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<![CDATA[Metabolite Activity of Endophy Fungi Isolated from Betle Leaf (Piper betle) Against Candida Albicans ]]>
<![CDATA[Aini Aini]]>;
<![CDATA[Edi Kurniawan]]>;
<![CDATA[Sumiatun Sumiatun]]>
<![CDATA[ Jurnal Biologi Tropis Vol. 22 No. 1 (2022): January - March ]]>
Publisher : <![CDATA[Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia ]]>
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DOI: 10.29303/jbt.v22i1.3246
<![CDATA[Betle (Piper betle) is a type of plant producing antimicrobial substances and secondary metabolites that are potentially used for the production of new drugs. Candidiasis is a disease caused by Candida albicans and causes diseases of the mucosa of the mouth, digestive tract, and vagina. The study aimed to isolate the betle leaf endophyte fungus (Piper betle L.) and find out the activity of its metabolites against Candida albicans. The research was conducted at the Laboratory of Plant Physiology and Biotechnology, Faculty of Agriculture, University of Mataram. The research method used was descriptive observation. The purpose of this study was to isolate endophytic fungi and their activity against Candida albicans from beetle leaves. The yield of endophytic fungal secondary metabolites was obtained by fermentation method, and the activity of Candida albicans was detected by diffusion method. Isolation test obtained from R&D hospital NTB Province. The research results obtained the endophytic fungi isolated from beetle leaves (Piper betle L.) and obtained the identification results of the fungus Cephalosporium.]]>
<![CDATA[Effect of Organic Fertilizer on Growth and Productivity of Ipomoea reptans Poir ]]>
<![CDATA[Klementinus Bhato]]>;
<![CDATA[Yohanes Bare]]>;
<![CDATA[Oktavius Yoseph Tuta Mago]]>
<![CDATA[ Jurnal Biologi Tropis Vol. 22 No. 1 (2022): January - March ]]>
Publisher : <![CDATA[Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia ]]>
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DOI: 10.29303/jbt.v22i1.3232
<![CDATA[Kangkung Darat (Ipomoea reptans Poir) is the vegetable that is popular and consumed by the community. Chemical fertilizers bring negative impacts on soil and consumer health, lead to change thewith liquid organic fertilizer from cattle dung and tofu industrial waste with floating raft hydroponic planting techniques. The purpose of this study was to analyze the effect of liquid organic fertilizer on the growth and productivity of Ipomoea reptans Poir. The research was conducted on the campus of the University of Nusa Nipa Indonesia. The research method, quantitative data collection using a Randomized Block Design (RAK) consisting of 5 treatments, namely P0 = 0% (control), P1 = 20%, P2 = 40%, P3 = 60%, P4 = 80%. Parameters observed were plant height, number of leaves and wet weight. The data obtained were analyzed using SPSS version 16.0 with an advanced test, namely the DMRT (Duncan's Mutiple Range Test) test. The results showed that the application of liquid organic fertilizer from cow dung and tofu industrial waste had a significant effect on the growth and productivity of Ipomoea reptans Poir. The effects include the growth of plant height and number of leaves as well as the yield of Ipomoea reptans Poir including wet weight (fresh) with the best concentration of P2 treatment with 40% POC concentration This research provides benefits for the community, especially the potential as farmers to further motivate the use of liquid organic fertilizer made from cow dung and tofu waste to increase crop income and soil fertility.]]>
<![CDATA[Preliminary Study: Habitat Characteristics of Amorphophallus spp. to Support Cultivation Development in East Lombok ]]>
<![CDATA[Janwar Wahyu]]>;
<![CDATA[Arben Virgota]]>;
<![CDATA[Sukiman Sukiman]]>;
<![CDATA[Baiq Farista]]>;
<![CDATA[Suripto Suripto]]>
<![CDATA[ Jurnal Biologi Tropis Vol. 22 No. 1 (2022): January - March ]]>
Publisher : <![CDATA[Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia ]]>
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DOI: 10.29303/jbt.v22i1.3102
