Journal of plant physiology最新文献_第2页

Sugar sensors in plants: Orchestrators of growth, stress tolerance, and hormonal crosstalk

IF 4 3区生物学

Journal of plant physiology Pub Date : 2025-02-28 DOI: 10.1016/j.jplph.2025.154471

Laha Supriya , Deepika Dake , Nyanthanglo Woch , Prodosh Gupta, Kodetham Gopinath, Gudipalli Padmaja, Mehanathan Muthamilarasan

{"title":"Sugar sensors in plants: Orchestrators of growth, stress tolerance, and hormonal crosstalk","authors":"Laha Supriya , Deepika Dake , Nyanthanglo Woch , Prodosh Gupta, Kodetham Gopinath, Gudipalli Padmaja, Mehanathan Muthamilarasan","doi":"10.1016/j.jplph.2025.154471","DOIUrl":"10.1016/j.jplph.2025.154471","url":null,"abstract":"<div><div>Sugars, vital metabolites for cellular health, play a central role in regulating diverse intracellular pathways that control plant growth and development. They also enhance stress responses, enabling plants to endure adverse conditions. A few intracellular molecules involved in sensing the intracellular sugar content and concomitantly facilitating appropriate response (growth or survivability) are known as sugar sensors. Among the numerous sugar sensors identified in plants, this review focuses on four extensively studied sugar sensors, namely hexokinase (HXK), Sucrose non-fermenting 1-related kinase-1 (Snf1-related kinase-1 or SnRK1), Target of rapamycin (TOR), and trehalose 6-phosphate (T6P). This review explores the multifaceted functions of these sugar sensors, highlighting their critical role in balancing energy metabolism and coordinating physiological processes under optimal and adverse conditions. By analyzing their involvement in plant growth, development, and stress response, this review underscores the significance of these sensors throughout the plant life cycle. Furthermore, this review highlights the intricate interplay among these sugar sensors, demonstrating how their activities are finely tuned and interdependent. We also examined the crosstalk between these sugar sensors and phytohormones, fine-tuning plant responses to environmental stimuli. Altogether, this review elucidates the significance of sugar sensors as integrators of metabolic and hormonal signals, providing a comprehensive understanding of their pivotal roles in plant biology. This knowledge paves the way for potential agricultural innovations to enhance crop productivity and resilience in the face of climate change.</div></div>","PeriodicalId":16808,"journal":{"name":"Journal of plant physiology","volume":"307 ","pages":"Article 154471"},"PeriodicalIF":4.0,"publicationDate":"2025-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143549504","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Synthetic biology approaches to improve Rubisco carboxylation efficiency in C3 Plants: Direct and Indirect Strategies

IF 4 3区生物学

Journal of plant physiology Pub Date : 2025-02-27 DOI: 10.1016/j.jplph.2025.154470

Chuwen Cui , Mengting Shang , Zhigang Li , Jianwei Xiao

{"title":"Synthetic biology approaches to improve Rubisco carboxylation efficiency in C3 Plants: Direct and Indirect Strategies","authors":"Chuwen Cui , Mengting Shang , Zhigang Li , Jianwei Xiao","doi":"10.1016/j.jplph.2025.154470","DOIUrl":"10.1016/j.jplph.2025.154470","url":null,"abstract":"<div><div>Food security remains a pressing issue due to the growing global population and climate change, including the global warming along with increased atmospheric CO<sub>2</sub> levels, which can negatively impact C<sub>3</sub> crop yields. A major limitation in C<sub>3</sub> plants is the inefficiency of Ribulose-1,5-bisphosphate carboxylase/oxygenase (Rubisco) due to its low carboxylation activity and competing oxygenase activity. Improving Rubisco efficiency in C<sub>3</sub> plants is thus essential for improving photosynthetic performance. Recent advances in synthetic biology have introduced promising strategies to overcome these limitations. This review highlights the latest synthetic biology and gene transformation techniques aimed at optimizing Rubsico carboxylation efficiency. Next, direct approaches such as engineering Rubisco subunits by replacing plant Rubisco with proteins from other organisms are discussed. Additionally, indirect strategies involve modifications of Rubisco-interacting proteins and adjustment of Rubisco environment. We explore CO<sub>2</sub>-concentrating mechanisms (CCMs) based on pyrenoids and carboxysomes, which increase local CO<sub>2</sub> concentrations around Rubisco thus favouring the carboxylation reaction. Lastly, photorespiratory bypasses are also covered in this review.</div></div>","PeriodicalId":16808,"journal":{"name":"Journal of plant physiology","volume":"307 ","pages":"Article 154470"},"PeriodicalIF":4.0,"publicationDate":"2025-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143579461","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

