Jurnal Bioteknologi & Biosains Indonesia (JBBI)

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ISSN / EISSN : 2442-2606 / 2548-611X
Total articles ≅ 114
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Khalisa Aini Sinaga, Dyah Retno Wulandari, Diah Ratnadewi
Jurnal Bioteknologi & Biosains Indonesia (JBBI), Volume 7, pp 171-181; doi:10.29122/jbbi.v7i2.3944

Abstract:
Optimation of In Vitro Shoot Proliferation Medium for Diploid and Tetraploid Kaliurang Taro (Colocasia esculenta L.) Taro cv. Kaliurang has a good taste and is tolerant to certain pests and diseases but its development is hampered by insufficient number of good quality plant materials. Quality improvement has been carried out through polyploidization. Shoot multiplication is an important step in micropropagation, which often needs specific formulation of culture medium. This study aimed to obtain an optimum formulation of in vitro shoot-inducing medium of taro cv. Kaliurang. Explants from one diploid and three tretraploid clones were subjected to six treatments of medium formulations with various concentrations of thiamine and adenine in BAP-containing MS media. Shoots were then rooted, followed by plantlet acclimatization. Ploidy level was measured using flow cytrometry. The rooting medium was ½ MS without growth hormones, whereas acclimatization medium was a mixture of sterile soil, husk, and cocopeat. The results showed that MS + 2 mg L-1 BAP + 4 mg L-1 thiamine + 2 mg L-1 adenine was the optimum medium with an average 3.45 shoots per explant. Plantlet acclimatization was successful with 99.1% survival. Flow cytometry measurement confirmed tetraploidy level of the regenerants from 3 tetraploid clones. Keywords: adenine, acclimatization, benzyl amino purine, shoot proliferation, thiamine ABSTRAK Talas Kaliurang memiliki rasa yang enak dan toleran terhadap hama dan penyakit tertentu, namun pengembangannya terkendala oleh ketercukupan benih bermutu. Upaya perbaikan mutu tanaman telah dilakukan sebelumnya melalui poliploidisasi. Perbanyakan tunas merupakan langkah penting, yang membutuhkan formula spesifik untuk media kultur. Penelitian ini bertujuan untuk mengoptimasi medium perbanyakan tunas in vitro dari satu klon diploid dan tiga klon tetraploid, yang dikulturkan pada enam konsentrasi tiamin dan adenin dalam media MS yang mengandung BAP. Tunas kemudian diinduksi akar, lalu diaklimatisasi, dan pengukuran tingkat ploidi menggunakan flow cytometry. Media pengakaran adalah ½ MS tanpa ZPT, media aklimatisasi adalah campuran tanah steril, sekam dan kokopit. Hasil penelitian ini menunjukkan bahwa medium MS + 2 mg L-1 BAP + 4 mg L-1 tiamin + 2 mg L-1 adenin merupakan medium optimum dengan rata-rata 3,45 tunas per-eksplan. Hasil aklimatisasi menunjukkan bahwa 99,1% tanaman dapat bertahan hidup. Analisis ploidi dengan flow cytometry menunjukkan bahwa tanaman hasil regenerasi tunas talas Kaliurang tetraploid memiliki tingkat ploidi yang stabil.
Syadwina Hamama Dalimunthe, Tatik Chikmawati, Elizabeth A. Widjaja
Jurnal Bioteknologi & Biosains Indonesia (JBBI), Volume 7, pp 182-193; doi:10.29122/jbbi.v7i2.3229

