Journal of Plant Nutrition and Soil Science最新文献

{"title":"Impressum: J. Plant Nutr. Soil Sci. 2/2025","authors":"","doi":"10.1002/jpln.202570023","DOIUrl":"https://doi.org/10.1002/jpln.202570023","url":null,"abstract":"<p>ISSN 1436–8730 (print)</p><p>ISSN 1522–2624 (online)</p><p>© 2025 Wiley-VCH GmbH</p><p>Hermann Jungkunst (Soil Science),</p><p>Karl H. Mühling (Plant Nutrition)</p><p>Wiley-VCH GmbH, Boschstraße 12,</p><p>D-69469 Weinheim, Germany</p><p>E-mail: <span>[email protected]</span></p><p>Tel: +49 (0)6201 6060</p><p>Aptara, India</p><p>Printed in Germany by pva, Druck und Medien-Dienstleistungen GmbH, Landau.</p><p></p><p>Printed on acid-free paper</p><p>Sigrid Mehren</p><p>(E-mail: <span>[email protected]</span>)</p><p>Bettina Loycke</p><p>(E-mail: <span>[email protected]</span>)</p><p>For submission instructions, subscription and all other information visit: www.plant-soil.com</p><p>Journal of Plant Nutrition and Soil Science is published in 6 issues per year. Institutional subscription prices for 2025 are:</p><p>Print & Online: US$ 1944 (US and Rest of World), € 1484 (Europe), £ 996 (UK). Print only: US$ 1806 (US and Rest of World), € 1378 (Europe), £ 926 (UK). Online only: US$ 1731 (US and Rest of World), € 1321 (Europe), £ 887 (UK). Prices are exclusive of tax. Asia-Pacific GST, Canadian GST/HST and European VAT will be applied at the appropriate rates. For more information on current tax rates, please go to https://onlinelibrary.wiley.com/library-info/products/price-lists/payment. The institutional price includes online access to the current and all online backfiles for previous 5 years, where available. For other pricing options, including access information and terms and conditions, please visit https://onlinelibrary.wiley.com/library-info/products/price-lists. Terms of use can be found here: https://onlinelibrary.wiley.com/library-info/products/price-lists/title-by-title-terms-and-conditions.</p><p>Where the subscription price includes print issues and delivery is to the recipient's address, delivery terms are Delivered at Place (DAP); the recipient is responsible for paying any import duty or taxes. Title to all issues transfers Free of Board (FOB) our shipping point, freight prepaid.</p><p><b>Claims for Missing or Damaged Print Issues</b></p><p>Our policy is to replace missing or damaged copies within our reasonable discretion, subject to print issue availability, and subject to the terms: found at Section V, Part C at https://onlinelibrary.wiley.com/library-info/products/price-lists/title-by-title-terms-and-conditions#print-subscriptions</p><p>Journal of Plant Nutrition and Soil Science (ISSN 1436–8730), is published 6 times a year. US mailing agent: SPP, Po Box 437, Emigsville, PA 17318. Periodicals postage paid at Emigsville PA USA.</p><p>Postmaster: Send all address changes to Journal of Plant Nutrition and Soil Science, Wiley Periodicals LLC, C/O The Sheridan Press, PO Box 465, Hanover, PA 17331 USA.</p><p><b>Journal Customer Services</b>: For ordering information, claims and any enquiry concerning your journal subscription please visit our Online Customer Help at https://wolsupport.wiley.com/s/contactsupport or contact your neares","PeriodicalId":16802,"journal":{"name":"Journal of Plant Nutrition and Soil Science","volume":"188 2","pages":"170"},"PeriodicalIF":2.6,"publicationDate":"2025-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jpln.202570023","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143793705","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Editorial Board: J. Plant Nutr. Soil Sci. 2/2025","authors":"","doi":"10.1002/jpln.202570022","DOIUrl":"https://doi.org/10.1002/jpln.202570022","url":null,"abstract":"","PeriodicalId":16802,"journal":{"name":"Journal of Plant Nutrition and Soil Science","volume":"188 2","pages":"169"},"PeriodicalIF":2.6,"publicationDate":"2025-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jpln.202570022","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143793653","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Cover Picture: J. Plant Nutr. Soil Sci. 2/2025","authors":"","doi":"10.1002/jpln.202570021","DOIUrl":"https://doi.org/10.1002/jpln.202570021","url":null,"abstract":"<p>\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":16802,"journal":{"name":"Journal of Plant Nutrition and Soil Science","volume":"188 