Plant Stress最新文献

{"title":"Effects of temperature and light during the veraison period on grape berry growth","authors":"Qian Zha ,&nbsp;Haixia Zhong ,&nbsp;Meiling Tang ,&nbsp;Xiangjing Yin ,&nbsp;Pengpeng Sun ,&nbsp;Aili Jiang ,&nbsp;Xiaojun Xi ,&nbsp;Jiuyun Wu","doi":"10.1016/j.stress.2024.100642","DOIUrl":"10.1016/j.stress.2024.100642","url":null,"abstract":"<div><div>Temperature and light are key environmental factors in plant fruit development that affect fruit coloring, sugar accumulation, and softening. Here, grape berries were grown <em>in vitro</em> to investigate the effects of different temperatures and light treatments on their quality, with a focus on analyzing the effects of anthocyanin metabolism pathway genes and related metabolites. Both high temperature and low light affected grape coloring; however, differences were observed among varieties. Anthocyanins respond to high temperature and low light conditions through a balancing of metabolite types. The COP1–HY5 signaling pathway, which regulates the expression of <em>FLS4</em>, was affected by light and temperature. High temperatures were beneficial for sugar accumulation but resulted in fruit softening, and weak light affected sugar accumulation but did not cause fruit softening. This study was conducted to elucidate poor grape quality under high temperatures and weak lighting following a large-scale application of these conditions to facility-grown grapes. Our results provide valuable insights with respect to grape production. Effective cultivation measures should be considered to improve existing production problems and lay a solid theoretical foundation for growing high-quality grapes.</div></div>","PeriodicalId":34736,"journal":{"name":"Plant Stress","volume":"14 ","pages":"Article 100642"},"PeriodicalIF":6.8,"publicationDate":"2024-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142539753","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Development of genetically modified rust resistant wheat: A breakthrough by dinted introgression of novel DREB2C and HSFA2 genes under stress induced expression","authors":"Hina Firdous ,&nbsp;Arfan Ali ,&nbsp;Saira Saleem ,&nbsp;Abdul Razzaq ,&nbsp;Ghulam Mustafa ,&nbsp;Sezai Ercisli ,&nbsp;Khalid M. Elhindi ,&nbsp;Aqsa Ijaz ,&nbsp;Zunaira Anwar ,&nbsp;Muhammad Kashif ,&nbsp;Muhammad Hamza ,&nbsp;Muhammad Mubashar Zafar ,&nbsp;Wang Baotong ,&nbsp;Xuefei Jiang","doi":"10.1016/j.stress.2024.100636","DOIUrl":"10.1016/j.stress.2024.100636","url":null,"abstract":"<div><div>Wheat is a major staple food worldwide yet numerous yield limiting agents affect its productivity. Stripe rust is a major culprit in this context and efforts have been made to culminate this pathogen using conventional as well as advanced innovative techniques. Transgenic technology is of significant importance in this context and numerous success stories are evident to prove its worth. In the current study, two novel genes <em>HSFA2</em> and <em>DREB2C</em> were expressed in an elite wheat genotype Akbar, Fakhre-e-Bhakhar under constitutive CAMV35S promoter and stress inducible rd29 Promoters. The shoot cut method was used for the Agrobacterium-mediated transformation and putative transformants were selected on kanamycin 50 mg/L. The resultant transformants were tested through PCR for transgene integration whereas expression analysis was carried out through realtime qPCR. Expression of both of the aforementioned genes was found to be higher under rd29 promoter as compared with transgene(s) expression under CAMV35S promoter. In the bioassay, transgenic wheat plants demonstrated significant tolerance to stress, exhibiting only minor spotting under constitutive expression conditions. Upon exposure to stress, these plants showed exceptional resistance to stripe rust, producing large, bold grains compared to individual trait expressions and negative controls. Subsequently, the <em>DREB2C</em> gene was knocked out to determine if stripe rust control was specifically attributed to this gene. Following the knockout, the onset of stripe rust was comparable to that of the negative control. This led to the conclusion that pyramiding the <em>DREB2C</em> gene with <em>HSFA2</em> through dual expression represents a novel and highly effective strategy for controlling the widespread stripe rust in wheat. This approach also offers resistance to high temperatures (above 32 °C) from the pollination stage through to maturity.