Abstract:
The revision of Ampelocissus was performed by observing the anatomical character of Ampelocissus leaves. The leaves were collected from 33 collection numbers of Herbarium Bogoriense (BO) and four collection numbers from Sumatra exploration. The purpose of this study is to update the information of diversity and to support species concept delimitation of Ampelocissus based on the anatomical study, especially on the sterile plant. Anatomical characters were observed on nine species and one variety of Sumatran Ampelocissus. Ampelocissus species is varied by the anatomical characters, i.e.: shape of the anticlinal wall of abaxial and adaxial epidermal cell, number of palisade layers, upper epidermal cell thickness, leaf thickness, presence of papillae on stomata neighboring cell, type, and shape of calcium oxalate crystals, also stomata position. The cluster analysis of Ampelocissus in Sumatra based on 16 anatomical characters showed the coefficient similarity in the range of 0.48 - 0.81. The research showed that the leaf anatomical characters can be used as additional characters to distinguish the species of Ampelocissus. Keywords: calcium oxalate crystals, diversity, papillae, similarity coefficient, species concept ABSTRAK Ciri Anatomi Ampelocissus (Vitaceae) di Sumatera Revisi Ampelocissus dilakukan dengan mengamati ciri anatomi daun dari marga Ampelocissus. Sebanyak 33 nomor koleksi Herbarium Bogoriense (BO) dan empat nomor koleksi hasil eksplorasi di Sumatera digunakan. Penelitian ini bertujuan untuk memperbarui informasi mengenai keanekaragaman dan mendukung konsep jenis Ampelocissus berdasarkan ciri anatomi, terutama pada tumbuhan steril. Studi anatomi dilakukan pada sembilan jenis dan satu varietas Ampelocissus di Sumatera. Jenis-jenis Ampelocissus di Sumatera bervariasi pada ciri anatomi yaitu bentuk dinding antilkinal sel epidermis pada bagian abaksial dan adaksial, jumlah lapisan jaringan tiang, ketebalan sel epidermis atas, ketebalan daun, kehadiran papila, jenis dan bentuk kristal kalsium oksalat, serta posisi stomata terhadap sel epidermis pada bagian abaksial daun. Analisis pengelompokan Ampelocissus di Sumatera menggunakan 16 ciri antomi dan menghasilkan fenogram dengan koefisien kemiripan 0,48 - 0,81. Ciri anatomi daun dapat digunakan sebagai ciri tambahan yang memiliki nilai taksonomi dalam membedakan jenis-jenis Ampelocissus di Sumatera.
Elida Novita, Sri Wahyuningsih, Dwi Andriana Na'Imatul Jannah, Hendra Andiananta Pradana
Jurnal Bioteknologi & Biosains Indonesia (JBBI), Volume 7; doi:10.29122/jbbi.v7i1.3850

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Idah Rosidah, Sri Ningsih, Tiya Novita Renggani, Julham Efendi, Kurnia Agustini
Jurnal Bioteknologi & Biosains Indonesia (JBBI), Volume 7; doi:10.29122/jbbi.v7i1.3568

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Diana Chusna Mufida, Yuna Annisa Salsabila, Enny Suswati, Bagus Hermansyah, Dini Agustina
Jurnal Bioteknologi & Biosains Indonesia (JBBI), Volume 7; doi:10.29122/jbbi.v7i1.3930

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I Gde Adi Suryawan Wangiyana, Akram, Farouq Isbulloh
Jurnal Bioteknologi & Biosains Indonesia (JBBI), Volume 7; doi:10.29122/jbbi.v7i1.3862

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Yati Maryati, Agustine Susilowati, Nina Artanti, Puspa Dewi Narij Lotulung, Aspiyanto Aspiyanto
Jurnal Bioteknologi & Biosains Indonesia (JBBI), Volume 7; doi:10.29122/jbbi.v7i1.3732

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Afif Muhammad Akhrom, Indarjulianto Soedarmanto, Yanuartono Yanuartono, Trini Susmiati, Alfarisa Nururrozi, Slamet Raharjo
Jurnal Bioteknologi & Biosains Indonesia (JBBI), Volume 7, pp 1–8-1–8; doi:10.29122/jbbi.v7i1.3178

