Jurnal Ilmiah Biologi Eksperimen dan Keanekaragaman Hayati (J-BEKH)最新文献

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Larvicide Effects of Serratia marcescens strain MBC1 Extract on Instar III Larvae of Aedes aegyti 粘质沙雷菌MBC1菌株提取物对埃及伊蚊III龄幼虫的杀幼虫效果研究
Jurnal Ilmiah Biologi Eksperimen dan Keanekaragaman Hayati (J-BEKH) Pub Date : 2022-01-06 DOI: 10.23960/jbekh.v9i1.219
Mutia Dinda Lestari, N. Nukmal, E. Setyaningrum, S. Farisi, Achmad Arifiyanto
{"title":"Larvicide Effects of Serratia marcescens strain MBC1 Extract on Instar III Larvae of Aedes aegyti","authors":"Mutia Dinda Lestari, N. Nukmal, E. Setyaningrum, S. Farisi, Achmad Arifiyanto","doi":"10.23960/jbekh.v9i1.219","DOIUrl":"https://doi.org/10.23960/jbekh.v9i1.219","url":null,"abstract":"\u0000\u0000\u0000\u0000Bakteri merupakan kandidat yang berpotensi sebagai larvasida Aedes aegypti. Penelitian ini bertujuan untuk mengetahui pengaruh ekstrak Serratia marcecsens strain MBC1 terhadap kematian larva instar III Aedes aegypti. Penelitian ini merupakan penelitian eksperimental dengan dua macam bentuk pengujian, yaitu uji larvasida untuk menentukan mortalitas dan uji lanjut untuk melihat perkembangan larva setelah perlakuan larvasida. Larva instar III diberi perlakuan dengan konsentrasi 125, 250, 500, dan 1.000 ppm. Uji larvasida diamati selama 24-72 jam. Uji lanjut larva instar III  diberi perlakuan dengan konsentrasi 500 dan 1.000 ppm serta diamati sampai semua larva mati. Kontrol positif menggunakan Abate® 1% dan kontrol negatif menggunakan air sumur. Hasil analisis probit didapatkan bahwa nilai LC50 dan LC90 ekstrak S. marcescens adalah 66.426,02 dan 749.001,41ppm. Larva instar III mati pada 18 hari setelah perlakuan ekstrak S. marcescens strain MBC1. Hasil dari penelitian ini menunjukkan bahwa larvasida ekstrak S. marcescens mempengaruhi lamanya siklus hidup dan mati sebelum mencapai stadium dewasa.\u0000 \u0000 \u0000\u0000\u0000Bacteria have potencial as larvicide of Aedes aegypti. The purpose of this study is to determine the effect of Serratia marcescens strain MBC1 against larval third instars of Aedes aegypti. This research was an experimental study with two kinds of testing. The larvicide test to determine the mortality of the larval and the continuous test to observe the development of the larval after treatment with the larvacide. The third instars of mosquito larval were given bacterial extract in four concentrations (125, 250, 500, and 1000 ppm), and observed mortality during 72 hours. The continuous larvicide test was observed at two concentrations (500 and 1,000 ppm). The observation is completed when all of the larvae died. The positive control used Abate® 1% and the negative control used natural water. The treatment was repeated 4 times. The results show that LC50 and LC90 of S. marcescens extract are 66,426.02 dan 749,001.41 ppm.  All of the larvae in the continuous test die after 18 days have been givenan extract of S. marcescens strain MBC1. The experiment shows that the larvicide of extract of S. marcescens influences the length of the life cycle and larvae of Ae. aegypti die before reaching the adult.\u0000 \u0000 \u0000\u0000\u0000\u0000","PeriodicalId":123546,"journal":{"name":"Jurnal Ilmiah Biologi Eksperimen dan Keanekaragaman Hayati (J-BEKH)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125908908","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Potentially Invasive Plant Types in Way Kambas National Park 坎巴斯国家公园潜在入侵植物类型
Jurnal Ilmiah Biologi Eksperimen dan Keanekaragaman Hayati (J-BEKH) Pub Date : 2022-01-06 DOI: 10.23960/jbekh.v9i1.208
J. Master, Sumianto, Santoso, A. Fanani, N. Alim, I. Prastika, Muhammad Yunus
