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Isolation of MA-ACS Gene Family and Expression Study of MA-ACS1 Gene in Musa acuminata Cultivar Pisang Ambon Lumut LISTYA UTAMI KARMAWAN; SONY SUHANDONO; FENNY MARTHA DWIVANY
HAYATI Journal of Biosciences Vol. 16 No. 1 (2009): March 2009
Publisher : Bogor Agricultural University, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (440.641 KB) | DOI: 10.4308/hjb.16.1.35

Abstract

Musa acuminata cultivar pisang ambon lumut is a native climacteric fruit from Indonesia. Climacteric fruit ripening process is triggered by the gaseous plant hormone ethylene. The rate limiting enzyme involved in ethylene biosynthesis is ACC synthase (ACS) which is encoded by ACS gene family. The objective of this study is to identify MA-ACS gene family in M. acuminata cultivar pisang ambon lumut and to study the MA-ACS1 gene expression. The result showed that there were nine M. acuminata ACS gene family members called MA-ACS1–9. Two of them (MA-ACS1 and MA-ACS2) were assessed using reverse transcriptase PCR (RT-PCR) for gene expression study and it was only MA-ACS1 correlated with fruit ripening. The MA-ACS1 gene fragment has been successfully isolated and characterized and it has three introns, four exons, and one stop codon. It also shows highest homology with MACS1 gene from M. acuminata cultivar Hsian Jien Chiao (GenBank accession number AF056164). Expression analysis of MA-ACS1 using quantitative PCR (qPCR) showed that MA-ACS1 gene expression increased significantly in the third day, reached maximum at the fifth day, and then decreased in the seventh day after harvesting. The qPCR expression analysis result correlated with the result of physical analysis during fruit ripening. Key words: pisang ambon lumut, MA-ACS gene family, gene characterization, gene expression, quantitative PCR (qPCR)
Pre-treatment and Suitable Reagent Enabled a Reliable and Consistent for Molecular Detection of Fusarium oxysporum f. sp. cubense Tropical Race 4 (Foc4) Listya Utami Karmawan; Fenny Martha Dwivany; Rizkita Rachmi Esyanti; I Nyoman Pugeg Aryantha
HAYATI Journal of Biosciences Vol. 26 No. 4 (2019): October 2019
Publisher : Bogor Agricultural University, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (900.193 KB) | DOI: 10.4308/hjb.26.4.196

Abstract

Fusarium wilt which is caused by the soil-borne fungus, Fusarium oxysporum f.sp. cubense (Foc), is one of important diseases in banana plant. Foc tropical race 4 (Foc4) is the most pathogenic race which could infect various banana cultivars including Cavendish cultivar which was previously considered as resistant cultivar. Molecular detection of Foc using PCR analysis is indispensable to determine the race of Foc. We demonstrate a faster DNA isolation procedure described in previous method by substituting sodium acetate precipitation with ammonium acetate precipitation without affecting the result. Based on our experience, some fungal genomes were troublesome to be amplified. We suggested pre-treatment step prior to amplification procedure by incubating fungal DNA in 65°C for 10 minutes for any samples of fungal genome, including stubborn samples, before mixing into PCR mix reagent. PCR reagents should be tested for stubborn samples since some of the reagents were unable to amplify the desired DNA fragment. Pre-treatment and the choice of robust PCR reagent should be taken into consideration for a reliable and consistent Foc4 molecular detection result.
Towards Green Rusunawa: Clean Water Utilization, Composting, and Urban Farming in Muara Baru Flats Dion Notario; Ferdian Suprata; Meda Canti; Listya Utami Karmawan
MITRA: Jurnal Pemberdayaan Masyarakat Vol 5 No 1 (2021): MITRA: Jurnal Pemberdayaan Masyarakat
Publisher : Institute for Research and Community Services