Abstract:
Phenotype determination of sex in young canaries is very low in accuracy. This study aimed to develop a genotypic sexing method in canaries. This study used 12 canaries consisting of 3 mature males, 3 mature females and 6 one-month-old canaries. Phenotypic sexing by cloacal observation was done on all birds, continued by genotypic sexing to identification CHD1 gene using polymerase chain reaction (PCR). The PCR used blood samples for mature canaries, and feather for mature and one-month-old canaries. The results of phenotypic observations showed that all mature male canaries had prominent and pointed cloaca forms, all mature females had flat and wide, whereas all one-month-old birds had a flat cloaca. The result of PCR showed a single band (500 bp) for mature male and double bands (500 bp and 300 bp) for mature female canaries. The PCR results of one-month-old canaries showed that there were one male and five females. Based on this study, it was concluded that genotypic sexing using the PCR method is effective in the sex determination of canaries.Keywords: canary, CHD1, genotype, PCR, sexing ABSTRAKPenentuan jenis kelamin burung kenari muda secara fenotip akurasinya sangat rendah. Penelitian ini bertujuan untuk menentukan jenis kelamin burung kenari secara genotip. Penelitian ini menggunakan 12 ekor burung kenari, terdiri dari 6 ekor dewasa (3 jantan, 3 betina) serta 6 ekor umur 1 bulan. Semua burung ditentukan jenis kelaminnya dengan mengamati kloaka dan identifikasi gen CHD1 menggunakan teknik polymerase chain reaction (PCR). Sampel DNA berasal dari darah dan bulu untuk burung dewasa serta bulu untuk burung umur 1 bulan. Pengamatan fenotip menunjukkan bahwa burung kenari dewasa jantan mempunyai bentuk kloaka menonjol dan runcing, dewasa betina berbentuk datar dan lebar, sedangkan semua burung umur 1 bulan mempunya bentuk kloaka datar. Hasil identifikasi gen CHD1 diperoleh adanya 1 pita gen sekitar 500 bp dari sampel darah dan bulu semua burung kenari dewasa jantan, dan 2 pita gen sekitar 500 bp dan 300 bp dari sampel semua burung kenari betina dewasa. Hasil PCR pada sampel burung umur 1 bulan menunjukkan bahwa 1 ekor jantan dan 5 ekor betina. Berdasarkan penelitian ini dapat disimpulkan bahwa penentuan jenis kelamin secara genotip menggunakan gen CHD1 dapat dilakukan pada burung kenari.
Dhea Marliana Salsabila, Taufik Maryusman, Iin Fatmawati
Jurnal Bioteknologi & Biosains Indonesia (JBBI), Volume 7, pp 18-27; doi:10.29122/jbbi.v7i1.3730

Abstract:
Metabolic syndrome begins with insulin resistance characterized by hyperglycemia. Synbiotic kefir banana (Musa balbisiana Colla) flour reduces blood glucose level. This study was conducted to analyze the effects of synbiotic kefir banana (M. balbisiana) flour on blood glucose level of metabolic syndrome rats. This study used 24 Sprague Dawley.rats which were divided into four groups, i.e. negative control was given standard diet, positive control was given high fat fructose diet (HFFD), treatment I (PI) and treatment II (PII) were given HFFD and synbiotic kefir banana (M. balbisiana) flour 1.8 mL 200 g־¹ rat BW per day (PI) and 3.6 mL 200 g־¹ rat BW per day (PII), respectively, for three weeks. The result showed a significant difference (p=0.000) in blood glucose after giving synbiotic kefir banana (M. balbisiana) flour. Synbiotic kefir banana (M. balbisiana) flour reduced blood glucose level in metabolic syndrome rats.Keywords: banana flour, blood glucose level, kefir, metabolic syndrome, synbiotic ABSTRAKSindrom metabolik diawali resistensi insulin yang ditandai hiperglikemia. Sinbiotik kefir tepung pisang batu (M. balbisiana) menurunkan kadar glukosa darah. Penelitian ini dilakukan untuk menganalisis pengaruh sinbiotik kefir tepung pisang batu (M. balbisiana) terhadap kadar glukosa darah tikus sindrom metabolik. Penelitian ini menggunakan 24 tikus Sprague Dawley yang dibagi menjadi empat kelompok, yaitu kontrol negatif yang diberi pakan standar, kontrol positif yang diberi high fat fructose diet (HFFD), dan perlakuan I (PI) serta perlakuan II (PII) yang masing-masing diberi HFFD dan sinbiotik kefir tepung pisang batu (M. balbisiana) 1,8 mL 200 g־¹ BB tikus per hari (PI) dan 3,6 mL 200 g־¹ BB tikus per hari (PII) selama tiga minggu. Hasil menunjukkan perbedaan kadar glukosa darah setelah pemberian sinbiotik kefir tepung pisang batu (M. balbisiana) secara signifikan (p=0,000). Sinbiotik kefir tepung pisang batu (M. balbisiana) menurunkan kadar glukosa darah tikus sindrom metabolik.
Tri Ratna Sulistiyani, Siti Meliah, Damayanti
Jurnal Bioteknologi & Biosains Indonesia (JBBI), Volume 7, pp 37–47-37–47; doi:10.29122/jbbi.v7i1.3997