{"title":"Potentially Invasive Plant Types in Way Kambas National Park","authors":"J. Master, Sumianto, Santoso, A. Fanani, N. Alim, I. Prastika, Muhammad Yunus","doi":"10.23960/jbekh.v9i1.208","DOIUrl":"https://doi.org/10.23960/jbekh.v9i1.208","url":null,"abstract":"\u0000\u0000\u0000\u0000Tumbuhan asing invasif merupakan salah satu ancaman bagi keanekaragaman hayati Indonesia. Tumbuhan ini dapat mengubah ekosistem dengan mendominasi lanskap. Mengingat besarnya dampak yang dapat ditimbulkan oleh invasi tumbuhan di kawasan konservasi, maka perlu dilakukan inventarisasi jenis-jenis tumbuhan yang berpotensi invasif di Taman Nasional Way Kambas (TNWK), sehingga dampak negatif dari invasi akan mudah di cegah. Inventarisasi dilakukan dengan membuat plot analisis vegetasi pada empat tipe vegetasi di TNWK, yaitu vegetasi hutan, vegetasi hutan campuran, vegetasi rawa dan vegetasi alang-alang. Berdasarkan hasil analisis vegetasi, diperoleh 11 jenis tumbuhan berpotensi invasif di TNWK, yaitu Actinoscirpus grossus, Clidemia hirta, Chromolaena odorata, Fimbristylis ovata, Hyptis capitata, Imperata cylindrica, Isachne globosa, Lantana camara, Melaleuca leucadendron, Melastoma malabathricum, dan Mimosa pigra.\u0000 \u0000 \u0000\u0000\u0000Invasive alien plant species are a threat to Indonesia's biodiversity. These plants can change ecosystems by dominating landscapes. Given the magnitude of the impact that can be caused by plant invasions in conservation areas, it is necessary to carry out an inventory of potentially invasive plant species in Way Kambas National Park (TNWK), so that the negative impacts of these invasions can be easily prevented. . The inventory was carried out by plotting vegetation analysis on four types of vegetation in TNWK, namely forest vegetation, mixed forest vegetation, swamp vegetation, and alang-alang vegetation. Based on the results of the vegetation analysis, 11 species of plants that have the potential to be invasive in TNWK were found, namely Actinoscirpus grossus, Clidemia hirta, Chromolaena odorata, Fimbristylis ovata, Hyptis capitata, Imperata cylindrica, Isachne globosa, Lantana camara, Melaleuca leucadendron, Melastoma malabathricum, dan Mimosa pigra.\u0000 \u0000 \u0000 \u0000\u0000\u0000\u0000","PeriodicalId":123546,"journal":{"name":"Jurnal Ilmiah Biologi Eksperimen dan Keanekaragaman Hayati (J-BEKH)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121911103","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Eating Behavior of the Klihingan Hornbill (Anorrhinus Galeritus) When Nesting at the Way Canguk Research Station, Bukit Barisan Selatan National Park (TNBBS)
Jurnal Ilmiah Biologi Eksperimen dan Keanekaragaman Hayati (J-BEKH) Pub Date : 2022-01-06 DOI: 10.23960/jbekh.v9i1.217
Messy Apriliasari, N. Nurcahyani, E. L. Rustiati, P. Priyambodo, L. Utoyo
{"title":"Eating Behavior of the Klihingan Hornbill (Anorrhinus Galeritus) When Nesting at the Way Canguk Research Station, Bukit Barisan Selatan National Park (TNBBS)","authors":"Messy Apriliasari, N. Nurcahyani, E. L. Rustiati, P. Priyambodo, L. Utoyo","doi":"10.23960/jbekh.v9i1.217","DOIUrl":"https://doi.org/10.23960/jbekh.v9i1.217","url":null,"abstract":"\u0000\u0000\u0000\u0000Enggang klihingan merupakan salah satu jenis rangkong (Bucerotidae) yang hidup berkelompok, berperan penting secara ekologis sebagai penyebar biji. Perilaku bersarangnya unik, selama mengerami induk betina mengurung diri di lubang pohon yang ditutup lumpur dan disisakan lubang kecil untuk enggang lainnya melewatkan pakan dari luar sarang. Penelitian ini bertujuan untuk mengetahui perilaku makan enggang pada saat bersarang dan mengumpulkan data jenis buah pakannya. Penelitian dilakukan menggunakan metode focal animal sampling, pada bulan Februari – April 2021 di Stasiun Penelitian Way Canguk (SPWC), Taman Nasional Bukit Barisan Selatan (TNBBS). Perilaku enggang yang teramati dominan berupa mengeluarkan satu per satu pakan dari dalam temboloknya, kemudian memosisikan pakan ke ujung paruh untuk dimuntahkan ke sarang. Komposisi buah yang dijadikan pakan enggang meliputi 18 jenis buah, yaitu Ficus altissima, Ficus sundaica, Ficus crassiramea,  Ficus stupenda var.minor, Polyalthia lateriflora, Oncosperma horridum, Canarium megalanthum, Canthiumera glabra, Zuccarinia macrophylla, Antiaris toxicaria, Myristica sp., Horsfieldia sp., Magnolia champaca, Dysoxylumsp., Fibraurea tinctoria, Endocomia macrocoma, Actinodhapne borneensis, dan Alseodaphne falcata. Waktu yang paling sering digunakan untuk memberi makan adalah sore hari pukul 16.00 – 17.00 WIB. Rerata enggang mengunjungi sarang 15 kali/hari dan membawa paling banyak 16 buah dalam sekali kunjungan. Enggang mampu memberi makan dengan lama durasi 3 – 5 buah/menit.