Enzyme activity in banana fruits rotted by Botryodiplodia theobromae Pat.

Nityananda Chakraborty, Balen Nandi

Abstract


Peroxidase and polyphenol oxidase activities in fruits of two cultivars of banana, 'champa' and 'kanthali' rotted by Botryodiplodia theobromae Pat. was studied. The enzymes showed much higher activities in infected than that in uninfected 'tissues. Increase in peroxidase activity was evidently inhibited by cycloheximide. Polyphenol oxidase activity was also inhibited in presence of phenylthiourea and Na-diethyldithiocarbamate more strongly by the former. Increase in activities seemed to be due to increased sytheses of the enzymes. In an in vitro culture, the fungus exhibited some peroxidase but no polyphenoloxidase activity.

Full Text:

PDF


DOI: https://doi.org/10.5586/aa.1978.004

Journal ISSN:
  • 2300-357X (online)
  • 0065-0951 (print; ceased since 2016)
This is an Open Access journal, which distributes its content under the terms of the Creative Commons Attribution License, which permits redistribution, commercial and non-commercial, provided that the content is properly cited.
The journal is a member of the Committee on Publication Ethics (COPE) and aims to follow the COPE’s principles.
The journal publisher is a member of the Open Access Scholarly Publishers Association.
The journal content is indexed in Similarity Check, the Crossref initiative to prevent scholarly and professional plagiarism.
Publisher
Polish Botanical Society