Acta Physiologiae Plantarum最新文献

{"title":"Nitric oxide application improves photosynthetic light-response through enhancing photosystem II efficiency of bean plants (Phaseolus vulgaris L.) submitted to manganese stress","authors":"Yathreb Mahjoubi,&nbsp;Robyn Emmerson,&nbsp;Oussama Kharbech,&nbsp;Marouane Ben Massoud,&nbsp;Phillip Davey,&nbsp;Wahbi Djebali","doi":"10.1007/s11738-025-03779-4","DOIUrl":"10.1007/s11738-025-03779-4","url":null,"abstract":"<div><p>Toxicity of manganese (Mn) affects plant metabolism, leading to tissue dysfunction and reduced yields. Excessive Mn levels interfere with photosynthesis and cause oxidative stress, damaging cellular structures and impairing plant development. This study examines the role of nitric oxide (NO), a molecule enhancing cellular antioxidant defenses, in mitigating Mn stress in bean (<i>Phaseolus vulgaris</i> L.) plants. Manganese at 500 µM impaired plant biomass and led to Mn accumulation in roots and shoots, reducing carbon assimilation (A) and decreasing stomatal conductance (gs) and transpiration (E) rates. Despite Mn stress, chlorophyll fluorescence and photosystem II function, remained stable, while non-photochemical quenching (NPQ) increased. Application of sodium nitroprusside (SNP, as NO donor) to Mn-stressed plants ameliorated biomass yield through enhancing A, gs, and E rates, thus improving light energy use. This was accompanied by reduced glutathione-ascorbate cycle enzyme activities in leaves. These findings underscore the dual role of SNP in enhancing Mn stress tolerance in bean plants possibly by facilitating Mn compartmentalization within roots, protecting shoots from toxicity, thereby the photosynthetic machinery and promoting plant growth. This study highlights SNP's potential in managing metal stress in plants, with implications for improving agricultural productivity under adverse environmental conditions.</p></div>","PeriodicalId":6973,"journal":{"name":"Acta Physiologiae Plantarum","volume":"47 2","pages":""},"PeriodicalIF":2.4,"publicationDate":"2025-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143109895","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Does drought have a significant impact on the allelopathy of invasive plant Bidens pilosa L. from two different distribution regions?","authors":"Yue Li,&nbsp;Chuang Li,&nbsp;Yingsheng Liu,&nbsp;Huanshi Zhang,&nbsp;Zhelun Xu,&nbsp;Shanshan Zhong,&nbsp;Congyan Wang,&nbsp;Daolin Du","doi":"10.1007/s11738-025-03776-7","DOIUrl":"10.1007/s11738-025-03776-7","url":null,"abstract":"<div><p>The allelopathy of invasive plants on the growth performance of neighboring species is a crucial factor in their successful invasion. Drought can affect this interference. Numerous invasive plants, including <i>Bidens pilosa</i> L., can be distributed in different regions in China. This study aimed to analyze the allelopathy of the invasive Asteraceae plant <i>B. pilosa</i> (using its aqueous leaf extracts) from two distribution regions (a low-latitude region and a high-latitude region) in southern China on the seed germination and seedling growth of the Asteraceae plant <i>Lactuca sativa L.</i> under drought (simulated using Polyethylene glycol-6000). <i>Bidens pilosa</i> extracts from the low-latitude region induced greater allelopathy on <i>L. sativa</i> than those from the high-latitude region. Drought intensified the allelopathy of <i>B. pilosa</i> extracts on the seed germination and seedling growth of <i>L. sativa</i>. <i>Bidens pilosa</i> extracts from the low-latitude region posed greater allelopathy on <i>L. sativa</i> than those from the high-latitude region under light drought. However, <i>B. pilosa</i> extracts from the high-latitude region exhibited greater allelopathy on <i>L. sativa</i> than those from the low-latitude region under heavy drought. The intensified allelopathy of <i>B. pilosa</i> extracts on the seed germination and seedling growth of neighboring species under drought may be beneficial to its invasion process. Therefore, it is imperative to eradicate <i>B. pilosa</i> as expeditiously as possible in the habitats where seeds of neighboring species are sown to reduce the allelopathy of <i>B. pilosa</i> on the growth performance (particularly the seed germination and seedling growth) of neighboring species, especially under drought.