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Salicylic and Hydroxybenzoic Acids Affect the Accumulation of Phenolic Compounds in Tea-Plant Cultures in vitro
Biology Bulletin ( IF 0.5 ) Pub Date : 2020-07-31 , DOI: 10.1134/s1062359020040093
T. L. Nechaeva , T. N. Nikolaeva , N. V. Zagoskina

Abstract

The short-term effects of salicylic and p-hydroxybenzoic acids on the tea plant Camellia sinensis (L.) Kuntze for in vitro cultures were studied. It was found that the acids did not change the morphophysiological parameters of the callus cultures. Meanwhile, the content of malondialdehyde and phenolic compounds, including their monomeric (phenylpropanoids and flavans) and oligomeric (proanthocyanidins) forms, decreased with an increase in the amount of lignin (polymer of phenolic nature) in the treated calli. The activity of L-phenylalanine ammonia lyase (the chief enzyme of phenilic metabolism) did not change upon exposure to p-hydroxybenzoic but decreased after contact with salicylic acid.


中文翻译:

水杨酸和羟基苯甲酸影响茶树培养物中酚类化合物的积累

摘要

研究了水杨酸和羟基苯甲酸对茶树山茶的体外培养的短期影响。发现该酸不会改变愈伤组织培养物的形态生理参数。同时,丙二醛和酚类化合物的含量,包括它们的单体形式(苯基丙烷和黄烷)和低聚形式的(原花色素)形式,随着处理过的愈伤组织中木质素(酚类聚合物)的含量的增加而降低。L-苯丙氨酸氨裂合酶(苯酚代谢的主要酶)的活性在暴露于羟基苯甲酸中并没有改变,但在与水杨酸接触后却降低了。
更新日期:2020-07-31
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