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Majalah Ilmiah Biologi BIOSFERA: A Scientific Journal
ISSN : 08531629     EISSN : 08531629     DOI : -
Majalah Ilmiah Biologi Biosfera : A Scientific Journal merupakan peer reviewed jurnal yang diterbitkan oleh Fakultas Biologi Universitas Jenderal Soedirman. Media ini mewadahi hasil-hasil penelitian di bidang biologi tropika yang terbit tiga kali setahun (Januari, Mei, September).
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Articles 5 Documents
Search results for , issue " Vol 31, No 2 (2014)" : 5 Documents clear
Keanekaragaman Kultivar Salak Pondoh di Banjarnegara Annisaurrohmah, Annisaurrohmah; Herawati, Wiwik; Widodo, Pudji
Majalah Ilmiah Biologi BIOSFERA: A Scientific Journal Vol 31, No 2 (2014)
Publisher : Fakultas Biologi | Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.mib.2014.31.2.216

Abstract

Snake fruit (Salacca zalacca (Gaertner) Voss) is originated from Indonesia. The aim of this study was to find out the cultivar diversity of salak pondoh in Banjarnegara, and to determine the similarity relatiinshipa between cultivars pondoh in Banjarnegara. The method used was exploratory survey with purposive random sampling. Morphological characteristics observed included 50 characters in the form of stems, leaves, flowers, fruits, seeds, and spines. Samples were taken at 5 districts namely Madukara, Banjarmangu, Sigaluh, Pagentan and Banjarnegara. The result of this research showed that there were six cultivars of Salacca zalacca namely cultivars ‘Pondoh Nglumut’, ‘Linting’, ‘Ketek’, ‘Manggala’, ‘Madu’, and ‘Super’. Whereas in S. zalacca Pondoh Ketek has various number of seeds in the fruit. The most closely related cultivars were ‘Pondoh Nglumut’ and ‘Super’. The most distinct cultivars were S. zalacca ‘Manggala’ and ‘Ketek’.
Karakter dan Potensi Inokulum Bakteri Fosfat dalam Melepaskan Fosfor Tamad, Tamad
Majalah Ilmiah Biologi BIOSFERA: A Scientific Journal Vol 31, No 2 (2014)
Publisher : Fakultas Biologi | Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.mib.2014.31.2.212

Abstract

Soil bacteria group which can release soil P-adsorbed is phosphate bacteria (PB). PB can release soil P-adsorbed through: 1) acidification, 2) chelating 3) ligand exchange 4) mineralization and 5) compete colloid sorption site. PB have a potential to release soil P-adsorbed. This study was aimed to determining the character and PB inoculant potential in soil P-adsorbed release. The results of BLASTn PB showed that  isolate 1 was Pseudomonas trivialis, isolate 5 was Pseudomonas putida and  isolate 9 was Pseudomonas fluorescens. Based on the growth curve on day 5th (the end log. phase) population of Pseudomonas trivialis was 1010 CFU/mL, Pseudomonas putida was 1014 CFU/mL and Pseudomonas fluorescens was 1017 CFU/mL. Storage inoculant PB population decrease 97-84 % and 80-65 % PB lowering capabilities.
Isolasi dan Uji Efektivitas Beberapa Isolat Dekomposer Lokal dalam Mendekomposisi Limbah Tanaman Jagung Djaenuddin, Nurasiah; Faesal, Faesal; Soenartiningsih, Soenartiningsih
Majalah Ilmiah Biologi BIOSFERA: A Scientific Journal Vol 31, No 2 (2014)
Publisher : Fakultas Biologi | Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.mib.2014.31.2.213

