Garuda - Garba Rujukan Digital

p-Index From 2021 - 2026

2.753

P-Index

This Author published in this journals

All Journal HAYATI Journal of Biosciences MEDIA PETERNAKAN - Journal of Animal Science and Technology Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Jurnal Ilmu Pertanian Indonesia Jurnal Fitopatologi Indonesia Jurnal Akuakultur Indonesia Jurnal Pengolahan Hasil Perikanan Indonesia Jurnal Ilmu dan Teknologi Kelautan Tropis Jurnal Akuatika Microbiology Indonesia BIOTROPIA - The Southeast Asian Journal of Tropical Biology Biota: Jurnal Ilmiah Ilmu-Ilmu Hayati Biogenesis: Jurnal Ilmiah Biologi Jurnal AgroBiogen Current Biochemistry Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Jurnal Sumberdaya Hayati Elkawnie Journal of Tropical Biodiversity and Biotechnology JURNAL BIOLOGI INDONESIA Jurnal Biodjati Omni-Akuatika Jurnal Penelitian Pendidikan IPA (JPPIPA) Jurnal Biologi Tropis ANNALES BOGORIENSES LIMNOTEK - Perairan Darat Tropis di Indonesia Biosaintifika: Journal of Biology & Biology Education Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Jurnal Riset Akuakultur Menara Perkebunan Jurnal Mangifera Edu Grouper: Jurnal Ilmiah Perikanan Konservasi Hayati Makara Journal of Science Jurnal Ilmu Kehutanan Jurnal Ilmu Kehutanan Annales Bogorienses

Iman Rusmana

Departmen Biologi, Fakultas Matematika Dan Ilmu Pengetahuan Alam, Institut Pertanian Bogor, Kampus IPB Darmaga, Bogor 16680, Indonesia

Author-ID : 286105

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Engineering Environmental Science Immunology & microbiology Library & Information Science Materials Science & Nanotechnology Medicine & Pharmacology Physics Veterinary

Published : 82 Documents Claim Missing Document

Claim Missing Document

Articles

2 3 4 5 6

Pengelolaan ekosistem mangrove untuk ruang terbuka hijau sebagai mitigasi gas rumah kaca di kawasan Sungai Tallo Kota Makassar Rahman Rahman; Hefni Effendi; Iman Rusmana; Fredinan Yulianda; Yusli Wardiatno
Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Vol. 10 No. 2 (2020): Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (JPSL)
Publisher : Graduate School Bogor Agricultural University (SPs IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jpsl.10.2.320-328

One of the ecological functions of mangroves ecosystem is to store carbon. Yet, on the other hand it also has the potential to cause greenhouse gas emissions through litter degradation even though its value is lower compared to the absorption value. Based on these two facts, mangrove management as a Green Open Space in the Tallo river area of Makassar City needs to consider involving the participation of the community and the government as stakeholders. The research was conducted by desk work, literature study and respondent interviews regarding perceptions and participation in mangrove management. The results showed that the total uptake of mangrove carbon in the Tallo river in Makassar city was 351.02 tons CO2/ha, oxygen supply 255.29 O2-equivalent/ha, and the potential for global warming was 252.41 mg/ m2/hour consisting of 194, 33 mg/m2/hour of CO2 gas, 15.76 mg/m2/hour of CH4 gas, and 42.33 mg/m2/hour of N2O gas. The results of community perception and participation analysis show that around 89% of the community strongly agreed and supported the government in the effort to manage mangroves as a green open space. Based on this, the ecosystem in the Tallo river is very suitable to be managed for green open space as fresh air supplier and CO2 adsorber as well as a noise reduction from vehicle or industrial engines in Makassar city.

