Potential biocontrol agent of indigenous Bacillus sp. EG6.4: Molecular identification, larvicidal toxicity, and mechanism of actions
##plugins.themes.bootstrap3.article.main##
Abstract
Abstract. Salamun, Susetyo RD, Nafidiastri FA, Zain RA, Sari RP, Geraldi A, Fatimah, Ni’matuzahroh. 2022. Potential biocontrol agent of indigenous Bacillus sp. EG6.4: Molecular identification, larvicidal toxicity, and mechanism of actions Biodiversitas 23: 5431-5438. This research was carried out for molecular identification, as well as the determination and mechanism of action of larvicidal toxicity of Bacillus sp. EG6.4 isolated from breeding sites of Aedes aegypti from Gresik, East Java, Indonesia. Bacillus sp. EG6.4 was a Gram-positive endospore-forming bacteria. Molecular species identification using 16S rRNA gene sequencing showed that isolate had 97.89% similarity with Bacillus mojavensis. The isolate showed larvicidal toxicity against A. aegypti larvae. The lethal concentration 50% (LC50) values ??at 24 and 48hours exposure were 8.99±1.01 ×107 cells/mL and 8.43±1.01 ×107 cells/mL, respectively, while lethal time 50% (LT50) value was 11.9±1.1 hours. Production of chitinolytic enzymes or biosurfactants, chitinolytic and hemolytic assays were conducted to determine the larvicidal mechanism. As a result, Bacillus sp. EG6.4 showed hemolytic, but not chitinolytic activity, indicating its potency to produce biosurfactants. Transmission Electron Microscopy (TEM) result showed that isolate had oval-shaped endospores located subterminal with massive-shape parasporal inclusions. The detection of srfA-D gene showed that isolate produced surfactin biosynthesis thioesterase. Thus, Bacillus sp. EG6.4 produced biosurfactant that potentially to be developed as a biocontrol agent for disease vectors and plant pathogens.
##plugins.themes.bootstrap3.article.details##
Most read articles by the same author(s)
- KHADIJAH ALLIYA FIDIEN, BASO MANGUNTUNGI, LINDA SUKMARINI, APON ZAENAL MUSTOPA, LITA TRIRATNA, FATIMAH, KUSDIANAWATI, Diversity analysis, identification, and bioprospecting of Lactic Acid Bacteria (LAB) isolated from Sumbawa horse milk , Biodiversitas Journal of Biological Diversity: Vol. 22 No. 6 (2021)
- ALMANDO GERALDI, CHIA CHAY TAY, NI’MATUZAHROH, FATIMAH, WAN NURHAYATI WAN HANAFI , Unraveling the bacterial diversity of Cangar Hot Spring, Indonesia by Next Generation Sequencing of 16S rRNA gene , Biodiversitas Journal of Biological Diversity: Vol. 22 No. 9 (2021)
- BQ. MUTMAINNAH, AFAF BAKTIR, NI’MATUZAHROH, Characteristics of Methicillin-Resistant Staphylococcus aureus (MRSA) and Methicillin Sensitive Staphylococcus aureus (MSSA) and their inhibitory response by ethanol extract of Abrus precatorius , Biodiversitas Journal of Biological Diversity: Vol. 21 No. 9 (2020)
- BASO MANGUNTUNGI, DINAR SUKSMAYU SAPUTRI, APON ZAENAL MUSTOPA, NURLAILI EKAWATI, CHAIRUL ANAM AFGANI, ARLINDA PUSPITA SARI, LITA TRIRATNA, LINDA SUKMARINI, FATIMAH, AMIRIN KUSMIRAN, SAHRI YANTI, SHASMITA IRAWAN, MUHAMMAD DWI PRASETYO, KHADIJAH ALLIYA FIDIEN, Metagenomic analysis and biodiversity of Lactic Acid Bacteria (LAB) on masin (fermented sauce) from Sumbawa, West Nusa Tenggara, Indonesia , Biodiversitas Journal of Biological Diversity: Vol. 21 No. 7 (2020)
- FAUZIYAH, APON Z. MUSTOPA, FATIMAH, ANNA I. S. PURWIYANTO, ROZIRWAN, FITRI AGUSTRIANI, WIKE A.E. PUTRI, Morphometric variation of the horseshoe crab Tachypleus gigas (Xiphosura: Limulidae) from the Banyuasin estuarine of South Sumatra, Indonesia , Biodiversitas Journal of Biological Diversity: Vol. 22 No. 11 (2021)
- NI’MATUZAHROH NI’MATUZAHROH, SILVIA KURNIA SARI, IRINE PUSPA NINGRUM, APRILLA DILA PUSFITA, LISA MARJAYANDARI, NASTITI TRIKURNIADEWI, SYAHRIAR NUR MAULANA MALIK IBRAHIM, FATIMAH FATIMAH, TRI NURHARIYATI, TINI SURTININGSIH, HANIF YULIANI, The potential of indigenous bacteria from oil sludge for biosurfactant production using hydrolysate of agricultural waste , Biodiversitas Journal of Biological Diversity: Vol. 20 No. 5 (2019)
- NENGAH DWIANITA KUSWYTASARI, ALFIA R KURNIAWATI, NUR HIDAYATUL ALAMI, ENNY ZULAIKA, MAYA SHOVITRI, KYU MIN OH, NI NYOMAN TRI PUSPANINGSIH, NI’MATUZAHROH NI’MATUZAHROH, Short Communication: Plastic degradation by Coriolopsis byrsina, an identified white-rot, soil-borne mangrove fungal isolate from Surabaya, East Java, Indonesia , Biodiversitas Journal of Biological Diversity: Vol. 20 No. 3 (2019)
- FARAH AISYAH NAFIDIASTRI, RIZKY DANANG SUSETYO, TRI NURHARIYATI, AGUS SUPRIYANTO, ALMANDO GERALDI, NI’MATUZAHROH, FATIMAH, SALAMUN, Biosurfactant activity of indigenous Bacillus sp. ES4.3 isolated from endemic breeding sites of dengue hemorrhagic fever vector in Surabaya, East Java, Indonesia , Biodiversitas Journal of Biological Diversity: Vol. 22 No. 12 (2021)
- MUSTOFA HELMI EFFENDI, HAYYUN DURROTUL FARIDAH, FRESHINDY MARISSA WIBISONO, FRESHINTA JELLIA WIBISONO, NABILATUN NISA, FATIMAH, EMMANUEL NNABUIKE UGBO, Detection of virulence factor encoding genes on Escherichia coli isolated from broiler chicken in Blitar District, Indonesia , Biodiversitas Journal of Biological Diversity: Vol. 23 No. 7 (2022)