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Latupapua, H.J.D.
Perhimpunan Biologi Indonesia
Biochemistry, Genetics & Molecular Biology

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Skrining Rhizobium dari Wamena pada Weki di Rumah Kaca Latupapua, H.J.D.
JURNAL BIOLOGI INDONESIA Vol 3, No 2 (2001): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jbi.v3i2.3480

Abstract

ABSTRACTThe Screening of Isolated Rhizobium from Wamena on Weki in Green House Condition. The green house experiment has been carried out to study the effectiveness of some Rhizobium isolates on the growth of weki (Paraserianthes falcataria) seedlings. Thirteen isolates of Rhizobium viz. 1wy(1), 1wy(2), 1wy(3), 2wy(4), 3wy(1), 3wy(2), 4wy(1), 5wy(1), 6wy(1), 7wy(1), 9wy(1), 10wy(3) and 11wy(1) have been screened and inoculated to the plant seedlings. The purpose of the study was to find out whether the Rhizobium isolates able to stimulate and improve the growth of weki seedlings. The results showed that all of the Rhizobium isolates could stimulate the production of the root nodules . However each isolate was difference effect on the plant growth. Isolate number 11 wy(1) could stimulate all the plant growth parameters significantly.Key words: Screening, seedling, Paraserianthes falcataria, weki, green house, Rhizobium.
Daya Pacu Mikroba Pelarut Fosfat dan Penambat Nitrogen pada Tanaman Jagung Latupapua, H.J.D.; Suliasih, Suliasih
JURNAL BIOLOGI INDONESIA Vol 3, No 2 (2001): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (199.511 KB) | DOI: 10.14203/jbi.v3i2.3477

Abstract

ABSTRACTThe Stimulating Capacities of the Phosphate Solubilizing and the Nitrogen Fixing Microbes on the Maize Plant. The green house experiment has been carried out to study the effectiveness of the phosphate solubilizing microbes (PSM) and nitrogen fixing bacteria (NFB) on the growth of maize (Zea mays). The phosphate solubilizing microbes were Aspergillus sp. and Gigaspora margarita while the nitrogen fixing bacteria were Azospirillum sp. and Azotobacter sp. have been used in this experiment. The aim of the experiment was to find the suitable and effective inoculant on the maize and its expected the growth of the plant. The experiment used The Completely Randomize Design with three replicates. The treatments were uninoculated plant (control), the plants inoculated with single microbe of PSM, NFB and the combination of both. The results indicated that the phosphate solubilizing microbes (PSM) and the nitrogen fixing bacteria (NFB) which were either used in single or combination formula could stimulate the plant growth. The dual inoculation of Azotobacter sp. and Aspergillus sp. were found the higest yield of maize.Key words : The phosphate solubilizing microbes, the nitrogen fixing bacteria, Mycorrhiza vesicular arbuscular, Zea mays.
Identifikasi Keragaman Khamir yang Diisolasi dari Tanah Kebun Biologi Wamena Kabupaten Jayawijaya, Propinsi Papua Kanti, Atit; Latupapua, H.J.D.
JURNAL BIOLOGI INDONESIA Vol 3, No 2 (2001): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (432.037 KB) | DOI: 10.14203/jbi.v3i2.3483

Abstract

ABSTRACTThe Identification of Yeasts Which Were Isolated from Soils in the Wamena Biological Garden, Jayawijaya Residence, Papua Province. The present study deals with the isolation and identification of yeasts isolated from soil samples in The Wamena Biological Garden, Papua. Microbial population in 11 samples were estimated by plate count method. The yeasts population were ranged from 30.0 x102 until 16.5 x106 cells/g soil. Fifteen isolates of yeasts were taxonomically studied. On the basis of morphological and physiological characteristics these isolates were belonging to two group namely ascomycetous-imperfect yeasts and basidiomycetous yeasts. Futher, they were separated into three group. Out of 15 isolates, eleven isolates were included in group I and identified into genus level as Cryptococcus, three in group II as Candida and one isolate in group III identified into species level as Cryptococcus albidus. Type of sample sources appeared has no effect on yeasts diversity as shown by similar yeast isolate was observed isolated from different sources.Key words : Ascomycetous-imperfect yeasts, basidiomycetous yeasts, The Wamena Biological Garden, Papua.
Ragam Aktivitas Urease dan Fosfomonoesterase serta Perannya dalam Ketersediaan Nutrisi N dan P pada Tanah Kebun Biologi Wamena Rahmansyah, Maman; Latupapua, H.J.D.; Sudiana, I Made
JURNAL BIOLOGI INDONESIA Vol 3, No 4 (2002): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (890.513 KB) | DOI: 10.14203/jbi.v3i4.3325

Abstract

ABSTRACTDiscrepancy of urease and phosphomonoesterase activities and its role in establishing Nand P nutrition in soil collected from Wamena Biological Research Station. Microbialactivities in soil lead to know for establishing soil nutrient status. Accordingly, soil collectedfrom Biological Research Station in Wamena then sent to the laboratory and determined on itsenzymatic activities and the physicochemical, as well. In this work, the enzymatic activities ofurease and phosphomonoesterase were examined in relation with soil microbial respiration, inorder to understand the mineralization of nitrogenous and phosphorus compound in soil. Soilrespiration rate (2.43-3.21 mg C02 g-dm12hour) designated variation in each sample, as wellas urease (8.6-23.5 unit/g soil) and phosphomonoesterase (5.5-7.9 unit/g soil) activities.Phosphomonoesterase activity showed strong correlation with respiration rate within soil; andreveal to the configuration of the bioactivities and physicochemical soil figures concluded thatthe B sample has the poor fertility. The phenomenon of data fulfill that bioactivities hadcorrelation with the physicochemical compound in the soil.Keywords: respiration, urease, phosphomonoesterase, Wamena Biological Research Station.
Co-Authors Atit Kanti I Made Sudiana Maman Rahmansyah Suliasih Suliasih