Formulasi bioinsektisida Bacillus thuringiensis isolat indigenos untuk pengendalian Hyposidra talaca pada tanaman teh (Formulation of indigenous isolate of Bacillus thuringiensis bioinsecticide to control Hyposidra talaca on tea) Happy WIDIASTUTI; TRI - PANJI; Ciptadi Achmad YUSUP; Iman RUSMANA; Tri Eko WAHYONO
E-Journal Menara Perkebunan Vol 87, No 1 (2019): April, 2019
Publisher : INDONESIAN RESEARCH INSTITUTE FOR BIOTECHNOLOGY AND BIOINDUSTRY

A study has been conducted to develop indigenousBacillusthuringiensisbioinsecticide. Preliminary study has been conducted to explore B. thuringiensisfrom sample of soil, leaf, and infected larvae from selected tea area as well as another area such as cocoa, and acasia. The result showed that based on the colony morphology, it was found 10 isolateswith the characteristics of B. thuringiensis colony. Assessed of the ability to formed crystal using phase contrast microscope and staining revealed that 4 isolates as crystal protein forming isolates. The four isolates used as active coumpound of bioinsecticide. The best formula based on the viability of bacteria was the one withwhite clay as a carrier. While the best liquid formula based on the similar characteristic was using maltosa as osmoprotectant. Theassessment ofthetoxisity B. thuringiensistowards Hyposidra talacalarvae showed that B. thuringiensiscould control H. talacalarvaeup to 37.5%. However, the toxicity need longer periode compared to that commercial B. thuringiensisbioinsecticide. [Keywords:Bt insecticide, cypermethrine, integrated pest management, Tea looper].AbstrakPenelitian telah dilakukan untuk mengembangkan bioinsektisida berbahan aktif B. thuringiensisdari isolat asli Indonesia. Eksplorasi B. thuringiensisdari contoh berupa tanah, daun, dan ulat dari kebun teh telah dilakukan demikian pula dari habitat lain seperti kebun kakao dan akasia. Berdasarkan morfologi koloni diperoleh 10 isolat yang menunjukkan ciri-ciri koloni B. thuringiensis. Selanjutnyaisolat yang diperoleh diuji kemampuan pembentukan kristal protein dengan pewarnaan dan pengamatan mikroskop phase kontras dan menghasilkan 4 isolat yang mampu membentuk kristal protein. Selanjutnya keempat isolat yang diperoleh digunakan sebagai bahan aktif dalam formulasi bioinsektisida. Formula terbaik berdasarkan kriteria viabilitas bakteri adalah formula yang menggunakan bahan pembawa berupa white clay. Formula terbaik untuk bioinsektida cair berdasarkan kriteria viabilitas B. thuringiensisdan kejernihan bioinsektisida adalah menggunakan maltosesebagai osmoprotektan.Pada pengujian toksisitas isolat B. thuringiensisterhadap larvaulat jengkal(Hyposidra talaca)menunjukkan bahwa B. thuringiensishasil percobaan dapat mengen-dalikan larva ulat jengkalhingga 37,5%. Namun demikian toksisitasnya memerlukan waktu yang lebih lama dibandingkan dengan bioinsektisida berbahan aktif B. thuringiensiskomersial. [Kata kuci: Bioinsektisida Bt, pengendalian hama terpadu, sipermetrin, ulat jengkal teh].

The Dynamics of Water Quality During Culture of Snakehead Fish (Channa striata) in The Aquarium Dewi Puspaningsih; Eddy Supriyono; Kukuh Nirmala; Iman Rusmana; Cecep Kusmana; Ani Widiyati
Journal Omni-Akuatika Omni-Akuatika Special Issue 2nd Kripik SCiFiMaS
Publisher : Fisheries and Marine Science Faculty - Jenderal Soedirman University

