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Biota: Jurnal Ilmiah Ilmu-Ilmu Hayati

biota
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Published by Universitas Atma Jaya Yogyakarta

ISSN : 25273221 EISSN : 2527323X DOI : doi.org/10.24002/biota

Core Subject : Science, Agriculture,

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology

Biota: Jurnal Ilmiah Ilmu-Ilmu Hayati merupakan jurnal ilmiah yang memuat hasil-hasil penelitian, kajian-kajian pustaka dan berita-berita terbaru tentang ilmu dan teknologi kehayatian (biologi, bioteknologi dan bidang ilmu yang terkait). Biota terbit pertama kali bulan Juli 1995 dengan ISSN 0853-8670. Biota terbit tiga nomor dalam satu tahun (Februari, Juni, dan Oktober).

Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Pertanian dan Biologi (Lain-Lain)

Articles 20 Documents

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Search results for , issue "Vol 9, No 3 (2004): October 2004" : 20 Documents clear

Pengaruh Kekurangan Air dan Temperatur Tinggi Selama Periode Pengisian Biji pada Hasil Gandum Pringgohandoko, Budyastuti
Biota : Jurnal Ilmiah Ilmu-Ilmu Hayati Vol 9, No 3 (2004): October 2004
Publisher : Universitas Atma Jaya Yogyakarta

Kenyataan menunjukkan bahwa kekurangan air di daerah-daerah semi-arid di dunia dan temperatur tinggi yang terjadi selama periode pengisian biji adalah merupakan faktor lingkungan yang utama dalam mempengaruhi penurunan hasil biji gandum (Triticum aestivum L.) Pengaruh kekurangan air pada komponen hasil telah banyak diteliti, namun penelitian tentang pengaruh kombinasi kekurangan air dan temperatur tinggi pada biji gandum masih sedikit dan belum banyak dipahami. Tujuan utama dari penelitian ini adalah untuk mengetahui pengaruh kombinasi antara kekurangan air dan temperatur tinggi selama periode pengisian biji pada hasil gandum cultivar Janz.Dari hasil penelitian dapat disimpulkan bahwa kekurangan air dan kombinasi kekurangan air dengan temperatur tinggi menyebabkan perubahan pada pertumbuhan dan akumulasi protein biji yang selanjutnya akan berpengaruh pada penurunan hasil secara nyata. Penurunan laju dan durasi pengisian biji (setelah 30 hari setelah pembungaan pertama) menyebabkan makin cepatnya pemasakan biji.

Struktur Anatomi Daun Artemisia cina Berg. Ex Poljakov Hasil Kultur Jaringan Ermayanti, Tri Muji; Juliarni, Juliarni; Andry, Yuli
Biota : Jurnal Ilmiah Ilmu-Ilmu Hayati Vol 9, No 3 (2004): October 2004
Publisher : Universitas Atma Jaya Yogyakarta

This study was conducted to investigate the anatomical structure of leaves of Artemisia cina Berg. ex Poljakov due to variances in leaf morphology during grown in vitro. Shaking of culture, position of stem nodes used as explants and concentration of BAP (Benzyl Amino Purin) added to the culture medium were the factors investigated in this study. There was variation in leaves morphology of culture, however this variation did not occur after aclimatization and plant grown in the greenhouse. BAP decreased the level of chlorophyll content of leaves. In general, anatomical characters of leaves were not influenced by shaking, nodes position of stem and level of BAP.

Catatan Baru Persebaran Pinang Gajah (Nenga gajah J. Dransf.) (Short Communication) Witono, Joko R.; Sutrisno, Sutrisno; Astuti, Inggit Puji
Biota : Jurnal Ilmiah Ilmu-Ilmu Hayati Vol 9, No 3 (2004): October 2004
Publisher : Universitas Atma Jaya Yogyakarta

Sumatra merupakan salah satu pulau besar di kawasan Malesia Barat yang memiliki keanekaragaman palem yang tinggi. Menurut Uhl & Dransfield (1987), di Sumatra terdapat 26 marga palem, salah satu diantaranya adalah Nenga. Nenga terdiri atas 5 jenis, yaitu Nenga gajah, N. pumila, N. banaensis, N. macrocarpa, dan N. grandiflora (Fernando, 1983). Kelima jenis tersebut tumbuh pada daerah hutan hujan tropika pada ketinggian antara 0-1.400 m dpl. Daerah persebarannya di Asia Tenggara mulai Thailand, Semenanjung Malaya, Sumatra, Jawa, dan Kalimantan. Satu-satunya jenis Nenga yang dinyatakan sebagai jenis endemik, sekaligus langka adalah Nenga gajah (WCMC, 1996) karena populasinya yang sangat rendah dan terancam oleh aktivitas perladangan liar dan perluasan kebun kopi rakyat.

