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Journal : Microbiology Indonesia

Chemotactic Motility and Growth of Pseudomonas fluorescens Towards Glucose Concentration ENDAH ROSA; UMMI MARDHIAH BATUBARA; SUPARJO SUPARJO
Microbiology Indonesia Vol. 13 No. 2 (2019): June 2019
Publisher : Indonesian Society for microbiology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1510.276 KB) | DOI: 10.5454/mi.13.2.1

Abstract

Pseudomonas fluorescens is plant growth promoting rhizobacteria (PGPR) often inoculated on plants as natural biocontrol agent capable of protecting the plants from soil-borne pathogens. Chemotactic motility allows populations of P. fluorescens to rapidly search for nutrients and is an important factor determining their competitive success to colonize plant root. Therefore, we investigated various glucose concentrations from 0% to 1% (w/v) to enhance chemotactic motility and growth of this rhizobia. Chemotactic motility was evaluated using swim plate assay and bacterial growth was measured using UV-Vis Spectrophotometer in LB and M9 medium. Glucose with low concentration (0.05%) showed to have optimum response in P. fluorescens chemotactic motility with colony diameter 38.3 mm in LB medium and 12.8 mm in M9 medium. Highest growth of P. fluorescens was seen in control condition of LB medium reaching a peak at 0.0246 OD600 (~±1,44x107 CFU ml-1 ) while growth in M9 medium supplemented with 1% glucose was just slightly lower with 0.0227 OD600 (~±1,32x107 CFU ml-1). Glucose in high concentration showed to repress chemotactic motility and first growth phase of P. fluorescens in LB medium due to catabolite repression.
Co-Authors Alfarisy, M. Phyto Alicia Mulya Maharani Anggelina, Anggelina Anisa Anisa Azahra, Mutiara Mindy Bambang Haryadi Batara, Lamun Bernadi, Haryo Jati Bulan Sabina Bunga Mulia Bunga Nanda Sari Defitra, Hersa Javayu Delvi, Ayu Dina Aulia Rifdah Efriyeldi, Efriyeldi Eko Pujianto Eko Pujianto Elly Nur Agustin ENDAH ROSA Esti Nur Rahayu Esti Nur Rahayu Fahmil Maulana Farhan Rio Afdholy Farisy, Muhammad Fhito Al Feliatra Feliatra, Feli Feliatra, Pamela Isya Finayeva, Novlina Fitratul Aini, Fitratul Fitri, Sri Afifah Ghazali, Tengku Muhammad Gustina, Julia Hasnaul Maritsa Herlina, Meli Herlini, Meli Hesti Riany Iesje Lukistyowati Iesje Lukystiowati Ihsan, Mahya Ika Oksi Susilawati Irsat Hanif Irwan Effendi Irwan Irwan Kartini Kartini Lamun Batara Lazuardi Lazuardi Lazuardi Umar Madyawati Latief Manurung, Manta Mentari Mardalisa, Mardalisa Maulina Amiza Yunita Melanie Dyas Puteri Meli Herlini Muhamad Habbil.H Muhammad Arief Wibowo Muhammad Fadhli Alfikri Nabilah Amini Hasibuan Nanda Fahmuin Tari Nasution, Nisfi Maulidia Nur Fadhilah Ilyas Nursyirwani, Nursyirwani Pani Pransiska Putri Pipin Kurnia Pipin Kurnia Putri, Resty Fauziah Rachana, Kong Ramadhani Putri Rayhan Maulana Risky Ayu Kristanti Risma Rita Wijaya Safira Khairunnisa Selvi Andriani Situmorang, Novita Suparjo Suparjo Suparjo Suryadi Saputra Suryadi Saputra Syahputri, Rara Vania Syamsiar, Syamsiar Teguh Sumarsono Tengku Muhammad Ghazali Tengku Rany Oktaviany Tengku Rany Oktaviany Thamrin Thamrin Trisla Warningsih Wahyuni, Inka Wibowo, Muhammad Arif Wijaya, Rita Winda Dwi Kartika, Winda Dwi Winda Dwi Setiawati Yoswaty\, Dessy Yusni Ikhwan Siregar Zevira, Bella Permata