Article Per Year (5 Year)
p-Index From 2021 - 2026
0
P-Index
This Author published in this journals
All Journal Biodiversitas Journal of Biological Diversity
Wellyzar Sjamsuridzal
Department of Biology, Faculty of Mathematics and Natural Sciences, Universitas Indonesia. Jl. Prof. DR. Sudjono D. Pusponegoro, Kampus UI Depok, Depok 16424, West Java, Indonesia
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

 1 
Cellulolytic enzyme-producing thermophilic Actinobacteria isolated from the soil of Cisolok Geysers, West Java, Indonesia PUTRI PRATIWI SETYANINGSIH; FITRIA NINGSIH; MAZYTHA KINANTI RACHMANIA; WINDA AYU SYAFITRI; DHIAN CHITRA AYU FITRIA SARI; SHUHEI YABE; AKIRA YOKOTA; ARIYANTI OETARI; Wellyzar Sjamsuridzal
Biodiversitas Journal of Biological Diversity Vol. 20 No. 11 (2019)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d201105

Abstract

Abstract. Setyaningsih PP, Ningsih F, Rachmania MK, Syafitri WA, Sari DCAF, Yabe S, Yokota A, Oetari A, Sjamsuridzal W. 2019. Cellulolytic enzyme-producing thermophilic Actinobacteria isolated from the soil of Cisolok Geysers, West Java, Indonesia. Biodiversitas 20: 3134-3141. This study investigated 17 thermophilic Actinobacteria isolated from the soil of geysers in the Cisolok geothermal area, West Java, as potential producers of cellulase. Screening for cellulase was performed on minimal (Mm) agar medium with and without the addition of 1% (w/v) carboxymethylcellulose (CMC) and microcrystalline cellulose (MCC), then incubated at 45, 50, 55 and 60°C for up to 7 days. Formation of clear zones around colonies indicated cellulose hydrolysis. The results showed that 15, 14, 4, and 3 isolates showed cellulolytic activity on CMC agar medium at 45, 50, 55, and 60°C, respectively, after 7 days of incubation. Three potential isolates showed cellulolytic activity on MCC agar medium after being incubated for 7 days at 45°C. Molecular identification based on the 16S rRNA gene was performed for three isolates with positive cellulolytic activity at 60°C. The results showed that the three isolates are closely related to Actinomadura keratinilytica WCC-2265T with 99.93-100% sequence similarities. A phylogenetic tree based on 16S rRNA gene sequences confirmed that the three isolates were clustered together with Actinomadura keratinilytica WCC-2265T with 100% bootstrap value. The tree also showed that cellulase producers and non-cellulase producers in Thermomonosporaceae are grouped into different clades.
Potential secondary metabolite biosynthetic gene clusters and antibacterial activity of novel taxa Gandjariella Fitria Ningsih; Dhian Chitra Ayu Fitria Sari; Shuhei Yabe; Akira Yokota; Wellyzar Sjamsuridzal
Biodiversitas Journal of Biological Diversity Vol. 21 No. 12 (2020)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d211225

Abstract

Abstract. Ningsih F, Sari DCAF, Yabe S, Yokota A, Sjamsuridzal W. 2020. Potential secondary metabolite biosynthetic gene clusters and antibacterial activity of novel taxa Gandjariella. Biodiversitas 21: 5674-5684. Microbial resistance to available antibiotics has gained increasing attention in recent years and led to the urgent search for active secondary metabolites from novel microbial taxa. This study aimed to assess putative secondary metabolite biosynthetic gene clusters (BGCs) in the genome of a novel thermophilic Actinobacteria type strain Gandjariella thermophila SL3-2-4T and screen for its antibacterial activity. Four other related novel candidate Actinobacteria strains, isolated from forest soil in the Cisolok geothermal area (West Java, Indonesia), were also screened for antibacterial activity in various media solidified with gellan gum. The genome of the SL3-2-4T strain contained 21 antiSMASH-identified secondary metabolite regions harboring BGCs. These BGCs were for polyketide synthase, non-ribosomal peptide synthase, and ribosomally synthesized and post-translationally modified peptide family clusters. Three BGC regions displayed 50-100% similarity with known secondary metabolites. Thirteen and five regions displayed low (4-35%) and no similarity with known BGCs for secondary metabolites, respectively. Strains SL3-2-4T and SL3-2-7 on MM 2 medium solidified with gellan gum at 45 °C for 14 days demonstrated inhibitory activity against all Gram-positive, but not Gram-negative bacteria. Strain SL3-2-10 on ISP 3 gellan gum medium incubated for seven days only active against K. rhizophila NBRC 12078. Strains SL3-2-6 and SL3-2-9 did not exhibit any antibacterial activity against the tested bacterial strains on the three tested media. The results indicated that novel taxa have the potential for the discovery of active secondary metabolites.
Co-Authors AKIRA YOKOTA Akira Yokota ARIYANTI OETARI Dhian Chitra Ayu Fitria Sari DHIAN CHITRA AYU FITRIA SARI Fitria Ningsih FITRIA NINGSIH MAZYTHA KINANTI RACHMANIA PUTRI PRATIWI SETYANINGSIH SHUHEI YABE Shuhei Yabe WINDA AYU SYAFITRI