</p></div>","PeriodicalId":6973,"journal":{"name":"Acta Physiologiae Plantarum","volume":"47 2","pages":""},"PeriodicalIF":2.4,"publicationDate":"2025-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143109819","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Pb tolerance in Echinodorus grandiflorus through the maintenance of root growth, nutrient uptake, and changes in the root cortical anatomy","authors":"Estefânia Santos Ribeiro,&nbsp;Marcio Paulo Pereira,&nbsp;Evaristo Mauro de Castro,&nbsp;Gabriel de Resende Baroni,&nbsp;Maxwell Pereira de Pádua,&nbsp;Fabricio José Pereira","doi":"10.1007/s11738-025-03773-w","DOIUrl":"10.1007/s11738-025-03773-w","url":null,"abstract":"<div><p>Lead (Pb) is a toxic pollutant for plants and animals that has increased in abundance worldwide; and aquatic environments are among those sensitive to Pb contamination. This study aimed to evaluate the effects of Pb on nutrient uptake, growth, and root anatomy in <i>Echinodorus grandiflorus</i>. Experiments were established with <i>E. grandiflorus</i> plants exposed to 0, 0.75, 1.5, 3.0, and 9.0 μM Pb(NO₃)₂ in nutrient solution. The plants were kept under these conditions for 60 days. At the end of the experiment, the concentrations of lead, macro-, and micronutrients, plant growth, and changes in root anatomy were evaluated. <i>E. grandiflorus</i> absorbed Pb proportionally to the concentrations applied in the nutrient solution. The species also showed changes in the absorption of N, P, K, Mg, S, Ca, Cu, Mn, Zn, and Fe. However, at all Pb concentrations, the modified absorption of these nutrients was still adequate for the plant and did not demonstrate evident toxicity. Root growth was not significantly altered, and root anatomy analysis revealed increased proportions of aerenchyma in the cortex to the detriment of exodermis and even endodermis at higher Pb concentrations. Therefore, <i>E. grandiflorus</i> plants demonstrate the potential for remediating Pb-contaminated environments due to their ability to absorb Pb without nutritional disturbances or disruptions in root structure and growth.</p></div>","PeriodicalId":6973,"journal":{"name":"Acta Physiologiae Plantarum","volume":"47 2","pages":""},"PeriodicalIF":2.4,"publicationDate":"2025-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143109620","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Application of silver and selenium nanoparticles to enhance plant-defense response against biotic stressors","authors":"Anielkis Batista,&nbsp;Van Chung Mai,&nbsp;Katarzyna Sadowska,&nbsp;Mateusz Labudda,&nbsp;Philippe Jeandet,&nbsp;Iwona Morkunas","doi":"10.1007/s11738-025-03768-7","DOIUrl":"10.1007/s11738-025-03768-7","url":null,"abstract":"<div><p>The present review discusses the role of silver (AgNPs) and selenium (SeNPs) nanoparticles at different concentrations in the regulation of plant defence responses to the biotic stressors. Study of the role of the above nanoparticles (NPs) has generated considerable interest because these caused significant changes in the framework of plant growth and their metabolism and play an important role in responses to biotic stress factors. Numerous results of metabolomics studies provide evidence that NPs change the profile of metabolites and their concentrations. NPs were applied as potential tools to improve the growth of plants, plant tolerance to abiotic stresses and food production, but research on the environmental safety of their use in agriculture is still necessary. The response of plants to the application of NPs depends on their concentration, plant species, exposure time and stage of development.</p></div>","PeriodicalId":6973,"journal":{"name":"Acta Physiologiae Plantarum","volume":"47 2","pages":""},"PeriodicalIF":2.4,"publicationDate":"2025-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11738-025-03768-7.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143109452","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Does the phosphorylation of MAP65-1 correlate with the effects of Cr(VI) on Arabidopsis thaliana microtubules?","authors":"Ioannis-Dimosthenis S. Adamakis,&nbsp;Eleftherios P. Eleftheriou","doi":"10.1007/s11738-024-03765-2","DOIUrl":"10.1007/s11738-024-03765-2","url":null,"abstract":"<div><h3>Key message</h3><p>MAP65-1 phosphorylation mediates Cr(VI)-induced microtubule disruption in plants.