Seasonal influence on tomato fruit metabolome profile: Implications for ABA signaling in multi-stress resilience

IF 6.1 2区 生物学 Q1 PLANT SCIENCES
Miriam Pardo-Hernández , Leilei Zhang , Luigi Lucini , Rosa M. Rivero
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Abstract

The increasing effects of climate change are leading to an increase in the number and intensity of extreme events, making it essential to study how plants respond to various stresses occurring simultaneously. A crucial regulator of plant responses to abiotic stress is abscisic acid (ABA), as its accumulation in response to stress leads to transcriptomic and metabolomic changes that contribute to plant stress tolerance. In the present study, we investigated how ABA, stress conditions (salinity, water deficit and their combination) and seasons (autumn-winter and spring-summer) regulate tomato fruit yield and metabolism using tomato wild type (WT) and the ABA-deficient flacca mutant (flc) under stress conditions in cold and warm seasons. Our results showed that the applied stresses did not have the same effect in the warm season as in the cold season. In WT plants, the levels of other flavonoids, lignans and other polyphenols were higher in summer fruits, whereas the levels of anthocyanins, flavanols, flavonols, phenolic acids and stilbenes were higher in winter fruits. Furthermore, the significant increase in anthocyanins and flavonols was associated with the combination of salinity + water deficit in both seasons. Additionally, under certain conditions, flc mutants showed an enrichment of the superclasses of benzenoids and organosulphur compounds. The synthesis of phenolic compounds in flc fruits was also significantly different compared to WT plants. Thus, the metabolic profile of tomato fruits varies significantly with endogenous ABA levels, season of cultivation and applied stress treatments, highlighting the multifactorial nature of plant responses to combined environmental factors.
季节对番茄果实代谢组特征的影响:ABA 信号在多重胁迫恢复中的意义
气候变化的影响越来越大,导致极端事件的数量和强度增加,因此研究植物如何应对同时发生的各种胁迫至关重要。脱落酸(ABA)是植物应对非生物胁迫的一个重要调节因子,因为它在应对胁迫时的积累会导致转录组和代谢组的变化,从而促进植物的胁迫耐受性。在本研究中,我们利用番茄野生型(WT)和 ABA 缺乏的 flacca 突变体(flc),研究了 ABA、胁迫条件(盐度、水分亏缺及其组合)和季节(秋冬季和春夏季)如何在寒冷和温暖季节的胁迫条件下调节番茄果实产量和代谢。结果表明,暖季和冷季施加的胁迫效果并不相同。在 WT 植株中,夏季果实中其他黄酮类化合物、木脂素和其他多酚的含量较高,而冬季果实中花青素、黄烷醇、黄酮醇、酚酸和二苯乙烯类化合物的含量较高。此外,花青素和黄酮醇的显著增加与两个季节的盐度+缺水组合有关。此外,在某些条件下,flc 突变体显示出苯类和有机硫化合物超类的富集。与 WT 植物相比,flc 果实中酚类化合物的合成也有显著差异。因此,番茄果实的新陈代谢特征随内源 ABA 水平、栽培季节和施加的胁迫处理而有很大不同,突出了植物对综合环境因素反应的多因素性质。
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来源期刊
Plant Physiology and Biochemistry
Plant Physiology and Biochemistry 生物-植物科学
CiteScore
11.10
自引率
3.10%
发文量
410
审稿时长
33 days
期刊介绍: Plant Physiology and Biochemistry publishes original theoretical, experimental and technical contributions in the various fields of plant physiology (biochemistry, physiology, structure, genetics, plant-microbe interactions, etc.) at diverse levels of integration (molecular, subcellular, cellular, organ, whole plant, environmental). Opinions expressed in the journal are the sole responsibility of the authors and publication does not imply the editors'' agreement. Manuscripts describing molecular-genetic and/or gene expression data that are not integrated with biochemical analysis and/or actual measurements of plant physiological processes are not suitable for PPB. Also "Omics" studies (transcriptomics, proteomics, metabolomics, etc.) reporting descriptive analysis without an element of functional validation assays, will not be considered. Similarly, applied agronomic or phytochemical studies that generate no new, fundamental insights in plant physiological and/or biochemical processes are not suitable for publication in PPB. Plant Physiology and Biochemistry publishes several types of articles: Reviews, Papers and Short Papers. Articles for Reviews are either invited by the editor or proposed by the authors for the editor''s prior agreement. Reviews should not exceed 40 typewritten pages and Short Papers no more than approximately 8 typewritten pages. The fundamental character of Plant Physiology and Biochemistry remains that of a journal for original results.
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