Abstract

Soil microorganisms are able to digest and degrade organic material present in the environment in to substances that available for plants to absorb. This research aimed to isolate and examine local bacteria that had the ability to decompose corn stover. Soil samples were taken from various natural habitats in which bacteria grow, including remains of corn planting area, pile of waste corncob and corn stalk, pile of rice husk and straw, and pile of used sorghum stalk. Which were collected from several locations across South Sulawesi. Bacteria was isolated by making soil suspension that being inoculated on to NA and CMC medium, and then incubated for 48 hours at room temperature. Bacterial colonies that grow were then incubated 50o C to obtain bacteria resistant to high temperature and able to produce cellulose. Bacterial isolates that produce cellulose was then examined for the effectiveness in decomposing corn stover waste. Isolates result were able to obtain 119 decomposers isolates with 29 isolates resistant to temperature above 50o C and had ability to produce cellulose. From 29 isolates, among 15 isolates collected from rice straw, 5 isolates from remains of corn planting area and 9 isolates collected from several natural habitats. Almost all isolates had good ability to decompose corn stover waste. From isolates tested in corn cob waste and corn leaves waste, only 16 bacterial isolates were proven to be effective as decomposer.
Efek Antimitosis Biomutagen dari Tanaman Kembang Sungsang (Gloriosa superba L.) pada Pembelahan Sel Ujung Akar Kecambah Cabai Merah Besar (Capsicum annuum L.) Ernawiati, Eti; Wahyuningsih, Sri; Yulianty, Yulianty
Majalah Ilmiah Biologi BIOSFERA: A Scientific Journal Vol 31, No 2 (2014)
Publisher : Fakultas Biologi | Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.mib.2014.31.2.214

Abstract

Flame lily (Gloriosa superba L.)  is one of the plants containing colchicine, often used as antimitotic compound, in the whole organ. This study aims to gain the combination of extract source  and extract concentration of G. superba capable of inhibit mitosis in root tip cells of chili  sprouts.  The plant is extracted  using the extraction and dilution methods to determine the extract concentration of the treatment. The squash method is used to make a  mitosis preparation. The study is arranged in a factorial using Randomized Complete Block Design (RCBD) with 4 replications. The first factor is extract source:   roots, stems, and leaves. The second factor is the extract concentration: 0, 20.40, 60, and 80%.   The observation shows that the extract of leaf can inhibit mitosis more than exctract of bulbs and roots.  All of the concentration treatment from all extract sources tend to result in similar mitotic index, but significantly different from cells that are not given treatment. The combination of the source extract and concentration of the extract result in varied mitotic index, but  it is obvious that the leaf extract with a concentration of 80% gives the most inhibiting mitosis index: 1.298%.
Keanekaragaman dan Pemanfaatan Ubi-Ubian sebagai Alternatif Tanaman Pangan di Kecamatan Bantarkawung Kabupaten Brebes Hasanah, Uswatun; Hadi, Edy Purwono; Hidayah, Hexa Apriliana
Majalah Ilmiah Biologi BIOSFERA: A Scientific Journal Vol 31, No 2 (2014)
Publisher : Fakultas Biologi | Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.mib.2014.31.2.215

Abstract

A research on the diversity and use of tuber as alternative food crops in Bantarkawung, Brebes has been conducted. This research was aimed to find out the kinds of tuber used as alternative food crops.  The method used was survey with a purposive random sampling applied to eighteen villages, The data were obtained by interviewing using questionnaire for each owner. They were analyzed descriptively for tuber type.  The result of this study showed that there are nine species of tuber plant used as alternative food crops: Manihot esculenta, Ipomoea batatas., Dioscorea alata, D. hispida, D. esculenta, Canna edulis, Colocasia esculenta, Amorphophallus campanulatus, Maranta arundinacea, and 7 cultivars from 3 species of plant that were Manihot esculenta.’ Darmo’, M. esculenta ‘Mentega’,  M. Esculenta ‘Valenca’, Ipomoea batatas. ‘Selat’, I. batatas ‘Sriwil’, Colocasia esculenta ‘Udang’ and C. esculenta ‘Pari’.  M. esculenta were more often found while D.  hispida was the less frequently used.   People in Bantarkawung used tuber as the alternative food crops for self consumption by boiling, frying, roasting and making them as meal.  The meal was processed into various processed foods, part of them were sold.

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