<![CDATA[One type of the Amorphophallus genus that has high economic value is Amorphophallus Muelleri, which is known as the local name Porang. Porang tubers are used to obtain glucomannan which is widely used in the drug industry. Currently, many porang tubers come from the forest and have not been widely cultivated. In Lombok island of, several species of Amorphophallus spp are found. Therefore, a preliminary study of the habitat information of Amorphophallus spp. in East Lombok is urgently needed, especially in the Kokok Tojang sub-watershed. This study aims to determine the habitat of Amorphophallus spp based on actual and potential existence data. The method used in this study is a purposive sampling method, namely by looking for actual and potential locations where Amorphophallus spp.àIn this study, two types of Amorphophallus were found, namely A. paeoniifollius and A muelleri. Habitat characteristics of Amorphophallus spp described by soil and microclimate parameters. Soil parameters include soil moisture (15-70% and an average of 28.5%); Soil temperature (24-29 oC), soil fertility (ideal) soil texture (clay clay, sandy loam, and dusty clay), conductivity (0.07 ââ¬â 0.52 mS/cm). Microclimate parameters measured include temperature (19.4 ââ¬â 30.3oC), humidity (64.4% ââ¬â 81.4%), light intensity (60.3 ââ¬â 22526.8 lux).]]>
<![CDATA[Analysis of Cd and Cu Heavy Metal Content in Climbing perch (Anabas testudineus) Derived from Rawa Taliwang Lake, West Sumbawa Regency ]]>
<![CDATA[Khairuddin Khairuddin]]>;
<![CDATA[M. Yamin]]>;
<![CDATA[Kusmiyati Kusmiyati]]>
<![CDATA[ Jurnal Biologi Tropis Vol. 22 No. 1 (2022): January - March ]]>
Publisher : <![CDATA[Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia ]]>
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DOI: 10.29303/jbt.v22i1.3105
<![CDATA[Many species of fish in Rawa Taliwang Lake can be used as bioindicators. Climbing perch (Anabas testudineus) is a species of freshwater fish that is used as a bioindicator. The aims of this study were: Want to know the heavy metal content of Copper (Cu) and Cadmium (Cd) in Climbing perch from Rawa Taliwang Lake to enrich the Environmental Knowledge course material. A special benefit is to protect consumers who consume fish from heavy metal contaminants. The research was conducted in Rawa Taliwang Lake, which is an area that is submerged in water. Methods Data collection was carried out by determining 2 research stations, namely in the east and west of the lake. Next, fishing is done using gill nets. Fish samples were taken from 3 to 4 fish at each station. The fish species taken were Climbing perch (Anabas testudineus). Then each fish sample was put into a plastic bag and then stored in a sample box. The research sample was then analyzed in the West Nusa Tenggara Health, Testing and Calibration laboratory. The data analysis method was carried out by taking muscle tissue from Climbing perch and then analyzing the content of heavy metals in the form of Copper (Cu), and Cadmium (Cd) using an Atomic Absorption Spectrophotometer. Measurement of heavy metals in fish tissue was carried out by adding concentrated HNO3 and HClO4, heated at a temperature of 60-70úC for 2-3 hours until the solution was clear. Ready samples were measured by AAS using an air-acetylene flame. The measurement results show the presence of heavy metals Copper (Cu) and Cadmium (Cd) in the fish tissue studied. The conclusion of this study is that the heavy metal content in Climbing perch à(Anabas testudineus) originating from Rawa Taliwang Lake to enrich the Environmental knowledge course material is; Copper (Cu) ranged from 0.067 ppm to 0.126 ppm, and Cadmium (Cd) ranged from 0.011 ppm to 0.016 ppm.]]>
<![CDATA[Anti Fungi Potential of Psidium cattleianum afzel ex Sabin extraction as an inhibitor of fungi Fusarium solani ]]>
<![CDATA[Lina Febriantini]]>;
<![CDATA[Khotibul Umam]]>;
<![CDATA[Putu Agus Hendra Wibawa]]>;
<![CDATA[Wawan Sujarwo]]>
<![CDATA[ Jurnal Biologi Tropis Vol. 22 No. 1 (2022): January - March ]]>
Publisher : <![CDATA[Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia ]]>
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DOI: 10.29303/jbt.v22i1.3167
<![CDATA[The use of fungicides plays an important role in controlling plant diseases caused by Fusarium. However, the development of environment friendly fungicides is considered more effective, which used the plant secondary metabolites. This study aims to find the latest alternative fungicides using Psidium Cattleianum Afzel plant extract, ex Sabine from the collection of the "Eka Karya" LIPI-Bali Botanical Garden, which can inhibit the growth of F. solani and to find the minimum dose of the plant extract in inhibiting growth of F. solani. The method used was early screening of plant and fungi, medium preparation for fusarium and minimum dose analyze. This study found that based on 19 plants tested, Psidium cattleianum proved effective in inhibiting the F. solani. ÃÂ Further testing of psidium plants was carried out by looking at the minimum dose of inhibition against fusarium. The inhibition zone contained in the 1% treatment was greater than the concentrations of 0.75%, 0.50% and 0.25%. The research was continued at a concentration reduction of 0.20-0.005% with the results showing that a concentration of 0.20% to a concentration of 0.05% resulted in a moderate inhibition zone of 8 mm to 9.2 mm. Therefore, it can be concluded that the concentration of 1% is the concentration with the minimum dose of Psidium cattleianum in inhibiting the growth of the fungus Fusarium solani.]]>