2","pages":"167"},"PeriodicalIF":2.6,"publicationDate":"2025-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jpln.202570021","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143793652","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Contents: J. Plant Nutr. Soil Sci. 2/2025","authors":"","doi":"10.1002/jpln.202570025","DOIUrl":"https://doi.org/10.1002/jpln.202570025","url":null,"abstract":"","PeriodicalId":16802,"journal":{"name":"Journal of Plant Nutrition and Soil Science","volume":"188 2","pages":"368"},"PeriodicalIF":2.6,"publicationDate":"2025-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jpln.202570025","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143793706","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Correction to “Biodegradable maleic–itaconic polymer-coated phosphatic fertilizer improved phosphorous recovery in calcareous soil”","authors":"","doi":"10.1002/jpln.202570024","DOIUrl":"https://doi.org/10.1002/jpln.202570024","url":null,"abstract":"<p>Khalid, M., Niazi, M. B. K., Haider, G. Jahan, Z., Zia, M., Ahmad, R., Hayat, A. (2024). Biodegradable maleic–itaconic polymer-coated phosphatic fertilizer improved phosphorous recovery in calcareous soil. Journal of Plant Nutrition and Soil Science, 187, 415–425. https://doi.org/10.1002/jpln.202300197</p><p>Tariq Shah has been removed from the list of authors. The United States Department of Agriculture (USDA) is listed as an affiliation of one of the authors of this article. However, USDA has notified us that the author, Tariq Shah, was never affiliated with the United States Department of Agriculture's Plant Science Research Unit, as claimed in the authorship credits nor was the article supported, reviewed or endorsed at any time by the USDA. Therefore, we are correcting the article at the request of the USDA.</p><p>We apologize for this error.</p>","PeriodicalId":16802,"journal":{"name":"Journal of Plant Nutrition and Soil Science","volume":"188 2","pages":"366"},"PeriodicalIF":2.6,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jpln.202570024","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143793947","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Assignment of Thermogravimetric Mass Losses to Soil Organic Matter, Its Fractions Hot Water–Extractable and Microbial Biomass Carbon, and Organic Matter–Stabilizing Soil Mineral Properties","authors":"Malte Ortner,&nbsp;Michael Seidel,&nbsp;Dörte Diehl,&nbsp;Michael Vohland,&nbsp;Sören Thiele-Bruhn","doi":"10.1002/jpln.202400498","DOIUrl":"https://doi.org/10.1002/jpln.202400498","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Background</h3>\u0000 \u0000 <p>The stability of soil organic matter (SOM) can be characterized by thermal analysis. Methods to determine the thermal stability of SOM have recently been increasingly applied in soil analysis. Most studies focus on organic carbon (OC), whereas its subfractions, for example, microbial biomass carbon (MBC) or hot water–extractable carbon (HWEC), representing fast-reacting pools, have been less investigated.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Aim</h3>\u0000 \u0000 <p>A set of 100 soil samples was analyzed for thermal mass losses and their relation to SOM and soil mineral phase properties.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Method</h3>\u0000 \u0000 <p>The temperature-dependent mass losses were determined by thermogravimetric analysis. For this purpose, soils differing in terms of parent material, soil texture, and land use were characterized and analyzed.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Temperature ranges of mass losses and corresponding fractions of different thermal stability (thermolabile and thermostable) were defined. SOM-related parameters were highly correlated with mass losses of the thermolabile fractions. Mass losses of thermostable matter were significantly correlated with soil mineral phase parameters. The soil thermostability index (STSI) was calculated as the ratio of thermolabile and thermostable mass proportions, represented by the mass losses of selected temperature intervals. Regressions of STSI with ratios of mineral phase parameters to OC (e.g., clay/OC), representing the saturation degree of the mineral phase with OC, HWEC, or MBC, yielded strong relationships.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusion</h3>\u0000 \u0000 <p>The saturation of the mineral phase with OC determines the thermal stability of OC. Overall, relevant factors for OC thermal stability were identified. OC and HWEC were significantly correlated with thermal stability and mineral phase saturation. For MBC, no such relationship was found, indicating that its stability is driven by other factors.