Intensive culture of snakehead fish used artificial feed with high protein content. The impact of the high use of artificial feed will cause waste that can cause poor water quality and cause fish mortality. The purpose of this research was to know the dynamics of water quality during culture of snakehead fish Channa striata in the aquarium. The test animals used were snakehead fish with a length of 6.90 ± 0.49 cm and weight of 2.57 ± 0.59 g. Fish was maintenanced with a density of 2 fish L-1, 4 fish L-1 and 6 fish L-1. Fish was cultured for four days in an aquarium with size of 60x40x40 cm3 and water volume of 20 L. Water quality were observed, i.e, temperature, pH, dissolved oxygen, TAN, nitrite, nitrate, orthophosphate, hardness and alkalinity. The results showed that pH, temperature, hardness, TAN, nitrite, nitrate and ortophosphate were not significantly different between treatments (P>0.05), while dissolved oxygen and alkalinity were showed different significantly (P<0.05). On the fourth day of culture with a density of 4 fish L-1 and 6 fish L-1 has led to water saturation in the culture media. Dynamic of water quality was started on the third day of culture, whereas nitrites could not be converted to nitrate maximally. High levels of nitrate in the snakehead culture indicated that that this culture could be combined with an integrated aquaculture with plants.

POTENSI PREBIOTIK MADU KLENGKENG, RANDU, DAN ORGANIK TERHADAP KINERJA PERTUMBUHAN IKAN NILA (Oreochromis niloticus) Yani Aryati; Widanarni Widanarni; Dinamella Wahjuningrum; Iman Rusmana; Angela Mariana Lusiastuti
Jurnal Riset Akuakultur Vol 15, No 3 (2020): (September, 2020)
Publisher : Pusat Riset Perikanan, Badan Riset dan Sumber Daya Manusia Kelautan dan Perikanan

Salah satu upaya untuk meningkatkan performa pertumbuhan dan komposisi mikroflora dalam usus, menghambat pertumbuhan patogen, dan meningkatkan imunitas ikan adalah dengan pemberian prebiotik. Madu memiliki kandungan utama berupa oligosakarida, salah satu material yang dapat dimanfaatkan sebagai prebiotik. Penelitian ini bertujuan untuk mengevaluasi potensi madu klengkeng, randu, dan organik sebagai prebiotik dan menguji pengaruhnya terhadap kinerja pertumbuhan ikan nila (Oreochromis niloticus). Kriteria prebiotik yang diuji meliputi kandungan oligosakarida dari madu dan ekstraknya menggunakan kromatografi lapis tipis (KLT), hidrolisis asam lambung dan a-amilase dari ketiga ekstrak madu, serta stimulasi pertumbuhan bakteri probiotik dari ekstrak ketiga jenis madu. Pengujian pada ikan nila dilakukan selama 30 hari dengan perlakuan A (kontrol), B (1% madu klengkeng pada pakan), C (1% madu randu pada pakan), dan D (1% madu organik pada pakan), masing-masing diulang empat kali. Parameter kinerja pertumbuhan yang diukur meliputi bobot biomassa awal, bobot biomassa akhir, pertambahan bobot, konsumsi pakan, laju pertumbuhan spesifik, rasio konversi pakan, dan sintasan. Hasil pengujian dengan KLT menunjukkan ekstrak madu klengkeng dan randu merupakan oligosakarida. Hidrolisis asam lambung dan asam á-amilase selama tiga jam pengamatan mengalami peningkatan, baik dari ekstrak madu klengkeng, madu randu, dan madu organik. Ekstrak madu randu memiliki kinerja paling baik dalam menstimulasi pertumbuhan bakteri probiotik. Madu klengkeng, randu, dan organik memenuhi kriteria prebiotik. Penambahan madu randu pada pakan ikan nila mampu meningkatkan bobot biomassa akhir tertinggi (28,42 ± 0,79); laju pertumbuhan spesifik tertinggi (11,15 ± 0,09), dan memberikan rasio konversi pakan terendah (1,77 ± 0,06) dibandingkan dengan perlakuan madu yang lain. Penambahan madu klengkeng, randu, dan organik sebanyak 1% melalui pakan mampu meningkatkan kinerja pertumbuhan ikan nila dengan hasil terbaik adalah penambahan madu randu.One of the efforts to improvethe growth performance and composition of microflora in the intestine, inhibit the growth of pathogens, and increase the immunity of fish is through the application of prebiotics. Honey is known to contain oligosaccharides, which can be used as prebiotics. This study aimed to evaluate the potential of longan, kapok, and organic honey as prebiotics and examine their effects on the growth performance of tilapia (Oreochromis niloticus). The prebiotic criteria tested included oligosaccharide content from the honey and their extracts using thin layer chromatography (TLC), gastric acid hydrolysis, and a-amylase as well as stimulation of growth of probiotic bacteria from the extract of the honey. Tests on tilapia were carried out for 30 days with treatments A (control), B (1% longan honey added in the feed), C (1% kapok honey added in the feed), and D (1% organic honey added in the feed) and each treatment repeated four times. The measured growth performance parameters included initial biomass weight, final biomass weight, weight gain, feed consumption, specific growth rate, feed conversion ratio, and survival. Test results with TLC showed that the extract of longan honey and kapok were oligosaccharides. Gastric acid hydrolysis and á-amylase acid during three hours of observation showed an increase, both from the extract of longan, kapok, and organic honey. The extract of kapok honey has the best performance in stimulating the growth of probiotic bacteria. Longan, kapok, and organic honey meet the criteria required for prebiotic. The addition of kapok honey intilapia feed attained the highest final biomass weight (28.42 ± 0.79), the highest specific growth rate (11.15 ± 0.09), and produced the lowest feed conversion ratio (1.77 ± 0.06) compared to the other honey treatments. The addition of 1% longan, kapok, and organic honey in feed can improve the growth performance of tilapia, of which kapok honey gives the best result.

