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Salicylic Acid Regulates Sugar Metabolism that Confers Freezing Tolerance in Magnolia wufengensis During Natural Cold Acclimation

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Abstract

To improving the understand of the accumulation pattern of soluble sugars in Magnolia wufengensis during natural cold acclimation, the dynamics of freezing tolerance, the content of various soluble sugars in the shoots of M. wufengensis seedlings treated with salicylic acid, and the correlation between them were analyzed from September 2017 to March 2018. Salicylic acid advanced the natural cold acclimation and ultimately enhanced mid-winter hardiness by promoting the accumulation of total soluble sugars. Improved freezing tolerance highly correlated with enhanced glucose, fructose, and raffinose accumulation. The enhanced accumulation of these sugars by elevated amylase, sucrose synthase, and sucrose-P-synthase activities may contribute to advanced natural cold acclimation.

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Acknowledgements

We are thankful to Wufeng Bo Ling Magnolia wufengensis Technology Development Co., Ltd. for providing Magnolia wufengensis seedlings. And, we gratefully acknowledge anonymous reviewers for their helpful comments on this manuscript.

Funding

This research was financially supported by the Special Fund for Forest Scientific Research in the Public Welfare (Grant No. 201504704).

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XD designing the experiments, doing the experiments, running data analyses and writing the paper; ZZ designing the experiments partly, running data analyses and supervising the work; YY designing the experiments and supervising the work; JD, ZJ and FC coordinating and supervising the work; ZS coordinating, supervising and partly financially supporting work; LM conceiving and designing the experiments, supervising the work; All the authors read and approved the final manuscript.

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Correspondence to Luyi Ma.

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The authors declare no conflicts of interest.

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Handling Editor: Tibor Janda.

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Duan, X., Zhu, Z., Yang, Y. et al. Salicylic Acid Regulates Sugar Metabolism that Confers Freezing Tolerance in Magnolia wufengensis During Natural Cold Acclimation. J Plant Growth Regul 41, 227–235 (2022). https://doi.org/10.1007/s00344-020-10281-3

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  • DOI: https://doi.org/10.1007/s00344-020-10281-3

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