| Literature DB >> 12777045 |
M C Marín-Rodríguez1, D L Smith, K Manning, J Orchard, G B Seymour.
Abstract
Two distinct cDNA clones showing sequence homology to higher-plant pectate lyase (Pel) genes were isolated from ripening banana fruits. The transcripts were detected only in fruit tissue and both were strongly ripening-related. Yeast transformation with the most highly expressed Pel clone produced a recombinant protein with pectate lyase activity, demonstrating that this sequence was likely to encode a pectate lyase protein in planta. An assay developed for measuring the action of the endogenous enzyme from banana pulp tissue revealed a significant increase in calcium-dependent pectate lyase activity during ripening. The enhanced levels of enzyme activity corresponded with an increase in soluble polyuronides from banana pulp.Entities:
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Year: 2003 PMID: 12777045 DOI: 10.1023/a:1023057202847
Source DB: PubMed Journal: Plant Mol Biol ISSN: 0167-4412 Impact factor: 4.076