</p><h3>Abstract</h3><p>Chromium (Cr) exists in two prevalent forms in the environment: trivalent Cr(III) and hexavalent Cr(VI). While Cr(III) can benefit plants as a micronutrient, Cr(VI) is highly toxic and disrupts essential physiological, biochemical, and cellular processes in plants. Plant cell microtubules (MTs) are particularly susceptible to Cr(VI) toxicity, with MAP65-1, a key microtubule-associated protein, playing a crucial role in stabilizing MTs by forming cross-bridges between them. The stability function of MAP65-1 is influenced by its phosphorylation status: phosphorylation causes MAP65-1 to detach from MTs during different cell cycle phases. This study investigated how Cr(VI) affects MAP65-1 presence on cortical MTs in <i>Arabidopsis thaliana</i> roots and hypocotyls. Seedlings expressing GFP:AtMAP65-1 and its non-phosphorylatable variant, AtMAP65-1^9A (GFP:AtMAP65-1^9A), were exposed to 100 μM potassium dichromate (K₂Cr₂O₇, Cr(VI)) on ½ MS solid medium for 24 or 48 h. Confocal laser scanning microscopy (CLSM) revealed that Cr(VI) began impacting cortical MTs within 24 h. The signal intensity of GFP indicated a significant reduction in MAP65-1 presence, whereas the GFP:AtMAP65-1^9A signal remained stable and MTs were unaffected. These results suggest that Cr(VI) toxicity to MTs is linked to MAP65-1’s phosphorylation status.</p></div>","PeriodicalId":6973,"journal":{"name":"Acta Physiologiae Plantarum","volume":"47 2","pages":""},"PeriodicalIF":2.4,"publicationDate":"2025-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11738-024-03765-2.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143109143","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Assessment of the xenobiotic effects of 2,4-dichlorophenoxyacetic acid + 2-methyl-4-chlorophenoxyacetic acid and bromoxynil + 2-methyl-4-chlorophenoxyacetic acid herbicides in wheat","authors":"Sommayeh Abbasyan,&nbsp;Seyedali Peyghambari,&nbsp;Mohhamad-Reza Bihamta,&nbsp;Reza Maali-Amiri,&nbsp;Hassan Alizade","doi":"10.1007/s11738-024-03755-4","DOIUrl":"10.1007/s11738-024-03755-4","url":null,"abstract":"<div><p>Herbicides are xenobiotic compounds. To investigate the xenobiotic effects of foliar herbicide consumption and plant response over time, two commercial selective herbicides (bromoxynil + 2,4-D (H₁), 2,4-D + 2-MCPA (H₂), and the control (zero, H₀)) were applied to seven Iranian wheat genotypes at 50% tillering. The biochemical traits were measured at six-time intervals (0–30th days after treatment). Morphological traits were measured on the 30th day after treatment. The results showed that the applied treatments significantly affected all the measured traits (<i>P</i> &lt; 0.001). Therefore, these traits can be considered screening responses to xenobiotic stress caused by herbicides. For the first time, qualitative Bendict’s reagent quantification and estimation of the proximate content of sucrose as well as the 3,5-dinitrosalicylic acid reagent showed significant variation among genotypes. The change in the treated sample compared to H₀ showed that the effects of stress started at least 30 min after treatment. Consequently, the tolerant plants recovered on the 30th day after treatment. Clustering of the 20 measured traits showed that height, specific leaf weight, and chlorophyll <i>a</i> content could be selected as indicator traits for genotype screening. The genotypes were classified into three groups (sensitive, semi-sensitive, and tolerant) based on indicator traits. The maximum H₂O₂ concentration (a biochemical indicator of the occurrence of stress) was 980.5 µg at 30 min after treatment with H₂ and 735.1 µg on 1th day after treatment with H₁. Finally, the genotypes showed greater sensitivity to the combination herbicide from two biochemical groups of the same type (H₂) than did those from different groups (H₁).</p></div>","PeriodicalId":6973,"journal":{"name":"Acta Physiologiae Plantarum","volume":"47 2","pages":""},"PeriodicalIF":2.4,"publicationDate":"2025-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143109145","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Exogenous naphthaleneacetic acid (NAA) mitigated the alkaline stress changes in the growth and physio-biochemical performance of maize (Zea mays L.) seedlings","authors":"Babar Iqbal,&nbsp;Arshad Jalal,&nbsp;Naveed Ahmad,&nbsp;Mohammad K. Okla,&nbsp;Hamada Abd Elgawad,&nbsp;Mohamed A. El-Tayeb,&nbsp;Abdel-Rhman Z. Gaafar,&nbsp;Guanlin Li,&nbsp;Daolin Du","doi":"10.1007/s11738-024-03759-0","DOIUrl":"10.1007/s11738-024-03759-0","url":null,"abstract":"<div><p>Naphthaleneacetic