Garuda - Garba Rujukan Digital

Article Per Year (5 Year)

All

BERITA BIOLOGI

berita_biologi
Website

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

19 20 21 22 23

ANATOMI HELAIAN DAUN MURRAYA SPP. (RUTACEAE) DI JAWA [The Anatomical of Murraya spp. (Rutaceae) Leaflet in Java] Tihurua, Eka Fatmawati; Astuti, Inggit Puji; Rugayah, Rugayah
BERITA BIOLOGI Vol 11, No 3 (2012)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Leaf anatomy of four species of Murraya (Rutaceae) have been examined. Murraya spp. leaf has dorsiventral type. Anticlinal epidermis cell wall present with straight-undulate and square-irregular shaped. Anomocytic stomata distribute only in the lower surface and simple trichome spread in both leaf surfaces except M. crenulata (Turz.) Oliv. which has trichome only in the lower surface. Mesophyll consist of 2 or more layers of palisade tissues in the leaf upper part and sponge below, but M. exotica L. has palisade tissue in both leaf side. Oil gland distribute in the mesophyll. Crystal present as prismatic (cuboid) and drusse type.

ISOLASI DAN SELEKSI JAMUR PENDEGRADASI SENYAWA BENSONITRIL Subowo, YS; Sunarko, Bambang; Gandjar, Indrawati
BERITA BIOLOGI Vol 6, No 4 (2003)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

A study on Isolation and selection of benzonitrile degrading fungi were conducted. The aim of this study was to obtain fungi that high potentially on degrading nitrile compounds. Microbial sources were derivat from industrial wastes. fungi-infecting plantand fungi grown on decayed wood. Eighteen isolates were isolated from those samples. Five isolates were capable to grow on benzonitrile. Isolate-AVI which was identified as Fusarium oxysporum was capable of degrading 0.15% (v/v)Â benzonitrile.

DIFERENSIASI BERBAGAI MACAM EKSPLAN PADA PERBANYAKAN Philodendron goeldii (Araceae) SECARA IN-VITRO Irawati, Irawati
BERITA BIOLOGI Vol 5, No 1 (2000)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Study on the differentiation of several explants by in vitro culture were conducted on Philodendron goeldii for propagationpurposes.Activated charcoal added to the initiating medium did not improve the development of the cultures.In general all type of explants were successfully differentiated into plantlets in all media tested. The most potential explants for propagation of this species are the shoot tip and the stem.Addition of 0.3 ppm NAA to the basal medium with different cytokinins induced roots development on shoot tips,petioles and young leaves cultures.The ability of culture to produce multiple shoots such as in medium with NAA + 2-iP or NAA + BA would give a better opportunity for in-vitro propagation of P. goeldii.

INTERSPECIFIC ASSOCIATION PATTERNS AND EDAPHlC FACTORS INFLUENCES: A CASE STUDY OF Orania regalis Zippelius IN WAIGEO ISLAND, WEST PAPUA [Pola Asosiasi Antarspesies dan Pengaruh Faktor Edafik: Studi Kasus Orania regalis Zippelius di Pulau Waigeo, Papua Barat] Widyatmoko, Didik
BERITA BIOLOGI Vol 9, No 5 (2009)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Tropical plant community ecology is often assumed to be driven largely by stochastic disturbance, regeneration and demographic processes. The influence and importance of physical and biotic components are rarely taken into account. Consequently, scientific findings in this field are very limited. Tropical soils are in fact more diverse than usually is recognized. This study was conducted to test hypotheses about the importance and influence of edaphic parameters and association patterns in determining the abundance and distribution of the Papuasian palm Orania regalis Zippelius and its co-occurrence with other plant species. The results showed that a number of interrelating edaphic factors, in combination, appeared to explain the abundance and occurrence of O. regalis. This palm showed a preference for wet, but well-drained soils, with high magnesium (Mg ) and calcium (Ca *)contents. The three largest colonies occurred in sites where Mg * content was high. On the other hand, high alkaline concentrations corresponded to the absence of the palm. Eight of 14 tropical plant species were positively associated while six species were negatively associated with O. regalis. For five species (Licuala gramnifolia, Tabernaemontana aurantiaca, Intsia bijuga, Vatica rassak,and Palaquium obovatum), the association with O. regalis was strong, as indicated by their Ochiai indices (>0.5).The palms L. gramnifolia and Sommieria leucophylla appeared to have similar ecological preferences and habitat requirements with O.regalis. The palm tended to occupy sites with lower C/N ratios and all known colonies occurred in habitats with average C/N values of less than 10. Based on the r-squared values, exchangeable Mg* appeared to have more influence on plant density and frequency than on basal area and canopy circle area. The exchangeable Ca * and C/N values showed a similar pattern to Mg contents.However, K ., Na ., Al and H contents did not show significant relationships with the palm abundance parameters. These findings suggest that edaphic variables and plant association patterns are important determinants of the abundance and occurrence of tropical plant species.

