Growth promotion and amino acid profiles in Spinacia accessions under alternating red and blue light

IF 4.2 2区农林科学 Q1 HORTICULTURE

Scientia Horticulturae Pub Date : 2025-09-01 DOI:10.1016/j.scienta.2025.114344

Tri Manh Le , Yuki Sago , Yasuomi Ibaraki , Kazuhiro Harada , Kenta Arai , Yuichi Ishizaki , Hitoshi Aoki , Chris Kik , Rob van Treuren , Theo van Hintum , Masayoshi Shigyo

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Abstract

Alternating irradiation of red and blue light has been reported to promote the growth of several crops, caused by modifications in metabolite biosynthesis. In this study, ten Spinacia accessions, including both cultivated and wild spinach, were grown under alternating and simultaneous red/blue light irradiation, with a white fluorescent lamp used as a control. The results indicated that alternating red and blue light significantly increased fresh weight of most accessions. Additionally, alternating irradiation enhanced accumulation of glutamic acid, glutamine, and aspartic acid. In contrast, the levels of gamma-aminobutyric acid (GABA) and asparagine significantly decreased under alternating red and blue light, while they reached their highest values under simultaneous irradiation. The results suggest that different irradiation regimes influence plant growth by modulating enzyme activity in metabolic processes, leading to the accumulation or depletion of specific amino acids. Among the tested accessions, ‘CGN25120’ exhibited the highest increase in fresh weight when subjected to alternating irradiation, showing a remarkable improvement of 100.3% compared to fluorescent irradiation. Similarly, ‘CGN09511’ experienced a 153.1% increase in fresh weight without a significant reduction in amino acid content. Meanwhile, the wild accession ‘CGN25085’ (Spinacia tetrandra) demonstrated exceptionally high amino acid content, suggesting it could be a valuable genetic resource for plant breeding.

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红蓝交替光对菠菜生长的促进作用及氨基酸谱分析

据报道，红光和蓝光的交替照射可以促进几种作物的生长，这是由于代谢物生物合成的改变引起的。本研究选用10份菠菜材料，包括栽培和野生菠菜，在交替和同时的红/蓝光照射下生长，并以白色荧光灯作为对照。结果表明，红蓝光交替处理显著提高了大部分品种的鲜重。此外，交替照射增强了谷氨酸、谷氨酰胺和天冬氨酸的积累。红蓝光交替照射下，γ -氨基丁酸（GABA）和天冬酰胺含量显著降低，同时照射时达到最高值。结果表明，不同的辐照制度通过调节代谢过程中的酶活性来影响植物生长，从而导致特定氨基酸的积累或消耗。在供试品种中，CGN25120在交替辐照下鲜重增幅最大，较荧光辐照显著提高100.3%。同样，‘CGN09511’鲜重增加了153.1%，但氨基酸含量没有显著降低。同时，野生入种‘CGN25085’（Spinacia tetrandra）氨基酸含量异常高，表明它可能是一种有价值的植物育种遗传资源。

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来源期刊

Scientia Horticulturae 农林科学-园艺

CiteScore

8.60

自引率

4.70%

发文量

796

审稿时长

47 days

期刊介绍： Scientia Horticulturae is an international journal publishing research related to horticultural crops. Articles in the journal deal with open or protected production of vegetables, fruits, edible fungi and ornamentals under temperate, subtropical and tropical conditions. Papers in related areas (biochemistry, micropropagation, soil science, plant breeding, plant physiology, phytopathology, etc.) are considered, if they contain information of direct significance to horticulture. Papers on the technical aspects of horticulture (engineering, crop processing, storage, transport etc.) are accepted for publication only if they relate directly to the living product. In the case of plantation crops, those yielding a product that may be used fresh (e.g. tropical vegetables, citrus, bananas, and other fruits) will be considered, while those papers describing the processing of the product (e.g. rubber, tobacco, and quinine) will not. The scope of the journal includes all horticultural crops but does not include speciality crops such as, medicinal crops or forestry crops, such as bamboo. Basic molecular studies without any direct application in horticulture will not be considered for this journal.