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Journal : Bioeksperimen

Morphological and genetic identifications of Spirulina based on 16S rRNA gene Dito, Bahana Safiria; Sajidan, Sajidan; Susilowati, Ari; Sidiq, Yasir
Bioeksperimen: Jurnal Penelitian Biologi March 2026
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/bioeksperimen.v12i1.14879

Abstract

Spirulina is a microalga with spiral or linear trichome shapes that has potential in industrial and food sectors due to its rich nutritional content. Spirulina can live in various aquatic habitats with different environmental conditions. Differences in cultivation environments can affect the morphological characteristics of Arthrospira due to phenotypic plasticity, making morphology-based identification prone to errors. Therefore, molecular identification using the 16S rRNA gene for phylogenetic analysis is necessary. This study aims to identify and analyze the genetic relationships of Spirulina from freshwater and brackish water based on 16S rRNA gene sequences. Freshwater Spirulina samples were taken from Bogor (BGR) and Yogyakarta (MRP), while brackish water Spirulina was taken from Jepara (JPR). DNA extraction was performed using the Zymo Research Quick-DNA Fungal/Bacterial Miniprep Kit, amplification of the 16S rRNA gene was conducted through PCR, followed by DNA sequencing. Phylogenetic analysis was carried out using MEGA11 to construct the phylogenetic tree. The morphology of strains BGR and MRP showed straight and thin filaments, whereas JPR had spiral and relatively long filaments. Sequencing analysis results showed that strains JPR and MRP had the closest homology similarity to Arthrospira sp. IAQUASC-C0001 with percentages of 99.34% and 99.12%, respectively. Meanwhile, Spirulina from BGR had the closest homology similarity to Arthrospira fusiformis strain AICB 668 with a percentage of 99.78%. Phylogenetic analysis indicated that strains BGR, JPR, and MRP are more closely related to Arthrospira than to Limnospira.
Co-Authors 'Azmi, Abidah Ulul A.A. Ketut Agung Cahyawan W Adilla Nur Azizah Adilla Nur Azizah Adityaradja, Bagas Alanindra Saputra Alanindra Saputra Alanindra Saputra Alanindra Saputra Alanindra Saputra Anatri Desstya Anggita Juniar Laspartriana Anggun Dwi Nur Annisa Anhari, Minhatul Ulya Anisa, Rizka Sakinatun Anjani, Nofa Annur Indra Kusumadani Apriliana, Cindi Dila ARI SUSILOWATI Ariyanti, Olivia Puja Arum Dyah Ripdiyanti Astuti, Dyah Auladiyah, Alfia Sa'adul Aurelia, Fanisha Azizah, Adilla Nur Bambang Harmanto, Bambang Bambang Sumardjoko Baskoro Adi Prayitno Baskoro Adi Prayitno Bowo Sugiharto Bowo Sugiharto Bowo Sugiyarto BUDI SETIADI DARYONO Condro Nur Alim D Djumadi Daryono, Budi S Dedi Gunawan Defina Anggita Silviani Devary Pradana Setyabudi Dewianty, Ratih Dicky Eka Prasetya Dito, Bahana Safiria Donny Widianto Donny Widianto Dyah Astuti Erma Musbita Tyastuti Erma Musbita Tyastuti Erma Musbita Tyastuti Erma Musbita Tyastuti Erma Musbita Tyastuti Evi Dwi Kartikasari Fadilah, Fari Fari Fadilah Febrianti, Nisa Febriyanti, Vika Gamal Abdul Nasir Zakaria Ganno Tribuana Aji Guntur Nurcahyanto Haq, Muhammad Izzul Hardianto, Alden Ganendra Madhava Priya Hariyatmi Hariyatmi Hartanto, Nadhifah Riski Harun Joko Prayitno Haryanto Haryanto Heri Siswanto Hernawan Sulistyanto Ihsan Nugroho Irfadhila, Dwega Izzatul Azmi Mulya Jakia, Nikmatu Jamil, Nazia Jumadi Jumadi Junita Dwi Wardhani Kistantia Elok Mumpuni Kistantia Elok Mumpuni Kun Harismah Listy Hasti Mandiri Mandiri, Listy Hasti Maryana, Windri Masir, Rizkya A. Mauly Halwat Hikmat Mazwar Ismiyanto Miftakhul Huda Miftakhul Huda Minallah, Aldin Nasrun Muammar Fawwaz Muhammad Izzul Haq Muhammad Nizar Muhammad Noor Kholid Muhammad Samsuri Muhammad Syahriandi Adhantoro Munawaroh , Rima Muslimawati, Dinny Patria Nabila Fitriyani Nanang Mulyana, Nanang Naufal Ishartono Naufal Ishartono Ningtyas, Yoga Dwi Windy Kusuma Ninik Nihayatul Wahibah Ninik Nihayatul Wahibah Nurhidayat Nurhidayat Nurul Hikmah Kartini Oktiatama, Firlana Bakti PUGUH KARYANTO Puguh Karyanto Puguh Karyanto Purnomo Purnomo Purnomo Purnomo Purwono , Bambang Putri Agustina Putri Agustina Putri Agustina Putri Agustina Putri Salwa Salsabilla Putri, Wiffy Zalina Rahayu, Triasuti Ratih Dewianty Ratnasari Diah Utami Rika Dini Saputri Risnasari, Wanda Datik Rizko Hadi Rizko Hadi, Rizko Rosyada, Alya Nugrahaeni Sabar Narimo Sabdina, Berlian Achya Putri Sajidan Sajidan Santhyami Santhyami Sari , Banuwati Kartika Seno, Hernandito Aryo Septinawati, Septinawati Setyabudi, Devary Pradana Sigit Dwi Maryanto Sigit Dwi Maryanto Sigit Dwi Maryanto Silviani, Defina Anggita Siti Kartika Sari Siti Nur Syarifah Siti Nur Syarifah Siti Nuraini Siti Nurjanah Sofyan Anif Sri Katoningsih Sri Sat Titi Hamranani Suparti Suparti Suparti Suparti Suparti Suparti Suryawati, Andari Tri Sutama Syarifah, Siti Nur Temon Bagus Hidayatullah Triastuti Rahayu Trio Ageng Prayitno, Trio Ageng Tyastuti, Erma Musbita Ulya, Nuriya Hazma Arifatul Vika Manda Putri Widi Widayat Yusnita Rahmawati Zainal Arifin Zakaria, Gamal Abdul Nasir Zulperi, Dzarifah