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Detection of Vgsc-L1014F Allele Knockdown-resistance Mutation in Male Culex quinquefasciatus Mahfudhah, Dzikra Nasyaya; Rahmafitria, Fistara Lesti; Hari Sucipto, Teguh; Fauziyah, Shifa; Anggarani, Mirwa Adiprahara; Herdyastuti, Nuniek; Naw, Sin War; Witaningrum, Adiana Mutamsari
HAYATI Journal of Biosciences Vol. 32 No. 6 (2025): November 2025
Publisher : Bogor Agricultural University, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.4308/hjb.32.6.1400-1406

Abstract

The distribution of Culex quinquefasciatus as a vector for several tropical diseases in Indonesia could affect the transmission of various pathogens, including filariasis, West Nile, encephalitis, and Rift Valley fever. The use of insecticides to control mosquito populations is carried out massively. However, this effort is threatened by an increase in mosquito resistance to insecticides, in this case, pyrethroids that target Voltage-gated sodium channel (VGSC) as a complex protein in mosquito nerve cells that plays a role in the movement of sodium ions, where these compounds can have a knockdown effect and lead to death. The existence of a single nucleotide mutation in this specific codon results in knockdown resistance (kdr) in mosquitoes. This study aims to determine whether there is a kdr mutation in the Vgsc-L1014F target using the latest molecular method ETAS-PCR to type tri-allelic variation at Vgsc-1014 in Cx. quinquefasciatus samples collected in three areas in the cities of Surabaya and Sidoarjo, namely Wonocolo, Sukodono, and Wonoayu. The result showed ten male pool samples (C1-C10) of Cx. quinquefasciatus did not carry mutations or present as homozygous wild type (TTT/TTT), with a DNA band size of 181 bp. Hence, this preliminary study could be extended for further research to build vector control monitoring programs.
Antimicrobial effect of Methanol and Ethanol Extracts of Kembang Bulan (Tithonia diversifolia) Leaves against Staphylococcus aureus Plumeriastuti, Hani; Habibi, Muhammad Afif; Tehupuring, Benjamin Christoffel; Effendi, Mustofa Helmi; Estoepangestie, Agnes Theresia Soelih; Sarudji, Suryanie; Witaningrum, Adiana Mutamsari
Media Kedokteran Hewan Vol. 32 No. 2 (2021): Media Kedokteran Hewan
Publisher : Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/mkh.v32i2.2021.97-104

Abstract

The purpose of this study was to determine how Staphylococcus aureus responded to Kembang Bulan (Tithonia diversifolia) leaf extract's antibacterial properties. Eight S. aureus bacterial isolates from three Surabaya dairy farms were used in this study. Tithonia diversifolia leaf extract at concentrations of 10%, 5%, 2.5%, 1.25%, and 0% were employed in the study's samples. The antibacterial activity of Tithonia diversifolia leaf extract was assessed in this work using the disk diffusion method and an inhibition zone estimated in millimeters. Based on the findings of this study, it was determined that Tithonia diversifolia leaf extract at 5% and 10% concentrations had 100% antibacterial activity against S. aureus in eight samples. As with S. aureus, Tithonia diversifolia leaf extract at concentrations of 0%, 1.25%, and 2.5% did not exhibit any antibacterial action.
Co-Authors Achmad Ardianto, Achmad Aurandini, Nailla Ridhani Bambang Sumiarto Bambang Sumiarto Bambang Sumiarto Bambang Sumiarto Benjamin Christoffel Tehupuring, Benjamin Christoffel Budi Utomo Budiarto Budiarto Budiarto Dadik Raharjo Damayanti , Ratna Dian Ayu Permatasari Dian Ayu Permatasari Dian Yuli Reindrawati Dian Yuli Reindrawati Dwi Wahyu Indriati, Dwi Wahyu Eriza Rosalina Rochmah Estoepangestie, Agnes Theresia Soelih Fauziyah , Nafisah Nurti Habibi, Muhammad Afif Hani Plumeriastuti Hastutiek , Poedji Hisyam, Mirza Atikah Madarina Juniastuti Juniastuti Kadek Rachmawati Khalissa Farah Alifia Kirana, Sabila Citra Koesdarto , Setiawan Kusnoto Kusnoto, Kusnoto Lastuti , Nunuk Dyah Retno Lilik Maslachah M. Qushay, M. Mafruchati, Maslichah Mahfudhah, Dzikra Nasyaya Maria Inge Lusida Masanori Kameoka, Masanori Mega, Toafan Satrio Meilani Meilani, Meilani Mirwa Adiprahara Anggarani Mufasirin Muhammad Qushai Yunifiar M, Muhammad Qushai Mustofa Helmi Effendi Nasronudin Nasronudin Naw, Sin War Nuniek Herdyastuti Permatasari, Dian Ayu Poedji Hastutiek Prihartini Widiyanti Raharjo, Hartanto Mulyo Rahmafitria, Fistara Lesti Rahmi Sugihartuti, Rahmi Ratna Damayanti Rekasni Adallin A/P Morgan A/P Morgan Retno Pudji Rahayu Saraswati, Afif Tasya Sarudji, Suryanie Setiawan Koesdarto Shafina Hanum, Farah Shifa Fauziyah Shuhei Ueda, Shuhei Sisda Indah Millenia Kartika Siti Qamariyah Khairunisa, Siti Qamariyah Sri Hidanah Suherni Susilowati Sumardiko, Dwi Setiani Sunarso, Agus Suprihati , Endang Tacharina, Martia Rani Teguh Hari Sucipto, Teguh Hari Tigor Yeheskiel, Tigor Tita Damayanti Lestari Tomohiro Kotaki, Tomohiro Tri Untari Tri Untari Umi Faricha Bascha Umi Farichah Bascha Utama , Suzanita Wardhana, Dhandy Koesoemo Warsito, Sunaryo Hadi Wibisono, Freshinta Jellia Widya Paramita Lokapirnasari Yulianna Puspitasari