UJI IN VITRO BAKTERI ANTI QUORUM SENSING PENDEGRADASI ACYL HOMOSERINE LACTONE Aeromonas hydrophila Hessy Novita; Iman Rusmana; Munti Yuhana; Fachriyan Hasmi Pasaribu; Angela Mariana Lusiastuti
Jurnal Riset Akuakultur Vol 11, No 3 (2016): (September 2016)
Publisher : Pusat Riset Perikanan, Badan Riset dan Sumber Daya Manusia Kelautan dan Perikanan

Anti quorum sensing (AQS) adalah proses inaktivasi atau degradasi molekul sinyal quorum sensing (QS) yaitu acyl homoserine lactone (AHL) tanpa memengaruhi pertumbuhan bakteri. Tujuan dari penelitian ini adalah untuk melakukan uji kultur bersama dan uji penghambatan faktor virulensi secara in vitro antara bakteri AQS dengan Aeromonas hydrophila sebagai patogen yang menyebabkan Motile Aeromonad Septicaemia (MAS) pada ikan air tawar. Hasil penelitian menunjukkan bahwa uji in vitro dengan kultur bersama antara bakteri AQS Bacillus sp. dan A. hydrophila tidak ada penghambatan pertumbuhan pada kedua bakteri, tetapi bakteri AQS dapat menghambat produksi faktor virulensi dari A. hydrophila yaitu protease dan hemolisin. AQS merupakan salah satu strategi yang potensial untuk diaplikasikan dalam pengendalian penyakit infeksius atau bakteri patogen resisten antibiotik pada budidaya ikan air tawar.Anti quorum sensing (AQS) was process of inactivation or degradation of Quorum sensing signal molecules of acyl homoserine lactone (AHL) without affecting growth of the bacteria. The aim of the reseach was to study in vitro assay of co-culture and inhibition of virulence factors between AQS bacteria which Aeromonas hydrophila as pathogen caused motile aeromonad septicaemia (MAS) in fresh water fish. The result showed that in vitro assay of co culture between AQS bacteria Bacillus sp. and A. hydrophila without inhibited of growth in both bacteria but bacteria AQS could suppressed production A. hydrophila virulence factors, protease, and hemolysin. The AQS is one of potential strategies to inhibit QS for application to control of infectious diseases or antibiotic resistant bacterial pathogens in fresh water aquaculture.

