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Biotika: Jurnal Ilmiah Biologi
Published by Universitas Padjadjaran
ISSN : 14124297     EISSN : 26214180     DOI : https://doi.org/10.24198/biotika
Core Subject : Science, Agriculture,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Immunology & microbiology
BIOTIKA Jurnal Ilmiah Biologi adalah Jurnal terbuka yang diterbitkan oleh Departemen Biologi Universitas Padjadjaran yang berdiri sejak tahun 2002. Artikel yang diterbitkan di Jurnal Biotika meliputi semua artikel penelitian asli (original article) yang relevan dengan bidang Biologi dan akan ditelaah secara tertutup oleh mitra bestari. Dalam era interdisipliner ini, Biotika berperan sebagai media komunikasi ilmiah untuk bidang Biologi dan aplikasi terapannya yang relevan, seperti mikrobiologi, genetika dan molekuler, biologi struktur, biologi fungsi, biologi lingkungan maupun biologi terapan. Biotika juga berperan dalam menerbitkan hasil penelitian yang berkualitas dari peneliti muda untuk dapat dijadikan informasi ilmiah bagi pengembangan ilmu pengetahuan dan penelitian. Para kontributor Jurnal Biotika terbuka untuk peneliti dari bidang-bidang terkait, akademisi dan mahasiswa berbagai strata (S1, S2, dan S3). Jurnal BIOTIKA diterbitkan setiap 6 bulan sekali yaitu bulan Juni dan Desember.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Pertanian dan Biologi (Lain-Lain)
Articles 257 Documents
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Studi Vegetasi Sekitar Sarang Orangutan (Pongo pygmaeus) di Kabupaten Kapuas Hulu, Kalimantan Barat Fitriyani Safitri; Teguh Husodo; Parikesit Parikesit
BIOTIKA Jurnal Ilmiah Biologi Vol 11, No 1 (2013): BIOTIKA JUNI 2013
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/bjib.v11i1.10042

Abstract

IDENTIFIKASI PENYEBAB PENYAKIT LAPUK AKAR DAN PANGKAL BATANG (LAPB) TEBU DI PT GUNUNG MADU PLANTATIONS LAMPUNG TENGAH , ,. Hersanti; Remaja Sitepu
BIOTIKA Jurnal Ilmiah Biologi Vol 4, No 1 (2005): Biotika Juni 2005
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/bjib.v4i1.291

Abstract

BIODEGRADATION TEST ON THE LUBRICATING OIL IN THE FRESH AND SEA WATER OF THE BACTERIA FROM SOIL CONTAMINATED LUBRICATING OIL Ratu Safitri; E. M. Soekartadiredja; Febby Hauwita; Rymond J. Rumampuk
BIOTIKA Jurnal Ilmiah Biologi Vol 2, No 1 (2003): Biotika Juni 2003
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/bjib.v2i1.225

Abstract

EFEKTIVITAS FORMULASI Helicoverpa armigera Nuclear Polyhedrosis Virus SUBKULTUR (HaNPV1 ) DALAM BERBAGAI BAHAN PEMBAWA TERHADAP MORTALITAS DAN PERTUMBUHAN Crocidolomia pavonana Fabricius Amalia Fildzah Tamii; Mia Miranti Rustama; Melanie Melanie
BIOTIKA Jurnal Ilmiah Biologi Vol 12, No 1 (2014): BIOTIKA JUNI 2014
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/bjib.v12i1.10073

Abstract

UJI AKTIVITAS ANTIBAKTERI DARI EKSTRAK AIR DAN ETANOL BAWANG PUTIH (Allium sativum L.) TERHADAP BAKTERI GRAM NEGATIF DAN GRAM POSITIF YANG DIISOLASI DARI UDANG DOGOL (Metapenaeus monoceros), UDANG LOBSTER (Panulirus sp), DAN UDANG REBON (Mysis dan Acetes) Martha Elselina Lingga; Mia Miranti Rustama
BIOTIKA Jurnal Ilmiah Biologi Vol 5, No 2 (2006): BIOTIKA DESEMBER 2006
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/bjib.v5i2.337

Abstract

TOKSISITAS DAN DAYA HAMBAT EKSTRAK BIJI NIMBA (Azadirachta indica A. Juss) TERHADAP LARVA NYAMUK Aedes aegypti L. Hikmat Kasmara
BIOTIKA Jurnal Ilmiah Biologi Vol 3, No 2 (2004): Biotika Desember 2004
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/bjib.v3i2.273

Abstract

MUTAGENISITAS PARAKUAT DIKLORIDA PADA SEL SPERMATID MENCIT SWISS-WEBSTER (Mus musculus) DENGAN UJI MIKRONUKLEUS Cucu Hadiansyah; Siskasari Polianti
BIOTIKA Jurnal Ilmiah Biologi Vol 1, No 1 (2002): Biotika Juni 2002
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/bjib.v1i1.153