ISOLASI, IDENTIFIKASI DAN EVALUASI ANTAGONISME TERHADAP Fusarium oxysporum f.sp. cubense (Foc) SECARA IN VITRO DARI JAMUR ENDOFIT TANAMAN PISANG [Isolation, Identification and Evaluation of Antagonism to Fusarium oxysporum f.sp. cubense (Foc) Under in Vitro Conditions from Endophytic Fungi of Musa sp.] Suciatmih, Suciatmih; Hidayat, I; Sulistiyani, TR
BERITA BIOLOGI Vol 13, No 1 (2014)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Isolation of endophytic fungi was done to find alternative microorganisms as antifungal agent against Fusarium oxysporum f.sp. cubense (Foc), causing panama disease (fusarium wilt) on Musa spp. The research objectives were 1) to isolate and identify endophytic fungi colonize cavendish (AAA) and rejang (AA) bananas growing on PT Natural Tropical Fruit (NTF) Plantation in East Lampung; and 2) to evaluate for their antagonistic activity against Foc under in vitro conditions. The results indicated 46 isolates of endophytic fungi that were isolated from leaves, saplings and petioles of cavendish banana; and leaves and petioles of rejang banana. The isolated endophytic fungi belonging to the group of Colletotrichum, Fusarium, Guignardia, Penicillium, Talaromyces and non sporulating endophytic fungi that were classified as unidentified isolate. Fourteen isolates (30.43 %) of those 46 fungi isolates tested, showed varying degree of antagonism to Foc. The best three isolates that have strong antagonistic activities were Talaromyces sp. 27-4 (M), unidentified 23-3/11 (B) and unidentified 26-5/K (L). Fusarium oxysporum 22-3/F (I), Penicillium sp. 20-2/H (J), Talaromyces sp. 27-4 (M) and unidentified 21-1/6 (A) inhibited the growth of Foc by producing both volatile and unvolatile metabolites. The strongest inhibition (53.17 %) by volatile inhibitory subtance was produced by F. oxysporum 22-3/F (I), while the strongest inhibition (65.98 %)by unvolatile inhibitory subtance was produced by Penicillium sp. 20-2/H (J).

ANALISIS DISTRIBUSI SPASIAL MARGA CURCUMA DIJAWA Roemantyo, Roemantyo
BERITA BIOLOGI Vol 5, No 2 (2000)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Based on the distribution data of 13 species of Curcuma found in Java,spatial analyses using land status and land used thematic maps has been earned out.The purpose of this analysis is to detenvine thehabittat that usually Curcuma grows both cultivated or wild.Cluster analysis based on distance Eucledian using Statistical Program for Social Sciences(SPSS) for Window Release 6 software was administered to classify the relation between Curcuma species and their habitat.The result showed that Curcuma domestica; C. aurantiaca, C. aeruginosa, C. zedoaria, C. xanthorhiza and C.viridifolia are wide distributed in Java, but C. mangga, C. heyneana, C. purpuracens, C. soloensis, C. euchroma, C.colorata and C. borg are strickly found in specific areas only. Eventhough C. phaeocaulis, C. sylvatica and C. ochrorhiza has been reported found in Java, that species should be monitor due to limited information of this species in Java.Spatial analyses using ArcView software showed that Curcuma found in the 13 kinds of land status and land used.Curcuma mainly occupies in the habitat that classify as a "daratan" status withlanduse status as resettlement.Beside that Curcuma are also grown in the teak forest areas, but some of them have been changed to secondary forest after the timber harvested proven by landuse thematic map.Those areas are classified as a high-risk habitat due to probability status can be changed easily.Cluster diagram analyses using land status thematic maps, showed that there are some habitat similarities among C. xanthorrhiza and C. zedoaria, and then among C. aeruginosa, C. aurantiaca, C. viridiflora and also among C. borg, C. soloensis, C. mangga, C. heyneana, C. colorata, C. euchroma and C. purpuracens. Cluster diagram analysis using land use thematic showed that maps some similarities habitat also occurred betweenC. aurantiaca and C.aeruginosa, and then between C. zedoaria, C. xanthorhiza and C. viridifolia, and also between C. mangga, C. heyneana,C. purpuracens, C. soloensis, C. euchroma, C. colorata and C. borg.

