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SIMBIOSIS
Published by Universitas Udayana
ISSN : -     EISSN : 26567784     DOI : -
Core Subject : Science,
Biochemistry, Genetics & Molecular Biology
Simbiosis (e ISSN: 2337-7224))is an electronic scientific journal published periodically by the Biology Under Graduade Program, Faculty of basic and Natural Sciences, Udayana University , containing scientific works biology that include botany, zoology, microbiology, and molecular genetics and the environment. The Journal is published twice a year, in March and September.
Arjuna Subject : Biokimia, Genetika dan Biologi Molekuler - Biokimia, Genetika dan Biologi Molekuler (Lain-Lain)
Articles 9 Documents
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Search results for , issue "Simbiosis Volume 13 No. 2 2025" : 9 Documents clear
ISOLASI DAN UJI PATOGENITAS JAMUR Colletotrichum spp. PENYEBAB PENYAKIT ANTRAKNOSA PADA BUAH TOMAT (Solanum lycopersicum L.) : ISOLATION AND PATHOGENITY TESTING OF FUNGI Colletotrichum spp. CAUSES OF ANTHRACNOSE DISEASE ON TOMATOES (Solanum lycopersicum L.) Laila Maghfirotun Ni’mah; Sudirga, Sang Ketut; Darmadi, Anak Agung Ketut
SIMBIOSIS Simbiosis Volume 13 No. 2 2025
Publisher : Program Studi Biologi Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JSIMBIOSIS.2025.v13.i02.p02

Abstract

Tomatoes (Solanum lycopersicum L.) is a fruit with important economic value and is a leading horticultural commodity in Indonesia. Anthracnose is a disease that can infect tomato plants. From previous research, several types of isolates of Colletotrichum spp. Infecting different hosts can cause different disease severity. The aim of this research was to identify the Colletotrichum fungus that causes anthracnose on tomatoes from several gardens in Bali to test its level of pathogenicity. Isolation of the fungus Colletotrichum spp. using the direct planting method. The pathogenicity test uses the disease severity (KP) scoring method using the formula. Identification and morphological characterization of isolates of Colletotrichum spp. using the identification book "Illustrated Genera of Imperfect Fungi". The parameters observed were colony shape, hyphae and conidia characters and disease severity percentage (KP) on tomatoes. This research used a completely randomized design (CRD) and the data were analyzed statistically using the ANOVA (Analysis of Variance) test with SPSS version 26 software. The results of the identification of macroscopic and microscopic characters from PS, BS and SW isolates showed differences in colony, hyphae and conidia characters. The pathogenicity test results of the PS, BS, and SW isolates showed that the SW isolate was the most adaptive and pathogenic isolate. Keywords: Identification, isolate, hyphae, spores, disease severity
HUBUNGAN ANTARA RIWAYAT KETURUNAN DAN FAKTOR RISIKO TERHADAP KEJADIAN ASMA: THE RELATIONSHIP BETWEEN HEREDITARY HISTORY AND RISK FACTORS FOR ASTHMA Prita Jaya, Made Ayu Mutiara; Junitha, I Ketut; Wirasiti, Ni Nyoman
SIMBIOSIS Simbiosis Volume 13 No. 2 2025
Publisher : Program Studi Biologi Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JSIMBIOSIS.2025.v13.i02.p03

Abstract

ABSTRACT Asthma is a disease caused by chronic inflammation of the respiratory tract, which causes shortness of breath and difficulty breathing. This disease arises due to genetic factors or heredity. Genetic diseases may not be inherited again in the next generation, but can recur due to several risk factors that trigger asthma. This study aims to analyze the relationship between hereditary history and risk factors on the incidence of asthma. Sampling was carried out using a purposive sampling technique, data collection was carried out by measuring the variables studied using questionnaires and interviews, and data analysis was carried out using correspondence analysis. The results of the study show that not all asthma patients have a family history of asthma, and non-genetic risk factors that cause asthma recurrence consist of age, gender, body mass index (BMI), home location, smoking habits, and environmental factors consisting of fatigue, cold weather, dust allergies, mental influences, air pollution, animal dander allergies, and food allergies. Keywords: Allergies, asthma, genetics, gender, shortness of breath, age
UJI DAYA HAMBAT JAMUR Fusarium spp. MENGGUNAKAN EKSTRAK DAUN TREMBESI : JUDUL INGGRIS FUNGI INHIBITORY Test Fusarium spp. USING LEAF EXTRACT OF TTREMBESI Purnamaningsih, Ni Putu; Sudirga, Sang Ketut; Parwanayomi, Ni Made Susun
SIMBIOSIS Simbiosis Volume 13 No. 2 2025
Publisher : Program Studi Biologi Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JSIMBIOSIS.2025.v13.i02.p09