HmGST9, an anthocyanin-related glutathione S-transferase gene, is essential for sepals coloration in Hydrangea macrophylla

IF 4 3区生物学

Journal of plant physiology Pub Date : 2025-02-25 DOI: 10.1016/j.jplph.2025.154466

Haixia Chen, Penghu Lei, Huijun Zhang, Yajing Wang, Xuan Li, Hui Jiang, Jiren Chen

{"title":"HmGST9, an anthocyanin-related glutathione S-transferase gene, is essential for sepals coloration in Hydrangea macrophylla","authors":"Haixia Chen, Penghu Lei, Huijun Zhang, Yajing Wang, Xuan Li, Hui Jiang, Jiren Chen","doi":"10.1016/j.jplph.2025.154466","DOIUrl":"10.1016/j.jplph.2025.154466","url":null,"abstract":"<div><div>Flower color is an important ornamental trait of <em>Hydrangea macrophylla</em>. The transport of anthocyanin from endoplasmic reticulum to vacuole for storage is the basis of flower color formation. Glutathione S-transferase (GST) plays an important role in this transport process. However, little is known about the <em>GST</em> genes involved in anthocyanin transport and their functions in <em>H. macrophylla</em>. In this study, the sepals of <em>H. macrophylla</em> ‘Blue Mom’ was used as the experimental material. The gene <em>HmGST9</em> that may be involved in anthocyanin accumulation was identified from the genome, and it was found to be located in the endoplasmic reticulum and tonoplast. Through <em>Arabidopsis tt19</em> mutant molecular complementation experiment, it was proved that <em>HmGST9</em> could restore anthocyanin accumulation in vegetative tissues of <em>Arabidopsis tt19</em> mutant, but could not restore the color of seed coat. In the sepals of <em>H. macrophylla</em>, virus-induced <em>HmGST9</em> gene silencing resulted in a significant decrease in anthocyanin content, and the structural genes and transcription factors in the anthocyanin biosynthesis pathway were also significantly down-regulated. In contrast, transient overexpression of <em>HmGST9</em> in sepals resulted in a significant increase in anthocyanin content and promoted the up-regulation of related structural genes and transport genes. These results indicate that <em>HmGST9</em> plays an important role in regulating the transport and accumulation of anthocyanins in <em>H. macrophylla</em>, and is of great significance for analyzing the molecular mechanism of flower color formation in <em>H. macrophylla</em>.</div></div>","PeriodicalId":16808,"journal":{"name":"Journal of plant physiology","volume":"307 ","pages":"Article 154466"},"PeriodicalIF":4.0,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143534428","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Impact of the potassium transporter TaHAK18 on wheat growth and potassium uptake under stressful K+ conditions

IF 4 3区生物学

Journal of plant physiology Pub Date : 2025-02-22 DOI: 10.1016/j.jplph.2025.154459

Tengfei Liu , Yanan Zhang , Yumin Xie , Ruipeng Yang , Mengying Yuan , Yanke Li , Haixia Xu , Xinli Zhu , Tengzhao Song , Xiyong Cheng

{"title":"Impact of the potassium transporter TaHAK18 on wheat growth and potassium uptake under stressful K+ conditions","authors":"Tengfei Liu , Yanan Zhang , Yumin Xie , Ruipeng Yang , Mengying Yuan , Yanke Li , Haixia Xu , Xinli Zhu , Tengzhao Song , Xiyong Cheng","doi":"10.1016/j.jplph.2025.154459","DOIUrl":"10.1016/j.jplph.2025.154459","url":null,"abstract":"<div><div>Potassium (K), an indispensable nutrient for plant growth and development, plays a crucial role in plant stress resistance. Within the K<sup>+</sup> regulatory network in plants, the HAK/KUP/KT gene family comprises a dominant group of K<sup>+</sup> transport proteins responsible for K<sup>+</sup> uptake and transport. This study functionally characterized the wheat gene <em>TaHAK18</em>, which encodes a putative K<sup>+</sup> transporter. Plasma membrane-localized TaHAK18 was significantly upregulated under low-K<sup>+</sup> conditions and showed tissue-specific expression, being most abundant in leaves. A functional analysis in yeast demonstrated that TaHAK18 complements K<sup>+</sup>-uptake deficiencies, confirming its role in K<sup>+</sup> transport. <em>Arabidopsis</em> plants overexpressing <em>TaHAK18</em> experienced enhanced growth under both low- and normal-K<sup>+</sup> conditions, with greater fresh weight, lateral root formation, and primary root length. Barley stripe mosaic virus-mediated gene silencing in wheat revealed that TaHAK18 is instrumental for K<sup>+</sup> accumulation and plant growth under low-K<sup>+</sup> stress. <em>TaHAK18</em> has the capacity to enhance the growth and the accumulation of K<sup>+</sup> in transgenic rice plants. These results indicated that TaHAK18 is a key regulator of K<sup>+</sup> uptake and homeostasis in wheat, with potential implications for improving plant tolerance to low-K<sup>+</sup> stress.</div></div>","PeriodicalId":16808,"journal":{"name":"Journal of plant physiology","volume":"307 ","pages":"Article 154459"},"PeriodicalIF":4.0,"publicationDate":"2025-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143508061","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Role of plant growth-promoting rhizobacteria in sustainable agriculture: Addressing environmental and biological challenges 植物生长促进根瘤菌在可持续农业中的作用：应对环境和生物挑战