Abstract:
Eurycoma longifolia (pasak bumi) is known as a medicinal plant that contains biologically active compounds. Studies on endophytic bacteria associated with pasak bumi and their biocontrol activities have not been widely reported. The objective of this study is to isolate potential endophytic bacteria associated with E. longifolia possessing biocontrol activity against plant pathogenic fungi, Sclerotium rolfsii, Fusarium solani, F. oxysporum, and Colletotrichum gloeosporioides. Endophytic bacteria were isolated from the roots of E. longifolia using the plant piece method and identified based on 16S rRNA genes analysis. Antagonist test of bacterial isolates was conducted by dual confrontation method. The mechanisms of fungal growth inhibition were evaluated based on their ability to produce hydrolytic enzymes, antibiotic, and volatile organic compounds. Two isolates were obtained and identified as Stenotrophomonas maltophilia (Apb1) and Serratia marcescens (Apb2). Apb2 was able to inhibit the growth of four tested fungi and showed protease, chitinase as well as cellulase activities. The crude extract and volatile organic compound produced by Apb2 were active against F. solani growth.Keywords: biocontrol, endophytic, Eurycoma longifolia, fungi, inhibition mechanism ABSTRAKEurycoma longifolia (pasak bumi) dikenal sebagai tanaman obat yang mengandung beberapa senyawa aktif secara biologis. Penelitian mengenai bakteri endofit yang berasosiasi dengan tanaman pasak bumi berikut aktivitas biokontrolnya belum banyak dilaporkan. Penelitian ini bertujuan mengisolasi bakteri endofit potensial dari tanaman E. longifolia yang memiliki aktivitas biokontrol terhadap empat strain uji jamur patogen tanaman, yaitu Sclerotium rolfsii, Fusarium solani, F. oxysporum, dan Colletotrichum gloeosporioides. Bakteri endofit diisolasi dari akar E. longifola menggunakan metode plant piece dan diidentifikasi berdasarkan analisis gen 16S rRNA. Uji antagonis isolat bakteri dilakukan dengan metode konfrontasi ganda. Mekanisme penghambatan jamur patogen tanaman dievaluasi berdasarkan kemampuannya dalam memproduksi enzim hidrolisis, senyawa antibiotik, dan senyawa organik volatil. Dua isolat bakteri endofit berhasil diperoleh dan teridentifikasi sebagai Stenotrophomonas maltophilia  (Apb1) dan Serratia marcescens (Apb2). Isolat Apb2 mampu menghambat pertumbuhan keempat jamur yang diuji dan menunjukkan aktivitas protease, kitinase dan selulase. Ekstrak kasar dan senyawa organik volatil yang dihasilkan oleh isolat Apb2 aktif menghambat pertumbuhan F. solani.
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