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Article

Transcriptomic and Metabolomic Analysis Reveal Possible Molecular Mechanisms Regulating Tea Plant Growth Elicited by Chitosan Oligosaccharide

1
State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang 550025, China
2
College of Tea, Guizhou University, Guiyang 550025, China
*
Authors to whom correspondence should be addressed.
Academic Editor: Bartolomé Sabater
Int. J. Mol. Sci. 2022, 23(10), 5469; https://doi.org/10.3390/ijms23105469
Received: 7 April 2022 / Revised: 7 May 2022 / Accepted: 11 May 2022 / Published: 13 May 2022
(This article belongs to the Section Molecular Plant Sciences)
Chitosan oligosaccharide (COS) plays an important role in the growth and development of tea plants. However, responses in tea plants trigged by COS have not been thoroughly investigated. In this study, we integrated transcriptomics and metabolomics analysis to understand the mechanisms of chitosan-induced tea quality improvement and growth promotion. The combined analysis revealed an obvious link between the flourishing development of the tea plant and the presence of COS. It obviously regulated the growth and development of the tea and the metabolomic process. The chlorophyll, soluble sugar, and amino acid content in the tea leaves was increased. The phytohormones, carbohydrates, and amino acid levels were zoomed-in in both transcript and metabolomics analyses compared to the control. The expression of the genes related to phytohormones transduction, carbon fixation, and amino acid metabolism during the growth and development of tea plants were significantly upregulated. Our findings indicated that alerted transcriptomic and metabolic responses occurring with the application of COS could cause efficiency in substrates in pivotal pathways and hence, elicited plant growth.
Keywords: chitosan oligosaccharide; tea plant growth and development; transcriptome; metabolic pathways; metabolism chitosan oligosaccharide; tea plant growth and development; transcriptome; metabolic pathways; metabolism
MDPI and ACS Style

Ji, D.; Ou, L.; Ren, X.; Yang, X.; Tan, Y.; Zhou, X.; Jin, L. Transcriptomic and Metabolomic Analysis Reveal Possible Molecular Mechanisms Regulating Tea Plant Growth Elicited by Chitosan Oligosaccharide. Int. J. Mol. Sci. 2022, 23, 5469. https://doi.org/10.3390/ijms23105469

AMA Style

Ji D, Ou L, Ren X, Yang X, Tan Y, Zhou X, Jin L. Transcriptomic and Metabolomic Analysis Reveal Possible Molecular Mechanisms Regulating Tea Plant Growth Elicited by Chitosan Oligosaccharide. International Journal of Molecular Sciences. 2022; 23(10):5469. https://doi.org/10.3390/ijms23105469

Chicago/Turabian Style

Ji, Dezhong, Lina Ou, Xiaoli Ren, Xiuju Yang, Yanni Tan, Xia Zhou, and Linhong Jin. 2022. "Transcriptomic and Metabolomic Analysis Reveal Possible Molecular Mechanisms Regulating Tea Plant Growth Elicited by Chitosan Oligosaccharide" International Journal of Molecular Sciences 23, no. 10: 5469. https://doi.org/10.3390/ijms23105469

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