Abstract

ABSTRACT Production of large red chilies has decreased due to wilt disease. Continuous use of synthetic fungicides will have a negative impact on the ecosystem and health. Vegetable pesticides are one of the environmentally friendly pesticides, because they are easily decomposed in nature. Trembesi (Samanea saman (Jacq.) Merr) is one of the plants that has the potential to be used as a botanical pesticide. This research aims to determine the ability of trembesi leaf extract to inhibit the growth of Fusarium spp. Diffusion well method to determine the inhibitory power of trembesi leaf extract with optimal concentration in vitro. One-way ANOVA test was used to analyze research data. If there is a significant difference (P <0.05), then proceed with the Duncan post-hoc test. The results showed that the control group and the extract treatment group had significant differences (P <0.05). The largest inhibitory zone is a concentration of 20% with an inhibitory zone diameter of 21.37 mm Kata kunci: Extract, inhibitory, antifungal, Fusarium
UJI EFEKTIVITAS FUNGISIDA DAN EKSTRAK KACANG HIJAU DALAM AKLIMATISASI ANGGREK Dendrobium Phalaenopsis Fitzg. YANG TERKONTAMINASI : TESTING THE EFFECTIVENESS OF FUNGICIDES AND MUNG BEAN EXTRACT IN THE ACCLIMATIZATION OF CONTAMINATED Dendrobium Phalaenopsis Fitgz. ORCHIDS Fitri, Silvia Mona; Arpiwi, Ni Luh; Joni, Martin
SIMBIOSIS Simbiosis Volume 13 No. 2 2025
Publisher : Program Studi Biologi Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JSIMBIOSIS.2025.v13.i02.p01

Abstract

Orchid plants are difficult to develop naturally and often require human assistance, one method being through tissue culture. Tissue culture has limiting factors, such as contamination by microbes. This study aims to determine the optimal soaking time in fungicide to eliminate fungal contamination and to find the best concentration of mung bean extract for the growth of Dendrobium larat orchids. This experimental research uses a completely randomized factorial design with 2 factors, comprising 12 treatment combinations and 3 repetitions.The first factor is the duration of fungicide soaking at 0 minutes, 30 minutes, and 60 minutes in an antracol fungicide solution at a dose of 1.50 g/L. The second factor is the addition of mung bean extract at 0 g/L, 50 g/L, 70 g/L, and 90 g/L. The best fungicide soaking duration was found to be 60 minutes. The measurable parameters showed that the highest plant growth and the longest root length occurred with fungicide soaking for 60 minutes and the addition of mung bean extract at a concentration of 70 g/mL. The highest number of leaves was observed with fungicide soaking for 60 minutes and the addition of mung bean extract at a concentration of 50 g/mL. Keywords: Dendrobium larat, antracol, decontamination
DETEKSI CEMARAN TOTAL BAKTERI DAN IDENTIFIKASI Salmonella sp. PADA TELUR GARAM YANG DIJUAL DI PASAR TRADISIONAL DI DENPASAR BALI : DETECTION OF TOTAL BACTERIAL CONTAMINATION AND IDENTIFICATION OF Salmonella sp. ON SALT EGGS SOLD AT THE TRADITIONAL MARKET IN DENPASAR BALI Dimung, Marieta Demarilac; Parwanayoni, Ni Made Susun; Yulihastuti, Dwi Ariani
SIMBIOSIS Simbiosis Volume 13 No. 2 2025
Publisher : Program Studi Biologi Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JSIMBIOSIS.2025.v13.i02.p07

