The crosstalk of far-red energy and signaling defines the regulation of photosynthesis, growth, and flowering in tomatoes

IF 5.7 2区生物学 Q1 PLANT SCIENCES

Plant Physiology and Biochemistry Pub Date : 2024-02-22 DOI:10.1016/j.plaphy.2024.108458

Aida Shomali , Nuria De Diego , Rong Zhou , Lamis Abdelhakim , Ondřej Vrobel , Petr Tarkowski , Sasan Aliniaeifard , Yousef Yari Kamrani , Yongran Ji , Carl-Otto Ottosen

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Abstract

This study investigated the effect of light intensity and signaling on the regulation of far-red (FR)-induced alteration in photosynthesis. The low (LL: 440 μmol m⁻² s⁻¹) and high (HL: 1135 μmol m⁻² s⁻¹) intensity of white light with or without FR (LLFR: 545 μmol m⁻² s⁻¹ including 115 μmol m⁻² s⁻¹; HLFR: 1254 μmol m⁻² s⁻¹ + 140 μmol m⁻² s⁻¹) was applied on the tomato cultivar (Solanum Lycopersicon cv. Moneymaker) and mutants of phytochrome A (phyA) and phytochrome B (phyB1, and phyB2). Both light intensity and FR affected plant morphological traits, leaf biomass, and flowering time. Irrespective of genotype, flowering was delayed by LLFR and accelerated by HLFR compared to the corresponding light intensity without FR. In LLFR, a reduced energy flux through the electron transfer chain along with a reduced energy dissipation per reaction center improved the maximum quantum yield of PSII, irrespective of genotype. HLFR increased net photosynthesis and gas exchange properties in a genotype-dependent manner. FR-dependent regulation of hormones was affected by light signaling. It appeared that PHYB affected the levels of abscisic acid and salicylic acid while PHYA took part in the regulation of CK in FR-exposed plants. Overall, light intensity and signaling of FR influenced plants' photosynthesis and growth by altering electron transport, gas exchange, and changes in the level of endogenous hormones.

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远红外线能量和信号的相互影响决定了番茄光合作用、生长和开花的调控方式

本研究探讨了光照强度和信号转导对远红外线（FR）诱导的光合作用变化的调节作用。低（LL：440 μmol m-2 s-1）和高（HL：1135 μmol m-2 s-1）强度的白光加或不加 FR（LLFR：545 μmol m-2 s-1 包括 115 μmol m-2 s-1；HLFR：1254 μmol m-2 s-1 + 140 μmol m-2 s-1）照射在番茄栽培品种（Solanum Lycopersicon cv. Moneymaker）上。Moneymaker）以及植物色素 A（phyA）和植物色素 B（phyB1 和 phyB2）的突变体上。光照强度和光周期都会影响植物的形态特征、叶片生物量和开花时间。与无 FR 的相应光照强度相比，无论基因型如何，LLFR 都会延迟开花，而 HLFR 则会加速开花。在低光照强度下，通过电子传递链的能量流量减少，同时每个反应中心的能量耗散减少，从而提高了 PSII 的最大量子产率，与基因型无关。HLFR 以依赖基因型的方式提高了净光合作用和气体交换特性。依赖 FR 的激素调节受到光信号的影响。在暴露于 FR 的植物中，PHYB 似乎影响脱落酸和水杨酸的水平，而 PHYA 则参与了 CK 的调节。总之，光照强度和 FR 信号通过改变电子传递、气体交换和内源激素水平的变化来影响植物的光合作用和生长。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

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.