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25170/mitra.v5i1.1077

Abstract

Waste disposal and clean water management are some of the common social issues arising in densely populated settlements, including Muara Baru flats, Jakarta. Some programs have been carried out to overcome these two issues in Muara Baru, such as the construction of a Rain Water Harvesting (RWH) facility and the provision of Trash Banks. Nevertheless, adequate support for the residents is still needed to boost their awareness of proper clean water management and waste disposal and to encourage the formation of urban agriculture, which is expected to elevate their living standards. Therefore, a community empowerment program in Muara Baru was developed, consisting of three sections: education on clean water management, compost making training, and urban farming. The success of this program was then measured using questionnaires and focus group discussions. A majority of residents responded positively to the program and were willing to actively participate by preparing the land, making compost, planting seeds, or caring for the harvest. There were indeed some obstacles hampering the program's success, such as lack of commitment from the local community, climate change, water availability, and arable land availability. To overcome these barriers and to promote the program’s sustainability, some suggestions are to be proposed, including proper selections of plant types and provision of support and motivation for the local community.
PENYEDIAAN SARANA CUCI TANGAN SEDERHANA UNTUK PENCEGAHAN PENYEBARAN COVID-19 DI PASAR GENTENG, SURADITA, CISAUK Listya Utami Karmawan; Widya Agustinah; Renna Eliana Warjoto; Daru Seto Bagus Anugrah; Danniella Yudianti; Illene Nanine; Eunice Catherine Witness
Jurnal Bakti Masyarakat Indonesia Vol 4, No 1 (2021): Jurnal Bakti Masyarakat Indonesia
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat, Universitas Tarumanagara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24912/jbmi.v4i1.9487

Abstract

COVID-19, a source of distress in most countries, has encouraged world leaders to issue necessary policies to resolve this global pandemic. An alarming rate of infections in the community has pushed the Indonesian government to come up with the Large-Scale Social Restriction (Pembatasan Sosial Berskala Besar/PSBB). The faculty of Biotechnology of Atma Jaya Catholic University of Indonesia has since initiated a community service to halt the spread of COVID-19 by supplying simple hand washing facilities around Pasar Genteng Traditional market in Suradita, Cisauk. Prior to the installations, the traditional market lacked proper sanitizing facilities. Clean water sources such as taps are commonly situated far away from the marketplace. Traders and visitors crowd these areas each day, exponentially increasing the risk of spreading COVID-19. The crowded populations of the traditional market are a motivating factor for this community service, which aims to increase the public awareness in the prevention of COVID-19. Activities of this community service includes installations of hand washing facilities along with educational infographics of proper sanitizing procedures. A total of 21 participants attended the community service while maintaining physical distancing conditions and were encouraged to use the hand wash facilities at the end of the service. The community service was successful, providing impactful benefits towards the traders and visitors, with a raised community awareness of the importance of personal hygiene. The facilities are well maintained after 4 weeks and exemplary community awareness is displayed from their initiative that showed from the monitoring and evaluation results.  ABSTRAK:COVID-19, yang merupakan sumber penyebab keresahan berbagai negara di dunia telah menyebabkan pemerintah dunia mengeluarkan kebijakan untuk mengatasi pandemi yang terjadi secara global ini. Data di Indonesia menunjukkan angka terinfeksi yang terus meningkat sehingga pemerintah mengeluarkan kebijakan berupa Pembatasan Sosial Berskala Besar (PSBB). Oleh karena itu, Fakultas Teknobiologi Universitas Katolik Indonesia Atma Jaya berinisiatif melakukan kegiatan pengabdian masyarakat untuk menghambat tingkat penyebaran COVID-19 melalui penyediaan sarana cuci tangan sederhana di Pasar Genteng. Pasar tradisional ini terletak di kompleks Suradita, Cisauk. Sebelum kegiatan pemasangan, pasar ini kekurangan fasilitas sanitasi yang layak. Sumber air bersih seperti air sumur terletak jauh dari pasar dan belum ada akses air ledeng. Setiap hari pedagang dan pengunjung memadati pasar sehingga meningkatkan risiko penyebaran COVID-19. Oleh karena itu, kegiatan pengabdian masyarakat ini difokuskan pada pembuatan dan pemasangan fasilitas cuci tangan sederhana yang dilengkapi dengan infografis tentang cara mencuci tangan yang benar serta pembagian masker kain. Serah terima perangkat cuci tangan dan acara pembukaan dihadiri oleh 21 orang peserta dengan tetap memperhatikan protokol kesehatan. Kegiatan pengabdian masyarakat melalui penyediaan sarana cuci tangan sederhana di Pasar Genteng, Cisauk telah berlangsung dengan baik dan dirasakan manfaatnya oleh para pedagang dan pengunjung pasar. Sarana cuci tangan sederhana ini diharapkan dapat meningkatkan kesadaran masyarakat tentang pentingnya menjaga kebersihan diri dalam rangka pencegahan penyebaran COVID-19. Sarana cuci tangan tersebut masih dalam kondisi baik setelah empat minggu dan kesadaran masyarakat juga cukup baik yang terlihat dari hasil monitoring dan evaluasi.
Optimization of Composting Growing Media Time and Rice Husk Addition in Auricularia auricula Cultivation Dionysius Subali; Vasya Theodora Givianty; Anastasia Tatik Hartanti; Listya Utami Karmawan
Al-Kauniyah: Jurnal Biologi Vol 16, No 2 (2023): AL-KAUNIYAH JURNAL BIOLOGI
Publisher : Department of Biology, Faculty of Science and Technology, Syarif Hidayatullah State Islami

