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INDONESIA
BERITA BIOLOGI
Published by Lembaga Ilmu Pengetahuan Indonesia
ISSN : -     EISSN : -     DOI : -
Core Subject : Science, Agriculture,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology
Arjuna Subject : -
Articles 2,125 Documents
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EFEKTIVITAS MULTIVITAMIN DAN MENIRAN (Phyllanthus neruri L.) DALAM MENURUNKAN STRES PADA DOMBA SELAMA TRANSPORTASI Aryani S Satyaningtijas; Andriyanto Andriyanto; Armando Ramadhoni; Yulia Suci; Fitriana Dewi; Abadi Sutisna
BERITA BIOLOGI Vol 10, No 3 (2010)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v10i3.755

Abstract

Sheep is one of achievable animal protein sources. Therefore, they need to be transported to/in different places to fulfill the demand of mutton. This research was conducted to know the impact of transportation on stress as presented by leucocyte differentiation (N:L ratio). Blood were taken from sheep without stress transportation as a control for 12 hours.In this research, 12 sheep were divided into 3 groups: KP (control with stress),PA (stress with combination multivitamin and meniran - Phyllanthus niruri L.), PB (stress with combination multivitamin).Blood samples were taken at 0 hour (pre-transportation), 4h, 8h, 12h (during transportation) and 24h, 48h, 72h (post-transportation) to observe leucocyte differentiation. The results showed that ratio N:L (as stress indicator) were higher at all time periods during transportation and after the transportation. Sheep as a control group had reached the peak of ratio N:L at 0 h, meanwhile sheep with combination of multivitamin and meniran at 12 h and sheep with multivitamin only at 8. It means that the sheep with combination of multivitamin and meniran treatment was more effective to response the transportation stress.
FLOWERING PHENOLOGY AND FLORAL BEHAVIOR OF Scutellaria discolor Colebr. AND S. slametensis Sudarmono & B.J. Conn (Lamiaceae) [Fenologi dan Perilaku Pembungaan pada Scutellaria discolor Colebr. dan 5. Slametensis Sudarmono & B.J. Conn (Lamiaceae)] Sudarmono Sudarmono
BERITA BIOLOGI Vol 10, No 1 (2010)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v10i1.2057

Abstract

The flowering phenology and floral behavior of Scutellaria discolor and S. slametensis were investigated. S. discolor is distributed over a wider range of habitats but S. slametensis is distributed over a restricted area on Mt. Slamet. Observations of flowering phenology and floral behavior were almost the same and pollination of cleistogamous flowers did not occur in both species.Based on our observations on floral and pollinator behavior, we consider both S. discolor and S.slametensis to have chasmo- and cleistogamous flowers.
KANKER DI JAWA BARAT DJOKO ISKANDAR
BERITA BIOLOGI Vol 2, No 1 (1977)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v2i1.1387

Abstract

Kanker merupakan penyakit yang paling ditakuti.Hal ini disebabkan karena belum ada obat yang bisa menyembuhkannya.Tidak adanya gejala-gejala tertentu pada stadium permulaan menyebabkan penderitanya datang setelah penyakitnya sukar diobati.Di mana-mana jumlah penderita kankermeningkat.Apakah ada hubungan antara kemajuan teknologi dengan digunakannya bermacam-macam senyawa kimia baru ke dalam alam lingkungan dengan meningkatnya jumlah penderita, belumlah dapat dipastikan.Meskipun jumlah penderita kanker terus meningkat, tetapi sampai berapa jauh perubahanini, belumlah dapat diketahui dengan pasti. Hal ini disebabkan oleh kurangnya fasilitas kesehatan, belum adanya keharusan melakukan bedah jenazah dan juga karena tidak adanya peraturan untuk melaporkan adanya penderita ini.Data yang dapat diperoleh hanyalah data relatif hasil operasi dan biopsi. Dari data inilah dapat diperkirakan macam tumor, umur dan jenis kelamin penderita, dan ini umumnya dipakai untuk dapat menduga dan menggambarkan keadaan kanker di suatu daerah secara garis besarnya.
THE STATUS OF Trichosanthes anguina L. (CUCURBITACEAE) ) [Status Trichosanthes anguina L. (Cucurbitaceae)] Rugayah Rugayah
BERITA BIOLOGI Vol 7, No 3 (2004)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v7i3.1066