SKRINING DAN IDENTIFIKASI BAKTERI ANTI QUORUM SENSING ASAL TAMBAK UDANG VANAME PENGHAMBAT VIRULENSI Vibrio parahaemolyticus Emei Widiyastuti; Iman Rusmana; Munti Yuhana
Jurnal Riset Akuakultur Vol 16, No 1 (2021): (Maret, 2021)
Publisher : Pusat Riset Perikanan, Badan Riset dan Sumber Daya Manusia Kelautan dan Perikanan

Vibriosis dapat dicegah dan dikendalikan dengan memanfaatkan mekanisme anti quorum sensing (AQS). Salah satu strategi anti quorum sensing dalam menghambat ekspresi faktor virulen dari Vibrio parahaemolyticus yaitu dengan mendegradasi sinyal komunikasi sel bakteri menggunakan AHL laktonase. Penelitian ini bertujuan untuk menyeleksi dan mengindentifikasi bakteri penghasil AHL laktonase yang berpotensi mampu menghambat virulensi bakteri patogen V. parahaemolyticus. Isolasi bakteri dilakukan dari sampel saluran pencernaan udang vaname, air, dan sedimen tambak. Sebanyak 18 dari 111 isolat yang diisolasi menunjukkan adanya aktivitas AQS terhadap bioindikator Chromobacterium violaceum. Hasil uji patogenitas secara in vitro pada agar darah didapatkan tiga isolat yang tidak menunjukkan aktivitas hemolisis yaitu B5, K4, dan S12. Hasil konfirmasi dan analisis gen aiiA menggunakan Blast-X menunjukkan bahwa isolat B5 dan S12 memiliki kesamaan dengan AHL laktonase pada Bacillus cereus, sedangkan K4 memiliki similaritas dengan AHL laktonase pada multispesies Bacillus sp. Hasil pensejajaran sekuen gen 16S rRNA ketiga isolat tersebut dengan data pada GenBank, teridentifikasi sebagai Bacillus siamensis (B5), Bacillus cereus (K4), dan Bacillus amyloliquefaciens (S12). Berdasarkan hasil uji antagonis dan uji kultur bersama disimpulkan bahwa isolat K4 bekerja dengan mekanisme AQS sedangkan isolat B5 dan S12 diduga berjalan dua mekanisme secara bersama yaitu antibiosis dan anti quorum sensing. Hasil penelitian ini menunjukkan bahwa ketiga isolat tersebut memiliki potensi sebagai kandidat agen biokontrol pada akuakultur sehingga perlu dilakukan uji lanjutan.Vibriosis can be prevented and controlled by utilizing the anti-quorum sensing (AQS) mechanism. One of the anti-quorum sensing mechanisms to inhibit the expression of virulent factors of Vibrio parahaemolyticus is by degrading the quorum sensing communication signals using AHL lactonase. The study aimed to select and identify AHL lactonase-producing bacteria that have the potentials to inhibit the virulence of V. parahaemolyticus. Several batches of bacteria were isolated from the digestive tract of vannamei shrimp, water, and sediment of shrimp ponds. There were 18 out of 111 isolates that showed AQS activity against Chromobacterium violaceum used as a bioindicator. In vitro pathogenicity test on blood agar showed that B5, K4, and S12 isolates showed gamma hemolysis activity. The results of confirmation and analysis of aiiA genes using Blast-X showed that B5 and S12 isolates have AHL lactonase similarities with Bacillus cereus, whereas K4 has similarities with multispecies Bacillus sp. Alignment results of the 16S rRNA gene sequences with GenBank data showed that B5, K4, and S12 isolates were identified as Bacillus siamensis, Bacillus cereus, and Bacillus amyloliquefaciens, respectively. The follow up antagonistic and coculture tests revealed that K4 uses the AQS mechanism, while B5 and S12 likely use antibiotic mechanism and anti quorum sensing to inhibit the virulent expression of V. parahaemolyticus. This study concludes that the three isolates have the potential to be used as biocontrol agents in brackishwater aquaculture. Further research is needed to determine the pathogenicity of AQS bacteria to vannamei shrimp and the effective concentration of AQS bacteria to inhibit the virulence of V. parahaemolyticus to vannamei shrimp by in vivo treatment.