Abstract

Research on the mutagenicity of paraquat to the spermatid of Swiss-Webster mice had been  studied  by micronucleus assay.  The doses of paraquat, which were  17;  25,5;  34 mg/kg bw, physiological saline as negative control, and 40 mg/kg bw of cyclophosphamide as positive control, each administered intraperitoneally at six consecutive times to male Swiss-Webster mice. The spermatid samples taken 16 days later since the first treatment by cell masseration method in trypsin and DNase solution, to formed  germ cells suspension.  Cells  suspension  were  filtered  (mesh  no. 325) and centrifuged (100 rpm, 5 minutes) then the pellet were smeared and stained by Giemsa staining. The micronucleus in spermatid (MN-spermatid) were observed in these preparation as a dark blue spherical or ellipsoidal node with size among 1/5 – 1/3 to the nucleus diameter and counted per 500 spermatid per animal. The frequencies of MN-spermatid observed after having induced by paraquat was significant (p<0.05) at the dose of 25.5 mg/kg bw and highly significant (p<0.01) at the dose of 34 mg/kg bw to the negative control.  The induction of micronucleus by paraquat had a positive correlation  to  the given doses. On this research, 34 mg/kg bw of paraquat induced 12.0 ± 2.45‰ were similar (p<0.01) to the induction of 40 mg/kg bw of cyclophosphamide (15.6 ± 2.00‰), these indicated that paraquat had a mutagenic effect to the mice spermatid as same as a level of cyclophosphamide mutagenicity.Research on the mutagenicity of paraquat to the spermatid of Swiss-Webster mice had been  studied  by micronucleus assay.  The doses of paraquat, which were  17;  25,5;  34 mg/kg bw, physiological saline as negative control, and 40 mg/kg bw of cyclophosphamide as positive control, each administered intraperitoneally at six consecutive times to male Swiss-Webster mice. The spermatid samples taken 16 days later since the first treatment by cell masseration method in trypsin and DNase solution, to formed  germ cells suspension.  Cells  suspension  were  filtered  (mesh  no. 325) and centrifuged (100 rpm, 5 minutes) then the pellet were smeared and stained by Giemsa staining. The micronucleus in spermatid (MN-spermatid) were observed in these preparation as a dark blue spherical or ellipsoidal node with size among 1/5 – 1/3 to the nucleus diameter and counted per 500 spermatid per animal. The frequencies of MN-spermatid observed after having induced by paraquat was significant (p<0.05) at the dose of 25.5 mg/kg bw and highly significant (p<0.01) at the dose of 34 mg/kg bw to the negative control.  The induction of micronucleus by paraquat had a positive correlation  to  the given doses. On this research, 34 mg/kg bw of paraquat induced 12.0 ± 2.45‰ were similar (p<0.01) to the induction of 40 mg/kg bw of cyclophosphamide (15.6 ± 2.00‰), these indicated that paraquat had a mutagenic effect to the mice spermatid as same as a level of cyclophosphamide mutagenicity.
FLUKTUASI POPULASI HAMA WERENG BATANG COKLAT (Nilaparvata lugens Stal.) DAN SPESIES MUSUH ALAMINYA DI DATARAN MENENGAH KECAMATAN LELES KABUPATEN GARUT Martua Suhunan Sianipar; Rika Meliansyah; Alghif Aruni Nur Rukman
BIOTIKA Jurnal Ilmiah Biologi Vol 14, No 1 (2016): BIOTIKA JUNI 2016
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/bjib.v14i1.14412

Abstract

Wereng Batang Cokat (Nilaparvata lugens Stal.) merupakan hama utama tanaman padi.Penelitian ini bertujuan mempelajari ǃuktuasi populasi WBC dan spesies musuh alaminya pada tanaman padi di dataran menengah. Penelitian ini dilakukan dengan metode survei. Survei dilakukan pada tiga lahan percobaan yang bertempat di Kecamatan Leles Kabupaten Garut dan di rumah kaca Departemen Hama dan Penyakit Tumbuhan Fakultas Pertanian Universitas Padjadjaran. Metode pengambilan sampel dilakukan secara diagonal menggunakan perangkap kuning serta manual atau visual counting. Hasil penelitian menunjukkan suhu, kelembaban dan curah hujan tidak memberikan pengaruh yang signiƶkan terhadap ǃuktuasi populasi WBC. Hal ini ditunjukan dengan hasil analisis regresi masing-masing pada suhu (Y= -2,559 + 66,470 x ; R2=0,054 ; P = 0,519), kelembaban (Y= -1,378 + 105,347x ; R2=0,332 ; P = 0,081) dan curah hujan (Y= 0,175 + 4,803x ; R2=0,248 ; P = 0,143). Indeks keragaman musuh alami dari rendah sampai sedang.
STRUKTUR KOMUNITAS TUMBUHAN ALAMI PADA LOKASI BUDIDAYA MAKROALGA Kappaphycus alvarezii Doty (Doty) DI PULAU PRAMUKA, KEPULAUAN SERIBU Tri Dewi k Pribadi
BIOTIKA Jurnal Ilmiah Biologi Vol 5, No 1 (2006): Biotika Juni 2006
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/bjib.v5i1.319

Abstract

POTENSI SERAPAN NITROGEN OLEH GULMA DAN JAGUNG MANIS (Zea mays var. saccharata sturt) PADA SISTEM TOT Desvo Wiesje Rorie
BIOTIKA Jurnal Ilmiah Biologi Vol 3, No 1 (2004): Biotika Juni 2004
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/bjib.v3i1.255

Abstract

Page 9 of 26 | Total Record : 257

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