Abstract

Perbedaan pendapat tentang status kedudukan taksonomi Trichosanthes anguina sebagai jenis yang berbeda dengan T. cucumerina,maupun sebagai anak jenis T. cucumerina subsp. anguina atau varietas T. cucumerina var. anguina memerlukan data pendukung.Anatomi daun dengan sayatan paradermal menunjukkan bahwa keduanya mempunyai bentuk stomata dan sel epidermis yang sama,tetapi berbeda hanya pada ukurannya. Stomata Trichosanthes anguina berukuran 15-17.5 x 10-12.5 urn dan sel epidermis 22.5-31.25 x 12.5-20 m, sedangkan Trichosanthes cucumerina mempunyai stomata 10-12.5 x 8.75-12.5 um dan epidermis sel 15-25 x 10-15 um. Data tersebut mendukung dalam menetapkan T.anguina sebagai T. cucumerina var.anguina.
BIOLEACHING UNTUK MENINGKATKAN PRODUKTIVITAS LAHAN SULFAT MASAM AKTUAL UNTUK TANAMAN PADI Eni Maftu’ah; Ani Susilawati
BERITA BIOLOGI Vol 17, No 3 (2018)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v17i3.2922

Abstract

Technology of microbial utilization to accelerate the oxidation of pyrite followed by leaching (bioleaching) has the potential to resolve problems in land management of actual acid sulphate soil. The research aims to obtain a bioleaching technology package that can improve the productivity of the actual acid sulfate soil. The experiment was conducted on tidal swamp land that has soil type of actual acid sulfate at Wana Raya sub-district, district Batola, South Kalimantan, in July - November, 2014. The study was designed by using strip plot with three replications. The treatment consisted of two factors, namely application of an oxidizing microbial pyrite and leaching amount (intensity). The main plot consisted of (P0) without leacing (naturally), (P1) six times leaching , (P2) eight times leaching, and (P3) 12 times leaching. Subplot consisted of (M0) without oxidizing microbial pyrite, (M1) with oxidizing microbial plant used in this study is Inpara 3 of rice variety. Observations were made on soil pH, oxidizing bacteria pyrite, growth of rice plants (plant height and number of tillers) and rice yield. The results showed that the main problem of actual acid sulfate land studied is a high soil acidity (pH of 3.44). Influ-ence of leaching was greater than microbial application on crop yields. Application of the pyrite oxidizing bacterial and leaching eight times gave the best influence on the growth and yield of rice plants.
PERBANYAKAN Heritiera javanica (Blume) Koesterm. SEBAGAI JENIS PENGHASIL KAYU PADA BERBAGAI INTENSITAS NAUNGAN DAN MEDIA PERTUMBUHAN Sahromi Sahromi; R. Subekti Purwantoro; Hartutiningsih M. Siregar
BERITA BIOLOGI Vol 14, No 3 (2015)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v14i3.1823

Abstract

Heritiera javanica is a timber tree species and their natural regeneration is scanty, thus propagation of this species is urgently required. This research was aimed to identify the effect of shade intensity and growth media on the survival rate and growth of seedlings. Experi- mental design used was completely randomized with two factors, namely the shade intensity and the media that consisted of several cate- gories. Parameters measured were survival rate and seedlings growth; height, number of leaves, and number of roots. Survival rate was analyzed using descriptive statistics. Seedlings growth (height, number of leaves, and number of roots) were estimated by using analysis of variance. Results showed that treatments using categories of several media categories that were placed in the shade of 25%, 50%, and 85% had a high survival rate. In addition, seedlings that were placed in 50% shade grew better and optimally. Media of TK (soil + compost), TS (soil + chaff), and TSPk (soil + manure + chaff) that were placed on the 50% shade showed the best result to height of seedlings growth. Reintroduction needs to be done for the enrichment of H. javanica populations in nature.
ISOLASI, SELEKSI DAN OPTTMASI PRODUKSI PROTEASE DARIBEBERAPAISOLAT BAKTERI Elidar Naiola; Nunuk Widhyastuti
BERITA BIOLOGI Vol 6, No 3 (2002)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v6i3.1219

Abstract

Thirty-seven out of sixty-one bacterial isolates from various sources of samples were screened for protease production. The isolate of ISO PL3 could produce the highest enzyme activity, and it was used as a standard bacterial strain in this observation. For any reason,we implemented ISO PL2 to study the optimum condition for producing bacterial protease. Result shows that the maximum protease activity was obtained in a medium containing 100 gram of rice brand in a liter tofu liquid waste. The optimum for incubation was 4- 6 days (agitation of 130 rpm at room temperature) and pH 5.0 - 6.0. After cultivating on this liquid medium, the maximum protease activity of the 2 ISO PL3 was 113,52 x 10' U/ml. From the studies on morphological and physiological characterization, it was indicated that ISO PL3 resemble with the species Bacillus macerans.
EFIKASI LIMBAH SAGU SEBAGAI SUBSTRAT KAYA NUTRISI UNTUK MIKROALGA ISOLAT LIPI11-2-AL002 Dwi Susilaningsih; Sari Lestari; Kusnadi Kusnadi; Topik Hidayat; Hani Susanti
BERITA BIOLOGI Vol 13, No 3 (2014)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v13i3.674

