Improving Albino Tea Quality by Foliar Application of Glycinebetaine as a Green Regulator under Lower Temperature Conditions

White leaf No.1 (WL-1) is a low temperature-induced albino tea cultivar, which sticks out from tea plants with rich amino acids. Because harmonization of chloroplast ultrastructure integrity and lower chlorophyll contents during the albinism processes is much crucial for WL-1 production under extreme weather conditions, we carried out a field experiment to investigate the regulating effects of exogenous glycinebetaine (GB) on the chloroplast ultrastructure and quality constituents in young leaves of WL-1 at different albinism stages. The internal structure of chloroplasts degenerated at the albinistic stage, and chlorophyll contents were significantly lower than those at pre-albinistic and regreening stages. Spraying GB regulated etioplast-chloroplast transition, significantly increased epigallocatechin gallate, theanine, and caffeine contents, and lowered chlorophyll content in albinistic young leaves of WL-1, thus improving its quality in some aspects, maintaining special leaf color, exerting flavor and umami, and improving antioxidant and refreshing effects. Foliar application of GB is an efficient technical measure in practice.

Medienart:

E-Artikel

Erscheinungsjahr:

2021

Erschienen:

2021

Enthalten in:

Zur Gesamtaufnahme - volume:69

Enthalten in:

Journal of agricultural and food chemistry - 69(2021), 4 vom: 03. Feb., Seite 1242-1250

Sprache:

Englisch

Beteiligte Personen:

Huang, Shan [VerfasserIn]
Zuo, Ting [VerfasserIn]
Xu, Wanfu [VerfasserIn]
Zhang, Yaxiong [VerfasserIn]
Ni, Wuzhong [VerfasserIn]

Links:

Volltext

Themen:

1406-65-1
3SCV180C9W
Albino tea
Betaine
Chlorophyll
Chloroplast ultrastructure
Glycinebetaine
Journal Article
Photosynthetic pigments
Quality constituents
Tea
White leaf No.1

Anmerkungen:

Date Completed 13.04.2021

Date Revised 13.04.2021

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1021/acs.jafc.0c06284

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM320347192