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Electronic Journal of Biotechnology

versión On-line ISSN 0717-3458

Resumen

JUNG, Yu-Jin et al. Overexpression of the pineapple fruit bromelain gene (BAA) in transgenic Chinese cabbage (Brassica rapa) results in enhanced resistance to bacterial soft rot. Electron. J. Biotechnol. [online]. 2008, vol.11, n.1, pp.71-79. ISSN 0717-3458.

Bromelain is a crude protein extract obtained from pineapple stems, which comprises a variety of proteolytic enzymes. It exhibits potential therapeutic activities against trauma, inflammation, autoimmune diseases and malignant disorders. In this study, we cloned BAA1 (the gene encoding fruit bromelain) into a plant expression vector that was then used to transform Brassica rapa and overexpress BAA1 under the control of the cauliflower mosaic virus (CaMV) 35S promoter. We demonstrate that constitutive overexpression of BAA1 in B. rapa confers enhanced resistance to the soft rot pathogen Pectobacterium carotovorum ssp. carotovorum. These results suggest that it could be utilized for protecting plants from attack by bacterial pathogens

Palabras clave : Brassica rapa; fruit bromelain; soft rot resistance; transgenic plant.

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