Abstract

Microalgae are photosynthetic microorganisms that have potential to produce some useful chemical substances such as carbohydrates, proteins, and lipids. Microalgae are also known exhibited ability as a bioremediation agent. This report is emphasized on analyzing the growth rate and nutritional content of microalgae including carbohydrate, protein and lipid from selected isolates LIPI11-2-AL002 that treated with sago waste. Microalgae were cultivated into hydrolysed sago “ampas” at the concentration of 0,50, 500,5000 ppm, and medium AF-6 (as control culture) respectively.Therefore selected microalgae isolate was cultivated in series of cultivation volume start from 100 mL until 5 Liter media gradually. Observed parameters were covered cell viability (growth) and proximate content of biomass including carbohydrate,lipid and protein content. The results showed that the carbohydrate and protein content in the algal biomass was increase along the addition of series sago “-ampas” concentration.The highest concentration of addition the sago ampas is 5000 ppm which is limit for the algal survival. In the highest treatment of sago waste the alga l proximate contents were 261.09 ppm of carbohydrate, 5.12 ppm of protein and 3.61% per of lipid dry weight respectively. In addition, the toxicity effect of fermentation product was not appeared in a toxicity test using gold fish komet(Carassius auratus).
SISTEM PENYERBUKAN ALTERNATIF Talinum triangulare Willd.: EFEK PERLAKUAN PENYERBUKAN PAD A AKTIFITAS BUNGA DAN PEMBENTUKAN BUI Erlin Rachman
BERITA BIOLOGI Vol 9, No 2 (2008)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v9i2.2021

Abstract

Eight pollination treatments were executed on Talinum triangulare Willd. to observe alternative pollination systems and its effect on some flower activities and seed setting. The treatments can be grouped to autogamy and allogamy or geitonogamy.Flowers simultaneously were treated by the eight treatments day by day for two weeks in a month with three replications.Parameters observed were fruit set, anthesis duration, seed number per capsule and presence of stigmatic curvature. The result showed that the plant species was evidently flexible in pollination systems but the plant was outcrossing species with highest seed number (58.73 ± 5.95) per capsule and did not show stigmatic lobe curvature. The second and the third highest seed number per capsule were given by natural pollination with or without anther removal and with or without artificial polination (50.5 ± 2,87 and 49.0 ± 1) and this treatments also did not showed stigmatic lobe curvature. Articial pollination with or without flower bagging, withor without anther removal and with or without natural pollination generally gave lower seed number per capsule 40.67 ± 5.69,32.67 ± 10.95, 43.67 ± 9.5) except spontan autogamy(49.29 ± 10.14) and some of this treatments showed sigmatic lobe curvature.Stigmatic lobe curvature, therefore, was occured when no pollen occupation on it until prior to naturally flower reclose. Flower would be abscised when no artificial or natural pollination was happened but its stigma was curved before shed. Primary pollination mechanism in the plant was cross polllination (allogamy) but the plant is enough flexible in pollination systems. Autogamy especially spontan autogamy seem to be alternative pollination mechanism when no natural polinator visit.
STRUKTUR POPULASI DAN MASA REPRODUKSI UDANG REGANG DAISY WOWOR
BERITA BIOLOGI Vol 3, No 3 (1985)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v3i3.1355

Abstract

DAISY WOWOR. 1985. Population structure and spawning period of Udang Regang (Macrobrachium sintangense). BeritaBiologi 3(3): 116- 120. Population structure and spawning period of Macrobrachium sintangense was observed in a coast of a small artificial lake, Situ Ciletuh, Ci gombong, West Java, from December 1981 to August 1982. Examination of the class-size frequency indicated the growth rate of body length of the population, and its spawning periods.The mean growth rate of carapace was 3.44 mm per month.Sex ratio was 1:1, significant at the 95% level. The number of the larger males is greater than the females, which indicate the phenomenon of sexual dimorphism.This is due to the differences of growth and the maximum body size attained by the males and females. It was observed that M. sintangense spawns throughout the year, maximum spawning activity occurs between March and June.

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