ISOLASI DAN KARAKTERISASI BAKTERI DENITRIFIKASI SEBAGAI AGEN BIOREMEDIASI NITROGEN ANORGANIK Khairul Syahputra; Iman Rusmana; Utut Widyastuti
Jurnal Riset Akuakultur Vol 6, No 2 (2011): (Agustus 2011)
Publisher : Pusat Riset Perikanan, Badan Riset dan Sumber Daya Manusia Kelautan dan Perikanan

Denitrifikasi merupakan salah satu proses utama yang mengurangi kandungan senyawa nitrogen anorganik di lingkungan. Proses ini dapat digunakan untuk mengatasi kelebihan senyawa nitrogen anorganik yang tinggi di kolam budidaya perikanan. Penelitian ini bertujuan untuk mengisolasi dan mengkarakterisasi isolat bakteri denitrifikasi sebagai agen bioremediasi senyawa nitrogen anorganik. Sebanyak 21 isolat bakteri pereduksi nitrat berhasil diisolasi dari medium pengkayaan dengan konsentrasi nitrat 100 µM dan 1500 µM. Sebanyak 6 isolat merupakan kelompok bakteri denitrifikasi (fermentatif negatif) dan 15 isolat termasuk kelompok bakteri fermentatif. Berdasarkan hasil seleksi didapatkan isolat HNF5 dan LNF mempunyai kemampuan reduksi nitrat yang tinggi. Aktivitas reduksi nitrat terjadi dari awal inkubasi, di mana aktivitas paling cepat terjadi pada fase eksponensial pertumbuhan bakteri. Isolat HNF5 dan LNF memiliki kecepatan maksimum reduksi nitrat (Vmaks) 0,17 mM.h-1 dan 0,16 mM.h-1 dengan nilai konstanta Michaelis-Menten (Km) 0,40 mM dan 0,28 mM. Identifikasi dengan sekuen 16S-rRNA memperlihatkan bahwa isolat HNF5 dan LNF mempunyai kemiripan dengan Pseudomonas aeruginosa.

KARAKTERISASI BAKTERI ANTI QUORUM SENSING (AQS) SEBAGAI PENGHAMBAT VIRULENSI PENYAKIT PADA IKAN LELE DUMBO (Clarias gariepinus) Hessy Novita; Iman Rusmana; Munti Yuhana; Fachriyan Hasmi Pasaribu
Jurnal Riset Akuakultur Vol 10, No 1 (2015): (Maret 2015)
Publisher : Pusat Riset Perikanan, Badan Riset dan Sumber Daya Manusia Kelautan dan Perikanan

Penyakit bakterial adalah salah satu penyebab kerugian besar di bidang akuakultur. Faktor virulensi bakteri penyakit umumnya diekspresikan oleh gen-gen virulen yang diregulasi dengan sistem Quorum Sensing. Tujuan dari penelitian ini adalah untuk mendapatkan isolat bakteri yang memiliki potensi sebagai Anti Quorum Sensing (AQS) yang dapat menghambat faktor virulensi bakteri patogen penyebab penyakit pada ikan lele dumbo (Clarias gariepinus). Isolasi bakteri dilakukan dari sedimen, organ pencernaan dan air kolam ikan lele dumbo dari Parung, Ciampea, dan Gunung Sindur, Bogor, Jawa Barat. Sebanyak 347 isolat bakteri berhasil diisolasi, dan sebanyak 68 (19%) isolat di antaranya mempunyai aktivitas AQS dengan empat isolat yang berpotensi sebagai bakteri AQS yaitu: TS 1 dan TS 2, TA 23, dan TY 33. Empat isolat tersebut teridentifikasi berdasarkan sekuen 16S rRNA sebagai Bacillus amyloliquefaciens, Lysinnibacillus sphaericus, Lysinnibacillus fusiformis, dan Bacillus cereus dengan persentase kemiripan masing-masing 93%, 99%, dan 100%. Berdasarkan analisa gen AHL (Acyl Homoserine Lactone) laktonase (aiiA), keempat isolat tersebut menghasilkan enzim AHL. Hasil studi ini menunjukkan bahwa isolat bakteri hasil isolasi dari kolam ikan lele dumbo dapat menghambat mekanisme Quorum Sensing bakteri patogen ikan dengan mendegradasi autoinduser-nya yang berupa AHL.