</div></div>","PeriodicalId":34736,"journal":{"name":"Plant Stress","volume":"14 ","pages":"Article 100636"},"PeriodicalIF":6.8,"publicationDate":"2024-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142539210","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Exploring the synergistic effects of drought and heat stress on chickpea seed development: Insights into nutritional quality and seed yield","authors":"Rashmi Awasthi ,&nbsp;Poonam Devi ,&nbsp;Uday Chand Jha ,&nbsp;Kamal Dev Sharma ,&nbsp;Manish Roorkiwal ,&nbsp;Sanjeev Kumar ,&nbsp;Ashwani Pareek ,&nbsp;Kadambot H.M. Siddique ,&nbsp;PV Vara Prasad ,&nbsp;Swarup K. Parida ,&nbsp;Harsh Nayyar","doi":"10.1016/j.stress.2024.100635","DOIUrl":"10.1016/j.stress.2024.100635","url":null,"abstract":"&lt;div&gt;&lt;div&gt;Growing chickpea (&lt;em&gt;Cicer arietinum&lt;/em&gt; L.) faces significant challenges due to rising temperatures and drought stress, particularly during the reproductive and seed-filling phases. This study investigated the single and joint impacts of drought and heat stress on seed development, focusing on the responses of drought-tolerant (DT) and drought-sensitive (DS) chickpea genotypes. Initially raised in an outdoor environment (mean day and night temperature of 27 and 16±1 °C, respectively, light intensity of 1230–1440 µmol &lt;em&gt;m&lt;/em&gt;&lt;sup&gt;−2&lt;/sup&gt; &lt;em&gt;s&lt;/em&gt;&lt;sup&gt;−1&lt;/sup&gt;, relative humidity of 70/43 %) until seed filling (around 110–113 days after sowing) commenced. The plants were subsequently exposed to single or combined heat and drought stress under controlled conditions until maturity. Control pots were maintained at day and night temperature of 25 and 15 °C, respectively with 500 µmol &lt;em&gt;m&lt;/em&gt;&lt;sup&gt;−2&lt;/sup&gt; &lt;em&gt;s&lt;/em&gt;&lt;sup&gt;−1&lt;/sup&gt; light, 60–65 % RH, and regular irrigation, and drought-stressed pots were kept at 50 % field capacity under the same conditions of light and humidity. Heat stress in pots was gradually increased to 32(day)/20 °C (night) under regular irrigation, while combined stress pots experienced both drought (50 % field capacity) and heat stress conditions 32(day)/20 °C (night) under the same light and humidity conditions with irrigation. All stress treatments adversely affected cell membranes, photosynthesis, and water regulation, with more pronounced effects under combined stress. While heat stress increased stomatal conductance, drought and combined stress significantly reduced it. Seed filling rate and duration decreased under all stress conditions, especially combined stress. The stresses in combination severely reduced seed weight and pod numbers compared to individual stresses. Enzyme activities involved in starch and sucrose synthesis and hydrolysis substantially decreased under the combined stress. Seed composition elements (starch, storage proteins, sugars, fat, crude fiber, and ash) exhibited significant reductions across all stress treatments, particularly for the combined stress. Thus, under combined stresses, starch, proteins, and soulube sugars were markedly decreased to 13–20 %, 6.4–12.4 %, and 3–5 % in seeds, compared to 37–39 %, 21–24 %, and 6 % in control seeds. The DT genotype outperformed the DS genotype for all traits under individual and combined stress conditions. Principal component analysis revealed a complex interplay among various physiological responses (membrane damage, chlorophyll, chlorophyll fluorescence, relative leaf water content, and stomatal conductance), seed yield, and seed composition under the combined stress. This study highlighted that combined heat and drought stress severely impacted chickpea yield and nutritional traits, such as seed starch and protein content, compared to individual stresses underscoring the need to develop cultivars tolerant to this stress combination.&lt;/d","PeriodicalId":34736,"journal":{"name":"Plant Stress","volume":"14 ","pages":"Article 100635"},"PeriodicalIF":6.8,"publicationDate":"2024-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142433522","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Overexpression of CrSMT gene enhances salt stress tolerance by improving cotton peroxidation resistance","authors":"Peilin Wang ,&nbsp;Xiurong Tan ,&nbsp;Weilong Li ,&nbsp;Xinyue Xu ,&nbsp;Chenhui Li ,&nbsp;Wenfang Guo ,&nbsp;Xiaofeng Su ,&nbsp;Hongmei Cheng ,&nbsp;Huiming Guo","doi":"10.1016/j.stress.2024.100633","DOIUrl":"10.1016/j.stress.2024.100633","url":null,"abstract":"<div><div>Salt stress is an important abiotic stress factor affecting crop production and plant geographical distribution. Salt stress negatively impacts molecular, biochemical, and physiological processes in cotton, resulting in inhibition of plant growth and development and, in severe cases, plant death. In this experiment, the <em>CrSMT</em> gene isolated from the unicellular eukaryote <em>Chlamydomonas reinhardtii</em> was overexpressed in cotton R15. Two transgenic lines, L17 and L25, were obtained. Treated with 200 mM NaCl experiments showed that the <em>CrSMT</em>-transgenic cotton had enhanced tolerance to salt stress. RNA-seq analysis revealed that <em>CrSMT</em> overexpression in cotton resulted in the synthesis of a large number of secondary metabolites responsive to salt stress. Correlation analysis between the wild type and the transgenic lines revealed that <em>CrSMT</em> overexpression did not affect the growth, agronomic traits, and fiber quality of cotton. The function of <em>CrSMT</em> holds potential to improve plant tolerance of abiotic stress factors.