acid (NAA) is a synthetic plant hormone, considered to promote plant growth under optimal and stressful conditions. However, its role in regulating the response of crop species, including maize, to alkaline stress (AS) remains largely unknown. In this study, we investigated the effects of exogenous NAA application (160 mg/L) on growth, antioxidant potential, nitrogen assimilation, and ion regulation in maize seedlings subjected to different levels of alkaline stress (0, 30, 60, and 90 mM [1:1 ratio of Na₂CO₃ and NaHCO₃]). We observed that increased alkaline stress) levels significantly increased the concentration of Na⁺, Cl⁻, H₂O₂, and malondialdehyde (MDA), but reduced K⁺ and Mg²⁺ ions compared to control (CK) maize seedlings. Furthermore, glycine betaine, proteins, proline, sugar, and antioxidant enzymes (superoxide dismutase, glutathione reductase, peroxidase, dehydroascorbate reductase, and catalase) were significantly increased, while NO₃⁻ and NH₄⁺ metabolizing enzymes (nitrate reductase, glutamine synthetase, and glutamine oxoglutarate aminotransferase) were significantly reduced. AS induced a negative impact on maize seedlings, which was highly dependent on the concentration of exogenous NAA. Where NAA application reduced Na⁺, Cl⁻, H₂O₂, and MDA levels, but increased K⁺, enriched organic solutes, antioxidant enzyme potential, and N metabolism, and ameliorated stress damage under AS conditions. Conclusively, the NAA application mitigated the adverse effects of AS on maize seedlings. Consequently, it might be an effective strategy for improving morpho-physiological performance in alkalinity-prone areas. However, future molecular studies should examine whether NAA can positively alter maize nutrient composition and thus help resolve nutritional problems in developing countries suffering from alkaline soil.</p></div>","PeriodicalId":6973,"journal":{"name":"Acta Physiologiae Plantarum","volume":"47 2","pages":""},"PeriodicalIF":2.4,"publicationDate":"2025-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143109022","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Different species of Tillandsia can be biomonitors of carbon and nitrogen emissions: the case of a tropical metropolitan area in Mexico","authors":"Paula E. Tirado-Zamora,&nbsp;Yareni Perroni,&nbsp;Edison A. Díaz−Álvarez","doi":"10.1007/s11738-024-03762-5","DOIUrl":"10.1007/s11738-024-03762-5","url":null,"abstract":"<div><p>Air pollution affects human health and ecosystems all over the world. However, little attention is paid to its monitoring in tropics, mainly due to the high costs of automated monitoring systems. Biomonitoring may be an alternative, particularly for species of <i>Tillandsia</i> genus, although most species are not yet calibrated for this purpose. Therefore, 1) to determine the biomonitoring potential of <i>T. juncea</i> and <i>T. schiedeana</i> and, 2) to compare the sources and magnitudes of atmospheric pollutants at five urban parks and one rural site in a tropical metropolitan area in Mexico, we measured the elemental and isotopic composition of carbon and nitrogen of four <i>Tillandsia</i> species. Carbon content was consistent across sites and species with no differences. The nitrogen content showed a clear trend of increasing from rural to urban areas, with significantly higher values observed in urban environments. The more negative δ¹³C values were recorded in urban parks, while less negative values were recorded in rural areas, reflecting differences in environmental CO₂ sources. Similarly, δ¹⁵N values were more negative in rural sites and shifted toward positive values in urban areas, showing the influence of anthropogenic nitrogen sources. These highlight the different environmental conditions across the rural and urban landscape. The four species can be used as biomonitors of C and N emissions, since their specific variations reflect the source and concentration of these atmospheric pollutants. Furthermore, the tillandsias showed that pollution in the metropolitan area is different depending on the activity at each site.