LETHAL DISSOLVED OXYGEN AND BLOOD PROPERTIES OF GREY MULLETS Mugil cephalus IN SEAWATER AND FRESHWATER [Oksigen Terlarut Letal dan Gambaran Darah Ikan Belanak Mugil cephalus di Air Laut dan Tawar] Prakoso, Vitas Atmadi; Kim, Ki Tae; Min, Byung Hwa; Gustiano, Rudhy; Chang, Young Jin
BERITA BIOLOGI Vol 15, No 1 (2016)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v15i1.2861

Ikan belanak Mugil cephalus adalah salah satu spesies ikan euryhaline dan merupakan ikan ekonomis penting yang terdistribusi secara luas di dunia. Namun, penelitian tentang pengaruh faktor lingkungan terhadap metabolisme ikan ini masih kurang banyak diteliti meskipun hal tersebut penting untuk mengoptimalkan budidaya. Karena itu, penelitian ini dilakukan untuk mempelajari tingkat oksigen terlarut (DO) letal dan gambaran darah ikan belanak pada kondisi pemeliharaan dengan salinitas berbeda. Dua kelompok penelitian dilakukan untuk mengukur kadar DO letal dan gambaran darah ikan belanak pada kondisi pemeliharaan di air laut (LOS) dan air tawar (LOF). Pengamatan dilakukan menggunakan closed rectangular chamber dan sampel darah. Hasil penelitian menunjukkan bahwa kondisi ikan belanak menjadi tidak stabil pada kondisi oksigen terlarut di bawah 2 mg/L (1.3 mg/L pada LOS, 1.6 mg/L pada LOF). Dalam kondisi oksigen terlarut menjadi 1 mg/L, aktivitas ikan menurun dan mengalami kematian pada konsentrasi 0.3 mg/L. Kedua kelompok penelitian yang diamati tidak berbeda nyata (P>0.05). Parameter darah seperti Ht, Hb, osmolalitas, kortisol, dan glukosa dalam percobaan LOS memiliki nilai yang lebih tinggi dibandingkan dengan LOF. Percobaan menunjukkan bahwa indikator respon stress pada ikan belanak semakin meningkat dengan menurunnya kandungan oksigen dalam air. Kadar kortisol berada pada nilai 90.7 ng/ml di LOS dan 56.4 ng/ml di LOF, sedangkan kadar glukosa berada pada nilai 169.0 ng/ml di LOS dan 71.5 ng/ml di LOF. Dari penelitian ini dapat disimpulkan bahwa kadar oksigen terlarut bagi ikan belanak dianjurkan tidak berada di bawah 2 mg/L pada kondisi pemeliharaan di air laut maupun air tawar untuk menghindari kematian pada ikan.

KERUSAKAN DINDING SEL Escherichia coli OLEH MINYAK ATSIRI TEMU KUNCI (Kaempferiapandurata) Miksusanti, Miksusanti; Jennie, Betty Sri Laksmi; Ponco, Bambang; Trimulyadi, Gatot
BERITA BIOLOGI Vol 9, No 1 (2008)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Antibacterial activity of temu kunci (Kaempferiapandurata) essential oil against Escherichia coli Kl.l was analyzed. Activity of antibacterial essential oil was analyzed through its ability to leak the Escherichia coli Kl.l cell wall and altering it.Minimum Inhibitory Concentration (MIC) of temu kunci essential oil is 0.11% (v/v). Further studies were conducted using the concentration of 1 MIC and 2 MIC.Leakage phenomena were monitored with atomic adsorption spectrometry (AAS), and ultraviolet spectrophotometry(UV).Alteration of cell wall was analyzed with scanning electron microscopy (SEM).The optical density values observed by UV spectrophotometer for protein and nucleic acid leakage were 0.3813-0.6573 at 280 nm and 0.2186-0.5603 at 260 nm.The result showed that K. pandurata essential oil could leak the inorganic ion Ca 17-53%, and K* 9-43% from the bacteria and alter the cell wall of the bacteria.