</div></div>","PeriodicalId":34736,"journal":{"name":"Plant Stress","volume":"14 ","pages":"Article 100633"},"PeriodicalIF":6.8,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142421976","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The role of natural and synthetic zeolites as soil amendments for mitigating the negative impacts of abiotic stresses to improve agricultural resilience","authors":"Ayesha Javaid ,&nbsp;Neelma Munir ,&nbsp;Zainul Abideen ,&nbsp;Zamin Shaheed Siddiqui ,&nbsp;Jean Wan Hong Yong","doi":"10.1016/j.stress.2024.100627","DOIUrl":"10.1016/j.stress.2024.100627","url":null,"abstract":"<div><div>Plants are exposed to different types of biotic and abiotic stresses that reduce growth and yield. The review presents the negative effects posed by salinity, water scarcity and phytotoxic metals to the agriculture sector and underscores the protective role of natural and synthetic zeolites to improve the unfavourable growth environment. Furthermore, based on extensive literature review, zeolites (specifically natural zeolites) possess extraordinary adsorption capacity, highly functional nutrient and water holding and releasing characteristics. The enhanced and selective nutrient retention capacity of zeolites enables lower nutrient loss from soil, thereby minimizing the issue of water pollution through the leaching of excessive nutrients. The adsorption potential of zeolites against Na⁺, Cl^- and various phytotoxic metals in soils improve the growth environment for the plants. Sepcifically, the addition of zeolites to soil facilitates improvements in water availability and better plant growth parameters: chlorophyll content, total protein concentration, and increased activity of antioxidant defense; eventually mitigating the unfavourable effects of environmental stresses such as extreme temperatures, drought or salinity. Natural zeolites, particularly clinoptilolite, were shown to be better in alleviating plant stresses such as salinity in comparison to synthetic zeolites; handling salt load of up to 100 mM of NaCl. Interestingly, zeolites can be used in combination with other substances such as compost, biochar or calcium-based materials to reduce salinity. The greater availability of hydrophilic active sites in zeolites enhances their water sorption strength, restricting the formation of liquid film required for growth of pathogens; delivering effective desiccant-like effects to protect the plants from several pathogens. In general, zeolite applications can be used as buffering agents to improve plant growth and to deliver better biological resilience during different unfavourable growth conditions.</div></div>","PeriodicalId":34736,"journal":{"name":"Plant Stress","volume":"14 ","pages":"Article 100627"},"PeriodicalIF":6.8,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142539174","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Plant hormesis: The energy aspect of low and high-dose stresses","authors":"Elena A. Erofeeva","doi":"10.1016/j.stress.2024.100628","DOIUrl":"10.1016/j.stress.2024.100628","url":null,"abstract":"<div><div>Hormesis is low-dose stimulation and high-dose inhibition. Various stressors (abiotic and biotic) can cause hormetic responses in plants. However, hormesis energy aspect remains insufficiently studied. This analysis examines the features of plant energy metabolism with high-dose (HDST) and low-dose (LDST) stressors. HDST cause significant damage and photoinhibition. Defense against HDST requires significant energy costs and, therefore, it is accompanied by a trade-off between growth and defense, as well as an increase in the dark respiration rate (the proportion of maintenance respiration increases). This can lead to negative energy budget (energy dissimilation exceeds energy assimilation) and a decrease in plant growth and productivity. LDST cause moderate damage. Defense against LDST does not require significant energy costs. Therefore, moderate defense activation eliminates damage and may increase photosynthesis and dark respiration efficiency. Apparently, both growth and maintenance components of dark respiration are increased. This leads to positive energy budget (energy assimilation