Colonisation Capacity of Vibrio sp. strain Alg 3.1 and Abn 1.2 in the Gastrointestinal Tractof Gnotobiotic Abalone Faturrahman Faturrahman; Iman Rusmana; Anja Meryandini
Jurnal Penelitian Pendidikan IPA Vol. 6 No. 2 (2020): July
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v6i2.339

The use of Vibrio strains as probiotics in Indonesia is very rarely reported. The purpose of this study is to select and develop Vibrio probiotic strains that can increase the rate of abalone growth. The ability of bacterial isolates to colonize the abalone digestive tract is one of the important parameters in the selection of probiotic candidates. The research method consisted of 3 main stages namely modification of Vibrio sp isolates to rifampicin mutants, manufacture of gnotobiotic abalone and colonization capacity test. The treatment given in the colonization capacity test is a type of bacteria that consists of Vibrio sp. line Abn1.2RfR, Alg3.1RfR, combination of Abn1.2RfR + Alg3.1RfR, and control without the addition of Vibrio sp. Each type of bacterial treatment was entered in a 10 liter aquarium capacity containing 10 abalone size ± 3.5 cm. Feed in the form of Gracilaria cake containing Vibrio sp. (final concentration of 107 cfu / mL) was given at the beginning of the study. Abalone is observed for 24, 48 and 72 hours without water replacement. Then count the total number of bacteria and the number of agarolytic bacteria. The results showed that the growth characteristics of wild-type Vibrio with mutant Vibrio were not different.Thus it is expected that the use of the two mutant isolates for in vivo testing has the same effectiveness as the wild type.The capacity of colonization of a single isolate or a combination of rifampicin mutant Vibrio continues to decrease with increasing time of observation. Nevertheless, the percentage of mixed isolates remained higher than that of single isolates during the observation time

FLUKS GAS RUMAH KACA CO2, CH4 DAN N2O PADA LAHAN EKOSISTEM MANGROVE DI SUNGAI TALLO, MAKASSAR (Fluxes of greenhouse gases CO2, CH4 and N2O from mangrove soil in Tallo River, Makassar) Rahman Rahman; Yusli Wardiatno; Fredinan Yulianda; Hefni Effendi; Iman Rusmana
Jurnal Biologi Tropis Vol. 18 No. 2 (2018): Juli - Desember
Publisher : Universitas Mataram

Studies on the fluxes of greenhouse gases in mangrove ecosystems especially during tides are relatively scarce. The research was conducted in Tallo River Makassar which is a mangrove ecosystem habitat. Gas sampling was done by utilising size 0,5x0,5x1 m3 chamber through a syringe during the tidal periods. Gas analysis was done using gas chromatography methods. The research shows that the flux of CO2 gasduring high tide was 204,84 mg m-2 hr-1 or 1,79 kg m-2 year-1 ÃÂ and 183,81 mg m-2 hr-1 or 1,61 kg m-2 year-1 during low tide, while the flux of CH4 gaswas 0,75 mg m-2 hr-1 or 0,007 kg m-2 year-1 ÃÂ during high tide and 0,62 mg m-2 hr-1 or 0,005 kg m-2 year-1 during low tide, and the flux of N2O gaswas 0,141 mg m-2 hr-1 or 0,0012 kg m-2 year-1 ÃÂ during high tide and 0,145 mg m-2 hr-1 or 0,0013 kg m-2 year-1 ÃÂ during low tide. Keywords : greenhouse gas flux, mangrove ecosystem, Tallo River

