Dataset Information


Studies on the polyphenol metabolism of tissue cultures derived from the tea pant (Camellia sinensis L.).

ABSTRACT: 1. The growth characteristics on various media of solid and liquid suspension cultures derived from the stem of the tea plant are described; chlorophyll and anthocyanin synthesis occurred in the light. 2. Only the simplest catechins and leucoanthocyanins were present in callus tissue, although oligomeric and polymeric leucoanthocyanin fractions were also represented. Light caused an increase in all monomeric components analysed, but inhibited polymerization of the leucoanthocyanins. 3. The polyphenol oxidase activity of cultures was comparable with that of the apical regions of the intact plant, and was inversely correlated with growth rate. 4. Growth was stimulated by hormonal variation, and inhibited by high concentrations of sucrose and by high light-intensity; polyphenol concentrations were generally inversely correlated with growth rate. 5. From the inability of callus tissue and of cultured root apices to synthesize complex catechins, it is inferred that complex catechin formation in intact plants is associated with the process of cell vacuolation.


PROVIDER: S-EPMC1184766 | BioStudies | 1969-01-01

SECONDARY ACCESSION(S): 10.1042/bj1130765

REPOSITORIES: biostudies

Similar Datasets

1969-01-01 | S-EPMC1184764 | BioStudies
2016-01-01 | S-EPMC6587036 | BioStudies
2019-01-01 | S-EPMC6912253 | BioStudies
2020-01-01 | S-EPMC7248882 | BioStudies
2015-01-01 | S-EPMC4418572 | BioStudies
1000-01-01 | S-EPMC6254243 | BioStudies
2019-01-01 | S-EPMC6999447 | BioStudies
2016-01-01 | S-EPMC5430556 | BioStudies
2021-01-01 | S-EPMC7926386 | BioStudies
2018-01-01 | S-EPMC6266343 | BioStudies