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ISOLATION, SCREENING, AND ANTIBACTERIAL ACTIVITY OF ENDOPHYTIC FUNGI ASSOCIATED WITH Acanthus ilicifolius L. IN INHIBITING THE GROWTH OF Methicillin-Resistant Staphylococcus aureus (MRSA) Wiradana, Putu Angga; Anak Agung Ayu Putri Permatasari; I Gede Widhiantara; I Made Wisnu Adhi Putra; Ni Kadek Yunita Sari; Novaria Sari Dewi Panjaitan; Sri Puji Astuti Wahyuningsih; Mochammad Aqilah Herdiansyah
Jurnal Bioteknologi & Biosains Indonesia (JBBI) Vol. 12 No. 2 (2025)
Publisher : BRIN - Badan Riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/jbbi.2025.13090

Abstract

This study examines the phytochemical composition and antibacterial activity of endophytic fungi linked to the mangrove plant A. ilicifolius against methicillin-resistant Staphylococcus aureus (MRSA) in order to determine their bioprospecting potential.  The surface-sterilized root, stem, and leaf tissues of A. ilicifolius yielded endophytic fungi. The workflow consisted of screening for viable isolates, culture under controlled circumstances, and molecular identification of the Internal Transcribed Spacer (ITS) section of fungal rDNA. Antibacterial activity was determined using agar well diffusion tests after extraction with methanol, ethyl acetate, and n-hexane solvent fractions. A total of 31 endophytic fungal isolates were recovered: 9 from roots, 15 from stems, and 7 from leaves. Among these, 5 isolates from roots (16.1%), 8 from stems (25.8%), and 5 from leaves (16.1%) exhibited inhibitory effects against MRSA. Isolate AK5, derived from root tissue, demonstrated the highest antibacterial activity and was molecularly identified as Chaetomium globosum strain NW 24 (Accession No. MN326469.1). The isolate revealed optimal growth at pH 5–6, with the maximum wet mycelial biomass (29.73 g) achieved on day 24 under shaker incubation. The methanol and ethyl acetate fractions had a considerably greater anti-MRSA efficacy than the n-hexane fraction. Phytochemical analysis of the methanolic extract indicated the presence of several bioactive components, including phenolics, tannins, flavonoids, saponins, alkaloids, and terpenoids, indicating that these constituents contribute to the reported antibacterial effects. Overall, our findings highlight the potential of A. ilicifolius-derived endophytic fungi as alternate sources of bioactive compounds for treating antibiotic-resistant infections, specifically MRSA.
PENGARUH PROFITABILITAS, LEVERAGE, FREE CASH FLOW, LIKUIDITAS DAN UKURAN PERUSAHAAN TERHADAP KEBIJAKAN DIVIDEN Sari, Ni Kadek Yunita; Mendra, Ni Putu Yuria
Seminar Ilmiah Nasional Teknologi, Sains, dan Sosial Humaniora (SINTESA) Vol. 8 (2025): PROSIDING SINTESA
Publisher : LPPM Universitas Dhyana Pura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36002/snts.v8i.5220

Abstract

Distribusi laba tidak sekadar persoalan teknis pembagian keuntungan, melainkan cerminan preferensi manajerial dalam menyeimbangkan kepentingan pemegang saham dan kebutuhan pembiayaan internal. Pada sejumlah bank yang tercatat di Bursa Efek Indonesia sepanjang 2022–2024, ekspansi laba dan aset ternyata tidak selalu diterjemahkan menjadi peningkatan dividen. Ketegangan antara kinerja akuntansi dan kebijakan distribusi laba tersebut mengindikasikan bahwa keputusan dividen tidak sepenuhnya digerakkan oleh capaian finansial jangka pendek. Bagi investor, kondisi ini menjadi krusial karena dividen berfungsi sebagai representasi kredibilitas manajemen sekaligus proyeksi keberlanjutan usaha. Dengan memanfaatkan data 18 perusahaan perbankan yang memenuhi kriteria seleksi selama periode pengamatan, hubungan antara karakteristik keuangan dan kebijakan dividen diuji melalui regresi linier berganda. Temuan empiris memperlihatkan bahwa kemampuan menghasilkan laba dan ketersediaan arus kas bebas berperan dominan dalam mendorong pembayaran dividen, sementara struktur pendanaan, tingkat likuiditas, dan skala perusahaan tidak menunjukkan peran yang menentukan. Keterbatasan ruang lingkup tersebut membuka peluang bagi kajian lanjutan untuk melibatkan spektrum emiten yang lebih luas serta memasukkan dimensi peluang investasi, tata kelola, dan tanggung jawab sosial guna memperoleh gambaran yang lebih utuh.
Co-Authors A.A. Ayu Putri Permatasari Adi Sofyan Ansori, Muhammad Adnyana, Gabriel Firsta Afta Daniel Zato Waruwu Anggriani, Martha Sephtia Aprodita, Ni Wayan Seila Aris Jatmiko Aryaswari, Ni Kadek Dwi Liopita Aulia Iefan Datya Buu, Ani Wini Carolina Widyawati Deswiniyanti, Ni Wayan Deswiniyanti Dylla Hanggaeni Dyah Puspaningrum Efendi, I Kadek Eka Jaya Elok Faiqotus Zahra Elok Faiqotus Zahro Endah K, Natalia Sri ENIEK KRISWIYANTI Fimaputra, Jatu Maranatha Fir, Maria Alfira Juita Garry Ganvis Jonteo Hani Gerson Feoh Hanggaeni Dyah Puspaningrum, Dylla Hasanah, Nina Huawatun I Gede Widhiantara I Ketut Junitha I Made Endra Puniawan I Made Gde Sudyadnyana Sandhika I Made Murna I Made Tegeh I Made Wisnu Adhi Putra I Putu Dedy Kastama Hardy I Wayan Rosiana IDA AYU ASTARINI K, Natalia Sri Endah Komang Ayuk Supriani Lestari, Ni Kadek Dwipayana MADE PHARMAWATI Marselinus Gede Widiarta Matius Victorino Ola Dame Mochammad Aqilah Herdiansyah Natalia Sri Endah K Ni Kadek Dwipayani Lestari Ni Kadek Wini Ewintiani Ni Komang Widiastuti Ni Luh Putu Wina Ewiantini Ni Luh Sunarsih Ni Luh Utari Sumadewi Ni Made Virginia Ni Made Wagi Ambakesari Ni Nyoman Ari Mardianti Ni Putu Widya Astuti Ni Putu Yuria Mendra Ni Wayan Deswiniyanti Ni Wayan Nursini Novaria Sari Dewi Panjaitan Panjaitan, Novaria Sari Dewi Permatasari , A.A. Ayu Putri Permatasari , Anak Agung Ayu Putri Permatasari, A. A. Ayu Permatasari Permatasari, Anak Agung Ayu Permatasari, Anak Agung Ayu Putri Permatasari, Anak Agung Ayu Putri Permatasari Putri, Fadillaisyia Riandani Putri, Ni Putu Diah Paramita Putu Angga Wiradana Putu Ayu Tantri Dewi Putu Eka Sudaryatma Rahmadi Prasetijo Rai Riska Resty Wasita Razaq, Imanuddin Rony MahaPutraUmbu Pingge Sandhika, I Made Gde Suadnyana Sri Endah K, Natalia Sri Puji Astuti Wahyuningsih Teguh Hari Sucipto, Teguh Hari Virgilia Gabreni Amleni Waruwu, Ernawati Widiiastuti, Ni Komang Wiradana , Putu Angga