apriansa, Azharudin; Yakup, Yakup; Susilawati, Susilawati; Asmono, Dwi; Wandri, Ruli
BIOVALENTIA: Biological Research Journal Vol. 10 No. 2 (2024)
Publisher : Biology Department, Faculty of Mathematics and Natural Sciences, Sriwijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24233/biov.10.2.2024.441

Abstract

Stenochlaena palustris, commonly known as pakisan weed, poses significant challenges in oil palm plantations due to its highly invasive nature, which can lead to reduced agricultural productivity. Management of this weed is critical, as effective control measures can inhibit its dominance and promote the proliferation of alternative weed species, thereby enhancing biodiversity within the ecosystem. This study aimed to 1) assess the effectiveness of the herbicide ammonium glufosinate, in combination with an adjuvant, for controlling S. palustris in oil palm plantations, and 2) investigate the subsequent alterations in the weed community structure following herbicide application. We employed a randomised group design (RAK), incorporating the herbicide with added adjuvants. Results showed a clear change from S. palustris to Asystasia sp. as the dominant species. Treatments K and H had the most Asystasia sp., while treatment L had the least. Furthermore, we clearly compared treatments L, K, and S to the control treatment, emphasizing the emergence of diverse species within the treatment plots. However, low levels of diversity and evenness suggest a stressed weed community, indicating that the herbicide application can disrupt existing ecological balances. This study emphasizes the importance of assessing herbicide impacts not only on targeted weed species but also on broader community dynamics, revealing a significant research gap in understanding the long-term ecological consequences of herbicide use in oil palm plantations.
Relationship between the Farmers' Level of Compliance in Using Pesticides and Pests, Diseases, Natural Enemies and Product Safety of Rice Amalia Rahmadani, Shinta; SHK, Suparman; Irsan, Chandra
BIOVALENTIA: Biological Research Journal Vol. 10 No. 2 (2024)
Publisher : Biology Department, Faculty of Mathematics and Natural Sciences, Sriwijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24233/biov.10.2.2024.442

Abstract

The use of pesticides is one of the control alternatives that is widely used by farmers. However, continuous and inappropriate use of pesticides can have negative impacts on humans and the environment. This research aims to determine the relationship between the level of farmer compliance in using pesticides and pest attacks, disease, natural enemy populations and product safety. The research was conducted in two areas, namely Tanjung Lago and Pemulutan by interviewing farmers and direct observation of rice fields. The variables observed were the percentage and intensity of pest attacks, plant disease. and natural enemy populations. The level of farmer compliance is connected to field data and the correlation efficiency is calculated. The relationship between farmer compliance in the use of pesticides against pests and disease is negatively correlated, and positively correlated with the population of natural enemies.  Using herbal pesticides according to the dosage can reduce the negative impact of pesticides on the environment.

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