IF 4 3区生物学

Journal of plant physiology Pub Date : 2025-02-19 DOI: 10.1016/j.jplph.2025.154455

Abdul Wahab , Farwa Batool , Gholamreza Abdi , Murad Muhammad , Shahid Ullah , Wajid Zaman

{"title":"Role of plant growth-promoting rhizobacteria in sustainable agriculture: Addressing environmental and biological challenges","authors":"Abdul Wahab , Farwa Batool , Gholamreza Abdi , Murad Muhammad , Shahid Ullah , Wajid Zaman","doi":"10.1016/j.jplph.2025.154455","DOIUrl":"10.1016/j.jplph.2025.154455","url":null,"abstract":"<div><div>This review underscores the importance of plant growth-promoting rhizobacteria (PGPR), fostering sustainability to address various environmental and biological issues. PGPR helps crops withstand salinity, nutrient deficiencies, and drought stress while tackling agricultural threats. Sustainable agriculture has emerged as a response to the social and economic problems farming practices face. Plants encounter obstacles from biotic stressors such as bacteria, viruses, nematodes, arachnids, and weeds that impede their growth. Furthermore, PGPR enhances plant growth through improved nutrient absorption and defense against pests. <em>Bacillus subtilis</em> utilizes indirect methods to combat diseases and protect plants from various diseases and pests. Additionally, PGPR acts as a bio-fertilizer that mitigates drought stress effects on crops in various regions worldwide. This review proposes strategies to boost productivity and improve bio-inoculant efficiency under real-world conditions. PGPR demonstrates its role in combating threats by influencing plant defense mechanisms, initiating systemic resistance responses, and regulating gene expression related to pathogen detection and defense signaling pathways. It maintains a balanced root microbiome by suppressing harmful microbial proliferation while promoting beneficial microbial interactions. Despite the challenges posed by technology and ethical considerations surrounding their modification, integrating PGPR into farming methods holds promise for sustainable agriculture. Given the increasing impact of climate change, PGPR plays a crucial role in improving crop resilience, enhancing soil quality, and reducing dependence on synthetic agricultural inputs.</div></div>","PeriodicalId":16808,"journal":{"name":"Journal of plant physiology","volume":"307 ","pages":"Article 154455"},"PeriodicalIF":4.0,"publicationDate":"2025-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143529804","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Phospholipid signaling in plant growth and development: Insights, biotechnological implications and future directions

IF 4 3区生物学

Journal of plant physiology Pub Date : 2025-02-17 DOI: 10.1016/j.jplph.2025.154454

Malika Oubohssaine , Mohamed Hnini , Karim Rabeh

{"title":"Phospholipid signaling in plant growth and development: Insights, biotechnological implications and future directions","authors":"Malika Oubohssaine , Mohamed Hnini , Karim Rabeh","doi":"10.1016/j.jplph.2025.154454","DOIUrl":"10.1016/j.jplph.2025.154454","url":null,"abstract":"<div><div>Phospholipid signaling is essential for plant growth and development, orchestrating cellular membrane dynamics and regulating physiological processes critical for environmental adaptation. Phosphatidic acid (PA) plays diverse roles in key plant functions, including facilitating pollen tube growth, protecting against H<sub>2</sub>O<sub>2</sub>-induced cell death, and modulating actin cytoskeleton polymerization. Additionally, PA influences abscisic acid (ABA) signaling, impacting ionic flux, stomatal movement, and superoxide production. Phospholipase D (PLD) emerges as a crucial regulator, potentially linking and orchestrating microtubule reorganization. Saturated fatty acids, produced through phospholipase A (PLA) activity, also regulate various cellular processes. In <em>Arabidopsis thaliana</em>, Defender Against Apoptotic Death1 (DAD1), a plastidic PC-PLA1, supports jasmonic acid (JA) biosynthesis, which is essential for pollen maturation and flower development. Phospholipid signaling significantly influences stomatal function, with phospholipases modulating stomatal closure. This signaling pathway also plays a critical role in root development, where phosphocholine (PCho) and PA regulate root growth and tip growth of root hairs. This review highlights the pivotal role of phospholipid signaling pathways in coordinating plant growth, development, and responses to environmental cues. It explores the roles of PLD and PA in signal transduction and membrane degradation, particularly in seed aging. Additionally, it discusses the biotechnological applications of plant lipids, including genetic engineering for nutritional enhancement and biofuel production. Despite recent advancements, challenges such as low yield remain obstacles to the widespread adoption of biodiesel technology.</div></div>","PeriodicalId":16808,"journal":{"name":"Journal of plant physiology","volume":"307 ","pages":"Article 154454"},"PeriodicalIF":4.0,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143487827","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Reduction of the geomagnetic field to hypomagnetic field modulates tomato (Solanum lycopersicum L. cv Microtom) gene expression and metabolomics during plant development