Co-Authors Abdjad Asih Nawangsih ACENG RUYANI Achmad Dinoto Aderiana Masthura AKHADIYA, ALINA Alfan Cahyadi Alfisah, Rizal Khoirun Aliati Iswantari Alina Akhdiya Alina Akhdiya ALINA AKHDIYA Amanda, Nisa Widya Angela Mariana Lusiastuti Angela Mariana Lusiastuti Ani Suryani Ani Suryani Ani Widiyati ANIK KUSMIATUN Anja Meryandini Anja Meryandini Antonius Suwanto Apon Zaenal Mustopa Ari Fina Bintarti Ari Fina Bintarti, Ari Fina Aris Tri Wahyudi Armanisa, Khafifah Baskoro S Wibowo Cahyadi, Alfan Cecep Kusmana CECILIA ANNA SEUMAHU CECILIA ANNA SEUMAHU Ciptadi Achmad YUSUP Daniel Djokosetiyanto Darmono Taniwiryono Desniar - - Dewi Puspaningsih DIAH ISKANDRIATI Dian Hendrayanti Dinamella Wahjuningrum Dondin Sajuthi DWI ANDREAS SANTOSA Dwi Ningsih Susilowati Eddy Supriyono Emei Widiyastuti Fachriyan Hasmi Pasaribu Fachriyan Hasmi Pasaribu Faturrahman Faturrahman Ferbiyanto, Andri Fredinan Yulianda Frijona Fabiola Lokollo GALUH WENING PERMATASARI Gunawan Djajakirana Hamim Hamim Happy Widiastuti Hefni Effendi Hessy Novita Hessy Novita I Komang Gede Wiryawan I MADE ARTIKA I Made Samudra Ifa Manzila Ika Roostika Tambunan, Ika Roostika Ika Setianingsih, Ika Indriyani, Yohanna Anisa Irwan Cahyadi It Jamilah KATHARINA JESSICA Khairul Syahputra Kukuh Nirmala Kuntari, Wahyu Budi Lena Novita Lingga, Rahmad Lizawati . Maggy Thenawidjaya Suhartono Maggy Thenawidjaya Suhartono Mahdani, Wilda Mahyarudin, Mahyarudin Manguntungi, Baso Masrukhin Masrukhin Masthura, Aderiana Miftahudin . Mukti Ali MUNTI YUHANA MUTTAQIN, MAFRIKHUL Nedwell, David B. Niken T.M Pratiwi, Niken T.M NISA RACHMANIA MUBARIK Nisa Widya Amanda Novita, Lena Nurfahmi, Riziq Ilham Nurhakiki Nurjanah PRIHASTO SETYANTO Prihasto Setyanto Priyo Handoyo Wicaksono Rahman Rahman Rahman Rahman Rahminovita Herlis RATNA SETYANINGSIH RATNA SETYANINGSIH RATNANINGTYAS, SUSI RIDWAN AFFANDI Rika Indri Astuti RIKA RAFFIUDIN Rina Hesti Utami Risky Hadi Wibowo Risky Hadi wibowo Roedhy Poerwanto Rosadela, Fitri Sipriyadi Sipriyadi Sipriyadi Siti Nur Jannah Sobir Sobir Solly Aryza Sri Budiarti Poerwanto Suhartono Suhartono SUSAN SOKA Syaiful Anwar T. Widiyanto Taruna D. Satwika TARUNI SRI PRAWAST MIEN KAOMINI ANY ARYANI DEDY DURYADI SOLIHIN Thenawidjaya, Maggy Tri Eko WAHYONO Tri Handayani Kurniati Tri Handayani Kurniati Tri Muji Ermayanti Tri P. Priyatno Tri Panji Tri Puji Priyatno Tri Widiyanto Tridesianti, Siska Tuasalamony, Mutia Musdalifah Utut Widyastuti Wahyuni, Reza Wibowo, Risky Hadi WIDANARNI WIDANARNI Widiyanto, Tri Wilda Mahdani Wildan Nurusallam Wiraswati, Sri Martina Yadi Suryadi Yani Aryati Yohana A Dahliani Yohanna Anisa Indriyani Yuli Siti Fatma Yuli Siti Fatma YULIN LESTARI Yuni Puji Hastuti Yusli Wardiatno Zaenal Arifin, Sukarya Zulfarina Zulfarina Zulfarina,

Title

Found 82 Documents
Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title Search

Found 82 Documents Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title

Found 82 Documents
Search