</p></div>","PeriodicalId":6973,"journal":{"name":"Acta Physiologiae Plantarum","volume":"47 2","pages":""},"PeriodicalIF":2.4,"publicationDate":"2025-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143109146","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Selenium agronomic biofortification and genotypic variability in physiological responses of cowpea plants under field conditions","authors":"Elcio Ferreira Santos,&nbsp;Eduardo Comparsi Filho,&nbsp;Luiz Eduardo Morais Fernandes Fontes,&nbsp;Mateus Andrey Pires Silva,&nbsp;Gutierres Nelson Silva,&nbsp;Alexandre Alonso Oliveira,&nbsp;Maurisrael de Moura Rocha,&nbsp;Vinícius Martins Silva,&nbsp;André Rodrigues Reis","doi":"10.1007/s11738-025-03769-6","DOIUrl":"10.1007/s11738-025-03769-6","url":null,"abstract":"<div><p>Despite its importance as a vital nutrient for animals and humans, selenium (Se) deficiency in plants and human diets is a significant concern due to its low soil concentrations. Cowpea (<i>Vigna unguiculata</i>), a resilient crop widely cultivated in developing nations, shows potential for agronomic biofortification with Se. However, its genotypic diversity and ability to improve essential element uptake are often overlooked in breeding programs. This study aimed to evaluate the impact of Se biofortification in 20 cowpea genotypes, specifically examining the physiological responses related to photosynthetic pigments in leaves, nitrogen compounds, and sugar concentration in grains. Results revealed that Se application led to an increased cowpea yield. Additionally, all genotypes exhibited elevated sucrose and total sugar concentrations in grains, along with increased photosynthetic pigment levels in leaves upon Se supplementation. Notably, the application of Se resulted in increased allantoin, allantoic acid, and total ureide concentrations in all genotypes with highest yield, indicating enhanced nitrogen fixation in cowpea plants by Se in this genotype. These findings provide valuable insights into the potential of Se biofortification to improve the nutritional quality of cowpea grains by increasing Se and sugar concentrations, ultimately enhancing crop yields through improved nitrogen metabolism. This information can guide future breeding programs aimed at enhancing cowpea grain quality and nutritional value through biofortification strategies.</p></div>","PeriodicalId":6973,"journal":{"name":"Acta Physiologiae Plantarum","volume":"47 2","pages":""},"PeriodicalIF":2.4,"publicationDate":"2025-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143109147","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effects of green and chemically synthesized ZnO nanoparticles on Capsicum annuum under drought stress","authors":"Aysin Guzel Deger,&nbsp;Sertan Çevik,&nbsp;Oskay Kahraman,&nbsp;Ersan Turunc,&nbsp;Ayşegül Yakin,&nbsp;Rıza Binzet","doi":"10.1007/s11738-025-03767-8","DOIUrl":"10.1007/s11738-025-03767-8","url":null,"abstract":"<div><p>Nanoparticle applications have recently become a popular method due to increase the tolerance levels of plants to environmental stresses. In this study, changes induced by exogenous application of green synthesized and commercially purchased zinc oxide nanoparticles (ZnO NPs) (100, 500, 1000 mg/L) to drought-stressed <i>Capsicum annuum</i> plants were studied through comprehensive morphologic, anatomic, physiological and biochemical analyzes. While drought decreased relative water content (RWC) and leaf water potential (LWP), it increased proline, thiobarbituric acid reactive substances (TBARS) content and antioxidant enzyme activities. Exogenous ZnO NPs increased RWC and LWP but they decreased TBARS and proline contents in drought-stressed plants. Furthermore, the data obtained in this study revealed that the response of the antioxidant enzyme varies depending on the concentration of the nanoparticles and the type of synthesis. However, green synthesized ZnO NPs applications (100 and 500 mg/L) were found to be much more effective in reducing the adverse effects of drought stress than those synthesized chemically. The results of this study indicated that although the response of <i>Capsicum annuum</i> plants to ZnO NPs applications varied according to the type and concentration under drought conditions, nanoparticle applications did not lead to a consistent stress response.</p></div>","PeriodicalId":6973,"journal":{"name":"Acta Physiologiae Plantarum","volume":"47 2","pages":""},"PeriodicalIF":2.4,"publicationDate":"2025-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11738-025-03767-8.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143109144","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}