IF 4 3区生物学

Journal of plant physiology Pub Date : 2025-02-15 DOI: 10.1016/j.jplph.2025.154453

Giuseppe Mannino, Ambra S. Parmagnani, Massimo E. Maffei

{"title":"Reduction of the geomagnetic field to hypomagnetic field modulates tomato (Solanum lycopersicum L. cv Microtom) gene expression and metabolomics during plant development","authors":"Giuseppe Mannino, Ambra S. Parmagnani, Massimo E. Maffei","doi":"10.1016/j.jplph.2025.154453","DOIUrl":"10.1016/j.jplph.2025.154453","url":null,"abstract":"<div><div>An interesting aspect that links the geomagnetic field (GMF) to the evolution of life lies in how plants respond to the reduction of the GMF, also known as hypomagnetic field (HMF). In this work, tomato plants (<em>Solanum lycopersicum</em> cv Microtom) were exposed either to GMF or HMF and were studied during the development of leaves and fruit set. Changes of expression of genes encoding for primary and secondary metabolites, including Reactive Oxygen Species (ROS), proteins, fatty acids, polyphenols, chlorophylls, carotenoids and phytohormones were assessed by qRT-PCR, while the corresponding metabolite levels were quantified by GC-MS and HPLC-MS. Two tomato homologs of the fruit fly magnetoreceptor MagR, <em>Isca-like 1</em> and <em>erpA 2</em>, were modulated by HMF, as were numerous tomato genes under investigation. In tomato leaves, positive correlations were observed with most of the genes associated with phytohormones production, ROS scavenging and production, and lipid metabolism, whereas an almost reversed trend was found in flowers and fruits. Interestingly, downregulation of <em>Isca-like 1</em> and <em>erpA 2</em> was found to correlate with an upregulation of most unripe fruit genes. Exposure to HMF reduced chlorophyll and carotenoid content, decreased photosynthetic efficiency and increased non-photochemical quenching. Auxins, gibberellins, cytokinins, abscisic acid, jasmonic acid and salicylic acid content and the expression of genes related to their metabolism correlated with tomato ISCA modulation. The results here reported suggest that <em>Isca-like 1</em> and <em>erpA</em> 2 might be important players in tomato magnetoreception.</div></div>","PeriodicalId":16808,"journal":{"name":"Journal of plant physiology","volume":"306 ","pages":"Article 154453"},"PeriodicalIF":4.0,"publicationDate":"2025-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143445706","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Characterization of a novel green-revertible albino mutant in alfalfa (Medicago sativa L.)

IF 4 3区生物学

Journal of plant physiology Pub Date : 2025-02-11 DOI: 10.1016/j.jplph.2025.154452

Jia Wei, Linghua Yang, Xia Wang, Zhengfeng Cao, Chuanjie Wang, Haowen Cheng, Bo Luo, Zhenwu Wei, Xueyang Min

