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Ivan Permana Putra
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Jurnal Sumberdaya Hayati
Published by Institut Pertanian Bogor
ISSN : -     EISSN : 2477037X     DOI : DOI: 10.29244/jsdh.9.1.7-16
Core Subject : Science, Agriculture,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Immunology & microbiology
The "Jurnal Sumberdaya HAYATI" is a peer-reviewed and an open access journal published by Department of Biology, Bogor Agricultural University, Indonesia. The journal publishes significant and important research from all area of biodiversity, biosystematics, ecology, physiology, behavior, genetics and biotechnology. All life forms, ranging from microbes, fungi, plants, animals, and human, including virus.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Pertanian dan Biologi (Lain-Lain)
Articles 153 Documents
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Studi Ekologi Macrobrachium lanchesteri di Habitat Perairan IPB University: Ecological Study of Macrobrachium lanchesteri in the Aquatic Habitats of IPB University Nurul Wardah Assaumi; Assaumi, Nurul Wardah; Hapsarini, Marsha; Shafira, Aviani Rinfi; Sadana, Firnandez Ngariswara Vidsia; Priawandiputra, Windra
Jurnal Sumberdaya Hayati Vol. 11 No. 4 (2025): 2025
Publisher : Departemen Biologi, Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jsdh.11.4.160-164

Abstract

Macrobrachium lanchesteri merupakan udang air tawar yang menyebar luas di perairan Indonesia dan berpotensi mengganggu ekosistem lokal. Penelitian ini bertujuan mengkaji aspek ekologi M. lanchesteri di Danau Telaga Inspirasi, Kampus IPB Dramaga. Pengambilan sampel dilakukan pada delapan titik menggunakan perangkap berumpan usus ayam selama 48 jam, disertai pengukuran kualitas air (pH, suhu, DO). Hasil menunjukkan kelimpahan individu tertinggi pada titik dengan substrat berlumpur dan vegetasi tepi, khususnya titik 1 dan 4. Suhu dan pH perairan berkisar antara 29,2–30,8 °C dan 6,5–6,8, sedangkan DO berada pada 5,6–6,3 mg/L. Kondisi optimum bagi kelimpahan udang teridentifikasi pada suhu 29–29,5 °C, pH netral (6,5–6,6), dan DO >6 mg/L. Penurunan drastis kelimpahan pada pengulangan kedua diindikasikan akibat kualitas umpan yang menurun. Temuan ini mengonfirmasi preferensi habitat M. lanchesteri pada area bervegetasi dan menunjukkan potensi invasi serta dominansi ekologis yang perlu dimonitor secara berkelanjutan
Pengaruh Nutrisi Terhadap Jumlah Bakteri Indigenous pada Limbah Tahu: The Effect of Nutrition on the Number of Bacteria in Tofu Waste Tridesianti, Siska; Darniwa, Adisty Virakawugi; Suryani, Yani; Novianti, Devi; Aji, Luthfi Akmal; Adisty Virakawugi Darniwa, Adisty Virakawugi Darniwa; Yani Suryani, Yani Suryani; Devi Novianti, Devi Novianti; Luthfi Akmal Aji, Luthfi Akmal Aji
Jurnal Sumberdaya Hayati Vol. 11 No. 4 (2025): 2025
Publisher : Departemen Biologi, Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jsdh.11.4.130-136

Abstract

Indigenous bacteria found in natural environments, such as tofu waste, are strongly influenced by environmental factors and environmental nutrients. The purpose of this study was to determine the effect of tofu waste nutrients on the number of indigenous bacteria in tofu waste. The parameters observed were the characteristics of tofu waste, such as color, aroma, acidity level (pH), and analysis of nutrient content through proximate tests, as well as the calculation of the number of indigenous bacteria using the Total Plate Count method. The results showed that tofu waste was yellowish in color and had a soy aroma, but there was a slight sour aroma in tofu liquid waste. Tofu solid waste had a pH of 6, while tofu liquid waste had a pH of 5. The levels of nutrients, namely protein, fat, ash, and carbohydrates, were higher in tofu solid waste, while the water content was higher in tofu liquid waste. The total indigenous bacteria in tofu solid waste were higher (3.78 × 106 CFU/mL) than in tofu liquid waste (5.55 × 105 CFU/mL). This study concluded that high nutrient content correlated with an increase in the number of indigenous bacteria in tofu waste.  
Genetic Engineering of Potato (Solanum tuberosum L.) IPB CP2 Variety with OsGERLP Gene: Genetic Transformation of Potato (Solanum tuberosum L.) IPB CP2 Variety with OsGERLP Gene Nurhasanah, Eka; Tjahjoleksono, Aris; Miftahudin, M.
Jurnal Sumberdaya Hayati Vol. 11 No. 4 (2025): 2025
Publisher : Departemen Biologi, Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jsdh.11.4.137-145

Abstract

High dissolved aluminum (Al) content in acidic soil can inhibit root elongation, especially in plants sensitive to Al. The OsGERLP gene is known to be an Al tolerance gene in rice, but the role of this gene in other plants is not yet known. Introduction of the OsGERLP gene to potato cv. IPB CP2 mediated by Agrobacterium tumefaciens has been succesfully conducted. When using leaf explant, the transformation and regeneration efficiencies were 72.62 and 17.24%, respectively. However, transgene introduction using internode explant increased transformation and regeneration efficiencies to 71.3 and 87.65%, respectively. PCR-based transgene integration analysis showed that all transgenic clones contain the OsGERLP gene under the control of the 35ScaMV promoter, which was indicated by the formation of 1500 bp amplicons. Transgenic clones have been in vitro tested for Al stress using liquid MS medium with different pH and Al content. The result showed that all transgenic clones have higher tolerance to Al compared to non-transgenic plant. Morphological analysis showed that transgenic clones performed better in all parameters including plant height, total root length, number of roots, shoot and root fresh weight, shoot and root dry weight. The transgenic clones can potentially be developed as potato transgenic lines tolerant to Al toxicity.

Page 16 of 16 | Total Record : 153

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