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Characterization of the Difference between Day and Night Temperatures on the Growth, Photosynthesis, and Metabolite Accumulation of Tea Seedlings.
Tan, Xiaoqin; Li, Huili; Zhang, Zhongyue; Yang, Yanjuan; Jin, Zhen; Chen, Wei; Tang, Dandan; Wei, Chaoling; Tang, Qian.
Afiliación
  • Tan X; College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China.
  • Li H; College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China.
  • Zhang Z; College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China.
  • Yang Y; College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China.
  • Jin Z; College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China.
  • Chen W; College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China.
  • Tang D; Tea Refining and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China.
  • Wei C; College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China.
  • Tang Q; Tea Refining and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China.
Int J Mol Sci ; 24(7)2023 Apr 04.
Article en En | MEDLINE | ID: mdl-37047691
Currently, the effects of the differences between day and night temperatures (DIFs) on tea plant are poorly understood. In order to investigate the influence of DIFs on the growth, photosynthesis, and metabolite accumulation of tea plants, the plants were cultivated under 5 °C (25/20 °C, light/dark), 10 °C (25/15 °C, light/dark), and 15 °C (25/10 °C, light/dark). The results showed that the growth rate of the new shoots decreased with an increase in the DIFs. There was a downward trend in the photosynthesis among the treatments, as evidenced by the lowest net photosynthetic rate and total chlorophyll at a DIF of 15 °C. In addition, the DIFs significantly affected the primary and secondary metabolites. In particular, the 10 °C DIF treatment contained the lowest levels of soluble sugars, tea polyphenols, and catechins but was abundant in caffeine and amino acids, along with high expression levels of theanine synthetase (TS3) and glutamate synthase (GOGAT). Furthermore, the transcriptome data revealed that the differentially expressed genes were enriched in valine, leucine, and isoleucine degradation, flavone/flavonol biosyntheses, flavonoid biosynthesis, etc. Therefore, we concluded that a DIF of 10 °C was suitable for the protected cultivation of tea plants in terms of the growth and the quality of a favorable flavor of tea, which provided a scientific basis for the protected cultivation of tea seedlings.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Camellia sinensis / Plantones Idioma: En Revista: Int J Mol Sci Año: 2023 Tipo del documento: Article País de afiliación: China Pais de publicación: Suiza
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Camellia sinensis / Plantones Idioma: En Revista: Int J Mol Sci Año: 2023 Tipo del documento: Article País de afiliación: China Pais de publicación: Suiza