ISOLAT-ISOLAT KHAMIR DARI MINUMAN TRADISIONAL LARU DI NTT [Yeast Diversity Deprived from Laru, a Traditional East Nusa Tenggara Drink] Rahmansyah, M; Kanti, A
BERITA BIOLOGI Vol 4, No 5 (1999)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Sixteen isolates of yeast were collected from Law fa fermented palm sap or syrup which were tapped from palm infbrescence stalk of Borassus flabellifer L). Physiological performances were tested according to Bamett method for assimilation of some sources of carbon, nitrogen and cycloheximide. Based on the percentage of discrepancy, 6 isolates have been identified. The isolates were respected in high analogical affinity and identified as Arxula adeninovoras (93%), Lipomyces tetraspows (100%), Rhodotorula mucilaginosa (97%), Saccharomyces cerevisae (95%), Schwanniomyces occidentalis var. occidentalis (96%) and Pichia anomala (99%). The yeast that usually found in food fermentation was P. anomala, R. mucilaginosa and S. cerevisiae. The others yeast have great opportunity as indigenous ones.

CATATAN KEKAYAAN JENIS GASTROPODA DI PESISIR PULAU LETI, KAWASAN BANDA SELATAN [Note on Species Richness of Gastropoda in Coastal Area of Leti Island, Southern Banda] Islami, Muhammad Masrur
BERITA BIOLOGI Vol 16, No 1 (2017)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Note on species richness of gastropods in coastal area of Leti Island, southern Banda was conducted as a part of Southern Banda Expedition on October 7-16, 2015. Sample collection was carried out by hand picking in Serwaru, Tutukey village, Leti Island, Southwest Maluku. Â A total of 125 individu from 25 species of gastropods was found. The highest number of individu is Clypeomorus moniliferus. Generally, gastropods found in this area were associated with rocky hard substrate. Â Â