</p>\u0000 </section>\u0000 </div>","PeriodicalId":16802,"journal":{"name":"Journal of Plant Nutrition and Soil Science","volume":"188 2","pages":"334-349"},"PeriodicalIF":2.6,"publicationDate":"2025-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jpln.202400498","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143793297","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Nano Nutrient Foliar Application: Impacts on Yield, Quality, and Nutrient Efficiency in Dryland Finger Millet","authors":"Ziya Ul Huq,&nbsp;B. G. Vasanthi,&nbsp; Mudalagiriyappa,&nbsp;M. A. Sneha,&nbsp;M. C. Harish,&nbsp;K. Devaraja,&nbsp;H. S. Latha,&nbsp;K. A. Gopinath,&nbsp;V. Visha Kumari,&nbsp;Tarunendu Singh,&nbsp;M. R. Krupashankar,&nbsp;Vinod Kumar Singh","doi":"10.1002/jpln.202300294","DOIUrl":"https://doi.org/10.1002/jpln.202300294","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Background</h3>\u0000 \u0000 <p>Nitrogen and zinc are the most critical macro- and micronutrients that significantly determine the crop productivity. Foliar application of these nutrients is a proven technology to abate acute deficiency at any crop-growing stage. Recent developments in the field of nanotechnology such as spraying of nano-urea and nano zinc in combination with conventional fertilizers enhance crop growth and nutrient use efficiency (NUE) of crop.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Aim</h3>\u0000 \u0000 <p>This investigation assessed the impact of nano nutrient foliar sprays on the growth, yield, qualitative and quantitative traits, and nutrient utilization efficiency of finger millet.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>Experiment was conducted at AICRP for Dryland Agriculture, UAS, GKVK, Bengaluru during <i>Kharif</i> 2021 with finger millet as test crop. It comprises 12 treatments with different levels of nitrogen in combination with foliar application of nano nutrients at 35 and 55 DAS.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Foliar application of nano-N and nano-Zn along with 100% RDN + recommended PK in finger millet significantly enhanced the growth, yield, and nutrient utilization efficiency of finger millet. Application of 100% RDF + foliar spray of nano-N and nano-Zn recorded the highest grain yield (3486 kg ha⁻¹) and straw yield (4810 kg ha⁻¹), significantly outperforming treatments with conventional fertilizers alone. This treatment also improved the qualitative attributes such as the number of ear heads (6.53), length of ear heads (6.95 cm), and dry weight per plant (146.80 g). Similar was the trend with antioxidant enzymes, namely, catalase and peroxidase activity, proximate composition of finger millet grain with higher crude protein (8.88%), crude fiber (2.90%), ash (2.40%), and fat (1.46%). Moreover, this treatment also recorded the highest economic returns, with gross returns of Rs. 108,192 ha⁻¹ and net returns of Rs. 79,579 ha⁻¹, making it the most effective and beneficial strategy for finger millet cultivation under dryland conditions.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusion</h3>\u0000 \u0000 <p>The productivity and NUE of finger millet were higher with foliar application of nano nutrients along with 75% RDN + recommended PK and were found to be cost-effective compared to conventional fertilizers alone.</p>\u0000 </section>\u0000 </div>","PeriodicalId":16802,"journal":{"name":"Journal of Plant Nutrition and Soil Science","volume":"188 2","pages":"350-365"},"PeriodicalIF":2.6,"publicationDate":"2025-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143793387","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Wheat Growth, Yield and Metal Uptake From a Cadmium and Lead Contaminated Soil Following Pressmud and Phosphate Fertilizer Application","authors":"Basit Haider,&nbsp;Muhammad Imran,&nbsp;Muhammad Ashraf","doi":"10.1002/jpln.202400217","DOIUrl":"https://doi.org/10.1002/jpln.202400217","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Background</h3>\u0000 \u0000 <p>The use of wastewater for crop irrigation may introduce toxic metals into soils, leading to the contamination of food crops. This may result in reduced crop productivity and food adulteration.