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The molecular regulation of folate accumulation in pakchoi by low intensity white light-emitting diode (LED) illumination

文献类型： 外文期刊

作者： Gao, Hongdou 1 ; Yue, Xiaozhen 1 ; Li, Zitong 1 ; Yuan, Shuzhi 1 ; Shi, Wenlin 1 ; Yan, Zhicheng 1 ; Xu, Dongying 1 ; Zhong, Fenglin 3 ; Chang, Hong 1 ; Jiang, Aili 2 ; Zuo, Jinhua 1 ; Wang, Qing 1 ;

作者机构： 1.Beijing Acad Agr & Forestry Sci, Key Lab Biol & Genet Improvement Hort Crops North, Key Lab Urban Agr North Minist Agr,Minist Agr & Ru, Inst Agrifood Proc & Nutr,Key Lab Vegetable Postha, Beijing 100097, Peoples R China

2.Dalian Minzu Univ, Coll Life Sci, Dalian 116600, Peoples R China

3.Fujian Agr & Forestry Univ, Coll Hort, Fuzhou 350002, Fujian, Peoples R China

关键词： White light-emitting diode (LED); Pakchoi; Folate precursors; Differentially gene expression (DEGs)

期刊名称：SCIENTIA HORTICULTURAE （ 影响因子：4.3； 五年影响因子：4.5 ）

ISSN： 0304-4238

年卷期： 2023 年 314 卷

页码：

收录情况： SCI

摘要： The objective of the present study was to determine the effect of white LED illumination on the level of folate and its precursors, synthesis-related enzymes, and the expression of their corresponding genes in pakchoi stored at 20 degrees C. Results indicated that LED (10 mu mol m(-2) s(-1)) illumination decreased the level of 7,8-dihydroneopterin (DHN), 6-hydroxymethyl-7.8-dihydropterin (HMDHP), 7,8-dihydrofolate (DHF), chorismate, and 4-amino-4-deoxychorismate (ADC), and increased the level of folate 7.8-dihydroneopterin 3'- triphosphate (DHN-P3), 6-hydroxymethyldihydropterin pyrophosphate (HMDHP-P2), dihydropteroate (DHP), Tetrahydrofolate (THF), polyglutamyl tetrahydrofolatein (THF-Glu(n)) and p-aminobenzoate (pABA). Additionally, the level of guanosine triphosphate cyclohydrolase I (GTPCHI), 7,8-dihydrofolate reductase (DHFR), and folylpolyglutamate synthetase (FPGS) were also reduced, as was the expression level of their corresponding genes. LED illumination also increased the level of 7,8-dihydrofolate synthetase (DHFS), amino deoxychorismate synthetase (ADCS), and amino deoxychorismate lyase (ADCL), and the expression of their corresponding genes. The LED treatment, however, did not have much impact on the level of guanosine triphosphate (GTP) and gamma-glutamyl hydrolase (GGH). The analysis of differentially expressed genes (DEGs) indicated that the white LED illumination treatment had a significant impact on folate biosynthesis. In summary, white LED illumination had a regulatory impact on folate metabolism in harvested pakchoi and extended its postharvest quality.

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