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Novri Youla Kandowangko
Universitas Negeri Gorontalo
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PERBANDINGAN BERKAS PENGANGKUT DAN STOMATA PADA JAGUNG LOKAL GORONTALO ladoma, wafiq aziza m.; Kandowangko, Novri; Febriyanti; Ahmad, Jusna; Ahmad, Aisyah
BIOMA: Jurnal Biologi dan Pembelajarannya Vol 7 No 1 (2025): BIOMA : Jurnal Biologi dan Pembelajarannya
Publisher : Universitas Sulawesi Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31605/bioma.v7i1.4985

Abstract

Provinsi Gorontalo merupakan daerah penghasil jagung (Zea mays L.) di Indonesia, diantaranya jagung varietas unggul dan jagung lokal. Jagung lokal Gorontalo memiliki kenampakan morfologi yang hampir mirip, terutama jagung doti dan siropu. Perbedaan dari jagung lokal ini diantaranya dapat dilihat pada warna tongkol, warna batang dan bentuk biji. Secara anatomi memiliki perbedaan dalam ukuran berkas pengangkut batang, daun, dan jumlah stomata pada jagung doti dan siropu pada berbagai usia. Penelitian ini membandingkan berkas pengangkut batang, daun, tipe stomata dan jumlah stomata tanaman jagung doti dan siropu lokal Gorontalo pada berbagai usia. Tujuan dari penelitian ini adalah membandingkan berkas pengangkut batang,daun, tipe stomata dan jumlah stomata tanaman jagung doti dan siropu lokal Gorontalo pada berbagai usia. Indikator yang diamati dalam penelitian ini perbandingan berkas pengangkut batang,daun, tipe stomata dan jumlah stomata tanaman jagung doti dan siropu lokal Gorontalo pada berbagai usia. Hasil penelitian ini menunjukkan adanya perbedaan yang signifikan dalam struktur jaringan berkas pengangkut batang, daun jagung doti dan siropu pada berbagai umur yang berbeda menunjukkan adanya adaptasi dalam transportasi air, dan nutrisi. Stomata pada jagung doti dan siropu ditemukan di dikedua sisi daun adaksial (atas) dan abaksia (bawah) daun, dengan tipe stomata graminae.
Actinomycetes from Plant Rhizosphere in Gorontalo Karst Area as Plant Growth Promoting Rhizobacteria Matalauni, Citra Leonita; Retnowati, Yuliana; Katili, Abubakar Sidik; Kandowangko, Novri Youla; Hasan, Ani M.
Biology, Medicine, & Natural Product Chemistry Vol 14, No 2 (2025)
Publisher : Sunan Kalijaga State Islamic University & Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14421/biomedich.2025.142.1047-1053

Abstract

This study aimed to describe Actinomycetes from the rhizosphere of plants in the Gorontalo karst area as Plant Growth Promoting Rhizobacteria (PGPR). The research method is based on a quantitative descriptive method. Soil samples from the rhizosphere were collected using a purposive sampling technique from 8 plant species at two locations in the Gorontalo karst region, namely the Tanjung Kramat Hills. The characteristics of PGPR in this study focused on phosphate solubilization ability, Indole Acetic Acid (IAA) production, antagonism against the fungus Fusarium oxysporum, and tolerance to fungicides. Potential PGPR isolates were analyzed for phylogenetic relationships based on 16S rRNA gene sequences. The results showed that there were 6 actinomycetes isolates (RzHKC-01, RzKO-02, RzO-03, RzAK-04, RzPK-05, and RzOC-06) from 8 plant species in the Gorontalo karst region. One actinomycetes isolate, RzPK-05, showed potential as a PGPR with the ability to solubilize phosphate and produce IAA at 0.165 mg/L and 0.133 mg/L, respectively. Isolate RzPK-05 exhibited antagonistic properties against Fusarium oxysporum with an inhibition rate of 82.24% and was tolerant to fungicides such as Captive, Benlate, and Thiramo up to a concentration of 100 mg/L. Molecular analysis based on the 16S rRNA gene and phylogenetic tree reconstruction indicated that the RzPK-05 isolate is closely related to the genus Streptomyces with 100% similarity.
Co-Authors Abubakar Sidik Katili Abubakar Sidik Katili Adju, Fitria Y.Hs. Ahaya, Cindi Ahmad Hidayat Ahmad, Aisyah Akbar, Muh Nur Alfandi Kibu Ali, Fathur Rahman M. Andi Pratiwi Andi Pratiwi Ani Hasan, Ani Aryati Abdul Aryati Abdul Bakari, Iswanto Bambang Mamangkay Bulowe, Yuniarty R Chairunnisa Lamangantjo Cono, Titi Hawanda Metania Dali, Ira K. Damopolii, Insar Devi Bunga Pagalla Devi Bunga Pagalla Dewi Wahyuni K. Baderan Djafar, Fitri Yani Djuna Lamondo Dunggio, Fadlia Elawati, Elawati Elya Nusantari Fathur Rahman M. Ali Fatmariani Abdul Wahab Febriyanti Febriyanti , Febriyanti febriyanti febriyanti Febriyanti Febriyanti Febriyanti Febriyanti Frida Maryati Yusuf GIAT SURYATMANA Gintulangi, Sabriana Oktaviana Gogou, Elsi Hamzah B Uno HASAN, ANI M. Husain, Holiyana Husain, Ilyas H. Ilyas Husain Indri Meliyani Bouta Indriati Husain Isima , Lindawaty Jan Hendriek Nunaki Jusna Ahmad Kadita P. Latif Keley, Umar Keley, Umar Labuga, Falerins ladoma, wafiq aziza m. Lamatenggo, Nina Lindawaty Isima Margaretha Solang Marini Susanti Hamidun Masra Latjompoh Matalauni, Citra Leonita Miftahul Fikriyah Adudu Muchtar Ahmad Muh. Nur Akbar Mukhlisulfatih Latief Mustamin Ibrahim Mustaqimah, Nur NENNY NURLAENY Nurdin Nuryanti Rumalolas Pagala, Devi Bunga Pagalla , Devi Bunga Pakaya, Melisa Patta Sija Putri, Tarissa Eka Rahman, Iyam Rahwilin Van Gobel Ramli Utina Rampi Yusuf Rianjani, Devi Tutut Rianjani, Devi Tutut Rinna Amelia Polihito Rizal Suleman Rizaldi Mokodompit ROBERT DJONGGI MARULI SIMANUNGKALIT Rosely, Meilin S. Y. Sahat Patar Lumban Gaol Saifullah Mamonto Suwarni Karim Syafar, Sitti Zaenab Tadidik, Ulfaida H. Ui, Maryam Walangadi, Farhana Rahmatia Wilinda A. Datau Wirnangsi Din Uno Wirnangsih D. Uno Yelsi Patiung Yuliana Nurdian Toini Yuliana Retnowati Yumna Binti Abud Alamri Yusrin Anton Puluhulawa Zuliyanto Zakaria Zusriadi, Brenda Febrina