First Report of Bacterial Soft Rot Disease on Pak Choi (Brassica rapa subsp. chinensis) caused by Pectobacterium brasiliense in the United States.

ABSTRACT: Pak choi (Brassica rapa subsp. chinensis) is an important vegetable crop native to China, known for high water content and low caloric value, containing high quality of protein, carbohydrates, fiber, vitamins, minerals, and secondary plant metabolites (Acikgoz, 2016). A pak choi field (8,000 sq. ft.) on Oahu, Hawaii, was visited in May 2020. About 10% plants were infected and showed characteristic symptoms of soft rot, wet lesions, macerated infected stem and necrotic leaves (Figure1A-D); leading to the suspect of one of the most devastating bacterial pathogens within genus Pectobacterium (Boluk et al. 2020; Li et al. 2019; Arizala et al. 2020; Arizala and Arif, 2019). Four infected plants were collected from the field, and stems were surface sterilized with 0.6% sodium hypochlorite soluti

SUBMITTER: Klair D 

PROVIDER: S-EPMC8446085 | biostudies-literature | 2021 Mar

REPOSITORIES: biostudies-literature