\u0000 \u0000 \u0000\u0000\u0000Bushy-crested hornbill is a type of hornbill (Bucerotidae) that lives in groups, playing an important ecological role. Their nesting behavior is unique, during incubation, the female locks herself in a mud-covered tree hole and leaves a small hole for other hornbills to spread food from outside the nest. This study aimed to find out the eating behavior of hornbills during nesting and collect data on the types of fruit they eat. This study was conducted using a focused animal sampling method, from February to April 2021 at Way Canguk Research Station (SPWC), Bukit Barisan Selatan National Park (TNBBS). The dominant behavior of hornbills was observed in the form of removing the bait one by one from the cache, then placing the bait to the tip of the beak to vomit into the nest. The fruit composition used as hornbill food includes 18 types of fruit, namely Ficus altissima, Ficus sundaica, Ficus crassiramea, Ficus stupenda var. minor, Polyalthia lateriflora, Oncosperma horridum, Canarium megalanthum, Canthiumera glabra, Zuccarinia macrophylla, Antiaris toxicaria, Myristica sp., Horsfieldia sp., Magnolia champaca, Dysoxylum sp., Fibraurea tinctoria, Endocomia macrocoma, and Alseodaphne falcata. The most common time used for feeding is from 16:00 - 17:00 WIB. The average hornbill visits the nest 15 times/day and brings a maximum of 16 fruits in one visit. Hornbills can feed with a fairly low duration (3-5 pieces/minute). \u0000 \u0000 \u0000\u0000\u0000\u0000","PeriodicalId":123546,"journal":{"name":"Jurnal Ilmiah Biologi Eksperimen dan Keanekaragaman Hayati (J-BEKH)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124789532","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
DETECTION OF NITROGENASE PRODUCING BACTERIA FROM THE SOIL OF LIWA BOTANICAL GARDEN 李华植物园土壤中产氮酶细菌的检测
Jurnal Ilmiah Biologi Eksperimen dan Keanekaragaman Hayati (J-BEKH) Pub Date : 2021-12-30 DOI: 10.23960/jbekh.v8i2.204
C. N. Ekowati, Mica Mirani, Kusuma Handayani, R. Agustrina
{"title":"DETECTION OF NITROGENASE PRODUCING BACTERIA FROM THE SOIL OF LIWA BOTANICAL GARDEN","authors":"C. N. Ekowati, Mica Mirani, Kusuma Handayani, R. Agustrina","doi":"10.23960/jbekh.v8i2.204","DOIUrl":"https://doi.org/10.23960/jbekh.v8i2.204","url":null,"abstract":"Liwa Botanical Gardens is an ex-situ conservation area for various types of plants. Each plant produces organic matter that will provide nutrients for the growth of nitrogen-fixing bacteria. This indicates the existence of an environment that supports the growth of nitrogen-fixing bacteria. Nitrogen is one of the nutrients needed by plants for their growth. However, the abundance of nitrogen in the atmosphere cannot be utilized directly by plants but needs to transform into ammonium and nitrate first. This transformation can be done by nitrogen-fixing bacteria through an enzymatic process. This research aims to obtain bacterial isolates that can fix nitrogen. Nitrogen-fixing bacteria were isolated using Nutrient Agar (NA) medium and furthered by nitrogenase activity detection test with semi-solid Nitrogen Free Bromothymol Blue (NFB). Nitrogen-fixing bacteria are characterized by color changes in the medium. The results obtained 22 isolates with 3 isolates detected capable of producing nitrogenase enzymes, namely TBP B3, TB1 B2, and TMA2 B2.","PeriodicalId":123546,"journal":{"name":"Jurnal Ilmiah Biologi Eksperimen dan Keanekaragaman Hayati (J-BEKH)","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129740958","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