Page 21 of 213 | Total Record : 2125

19 20 21 22 23

Filter by Year

1968 2022

Filter By Issues

All Issue Vol 21, No 3 (2022): Berita Biologi Vol 21, No 2 (2022): Berita Biologi Vol 21, No 1 (2022) Vol 21, No 3 (2021): Berita Biologi Vol 20, No 2 (2021): Berita Biologi Vol 20, No 1 (2021) Vol 19, No 3B (2020) Vol 19, No 3A (2020) Vol 19, No 2 (2020) Vol 19, No 1 (2020) Vol 18, No 3 (2019) Vol 18, No 2 (2019) Vol 18, No 1 (2019) Vol 18, No 1 (2019) Vol 17, No 3 (2018) Vol 17, No 3 (2018) Vol 17, No 2 (2018) Vol 17, No 2 (2018) Vol 17, No 1 (2018) Vol 17, No 1 (2018) Vol 16, No 3 (2017) Vol 16, No 3 (2017) Vol 16, No 2 (2017) Vol 16, No 2 (2017) Vol 16, No 1 (2017) Vol 16, No 1 (2017) Vol 15, No 3 (2016) Vol 15, No 3 (2016) Vol 15, No 2 (2016) Vol 15, No 2 (2016) Vol 15, No 1 (2016) Vol 15, No 1 (2016) Vol 14, No 3 (2015) Vol 14, No 3 (2015) Vol 14, No 2 (2015) Vol 14, No 2 (2015) Vol 14, No 1 (2015) Vol 14, No 1 (2015) Vol 13, No 3 (2014) Vol 13, No 3 (2014) Vol 13, No 2 (2014) Vol 13, No 2 (2014) Vol 13, No 1 (2014) Vol 13, No 1 (2014) Vol 12, No 3 (2013) Vol 12, No 3 (2013) Vol 12, No 2 (2013) Vol 12, No 2 (2013) Vol 12, No 1 (2013) Vol 12, No 1 (2013) Vol 11, No 3 (2012) Vol 11, No 3 (2012) Vol 11, No 2 (2012) Vol 11, No 2 (2012) Vol 11, No 1 (2012) Vol 11, No 1 (2012) Vol 10, No 6 (2011) Vol 10, No 6 (2011) Vol 10, No 5 (2011) Vol 10, No 5 (2011) Vol 10, No 4 (2011) Vol 10, No 4 (2011) Vol 10, No 3 (2010) Vol 10, No 3 (2010) Vol 10, No 2 (2010) Vol 10, No 2 (2010) Vol 10, No 1 (2010) Vol 10, No 1 (2010) Vol 9, No 6 (2009) Vol 9, No 6 (2009) Vol 9, No 5 (2009) Vol 9, No 5 (2009) Vol 9, No 4 (2009) Vol 9, No 4 (2009) Vol 9, No 3 (2008) Vol 9, No 3 (2008) Vol 9, No 2 (2008) Vol 9, No 2 (2008) Vol 9, No 1 (2008) Vol 9, No 1 (2008) Vol 8, No 6 (2007) Vol 8, No 6 (2007) Vol 8, No 5 (2007) Vol 8, No 5 (2007) Vol 8, No 4 (2007) Vol 8, No 4(a) (2007) Vol 8, No 4 (2007) Vol 8, No 4(a) (2007) Vol 8, No 3 (2006) Vol 8, No 3 (2006) Vol 8, No 2 (2006) Vol 8, No 2 (2006) Vol 8, No 1 (2006) Vol 8, No 1 (2006) Vol 7, No 6 (2005) Vol 7, No 6 (2005) Vol 7, No 5 (2005) Vol 7, No 5 (2005) Vol 7, No 4 (2005) Vol 7, No 4 (2005) Vol 7, No 1&2 (2004) Vol 7, No 1&2 (2004) Vol 7, No 3 (2004) Vol 7, No 3 (2004) Vol 6, No 6 (2003) Vol 6, No 6 (2003) Vol 6, No 5 (2003) Vol 6, No 5 (2003) Vol 6, No 4 (2003) Vol 6, No 4 (2003) Vol 6, No 3 (2002) Vol 6, No 3 (2002) Vol 6, No 2 (2002) Vol 6, No 2 (2002) Vol 6, No 1 (2002) Vol 6, No 1 (2002) Vol 5, No 6 (2001) Vol 5, No 6 (2001) Vol 5, No 5 (2001) Vol 5, No 5 (2001) Vol 5, No 4 (2001) Vol 5, No 4 (2001) Vol 5, No 3 (2000) Vol 5, No 3 (2000) Vol 5, No 2 (2000) Vol 5, No 2 (2000) Vol 5, No 1 (2000) Vol 5, No 1 (2000) Vol 4, No 5 (1999) Vol 4, No 5 (1999) Vol 4, No 2&3 (1998) Vol 4, No 2&3 (1998) Vol 4, No 4 (1998) Vol 4, No 4 (1998) Vol 4, No 1 (1997) Vol 3, No 9 (1989) Vol 3, No 8 (1988) Vol 3, No 7 (1987): (Supplement) Vol 3, No 7 (1987) Vol 3, No 6 (1986) Vol 3, No 5 (1986) Vol 3, No 4 (1986) Vol 3, No 3 (1985) Vol 3, No 2 (1985) Vol 3, No 1 (1985) Vol 2, No 9&10 (1984) Vol 2, No 9&10 (1984) Vol 2, No 8 (1984): (Supplement) Vol 2, No 8 (1984) Vol 2, No 7 (1983) Vol 2, No 6 (1981) Vol 2, No 5 (1979) Vol 2, No 5 (1979) Vol 2, No 4 (1979) Vol 2, No 3 (1979) Vol 2, No 2 (1977) Vol 2, No 1 (1977) Vol 1, No 4 (1974) Vol 1, No 3 (1971) Vol 1, No 2 (1968) Vol 1, No 1 (1968) More Issue

Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name
-

Contact Email
-

Phone
-

Journal Mail Official
-

Editorial Address
-

Location
Kota adm. jakarta selatan,

Dki jakarta

INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name -

Contact Email -

Phone -

Journal Mail Official -

Editorial Address -

Location Kota adm. jakarta selatan, Dki jakarta INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Contact Name
-

Contact Email
-

Phone
-

Journal Mail Official
-

Editorial Address
-

Location
Kota adm. jakarta selatan,

Dki jakarta

INDONESIA