exceeds energy dissimilation) and stimulates plant growth and productivity. Additionally, hormetic preconditioning increases plant resistance to HDST and prevents the significant energy loss to repair damage caused by HDST, thereby increasing yields. Notably, that only some doses of hormetic zone can optimize energy metabolism and increase plant productivity. This effect also depends on the development stage of stressed plants. The same stress signaling pathways (ABA, ROS signaling, etc.) may underlie changes in energy metabolism with HDST and LDST. Thus, these differences in plant energy metabolism with HDST and LDST should be accounted when conducting stress studies, including the development of DEB (Dynamic Energy Budget) models.</div></div>","PeriodicalId":34736,"journal":{"name":"Plant Stress","volume":"14 ","pages":"Article 100628"},"PeriodicalIF":6.8,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142433521","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Drought-tolerant plant growth-promoting rhizobacteria alleviate drought stress and enhance soil health for sustainable agriculture: A comprehensive review","authors":"Mohamed T. El-Saadony ,&nbsp;Ahmed M. Saad ,&nbsp;Dina Mostafa Mohammed ,&nbsp;Mohamed A. Fahmy ,&nbsp;Ibrahim Eid Elesawi ,&nbsp;Ahmed Ezzat Ahmed ,&nbsp;Uthman Balgith Algopishi ,&nbsp;Ahmed S. Elrys ,&nbsp;El-Sayed M. Desoky ,&nbsp;Walid F.A. Mosa ,&nbsp;Taia A. Abd El-Mageed ,&nbsp;Fardous I. Alhashmi ,&nbsp;Betty T. Mathew ,&nbsp;Synan F. AbuQamar ,&nbsp;Khaled A. El-Tarabily","doi":"10.1016/j.stress.2024.100632","DOIUrl":"10.1016/j.stress.2024.100632","url":null,"abstract":"<div><div>Climate change has exacerbated the impact of abiotic stresses, mainly drought, on plant production. Plant selection, breeding, and genetic engineering to increase drought tolerance are costly and time-consuming. To mitigate drought stress, plants employ adaptive mechanisms and interact with beneficial microorganisms, such as plant growth-promoting rhizobacteria (PGPR). Inoculating plant roots with various PGPR species promotes drought tolerance through a network of cellular, physiological, and biochemical mechanisms, including enhanced root elongation, increased phytohormone production, and synthesis of volatile organic compounds. PGPR colonization represents an environmentally sustainable agricultural technique that enhances plant growth, development, and yield by facilitating improved tolerance to environmental challenges. The current review provides an overview of the impact of drought stress on plant growth and development, detailing how PGPR induce physiological, morphological, and molecular responses to mitigate drought stress.</div></div>","PeriodicalId":34736,"journal":{"name":"Plant Stress","volume":"14 ","pages":"Article 100632"},"PeriodicalIF":6.8,"publicationDate":"2024-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142554825","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Olive mill wastewater as a source of defense-promoting by-products against microbial pathogens","authors":"Ascenzo Salvati ,&nbsp;Fabio Sciubba ,&nbsp;Alessandra Diomaiuti ,&nbsp;Gian Paolo Leone ,&nbsp;Daniele Pizzichini ,&nbsp;Daniela Bellincampi ,&nbsp;Daniela Pontiggia","doi":"10.1016/j.stress.2024.100623","DOIUrl":"10.1016/j.stress.2024.100623","url":null,"abstract":"<div><div>Olive oil is a core component of the Mediterranean diet known for its nutritional properties and health benefits. Olive industry is moving to novel extraction systems for higher oil yield and quality and for waste reduction, which is a relevant problem in the process due to its toxicity and high disposal costs. Multi-Phase Decanter (DMF) is a modern two-phase system performed without adding water during the process. Using DMF, a wet by-product indicated as pâté and consisting of the fruit pulp and vegetation water (VW) is recovered. The pâté has a high content of potentially bioactive molecules that may be exploited to promote plant resistance against microbial pathogens. In this work, to identify by/products of biological interest, the VW recovered from the pâté by centrifugation was subjected to fractionation by tangential-flow membrane filtration (TFMF), combining microfiltration (MF) and ultrafiltration (UF). High-resolution NMR spectroscopy indicated the presence of bioactive molecules such as flavonoids, hydroxytyrosol and oleuropein with known antimicrobial activity. High-Performance Anion Exchange Chromatography with Pulsed Amperometric Detection (HPAEC-PAD) was performed to detect the presence of pectic oligosaccharides in the fractions, showing the enrichment, in the UF-concentrate fraction, of oligogalacturonides (OGs), well known for the ability to elicit defense responses and protect plants against pathogen infections. <em>Arabidopsis thaliana</em> plants treated with TFMF fractions displayed induction of defense responses and exhibited tolerance against microbial pathogens without adverse effects on growth and fitness. This study shows that pâté by-products can potentially be exploited in agriculture as sustainable plant phyto-protectant.