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Journal : Microbiology Indonesia

Diversity of Lactic Acid Bacteria Isolated from Indonesian Traditional Fermented Foods APON ZAENAL MUSTOPA; FATIMAH FATIMAH
Microbiology Indonesia Vol. 8 No. 2 (2014): June 2014
Publisher : Indonesian Society for microbiology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (391.524 KB) | DOI: 10.5454/mi.8.2.2

Abstract

The diversity of lactic acid bacteria was evaluated from Indonesian fermented foods such as dadih (buffalo fermented milk), tempoyak (fermented durian), bekasam (fermented meat), and tape ketan (fermented glutinous rice). Lactic acid bacteria were enumerated using selective media and characterised based on a genotypic methods such as rep- PCR and RAPD-PCR, as well as 16S rRNA gene sequencing of representative strains. Forty-six colonies had successfullybeen isolated from Indonesian fermented foods. The great majority of these colonies originated from dadih (43.48%), tempoyak (39.13%), bekasam (13.04%) and tape (4,3%). The 46 isolates were characterised based on a genotypic methods such as RAPD and rep-PCR as well as 16S rRNA gene sequencing of representative strains. The rep-PCR result yielded seven clusters (I-VII) at a similarity level of 75-88% and RAPD-PCR used LB2 primer, M13 primer and primer A, B, C. The RAPD result using LB2 primer yielded eight clusters (I-VIII) at a similarity level of 82-91%. Identification using 16S rRNA showed that the majority strains as Lactobacillus plantarum, Lactobacillus fermentum and Pediococcus pentosaceus strains.
Identification and characterization of virulence factor of several Indonesian Xanthomonas oryzae pv. oryzae FATIMAH FATIMAH; APON ZAENAL MUSTOPA; IQBAL KUSNANDARSYAH
Microbiology Indonesia Vol. 8 No. 3 (2014): September 2014
Publisher : Indonesian Society for microbiology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (379.262 KB) | DOI: 10.5454/mi.8.3.3

Abstract

Xanthomonas oryzae pv. oryzae (Xoo) is the bacterial causative agent of leaf blight in rice (Oryza sativa L.), the most serious bacterial disease of rice in many rice growing areas worldwide. This study aimed to identify and characterize several virulence factors of seven Xoo isolates from Yogyakarta, West Java, and West Sumatera. The identification of Xoo using 16S rRNA confirmed high homology to Xanthomonas oryzae pv. oryzae PXO99A and revealed three groups. The first group was Xoo93229, the second group containing Xoo1110, Xoo1122, Xoo1130, Xoo7624 and Xoo8024 as the same cluster with PXO99A and the third group was KACC10331 and MAFF311018. The amounts of exopolysaccharide (EPS) and cellulase produced were varying depending on the Xoo isolates. The EPS were produced more by isolate Xoo1130, Xoo1122 and Xoo8024. All tested isolates revealed similar cellulase activity except for isolate Xoo8024. The pathogenicity assay among the Xoo isolate showed that all tested isolates were virulent except Xoo7624. The in planta assay revealed that the tested isolates have multiplied and continued increasing the population size except for Xoo1110 and Xoo7624. High yield of EPS, cellulase activity, more virulence, and increasing population size revealed from isolate Xoo1130 and Xoo1122.
Co-Authors Abd. Rasyid Syamsuri Abdul Majid Agus Salim Agus Subagio Ahmad Al Yakin Ahmad Syamsul Falah Akrom, Akrom Al Hussein Flowers Rizqi Amelia Sari Amri Amri Anna Musyarofah Annisaa’ Nurmasari APON ZAENAL MUSTOPA Arisara Leksansern Arniah Arniah Arum Ariasih As'ad As'ad Asrid Juniar Ayu Khairani Azhari Ahmad Berwi Fazri Pamudi Choiriyah Choiriyah Christin Natalia Meiditasari Darmalinda Darmalinda Dedi Purnomo Defri Aroni Deri Apriliyani Dewi Purnamawati Diana Khairani Sofyan Dicky Ardianto Eka Rahmawati Endang Sulistyaniningsih Ernanda Saputri Eva Darnila Fandhilah Fandhilah Febriansyah Nataly Febrina Suci Hati Febryanti Febryanti Fil Isnaeni Fitriani Fitriani Gatot Murti Wibowo Guntur Trimulyono Hanung Adi Nugroho Hasbi Wahyudi Hermina Sukmaningtyas Herning Dyah Kusuma Wijayanti IQBAL KUSNANDARSYAH Ira Puspitasari Irawati Hi. Malan Ivan Muhammad Agung Jamaludin Jamaludin Jamilah Jamilah Karyadi Karyadi Khairun Inayah Aliah Leli Yanti Lis Suswati Lis Suswati Lomba Sultan Luh Putu Ratna Sundari M Sayuti M Taufiq M Taufiq M. Nurdin Marini Marini Maryana Maryana Meila Nur Syamsiani Mirra Noor Milla Mizna Sabila Muhamad Ramli Muhammad Fadhli Ritonga Muhammad Fatih Qodri Muhammad Ilyas Muhammad Nadir Muhammad Nordiansyah Muhammad Ridwansyah Muhammad Rivai MUHAMMAD SUBHAN Muhammad Subhan Muhtar Tajuddin Nasrun Nasrun Neli Husniawati Neni Susilaningsih Nia Astarina Setyaningsih Nita Zahara Nurfadhilah Nurnaningsih Nurnaningsih Nurulita Nurulita Nuslima Nuslima Omar Hendro Ratna Dewi Kartikasari Retti Ninsix rifni novitasari Rina Hardianti Ronny Malavia Mardani Rousyati Rousyati Rusli Malli Ryan Aryani Saprudin Saprudin Sharfina Putri Utami Siti Zubaidah St. Syamsudduha Sugiyanto Sugiyanto Suryono Suryono Susi Ernawati Syaiful Rachman Tantio Fernando Ujang Sumarwan Ulfa Dwi Alvionita Ulfa Ulfa USWATUN KHASANAH Veronika Setyadji Vilman Sidik Vinni Harianti Welly Welly Yoyon Dwi Wahyono Yuli Purnamasari Yus’iran Yus’iran Zulfiani Zulfiani Zunaidah Zunaidah ZURAIDA ZURAIDA