Abstract

ABSTRACT Salt eggs are a type of egg that undergoes a five-hour boiling process and then coated with salt. Eggs are subject to damage, both from external sources and during microbial development. One of the microorganisms that contaminate eggs is Salmonella sp. This study aims to identify Salmonella sp. and examine the detection of total bacterial contamination in salted eggs sold in traditional markets in Denpasar Bali. Samples of this study were taken from 10 traditional markets located in Denpasar Bali randomly and three times repeated. The type of research conducted is descriptive research which describes the total bacteria in salt eggs and the presence or absence of Salmonella sp. The data collected is displayed using tables, figures, and in-depth explanations based on the findings of relevant literature reviews. Based on the results of the Alt test, it shows that at a dilution of 10-3 salt egg samples from Peguyangan and Kertha Boga Pemogan markets have more than 300 colonies (TBUD). This number still meets the SNI requirements, which is a maximum of 1 x 105 CFU. The results of the Salmonella sp. bacteria detection test are that all salt egg samples are free of Salmonella sp. bacteria.
KARAKTERISASI DAN ANALISIS POLA PERTUMBUHAN IKAN KEMBUNG (Rastrelliger sp.) YANG DIDARATKAN DI TEMPAT PELELANGAN IKAN KEDONGANAN, BALI: CHARACTERIZATION AND GROWTH PATTERN ANALYSIS OF IKAN KEMBUNG (Rastrelliger sp.) LANDED AT KEDONGANAN FISH AUCTION SITE, BALI Revael Sihombing; Ni Made Suartini; Ngurah Intan Wiratmini
SIMBIOSIS Simbiosis Volume 13 No. 2 2025
Publisher : Program Studi Biologi Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JSIMBIOSIS.2025.v13.i02.p04

Abstract

ABSTRACT One of Bali's largest fish potential areas is Kedonganan, a coastal region where the majority of residents are fishermen. Kedonganan waters represent a highly promising fish landing site due to its direct proximity to the Indian Ocean. Based on preliminary surveys and interviews with local fishermen, the dominant small pelagic fish species frequently landed in large quantities at the Kedonganan Fish Auction (TPI) are mackerel fish (Rastrelliger sp.). This study aims to investigate the morphology, morphometrics, and growth patterns of these species landed at TPI Kedonganan. This research employed survey and interview methods. The variables examined include fish morphology, fish morphometrics consisting of 15 characters, and the growth patterns of mackerel fish (Rastrelliger sp.). The findings reveal that mackerel fish (Rastrelliger sp.) exhibit a fusiform body shape, terminal mouth, forked caudal fin, and cycloid scales. Morphometric measurements showed an average total length of 217.8 cm. The growth pattern of mackerel fish includes negative allometric (b<3).
KARAKTERISTIK ANATOMI SEL EPIDERMIS DAUN DAN STOMATA TANAMAN KAMBOJA (Plumeria spp.) DI DESA PEMOGAN, KECAMATAN DENPASAR SELATAN, KOTA DENPASAR, BALI: ANATOMICAL CHARACTERISTICS OF LEAF EPIDERMAL CELLS AND STOMATA IN FRANGIPANI PLANTS (Plumeria spp.) IN PEMOGAN VILLAGE, SOUTH DENPASAR DISTRICT, DENPASAR CITY, BALI Faukha Aisyatur Rahma; Gari, Ni Made; Pharmawati , Made
SIMBIOSIS Simbiosis Volume 13 No. 2 2025
Publisher : Program Studi Biologi Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JSIMBIOSIS.2025.v13.i02.p08