DYNAMICS OF BRYOPHYTES SPECIES DIVERSITY IN THE LOWLAND ECOSYSTEMS, CIBINONG SCIENCE CENTER-BOTANICAL GARDEN 低地生态系统苔藓植物物种多样性动态,慈滨农科学中心-植物园
Jurnal Ilmiah Biologi Eksperimen dan Keanekaragaman Hayati (J-BEKH) Pub Date : 2021-12-30 DOI: 10.23960/jbekh.v8i2.194
Fandri Sofiana Fastanti, T. Y. I. Wulansari
{"title":"DYNAMICS OF BRYOPHYTES SPECIES DIVERSITY IN THE LOWLAND ECOSYSTEMS, CIBINONG SCIENCE CENTER-BOTANICAL GARDEN","authors":"Fandri Sofiana Fastanti, T. Y. I. Wulansari","doi":"10.23960/jbekh.v8i2.194","DOIUrl":"https://doi.org/10.23960/jbekh.v8i2.194","url":null,"abstract":"Bryophytes are a group of plants generally with small sizes and spores as generative reproduction. There are three main groups of Bryophytes: liverworts or hepatics (Marchantiophyta), mosses (Bryophyta), and hornworts (Anthocerophyta). They are found in almost all ecosystems. Ecopark Cibinong Science Center-Botanical Garden (CSC-BG) is a lowland ecosystem protection area located in industrial cities. The bryophytes species that were carried out in 2009 and 2010 are inadequate. Re-exploration activity was carried out from June 2018 until January 2019 in all blocks of Ecopark. This study aims to report an update of bryophytes data in Ecopark. A total of 20 species of bryophytes were found in this research. Fissidens is the most common genus of bryophytes. There are 11 species of bryophytes and 9 species are new data records for Ecopark CSC-BG. This study updated bryophyte diversity data from Ecopark CSC-BG in 2009 and 2010, resulting in the discovery of 30 species (27 species mosses, 3 species liverworts), including 10 species not found in previous studies. There are no hornworts found in Ecopark CSC-BG.","PeriodicalId":123546,"journal":{"name":"Jurnal Ilmiah Biologi Eksperimen dan Keanekaragaman Hayati (J-BEKH)","volume":"30 5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116619369","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
THE EFFECTIVENESS OF PEPPER LEAVES (Piper nigrum L.) AS A LARVACIDE OF Aedes aegypti MOSQUITO 辣椒叶的药效研究作为埃及伊蚊的幼虫
Jurnal Ilmiah Biologi Eksperimen dan Keanekaragaman Hayati (J-BEKH) Pub Date : 2021-12-30 DOI: 10.23960/jbekh.v8i2.187
Yuyun Solihat, Emantis Rosa, Gina Dania Pratami, N. Nurcahyani
{"title":"THE EFFECTIVENESS OF PEPPER LEAVES (Piper nigrum L.) AS A LARVACIDE OF Aedes aegypti MOSQUITO","authors":"Yuyun Solihat, Emantis Rosa, Gina Dania Pratami, N. Nurcahyani","doi":"10.23960/jbekh.v8i2.187","DOIUrl":"https://doi.org/10.23960/jbekh.v8i2.187","url":null,"abstract":"Dengue Hemorrhagic Fever (DHF) cases are quite high in Indonesia. One of the causes of high dengue cases is the high vector population, namely the Aedes aegypti mosquito. Mosquito control Ae. aegypti one of them uses larvicides to break the chain of reproduction. The use of chemical-based larvicides can be bad because it can pollute the environment and cause resistance. As an alternative, you can use natural larvicides made from plants. One of the plants that have the potential as larvicides are pepper (Piper nigrum L.) because it contains compounds that can be toxic to insects such as saponins, flavonoids, alkaloids, and essential oils. In addition, pepper plants are widely cultivated in Lampung and are easy to obtain. The purpose of this study was to determine the effectiveness of pepper leaf (P. nigrum L.) as larvicide for Ae. aegypti. This study used a completely randomized design (CRD). There was 1 control and 5 treatments in the form of pepper leaf extract with concentrations of 0.2%, 0.4%, 0.6%, 0.8%, and 1%. The test material used was Ae. aegypti instar III. Each treatment used 25 larvae with 4 repetitions. Observations were made after 24 hours of treatment. The data obtained in the form of the number of larval deaths were analyzed using one-way ANOVA and Post hoc LSD test. The results of this study showed a significant difference (p = 0.000), and it was found that a concentration of 1% was the most effective concentration as a larvicide for Ae. aegypti with a larval mortality percentage of 92%.","PeriodicalId":123546,"journal":{"name":"Jurnal Ilmiah Biologi Eksperimen dan Keanekaragaman Hayati (J-BEKH)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121704960","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
