Screening and formulation of novel carriers for Xanthomonas bacteriophage to control bacterial leaf blight disease

: This study was aimed to evaluate the potential of several carriers to formulate the phages and retain their activity under various pH and temperature conditions. Methodology and results: The skim milk, rice flour, corn flour and CalnuXan (calcium and magnesium) as carriers to formulate the isol...

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Main Authors: Liu, Jian, Wang, Huiling, Chia, Suet Lin, Tan, Geok Hun
Format: Article
Published: Malaysian Society of Microbiology 2022
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author Liu, Jian
Wang, Huiling
Chia, Suet Lin
Tan, Geok Hun
author_facet Liu, Jian
Wang, Huiling
Chia, Suet Lin
Tan, Geok Hun
author_sort Liu, Jian
collection UPM
description : This study was aimed to evaluate the potential of several carriers to formulate the phages and retain their activity under various pH and temperature conditions. Methodology and results: The skim milk, rice flour, corn flour and CalnuXan (calcium and magnesium) as carriers to formulate the isolated phage to maintain its activity under extreme pH and temperature conditions. Two phages formulated with carriers retained their viability at pH 5, pH 7 and pH 9 compared to that of the unformulated phages. Besides, the formulated phages also retained a high titre compared to the unformulated phages when they were exposed to 37 °C and 45 °C. Based on the in vitro study of the formulation, it was applied in the glass house. The plant height, leaf chlorophyll and disease scoring were recorded and analyzed. In the glass house, the rice plant treated with formulated phages showed higher plant height and chlorophyll content than those treated with unformulated or untreated phages. Nonetheless, both formulated and unformulated protected the rice plant, which showed lower disease severity than the untreated group. Conclusion, significance and impact of study: Phage therapy has been used for treating plant diseases caused by pathogenic bacteria. Despite their effectiveness in killing the pathogen in vitro, the results were not reproducible in the field. Bacteriophages (phages) are sensitive to environmental factors and infection efficiency was dropped when exposed to harmful environments. However, this study successfully formulated two novels Xanthomonas phages, as biocontrol agents against bacterial leaf blight (BLB) disease in rice.
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spelling upm.eprints-1031412023-12-05T04:03:33Z http://psasir.upm.edu.my/id/eprint/103141/ Screening and formulation of novel carriers for Xanthomonas bacteriophage to control bacterial leaf blight disease Liu, Jian Wang, Huiling Chia, Suet Lin Tan, Geok Hun : This study was aimed to evaluate the potential of several carriers to formulate the phages and retain their activity under various pH and temperature conditions. Methodology and results: The skim milk, rice flour, corn flour and CalnuXan (calcium and magnesium) as carriers to formulate the isolated phage to maintain its activity under extreme pH and temperature conditions. Two phages formulated with carriers retained their viability at pH 5, pH 7 and pH 9 compared to that of the unformulated phages. Besides, the formulated phages also retained a high titre compared to the unformulated phages when they were exposed to 37 °C and 45 °C. Based on the in vitro study of the formulation, it was applied in the glass house. The plant height, leaf chlorophyll and disease scoring were recorded and analyzed. In the glass house, the rice plant treated with formulated phages showed higher plant height and chlorophyll content than those treated with unformulated or untreated phages. Nonetheless, both formulated and unformulated protected the rice plant, which showed lower disease severity than the untreated group. Conclusion, significance and impact of study: Phage therapy has been used for treating plant diseases caused by pathogenic bacteria. Despite their effectiveness in killing the pathogen in vitro, the results were not reproducible in the field. Bacteriophages (phages) are sensitive to environmental factors and infection efficiency was dropped when exposed to harmful environments. However, this study successfully formulated two novels Xanthomonas phages, as biocontrol agents against bacterial leaf blight (BLB) disease in rice. Malaysian Society of Microbiology 2022 Article PeerReviewed Liu, Jian and Wang, Huiling and Chia, Suet Lin and Tan, Geok Hun (2022) Screening and formulation of novel carriers for Xanthomonas bacteriophage to control bacterial leaf blight disease. Malaysian Journal of Microbiology, 18 (5). 490 - 504. ISSN 1823-8262; ESSN: 2231-7538 https://mjm.usm.my/ 10.21161/mjm.221435
spellingShingle Liu, Jian
Wang, Huiling
Chia, Suet Lin
Tan, Geok Hun
Screening and formulation of novel carriers for Xanthomonas bacteriophage to control bacterial leaf blight disease
title Screening and formulation of novel carriers for Xanthomonas bacteriophage to control bacterial leaf blight disease
title_full Screening and formulation of novel carriers for Xanthomonas bacteriophage to control bacterial leaf blight disease
title_fullStr Screening and formulation of novel carriers for Xanthomonas bacteriophage to control bacterial leaf blight disease
title_full_unstemmed Screening and formulation of novel carriers for Xanthomonas bacteriophage to control bacterial leaf blight disease
title_short Screening and formulation of novel carriers for Xanthomonas bacteriophage to control bacterial leaf blight disease
title_sort screening and formulation of novel carriers for xanthomonas bacteriophage to control bacterial leaf blight disease
work_keys_str_mv AT liujian screeningandformulationofnovelcarriersforxanthomonasbacteriophagetocontrolbacterialleafblightdisease
AT wanghuiling screeningandformulationofnovelcarriersforxanthomonasbacteriophagetocontrolbacterialleafblightdisease
AT chiasuetlin screeningandformulationofnovelcarriersforxanthomonasbacteriophagetocontrolbacterialleafblightdisease
AT tangeokhun screeningandformulationofnovelcarriersforxanthomonasbacteriophagetocontrolbacterialleafblightdisease