{"title":"Characterization of a novel green-revertible albino mutant in alfalfa (Medicago sativa L.)","authors":"Jia Wei, Linghua Yang, Xia Wang, Zhengfeng Cao, Chuanjie Wang, Haowen Cheng, Bo Luo, Zhenwu Wei, Xueyang Min","doi":"10.1016/j.jplph.2025.154452","DOIUrl":"10.1016/j.jplph.2025.154452","url":null,"abstract":"<div><div>High-temperature-sensitive leaf color mutants are ideal materials for studying photosynthetic pigment biosynthesis and corresponding response mechanisms under heat stress. Here, we provide the first report of albinism occurrence in alfalfa and characterize the high-temperature albino regreen (<em>har</em>) mutant of alfalfa, which presents albino leaves when exposed to temperatures ≥35 °C and is not specific to developmental stage. Genetic analysis demonstrated that the albino trait exhibits dominant inheritance. Agronomic trait evaluations revealed that the <em>har</em> mutants were slightly but negatively affected by albinism. However, under high temperature, albino leaves had a severe negative effect on the photosynthesis-related traits of <em>har</em> mutants. Cytological analysis revealed that the albino leaf cells contained disintegrated chloroplasts, suggesting a defect in chloroplast development. Moreover, this study involved a comprehensive investigation of the enzymes associated with the photosynthetic pigment biosynthetic pathway of the <em>har</em> mutant under high-temperature stress using RNA sequencing. Notably, high-temperature-induced differential leaf color traits in alfalfa result in distinct photosynthetic pigment biosynthetic pathways. Twelve key regulatory genes involved in the chlorophyll biosynthesis and degradation pathways, as well as four key regulatory genes involved in carotenoid biosynthesis pathways, were identified. Our study aims to provide a theoretical foundation for further research into the intrinsic mechanisms underlying albino leaves in alfalfa <em>har</em> mutants subjected to high-temperature stress and for the breeding of new germplasms with desirable pigmented leaves.</div></div>","PeriodicalId":16808,"journal":{"name":"Journal of plant physiology","volume":"306 ","pages":"Article 154452"},"PeriodicalIF":4.0,"publicationDate":"2025-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143421726","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Reciprocal grafting reveals the role of gibberellins in tomato root-shoot communication

IF 4 3区生物学

Journal of plant physiology Pub Date : 2025-02-10 DOI: 10.1016/j.jplph.2025.154444

Rebeca Patrícia Omena-Garcia , José G. Vallarino , Paula da Fonseca-Pereira , Auxiliadora Oliveira Martins , Pedro Martino Brandão , Dimas M. Ribeiro , Sonia Osorio , Alisdair R. Fernie , Wagner L. Araújo , Adriano Nunes-Nesi

{"title":"Reciprocal grafting reveals the role of gibberellins in tomato root-shoot communication","authors":"Rebeca Patrícia Omena-Garcia , José G. Vallarino , Paula da Fonseca-Pereira , Auxiliadora Oliveira Martins , Pedro Martino Brandão , Dimas M. Ribeiro , Sonia Osorio , Alisdair R. Fernie , Wagner L. Araújo , Adriano Nunes-Nesi","doi":"10.1016/j.jplph.2025.154444","DOIUrl":"10.1016/j.jplph.2025.154444","url":null,"abstract":"<div><div>Gibberellins (GAs) serve a multitude of functions in the regulation of processes associated with plant growth and development. The GA demand of an organ can be met through long-range transport from the site of synthesis. To examine the impact of altered GA biosynthesis on metabolism and growth, we performed reciprocal grafts of wild-type (WT; <em>Solanum lycopersicum</em> L.) and mutants exhibiting varying degrees of GA-deficiency (<em>gib</em> lines). The relative growth rate, based on plant height and specific leaf area, of the <em>gib</em> scions demonstrated partial recovery upon grafting to a WT rootstock. In contrast, the WT scion demonstrated recovery of root biomass and the root/shoot ratio in plants with <em>gib</em> rootstocks. Although the majority of free amino acids accumulated and negatively affected root growth of the WT rootstock, while the levels of organic acids and sugars were reduced. Increased levels of sugars and decreased levels of branched-chain amino acids in the roots of <em>gib</em> rootstock suggested that were the main carbon source to sustain the root growth. The multivariate analysis demonstrated growth and metabolism adjustments of the WT rootstock to supply the higher GA demand of the <em>gib</em> scions. In contrast, the WT scion displayed relatively minor metabolic alterations to support high rates of root growth and a reduced GA demand by the <em>gib</em> rootstocks. In this context, the strategic use of grafting between WT plants and GA-deficient mutants offers a viable approach to boosting agricultural productivity and strengthening plant resilience against abiotic stresses, providing an innovative alternative for sustainable crop management under challenging environmental conditions.</div></div>","PeriodicalId":16808,"journal":{"name":"Journal of plant physiology","volume":"306 ","pages":"Article 154444"},"PeriodicalIF":4.0,"publicationDate":"2025-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143455090","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Small molecules and ions: Minor yet vital in plants

IF 4 3区生物学

Journal of plant physiology Pub Date : 2025-02-08 DOI: 10.1016/j.jplph.2025.154451

Shaowu Xue , Francisco J. Corpas , Luzia V. Modolo , Yanjie Xie , Quan-Sheng Qiu

引用次数: 0