EVALUATION OF WATER QUALITY IN ANIMAL FEED FACTORY ENVIRONMENT BASED ON PLANKTON AND BENTHOS BIOINDICATORS 基于浮游生物和底栖生物指标的动物饲料厂环境水质评价
Jurnal Ilmiah Biologi Eksperimen dan Keanekaragaman Hayati (J-BEKH) Pub Date : 2021-12-30 DOI: 10.23960/jbekh.v8i2.192
Feni Yulinda, Tugiyono, A. Setiawan, E. L. Rustiati
{"title":"EVALUATION OF WATER QUALITY IN ANIMAL FEED FACTORY ENVIRONMENT BASED ON PLANKTON AND BENTHOS BIOINDICATORS","authors":"Feni Yulinda, Tugiyono, A. Setiawan, E. L. Rustiati","doi":"10.23960/jbekh.v8i2.192","DOIUrl":"https://doi.org/10.23960/jbekh.v8i2.192","url":null,"abstract":"Water is a source of life that plays an important role for all living things. Rivers are one of the water sources that are vulnerable to pollution. This study aimed to evaluate the water quality of the Way Napal river based on the diversity of plankton and benthos. The research was conducted from November 2020 to March 2021. Sampling and analysis were performed by field technicians from the SEAMEO BIOTROP Environmental Laboratory. Plankton diversity was calculated using the Shannon Weaver diversity index. The results showed that the phytoplankton diversity index at AP-1, AP-2, and AP-3 locations ranged between 2,080-2,278 these values had moderate biota stability and were included in the uncontaminated category. The zooplankton diversity index at the AP-1 location has a value of 1,119 with moderate biota stability and is included in the moderate category, while at the AP-2 and AP-3 locations it has a value of 0.925-0.995 with unstable biota diversity and is included in the highly polluted category. The Benthos diversity index ranges from 1.343 - 1.772 with moderate biota stability and is included in the moderately polluted category.","PeriodicalId":123546,"journal":{"name":"Jurnal Ilmiah Biologi Eksperimen dan Keanekaragaman Hayati (J-BEKH)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125432034","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
RESISTANCE OF CHILLI (Capsicum annuum L.) FROM SEEDS INDUCED BY 0.2 mT MAGNETIC FIELD AND INFECTED BY Fusarium oxysporum 辣椒的抗性研究用0.2 mT磁场诱导的尖孢镰刀菌侵染种子
Jurnal Ilmiah Biologi Eksperimen dan Keanekaragaman Hayati (J-BEKH) Pub Date : 2021-12-30 DOI: 10.23960/jbekh.v8i2.191
Feni Kaisah, R. Agustrina, E. Ernawiati, M. L. Lande, L. Chrisnawati
{"title":"RESISTANCE OF CHILLI (Capsicum annuum L.) FROM SEEDS INDUCED BY 0.2 mT MAGNETIC FIELD AND INFECTED BY Fusarium oxysporum","authors":"Feni Kaisah, R. Agustrina, E. Ernawiati, M. L. Lande, L. Chrisnawati","doi":"10.23960/jbekh.v8i2.191","DOIUrl":"https://doi.org/10.23960/jbekh.v8i2.191","url":null,"abstract":"Red chili pepper (Capsicum annuum L.) is one of the most widely cultivated commodities in Indonesia. However, until now the production was never covering the public’s demand. Red chili pepper plants are susceptible to disease caused by the infection of Fusarium oxyporum (Fox) fungi, causing a decrease in plants’ production. Fungicide usage to control Fox can cause plants’ resistance to the pathogen. The eco-friendly way to control Fox could be achieved by utilizing a magnetic field. This research arranged using Completely Randomized Design (CRD) with the combination between 0,2 mT magnetic field induction and Fox infection consist of control (M0); 0,2 mT magnetic field induction for 7 minutes and 48 seconds (M7); and 15 minutes and 36 minutes (M15); as well as seed infection with Fusarium oxyporum that consist of control without infection (F0) and infected for 60 minutes (F60). Each test unit was repeated 5 times. \u0000 ","PeriodicalId":123546,"journal":{"name":"Jurnal Ilmiah Biologi Eksperimen dan Keanekaragaman Hayati (J-BEKH)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130632524","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
