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Evaluation of Bacterial Spot Disease of Capsicum annuum L. in Drought Stress Environment by High Temperature
Res. Plant Dis. 2019;25:62-70
Published online June 30, 2019
© 2019 The Korean Society of Plant Pathology.

Jong-Ok Jang1, Byung-Hyuk Kim1,2, Jung-Bok Lee2, Jae-Ho Joa3, and Sangwook Koh1*

1Research Institute for Climate Change and Agriculture, NIHHS, RDA, Jeju 63240, Korea
2Institute for Development of Bio-industrial Materials, BHNBIO Co., LTD., Gyeongbuk 36729, Korea
3Citrus Research Institute, NIHHS, RDA, Jeju 63607, Korea
Tel: +82-64-741-2580
Fax: +82-64-749-2066
Received October 1, 2018; Revised June 5, 2019; Accepted June 11, 2019.
cc This is an open access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (, which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
The global warming by increased CO2 will effect of plant pathogenic microorganisms and resistance of host plants, and it is expected to affect host-pathogen interactions. This study used Capsicum annuum L. and Xanthomonas euvesicatoria, a pathogenic bacteria of pepper, to investigate interactions between hosts and pathogens in a complex environment with increased cultivation temperature and drought stress. As a result, the bacterial spot disease of C. annuum L. caused by X. euvesicatoria was 35°C higher than 25°C. In addition, the effect on water potential on bacterial spot disease was much greater water potential -150 kPa than -30 kPa. The disease progress and severity higher than water potential -30 kPa. This result will useful for understanding interaction with red pepper and X. euvesicatoria under the complex environment with increased cultivation temperature and in water potential -150 kPa drought stress in the future.
Keywords : Bacterial spot disease, CO2, pathogenic bacteria, red pepper, Xanthomonas euvesicatoria

June 2019, 25 (2)