Collembola Lantai Hutan Di Kawasan Hulu Sungai Tabalong Kalimantan Selatan Rahmadi, Cahyo; Suhardjono, Yayuk R.; Andayani, Iwing
Biota : Jurnal Ilmiah Ilmu-Ilmu Hayati Vol 9, No 3 (2004): October 2004
Publisher : Universitas Atma Jaya Yogyakarta

Collembola in Kalimantan Island is poorly studied even this island has high value of biodiversity especially Collembola. Taxonomically, Collembola in Borneo was studied well by Yosii in Sabah (Malaysia) in the other side, very few report about ecology of Collembola in Kalimantan. This research was aimed to study the ecology of Collembola in five different forest types i.e. 3 natural forest and two Industrial tree plantation (HTI). This study was done in forest on Upper Tabalong River at June 2002. Collembola was collected by using a pitfall traps and soil-litter samples. Each forest type had twenty pitfall traps were set along two transects with 100 in length and operated for four days. Five soil-litter samples were collected in each forest type and modification of Berlese funnel was used to sort out Collembola from soil and litter for two weeks. The results of study show that dominant families in study sites are Paronellidae, Dicyrtomidae and Entomobryidae. These families are surface dwelling Collembola that live on soil surface among the litter. Five different forest types have different Collembolan composition due to different microhabitat, which had different vegetation and diversity. Number of species and individual of Collembola was showed that the highest of Collembola both species and individual was in natural forest (Km 57/Arboretum) and the lowest one was in Industrial tree plantation (HTI 1/Acacia mangium).The richness of collembola was affected by diversity of vegetation in each site and condition of forest floor.

Kajian Awal Pemanenan Siput Laut (Gastropoda) di Pantai Krakal, Yogyakarta: I. Volume Pemanenan Zahida, Felicia; Sinulingga, Mastok B.
Biota : Jurnal Ilmiah Ilmu-Ilmu Hayati Vol 9, No 3 (2004): October 2004
Publisher : Universitas Atma Jaya Yogyakarta

A preliminary study on marine snails harvest (Gastropods) has been done in Krakal beach, Yogyakarta, during October to December 2003. Krakal beach has become an underpressure habitat since tourism industry occurred all over Indonesia. Marine snails have been harvested for over two decade but there is no study regarding the effect of this activity. This study aims to elucidate the number of species harvested, the number of each species collected, juvenil and adult, the dominant species, and hypothesize the exploitation status. Fourty species were found, 32 of these population harvested were dominated by the young. Harvest volume was about 3146 per month. These results indicate an overexploitation status.

Karakterisasi Î±-Amilase Bacillus firmus KH.9.4 Alkalotoleran dari Limbah Cair Tapioka Rachmania, Nisa; Iswati, Ruma; Imas, Tedja
Biota : Jurnal Ilmiah Ilmu-Ilmu Hayati Vol 9, No 3 (2004): October 2004
Publisher : Universitas Atma Jaya Yogyakarta

Alkalotolerant bacteria identified as Bacillus firmus KH.9.4 was isolated from tapioca liquid waste from Kedung Halang, Bogor. The isolate showed optimum a-amylase activity after 15 hours of cultivation on liquid media. Optimum enzyme activity occurred at pH 6.0 and temperature 800C. Upon heat treatment at pH 6.0 and 800C the enzyme was still 100% active after 6 hours incubation without substrate. The enzyme activity was enhanced by supplement 10 mM MgSO4.7H2O. The presence of 1, 5, and 10 mM ethylenediaminetetraacetic acid demonstrated the inhibitory effect to this enzyme. Zymogram analysis revealed one translucent zone corresponding to soluble starch activities after 60 minutes of incubation at 400C in the 0.05 M phoshate buffer pH 7.0. Whereas SDS-PAGE analysis showed that there are 5 bands of proteins.

Karakterisasi Sifat-Sifat Fisik dan Mekanik Edible Film Pati Ganyong (Canna edulis Kerr.) Wijoyo, Arif; Pranata, F. Sinung; Atmodjo, P. Kianto
Biota : Jurnal Ilmiah Ilmu-Ilmu Hayati Vol 9, No 3 (2004): October 2004
Publisher : Universitas Atma Jaya Yogyakarta

This research was carried out in order to reveal ganyong starchâ€™s potential as a major ingredient of edible film, to understand the optimum concentration of ganyong starch and palmitic acid in the making process of edible film and to study their physical and chemical characteristics. The research has two stages, which were the starch preparation, and edible film preparation by using various concentrations of ganyong starch (1, 2, 3, and 4 % w/v) and palmitic acid (1, 2, 3, and 4% w/w). First research stage revealed that ganyong starch has a potential as a major ingredient of edible film because of its high amylose content (32.53% on dry basis). The next stage of the research showed that the optimum ganyong starch concentration of edible film was 2% (w/v). This concentration gives the WVTR (Water Vapor Transmission Rate) measurement of 11.86 (g. mm/m2. hour), film elongation of 2.26%, tensile strength of 3.29 Kpa, and film thickness of 0.0754 mm. The optimum concentration of palmitic acid was 4% (w/v). This results in the WVTR (Water Vapor Transmission Rate) measurement of 7.99 (g. mm/m2. hour), film elongation of 1.24%, tensile strength of 3.58 Kpa, and film thickness of 0.087 mm.

