Inhibitors of abscisic acid synthesis or signaling affect anthocyanin synthesis and photoreceptors in grape berries

IF 3.9 2区农林科学 Q1 HORTICULTURE Scientia Horticulturae Pub Date : 2024-09-14 DOI:10.1016/j.scienta.2024.113623

Satoru Kondo , Koyo Kunugi , Takanori Saito , Katsuya Ohkawa , Jun Takeuchi , Yasushi Todoroki , Netnapis Khewkhom , Varit Srilaong , Wasana Phlaetita , Sutthiwal Setha

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Abstract

Effects of endogenous abscisic acid (ABA) and ABA signal transduction on anthocyanin and photoreceptors in grape berries (Vitis labruscana) were examined using NDGA, the inhibitor of the rate-limiting ABA biosynthesis enzyme in grapes, and PANMe, an ABA receptor interaction antagonist. Both NDGA and PANMe treatments decreased anthocyanin concentrations. The expressions of VvSnRK2.6, VvABF2, and VvPP2C9 in NDGA treatment were not significantly different from the untreated control; by contrast, PANMe treatment decreased the expressions of VvSnRK2.6, VvABF2, and VvPP2C9. Both NDGA and PANMe treatments decreased the expressions of VvPhot2 and VvCRYa. These results suggest that both endogenous ABA concentrations and ABA signaling affect anthocyanin synthesis and photoreceptor genes such as VvPhot2 and VvCRYa in grape skins.

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脱落酸合成或信号传导抑制剂影响葡萄浆果中花青素的合成和感光器

使用葡萄中限制 ABA 生物合成速率的酶抑制剂 NDGA 和 ABA 受体相互作用拮抗剂 PANMe，研究了内源脱落酸（ABA）和 ABA 信号转导对葡萄浆果（Vitis labruscana）中花青素和光感受器的影响。NDGA 和 PANMe 处理都会降低花青素浓度。在 NDGA 处理中，VvSnRK2.6、VvABF2 和 VvPP2C9 的表达量与未处理的对照没有显著差异；相比之下，PANMe 处理降低了 VvSnRK2.6、VvABF2 和 VvPP2C9 的表达量。NDGA 和 PANMe 处理均降低了 VvPhot2 和 VvCRYa 的表达。这些结果表明，内源 ABA 浓度和 ABA 信号转导都会影响葡萄皮中花青素的合成以及 VvPhot2 和 VvCRYa 等感光基因的表达。

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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.