<![CDATA[Utilization of Home Yard for Lettuce Cultivation with a Hydroponic ]]>
<![CDATA[Ungki Marnando]]>;
<![CDATA[Widayanti Widayanti]]>;
<![CDATA[Septilia Septilia]]>;
<![CDATA[Uswatun Hasanah]]>;
<![CDATA[Arini Rosa Sinensis]]>
<![CDATA[ Jurnal Biologi Tropis Vol. 22 No. 1 (2022): January - March ]]>
Publisher : <![CDATA[Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia ]]>
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DOI: 10.29303/jbt.v22i1.3196
<![CDATA[The development of technology is currently very rapid, especially technological developments in the agricultural sector. However, some farmers do not use the land as an agricultural business. The purpose of the study was to provide a strategy for using yard land as hydroponic lettuce cultivation. This research method is a survey. The research instrument used an open questionnaire, interviews and analyzed descriptively qualitatively. The results showed that vegetable cultivation can be done hydroponically. Vegetables grown hydroponically in this study were lettuce. Planting using a hydroponic system is an environmentally friendly plant process because its cultivation does not require excessive pesticides. In addition, it can take advantage of a narrow land as a planting medium. Further research needs to analyze the types of hydroponic plants that are suitable for each surrounding area]]>
<![CDATA[Spatial Distribution and Population Characteristics of Xylocarpus sp. in North Halmahera Regency North Maluku ]]>
<![CDATA[A.R Tolangara]]>;
<![CDATA[Nurul Amalia R.L]]>;
<![CDATA[Abdu Masââ¬â¢ud]]>;
<![CDATA[Sundari Sundari]]>
<![CDATA[ Jurnal Biologi Tropis Vol. 22 No. 1 (2022): January - March ]]>
Publisher : <![CDATA[Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia ]]>
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DOI: 10.29303/jbt.v22i1.3055
<![CDATA[North Halmahera Regency is one of the mangrove spots of the Xylocarpus sp species with a fairly abundant amount. This study aims to determine the distribution map of Xylocarpus sp species and population character of Xylocarpus sp in North Halmahera Regency. This research was conducted from April to June 2021. The method used included a mapping survey of Xylocarpus sp by recording the coordinates from GPS for each Xylocarpus sp found. Determination of population character of Xylocarpus sp was done by observing plant morphology related to vitality and periodicity. Data analysis was carried out by processing coordinate data and observational data on the character of the population of Xylocarpus sp into a base map through a GIS application. The results showed that the species Xylocarpus sp. found in North Halmahera district was Xylocarpus granatum. The distribution pattern of Xylocarpus granatum in North Halmaera is spread in groups. Population characteristics show Xylocarpus granatum in very low sociality conditions, vitality in a well-growing state, periodicity in flowering and fruiting conditions.]]>
<![CDATA[Jumping Spider (Arachnida: Salticidae: Araneae) in Serang Residential Area, Banten: Inventory Study Using A Photographic Approach ]]>
<![CDATA[Riski Andrian Jasmi]]>;
<![CDATA[Herlina Putri Endah Sari]]>;
<![CDATA[Muhammad Nazri Janra]]>
<![CDATA[ Jurnal Biologi Tropis Vol. 22 No. 1 (2022): January - March ]]>
Publisher : <![CDATA[Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia ]]>
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DOI: 10.29303/jbt.v22i1.3044