Profil Imunohistokimia Antioksidan Copper, Zinc-Superoxide Dismutase (Cu, Zn, -SOD) pada Ginjal Tikus Perinatal dan Neonatal Wresdiyati, Tutik; Adnyane, I Ketut Mudite; Prabandari, Silvia Arin; Sofiawati, Sofiawati
Biota : Jurnal Ilmiah Ilmu-Ilmu Hayati Vol 9, No 3 (2004): October 2004
Publisher : Universitas Atma Jaya Yogyakarta

The aim of the research was to observe the profile of intracellular antioxidant, especially copper, zinc-superoxide dismutase (Cu, Zn-SOD) in the kidney of perinatal and postnatal rats immunohistochemically. A total of twuelve Wistar rats were used for this research and they were divided into four groups that are 18 days (Fe18) and 20 days old fetus (Fe20), one day (N1) and three days neonatus (N3). There are three rats in each groups. Kidney from each group were taken and processed for routin paraffin embedding methods. The tissues sections were observed with Hematoxylin-eosin (HE) and immunohistochemical technique for Cu, Zn-SOD. Cu,Zn-SOD in the kidney were observed qualitatively in medulla, glomerulus dan cytoplasm of tubuli renalis proximalis and tubuli renalis distails, as well as quantitatively in the nucleus of tubuli renalis cells. The results showed that Cu, Zn-SOD increased in the kidney of perinatal rats, 20 days old fetus (Fe20), then it decreased in the tissues of the one days neonatus (N1), then were increased again in the kidney of three days neonatus (N3) group rats.

HUBUNGAN TEKSTUR SEDIMEN DENGAN KEMELIMPAHAN LARVA POLYCENTROPODIDAE (TRICHOPTERA) DI WADUK SERMO, KULONPROGO, YOGYAKARTA Jati, Wibowo Nugroho
Biota : Jurnal Ilmiah Ilmu-Ilmu Hayati Vol 9, No 3 (2004): October 2004
Publisher : Universitas Atma Jaya Yogyakarta

A study on sediment texture to the abundance of Polycentropodidae?s larvae has been done in Sermo Water Reservoir, Kulonprogo, Yogyakarta. Samples have been taken in 3 rivers i.e. Ngrancah, Tegalrejo and Sidowayah. Four different depth were assessed i.e. 0 ? 5 m, 5 ? 10 m, 10 ? 15m, and 15 ? 20 m. Result showed that the larvae?s abaundance was hishest in Ngrancah river on depth of 0 ? 5 m with 53 ind/m2 and lowest on Tegalrejo river on depth of 15 ? 20 m with 3 ind/m2. The larvae?s abundance in every depth was characterized by sand texture and its depth.

Etika Lingkungan: Saatnya Menjadi Bacaan Wajib bagi Penyelenggara Negara (Kajian Buku) Zahida, Felicia
Biota : Jurnal Ilmiah Ilmu-Ilmu Hayati Vol 9, No 3 (2004): October 2004
Publisher : Universitas Atma Jaya Yogyakarta

Mungkin terlalu idealis harapan saya agar penyelenggara negara bisa menerapkan anjuran-anjuran yang dituliskan dalam buku ini. Namun seperti banyak harapan lain yang digantungkan pada pemerintahan baru ini, tidak berlebihan kiranya bila setidaknya departemen yang berkepentingan dan yang berkaitan (semua pihak) memiliki pengetahuan dasar yang kuat sebagai landasan fikir bagi pembuatan keputusan strategis yang dibuatnya bagi keberlanjutan negara ini. Dengan kata lain sudah saatnya negara ini mengubah pendekatan pembangunan yang direncanakan. Alangkah bahagianya bila Indonesia memiliki pemimpin-pemimpin yang mau belajar.

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Contact Name
Brigitta Laksmi Paramita

Contact Email
brigitta.laksmi@uajy.ac.id

Phone
+6282329549978

Journal Mail Official
journal.biota@gmail.com

Editorial Address
Fakultas Teknobiologi, Universitas Atma Jaya Yogyakarta, Jalan Babarsari No. 44, Sleman, Yogyakarta 55281, Indonesia

Location
Kota yogyakarta,

Daerah istimewa yogyakarta

INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name Brigitta Laksmi Paramita

Contact Email brigitta.laksmi@uajy.ac.id

Phone +6282329549978

Journal Mail Official journal.biota@gmail.com

Editorial Address Fakultas Teknobiologi, Universitas Atma Jaya Yogyakarta, Jalan Babarsari No. 44, Sleman, Yogyakarta 55281, Indonesia

Location Kota yogyakarta, Daerah istimewa yogyakarta INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Contact Name
Brigitta Laksmi Paramita

Contact Email
brigitta.laksmi@uajy.ac.id

Phone
+6282329549978

Journal Mail Official
journal.biota@gmail.com

Editorial Address
Fakultas Teknobiologi, Universitas Atma Jaya Yogyakarta, Jalan Babarsari No. 44, Sleman, Yogyakarta 55281, Indonesia

Location
Kota yogyakarta,

Daerah istimewa yogyakarta

INDONESIA