</div></div>","PeriodicalId":34736,"journal":{"name":"Plant Stress","volume":"14 ","pages":"Article 100623"},"PeriodicalIF":6.8,"publicationDate":"2024-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142421977","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Understanding Northern corn leaf blight (NCLB) disease resistance in maize: Past developments and future directions","authors":"Babar Ijaz,&nbsp;Xingming Fan","doi":"10.1016/j.stress.2024.100625","DOIUrl":"10.1016/j.stress.2024.100625","url":null,"abstract":"<div><div>Maize (<em>Zea mays</em> L.) is an essential food crop grown all over the world, extensively used as animal feed, human food, and to produce biofuel. Northern corn leaf blight (NCLB) is one of the most destructive foliar diseases that affect maize crop, causing significant yield losses globally. The most efficient method for controlling NCLB is thought to be a combination of quantitative regulation by several genes and varietal resistance based on <em>Ht</em> genes. Despite decades of developing varietal resistance and identifying hundreds of QTLs, the control of NCLB remains a major challenge for maize yield production. Modern genomics tools integration into molecular plant breeding is essential to identify significant loci for NCLB resistance. Genomics-assisted breeding (GAB), followed by precision phenotyping, is a prerequisite to understand the genetic makeup and molecular mechanisms of disease resistance. Genome-editing technique (CRISPR-Cas) has emerged as an effective tool to accelerate crop breeding programs for the disease resistance. This review attempts to convey an overview of the NCLB disease pathosystem, its global distribution, and breeding strategies utilized for NCLB resistance in maize. We propose that GAB and genome editing tools hold great potential for developing NCLB-resistant maize varieties.</div></div>","PeriodicalId":34736,"journal":{"name":"Plant Stress","volume":"14 ","pages":"Article 100625"},"PeriodicalIF":6.8,"publicationDate":"2024-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142422076","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Leaf carbohydrate metabolic enzyme activities are associated with salt tolerance and yield stability in the climate-resilient crop Camelina sativa","authors":"Peter Stasnik ,&nbsp;Johann Vollmann ,&nbsp;Dominik K. Großkinsky ,&nbsp;Claudia Jonak","doi":"10.1016/j.stress.2024.100629","DOIUrl":"10.1016/j.stress.2024.100629","url":null,"abstract":"<div><div>Soil salinity is an increasingly severe problem affecting plant growth and development thus posing a threat to agricultural production worldwide. Many crops currently grown are susceptible to even moderate salt stress, and crop diversification is sought to cope with increasingly challenging environmental conditions. <em>Camelina sativa</em> is a versatile, underutilized, low-input Brassicaceae oilseed crop valued for its high-quality seeds and its resilience to a wide range of climate conditions. In this study, the effects of salt stress on the growth and productivity of two camelina cultivars and six landraces from different geographic regions were examined. The performance of these lines was related to adjustments in their carbohydrate metabolic enzyme activity profiles in leaves as a central physiological hub. Profiling enzyme activities and their regulation in response to salt stress revealed significant genotype × treatment (<em>G</em> × <em>T</em>) interactions and allowed the identification of specific activity signatures associated with differences in yield stability in the tested lines. Yield-stable landraces showed distinct regulation patterns contrasting those of less yield-stable lines. In particular, upregulation of specific enzyme activities was associated with yield stability under salt stress. Camelina landraces may be promising resources to improve tolerance to salinity, with plasticity in carbohydrate metabolism as a contributing mechanism. Overall, these results provide a valuable basis for enzyme activity signatures as new physiological markers for supporting breeding programmes.</div></div>","PeriodicalId":34736,"journal":{"name":"Plant Stress","volume":"14 ","pages":"Article 100629"},"PeriodicalIF":6.8,"publicationDate":"2024-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142421970","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}