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Arginine promotes seed energy metabolism, increasing wheat seed germination at low temperature

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Title Arginine promotes seed energy metabolism, increasing wheat seed germination at low temperature
 
Creator Li, Jiayu
 
Contributor Li, Zhiyuan
Tang, Yangyang
Xiao, Jianke
Nangia, Vinay
Liu, Yang
 
Subject arginine
energy metabolism
 
Description Low temperatures during germination inhibit seed growth, lead to small and weak seedlings, and significantly reduce the wheat yield. Alleviating the adverse effects of low temperature on wheat seed germination is highly important for achieving high and stable wheat yields. In this study, Tongmai 6 (insensitive) and Zhengmai 113 (sensitive), which have different low-temperature sensitivities during germination were treated with low temperature during germination. The transcriptome, metabolome and physiological data revealed that low temperature decreased the germination rate, downregulated the expression of a large number of genes involved in regulating glycometabolism, and inhibited carbon, nitrogen (especially amino acids) and energy metabolism in the seeds. Arginine content increased at low temperature, and its increase in the low-temperature-tolerant variety was significantly greater than that in the sensitive variety. Arginine priming experiment showed that treatment with an appropriate concentration of arginine improved the seed germination rate. The conversion of starch to soluble sugar significantly increased under exogenous arginine conditions, the content of key metabolites in energy metabolism increased, and the utilization of ATP in the seeds increased. Taken together, arginine priming increased seed germination at low temperature by relieving inhibition of seed carbon and nitrogen metabolism and improving seed energy metabolism.
 
Date 2024-08-02T17:57:32Z
2024-08-02T17:57:32Z
 
Type Journal Article
 
Identifier https://mel.cgiar.org/reporting/downloadmelspace/hash/e794ae454ed028d1a4e5cf1b44775f47
Jiayu Li, Zhiyuan Li, Yangyang Tang, Jianke Xiao, Vinay Nangia, Yang Liu. (14/7/2024). Arginine promotes seed energy metabolism, increasing wheat seed germination at low temperature. The Crop Journal.
https://hdl.handle.net/20.500.11766/69449
Open access
 
Language en
 
Rights CC-BY-NC-ND-4.0
 
Format PDF
 
Publisher Crop Science Society of China and Institute of Crop Science, CAAS
 
Source The Crop Journal;(2024)