<![CDATA[Ecosystem changes due to human activities can affect habitats for several organisms, such as spiders. Spiders have an important role as a predator for mosquitoes, flies, and ants. One of the spider families is Salticidae. Most species from Salticidae are cosmopolitan and often found in an area with dense human activity, such as residential areas. Study about spider species in residential areas is important to determine the effect of urbanization on spider diversity. This research aimed to study about spider species from Salticidae family found in the Serang Residential Area. The individual spider was caught directly by hand, then documented with macro photography techniques. Data analysis was carried out by describing the morphological characters. The results showed 5 species, namely Hasarius adansoni, Menemerus nigli, Menemerus fulvulus, Plexippus paykulli and Plexippus petersi. Documentation using good photography helps in making identification easier. This research is expected to be used as a reference for further research about a spider in a residential area.]]>
<![CDATA[Stomatal Characteristics of 5 Citrus L. Species (Rutaceae) From Pekanbaru, Riau Province ]]>
<![CDATA[Nery Sofiyanti]]>;
<![CDATA[Putri Intan Wahyuni]]>;
<![CDATA[Dyah Iriani]]>
<![CDATA[ Jurnal Biologi Tropis Vol. 22 No. 1 (2022): January - March ]]>
Publisher : <![CDATA[Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia ]]>
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DOI: 10.29303/jbt.v22i1.3100
<![CDATA[Stomata of leaf is one of the important trait in plant taxonomic study. This trait can be used to characterisize the members of a plant group including Citrus.This genus is one of fruit plant that commonly known in Pekanbaru, Riau. The aim of this study was to examine the characteristic of stomata of 5 Citrus species from Pekanbaru, Riau Province, Indonesia. Leaves were collected from the field. The stomatal preparations were conducted using replica method. Stomata were then observed and photographed using Mikroskop Binokuler Olympus CX23 and Mikroskop LCD Digital Celestron Model 44340. The results show that stomata of all Citrus species examined in this study shows the similar type, hypostomatic with reniform-shaped stomata. However, the variations are found in stomata density and index, as well as the length and length of stomata. C. hystrix and C. aurantifolia have the lowest (419.89/1 mmò).), and the highest stomatal density (685.89/1 mmò).), respectively. The size of stomata varies within the species. C. microcarpa has the biggest stomata size (20.5 x 18.5 õm). àStomatal density of Citrus examined in this study are high (> 500 / mm2) in C. aurantifolia and C. limon) and medium (300 - 500 / mm2) in C. amblicarpa, C. hystrix and C. microcarpa. The density, index and size of stomata can be used to characterize each Citrus members that examined in this study.]]>
<![CDATA[The Effect of Young Leaves Extract of Arumanis Mango as an Antidepressant in Zebrafish (Danio rerio) ]]>
<![CDATA[Risda Arba Ulfa]]>;
<![CDATA[Tri Cahyanto]]>;
<![CDATA[Ikeu Winda Larasati]]>;
<![CDATA[Adisty Virakawugi Darniwa]]>;
<![CDATA[Ayuni Adawiyah]]>;
<![CDATA[Afriansyah Fadillah]]>
<![CDATA[ Jurnal Biologi Tropis Vol. 22 No. 1 (2022): January - March ]]>
Publisher : <![CDATA[Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia ]]>
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DOI: 10.29303/jbt.v22i1.3231
<![CDATA[Sustained stress is risked for the emergence of various diseases including disability to depression. Clinically, antidepressant drugs are still the main option even though they are known have side effects for users. Therefore, various types of drug plants that have the potential as natural antidepressants have begun to be used, one of them is the young leaf of mango (Mangifera indica). It is known contains various bioactive compounds, including mangiferin which is useful as an antioxidant, anti-inflammatory, and plays a role in protecting nervous tissue. This study aimed to determine the effect of Mangoââ¬â¢s young leaves extract of Arumanis cultivar as an antidepressant in zebrafish (Danio rerio) exposed to Unpredictable Chronic Stress (UCS). The method used is Completely Randomized Design (CRD) which consists of 3 treatments, namely K (Aquadest); P1 (extract concentration 10õg/mL); and P2 (extract concentration 20õg/mL). The parameters include the antioxidant activity and behavioral tests, namely new tank diving and light/dark preferences. The results showed that exposure to UCS tends to increased anxiety as indicated by a decrease in exploration on behavioral test. The data showed that the Mangoââ¬â¢s young leaves extract induction with a concentration of 20õg/mL obtained the highest value percentage in the exploration of the upper area (36.8 s) and the preference of the bright area (90.8 s) significantly. The induction of mangoââ¬â¢s young leaves extract has the potential as an antidepressant in zebrafish exposed to UCS with an optimal concentration of 20õg/ml.]]>