Abstract

Frangipani plants (Plumeria spp.) is a member of the Apocynaceae family that can live in various soil conditions. The anatomical structure of frangipani leaves generally consists of epidermis, stomata, trichomes, mesophyll, and vascular bundles. Anatomical characteristics can be used as complementary data in addition to morphological characteristic data in grouping a species. This study aims to determine the anatomical characteristics of leaves from epidermal cells and stomata in seven taxa of frangipani plants located in Pemogan Village, South Denpasar District, Denpasar City, Bali. The study was conducted by observing epidermal cells and stomata in leaf samples taken from the fifth to sixth leaves from the shoot with three leaves each per plant. Observation of epidermal cells and stomata was carried out by the boiling method with 60% nitric acid (HNO3) solution. The results showed that the characteristics of epidermal cells and stomata varied in epidermal cell size, stomata size, and stomatal index. Plumeria spp. has a polygonal epidermis (quadrilateral - octagonal) with irregular edges. The stomata are of the parasitic type, characterized by two neighboring cells located parallel to the guard cells, and are found in abundance on the adaxial and abaxial parts of the leaves in the six cultivars observed, except in P. obtusa L Singapore, where stomata were only found on the abaxial part of the leaves. Key word: Frangipani, anatomy, epidermal cells, stomata
VARIASI POLA SIDIK JARI PETANI DI KAWASAN BEDUGUL, DAN NELAYAN DI KAWASAN PERANCAK PROVINSI BALI: VARIATIONS IN FINGERPRINT PATTERNS OF FARMERS IN THE BEDUGUL AREA, AND FISHERMEN IN THE PERANCAK AREA, BALI PROVINCE Vandi Dama Setiawan; Pharmawati, Made; Suaskara, Ida Bagus Made
SIMBIOSIS Simbiosis Volume 13 No. 2 2025
Publisher : Program Studi Biologi Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JSIMBIOSIS.2025.v13.i02.p06

Abstract

ABSTRACT Fingerprints are one of the biometric systems currently available besides retina, eye, face and other biometric systems. Fingerprints can be divided into several patterns, namely loop, whorl and arch patterns. The aim of this research is to determine variations in fingerprint patterns in the Bedugul area and fishermen in the Perancak area, Bali Province. The sampling method used was the Purposive Sampling method by taking fingerprint samples from farmers in the Bedugul area and fishermen in the Perancak area. The variables observed were the fingerprint pattern and the number of finger tendrils on the proband's hand. The data obtained will be analyzed by calculating the Furuhata Index, Dankmeijer Index and Total Ridge Count. The results showed that fingerprint patterns, the Furuhata Index and the Dankmeijer Index were not different between male fishermen and female fishermen in Jembrana. Likewise, women farmers in Bedugul have fingerprint types that are no different from men. There are differences in the fingerprint patterns of the fishermen population in Jembrana and farmer in Bedugul. There is no difference in total ridge between fishermen in Jembrana and farmers in Bedugul.
INTERPRETASI EKOWISATA OLEH PEMANDU WISATA PADA DAYA TARIK WISATA LUMBA-LUMBA DI BALI: INTERPRETATION OF ECOTOURISM BY TOUR GUIDES AT THE DOLPHIN TOURIST ATTRACTION IN BALI Nathalia Sihombing; Dalem, A.A. Gde Raka; Astarini, Ida Ayu
SIMBIOSIS Simbiosis Volume 13 No. 2 2025
Publisher : Program Studi Biologi Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JSIMBIOSIS.2025.v13.i02.p05

Abstract

Dolphin ecotourism is a tourism activity that is educational and related to tour guides who provide interpretation, so this research is important for the sustainability of better dolphin ecotourism. This research was conducted from November to December 2025 which aims to determine the type of interpretation, means of interpretation and the quality of interpretation provided to tourists. The data collection method is accidental sampling by conducting interviews, direct observation, distributing questionnaires and examining related documents. The guides interviewed were 15 people and 25 tourists. The results obtained in this study indicate that the type of interpretation used by dolphin tour guides in Bali amounted to seven types of interpretation types, namely, guided tour, point duty, roving interpretation, lecture or talk, demonstration, translator and living history. The means of interpretation used amounted to four types of facilities, namely print (100%), self-guiding signs (100%), cell phones or social media (100%) and interpretation boards (100%). The overall quality of tour guide interpretation is assessed based on aspects of knowledge, skills and attitude. The quality of the guide's interpretation received an average score that was classified in the good category with a presentation of 76.6%, from the knowledge of 81.2%, the skill of 99.5% and the attitude of 75%. The superior aspect is in the skill aspect of 99.5%. This value indicates that the quality of interpretation of dolphin tour guides in Bali is said to be good.

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