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15408/kauniyah.v16i2.30991

Abstract

 AbstractAuricularia auricula is a wood mushroom that is commonly consumed and is in demand by the people as a food ingredient because it contains many nutrients and health benefits. Cultivation of A. auricula was carried out using growing media and controlled environmental conditions. This study objective to determine the optimal combination of composting time and the rice husks addition in the A. auricula production. The treatment in this study was the composting time of the growing media for 0, 2, 4, 6, and 8 days, as well as the addition of rice husks as much as 0, 25, and 50%. This research consisted of the preparation of growing media, spawning and incubation of A. auricula, and harvesting of fruit bodies. The success of mushroom cultivation is seen from the value of biological efficiency in each treatment. The combination treatment of 8 days composting time with the addition of 50% rice husk resulted in A. auricula production as much as 52.37%, while the combination of 4 days composting time treatment and the addition of 25% rice husks resulted in the best production of A. auricula, as it produced the mushroom weight of 340 ± 16.95 g with biological efficiency value as much as 68% for five harvest durations within four months after first watering. The treatment of composting media tie and the addition of rice husks to A. auricularia’s were successfully carried out.AbstrakAuricularia auricula merupakan jamur kayu yang umum dikonsumsi dan diminati oleh masyarakat sebagai bahan pangan karena mengandung nutrisi dan banyak manfaat. Budi daya A. auricula dilakukan dengan menggunakan media tanam dalam kondisi lingkungan yang terkontrol. Penelitian ini bertujuan menentukan kombinasi perlakuan waktu pengomposan dan penambahan sekam padi yang optimum terhadap produksi A. auricula. Perlakuan pada penelitian ini adalah waktu pengomposan media tanam selama 0, 2, 4, 6, dan 8 hari, serta penambahan sekam padi sebanyak 0, 25, dan 50%. Penelitian ini tersusun atas pembuatan media tanam, pembibitan dan inkubasi A. auricula, dan pemanenan tubuh buah. Keberhasilan budi daya jamur dilihat dari nilai efisiensi biologi pada setiap perlakuan. Kombinasi perlakuan pengomposan 8 hari dengan penambahan sekam padi 50% menghasilkan produksi A. auricula sebesar 52,37%, sedangkan kombinasi perlakuan waktu pengomposan 4 hari dan penambahan sekam padi 25% menghasilkan produksi A. auricula terbaik karena menghasilkan berat jamur sebanyak 340 ± 16,95 g dengan nilai efisiensi biologi sebesar 68% selama lima durasi panen dengan waktu empat bulan setelah dilakukan penyiraman pertama. Secara keseluruhan, perlakuan waktu pengomposan media dan penambahan sekam padi pada media pertumbuhan A. auricula berhasil dilakukan.