PRODUCTION OF AMYLOCELLULOLYTIC ENZYMES AND THEIR VIABILITY ON CARRIER MEDIA BY Bacillus sp. U4 AND Pseudomonas sp. U3 芽孢杆菌U4和假单胞菌U3在载体上产生淀粉样纤维素酶及其活力
Jurnal Ilmiah Biologi Eksperimen dan Keanekaragaman Hayati (J-BEKH) Pub Date : 2021-12-30 DOI: 10.23960/jbekh.v8i2.186
E. Zulaika, Salma Shavira Rahma Khofifah
{"title":"PRODUCTION OF AMYLOCELLULOLYTIC ENZYMES AND THEIR VIABILITY ON CARRIER MEDIA BY Bacillus sp. U4 AND Pseudomonas sp. U3","authors":"E. Zulaika, Salma Shavira Rahma Khofifah","doi":"10.23960/jbekh.v8i2.186","DOIUrl":"https://doi.org/10.23960/jbekh.v8i2.186","url":null,"abstract":"Amylase and cellulase are enzymes that are amyocellulolytic. Both are extracellular enzymes that can degrade organic materials, namely starch and cellulose. The purpose of this study was to determine whether Bacillus sp. U4 and Pseudomonas sp. U3 could produce amylocellulolytic enzymes and determine their viability after being incubated for 2 hours on the husk, peat, and sawdust carrier media. Screening for the presence of amylase was carried out on a selective medium, namely nutrient agar-amylum 0.5 %, and cellulase on carboxymethyl cellulose-agar medium. Both isolates were inoculated into sawdust, husk, peat carrier media and incubated for 2 hours. Viability was observed using the total plate count method. Bacillus sp. U4 and Pseudomonas sp. U3 can produce amylase and cellulase. The best isolate viability after incubation for 2 hours was found in husk carrier media with 2.13 x 105 CFU/gr of husk media.","PeriodicalId":123546,"journal":{"name":"Jurnal Ilmiah Biologi Eksperimen dan Keanekaragaman Hayati (J-BEKH)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129642784","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
AIR QUALITY AND NOISE STUDY IN SETTLEMENTS AND METAL SCRAP MELTING FACTORY 居民点和金属废料熔炼厂空气质量和噪声研究
Jurnal Ilmiah Biologi Eksperimen dan Keanekaragaman Hayati (J-BEKH) Pub Date : 2021-12-30 DOI: 10.23960/jbekh.v8i1.159
Wahid Giantara, T. Tugiyono, Agus Setiawan, G. N. Susanto
{"title":"AIR QUALITY AND NOISE STUDY IN SETTLEMENTS AND METAL SCRAP MELTING FACTORY","authors":"Wahid Giantara, T. Tugiyono, Agus Setiawan, G. N. Susanto","doi":"10.23960/jbekh.v8i1.159","DOIUrl":"https://doi.org/10.23960/jbekh.v8i1.159","url":null,"abstract":"Air is an important component for the survival of living things, especially humans. However, air quality has decreased due to pollution. The harmful elements that enter the atmosphere are Carbon Monoxide (CO), Nitrogen Dioxide (NO2), Sulfur Dioxide (SO2), Particulates (PM10), and Ozone (O3). Noise is defined as unwanted sound or sound so that it disturbs and endangers health. Sources of noise are divided into moving and stationary noise sources. The method used in this research is grab sampling by installing an air sampler impinger to capture particles or pollutants as well as taking noise data using a simple method with a Sound Level Meter with a reading every 5 seconds within 10 minutes for one measurement. The results showed that the air quality in residential and workspace areas was still within quality standards. The noise level in residential areas is still acceptable, but the noise level in the production room surpasses the acceptable limit.","PeriodicalId":123546,"journal":{"name":"Jurnal Ilmiah Biologi Eksperimen dan Keanekaragaman Hayati (J-BEKH)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122568082","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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