不同光合光子密度和生育期栽培小麦幼苗初级和次级代谢物的比较分析

IF 3.3 2区农林科学 Q1 AGRICULTURE, MULTIDISCIPLINARY

Journal of the Science of Food and Agriculture Pub Date : 2025-06-13 DOI:10.1002/jsfa.14432

Ye Jin Kim, Yu-Mi Shin, HanGyeol Lee, So-Yeon Moon, Tae Jin Kim, Sang Un Park, Woo Duck Seo, Jae Kwang Kim

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引用次数: 0

摘要

背景：为了阐明环境因素对小麦幼苗代谢物营养品质的影响，必须对初级代谢物和次级代谢物进行综合研究。在不同光合光子通量密度（PPFD）（200、400和800 μmol m-2 s-1）和生育期（5、7、9、11、13和15 d）下，对小麦幼苗的代谢产物进行了比较分析，以优化幼苗的营养品质。结果：共鉴定出74种代谢物，其中51种为初级代谢物，23种为次生代谢物。多变量分析证实了黄酮类化合物（已知的抗氧化剂）在不同PPFD条件下的变化。400 μmol m-2 s-1 PPFD处理9 d以上的小麦幼苗黄酮类化合物含量高于其他处理。此外，还观察到半胱氨酸和蛋氨酸代谢、糖代谢以及类胡萝卜素和苯丙素的生物合成增加。结论：400 μmol m-2 s-1的PPFD通过促进光合作用的合成代谢来促进小麦幼苗糖代谢。此外，次生代谢产物的主要原料糖的积累影响了类黄酮的生物合成。这些结果表明，小麦幼苗对光强的响应经历了代谢重编程，从而实现了适应性反应。因此，我们的研究证实了不同PPFD条件下小麦幼苗初级代谢物和次级代谢物之间的关系。此外，获得的见解增强了我们对光照强度和持续时间对代谢物积累的影响的理解，这对于优化农业实践至关重要。©2025作者。约翰威利父子有限公司代表化学工业协会出版的《食品与农业科学杂志》。

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Comparative analysis of primary and secondary metabolites in wheat seedlings (Triticum aestivum L.) cultivated under varying photosynthetic photon flux densities and growth periods.

Background: To elucidate the impact of environmental factors on the nutritional quality of metabolites in wheat seedlings, both primary and secondary metabolites must be comprehensively examined. We thus conducted a comparative analysis of these metabolites in wheat seedlings grown under various photosynthetic photon flux densities (PPFD) (200, 400 and 800 μmol m^-2 s^-1) and growth periods (5, 7, 9, 11, 13 and 15 days) to help optimize the nutritional quality of seedlings.

Results: In total, 74 metabolites were characterized, including 51 primary metabolites and 23 secondary metabolites. Multivariate analyses confirmed changes in flavonoids, which are known antioxidants, under the various PPFD conditions. Wheat seedlings grown at a PPFD of 400 μmol m^-2 s^-1 for more than 9 days exhibited a higher flavonoid content than those grown under the other conditions. Furthermore, an increase in cysteine and methionine metabolism, sugar metabolism, and carotenoid and phenylpropanoid biosynthesis was observed.

Conclusion: A PPFD of 400 μmol m^-2 s^-1 increases sugar metabolism in wheat seedlings by promoting anabolism through photosynthesis. Furthermore, the accumulation of sugars, the primary raw materials for secondary metabolites, affects flavonoid biosynthesis. These results suggest that wheat seedlings undergo metabolic reprogramming in response to light intensity, enabling adaptive responses. Our study thus confirmed the relationships between primary and secondary metabolites in wheat seedlings under various PPFD conditions. Furthermore, the insights gained enhance our understanding of the influence of light intensity and duration on metabolite accumulation, which is vital for optimizing agricultural practices. © 2025 The Author(s). Journal of the Science of Food and Agriculture published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.

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来源期刊

Journal of the Science of Food and Agriculture 工程技术-农业综合

CiteScore

8.10

自引率

4.90%

发文量

634

审稿时长

3.1 months

期刊介绍： The Journal of the Science of Food and Agriculture publishes peer-reviewed original research, reviews, mini-reviews, perspectives and spotlights in these areas, with particular emphasis on interdisciplinary studies at the agriculture/ food interface. Published for SCI by John Wiley & Sons Ltd. SCI (Society of Chemical Industry) is a unique international forum where science meets business on independent, impartial ground. Anyone can join and current Members include consumers, business people, environmentalists, industrialists, farmers, and researchers. The Society offers a chance to share information between sectors as diverse as food and agriculture, pharmaceuticals, biotechnology, materials, chemicals, environmental science and safety. As well as organising educational events, SCI awards a number of prestigious honours and scholarships each year, publishes peer-reviewed journals, and provides Members with news from their sectors in the respected magazine, Chemistry & Industry . Originally established in London in 1881 and in New York in 1894, SCI is a registered charity with Members in over 70 countries.