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Aims</h3>\u0000 \u0000 <p>This study aimed to characterize pressmud (PM) and to evaluate the effect of PM and single super phosphate (SSP) on wheat yield and the associated health risks of consuming wheat grains grown on metal-contaminated soil.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methodology</h3>\u0000 \u0000 <p>Eight PM samples, collected from different sugar industries, were characterized. Subsequently, a pot experiment was conducted on a metal-contaminated soil to evaluate the effect of PM (control, 10 and 20 g kg⁻¹ soil) and SSP (0 and 250 mg kg⁻¹ soil) on wheat growth, yield, metal concentration in grains, and health risk index.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>The mean values of the various parameters of the PM samples were as follows: electrical conductivity 4.81 dS m⁻¹, pH 5.74, cation exchange capacity 66 meq 100 g⁻¹, nitrogen 1.53%, phosphorus 1.26%, potassium 0.72%, organic carbon 36.04%, lead (Pb) 1.32 mg kg⁻¹, cadmium (Cd) 8 µg kg⁻¹, surface area 7.925 m² g⁻¹, total pore volume 0.0219 cm³ g⁻¹ and pore diameter 27.33 nm. FTIR revealed the presence of various functional groups that might play a role in metal adsorption within the soil. Results from the pot experiment showed that PM increased the grain yield by 131% compared to control; however, it was at par with the SSP treatment. The increase in grain yield in PM amended soil was linked to improved nutrient acquisition and decreased metal accumulation. PM -amended soil had higher concentration of nitrogen, phosphorus, and potassium compared to unamended soil, resulting in 2.96-, 1.85- and 2.42-fold higher grain contents, respectively. Moreover, PM decreased the accumulation of Cd and Pb in grains by 48% and 56%, respectively, compared to control, whereas the effect of SSP was nonsignificant. Health risk indices for consuming Cd- and Pb-contaminated grains were 1.18 and 6.48, respectively; however, the addition of PM decreased these values to 0.53 and 3.48.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusions</h3>\u0000 \u0000 <p>PM improves wheat productivity and reduces health risks for humans associated with the consumption of wheat grains grown on the metal-contaminated soil.</p>\u0000 </section>\u0000 </div>","PeriodicalId":16802,"journal":{"name":"Journal of Plant Nutrition and Soil Science","volume":"188 2","pages":"324-333"},"PeriodicalIF":2.6,"publicationDate":"2025-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143793562","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Carbon Flux of Biological Soil Crusts Associated With Xeric Shrublands During Drying and Wetting Cycles","authors":"Dulce Flores-Rentería,&nbsp;Gabriela Guillen-Cruz,&nbsp;Fernando Ayala-Niño,&nbsp;Emmanuel F. Campuzano","doi":"10.1002/jpln.202400082","DOIUrl":"https://doi.org/10.1002/jpln.202400082","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Background</h3>\u0000 \u0000 <p>Biological soil crusts (BSCs) play a pivotal role in arid ecosystems, influencing carbon (C) dynamics in response to changing conditions, especially water availability. Understanding their adaptability is crucial for ecosystem management.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Aims</h3>\u0000 \u0000 <p>This study aims to elucidate the C dynamics of BSCs in regulated drying-wetting cycles, exploring immediate responses across different temporal scales (hourly and daily) and their relationship with environmental factors (air temperature, relative humidity, and radiation).</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>BSCs were collected at nine sites in the Chihuahuan Desert with preserved xeric shrublands. Samples were subjected to controlled drying-wetting cycles, and C fluxes were measured at different daily and hourly periods. Environmental conditions (air temperature, relative humidity, and photosynthetically active radiation) were also monitored.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Following wetting, significant BSC respiration was observed, with a quick decrease throughout the day, related to air temperature. In contrast, C uptake was less affected by wetting and showed a delayed response. C uptake was more sensitive to relative humidity.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusions</h3>\u0000 \u0000 <p>We identified the potential role of BSCs in C dynamics (respiration and uptake) in xeric shrublands and the main controls. Our study reveals BSC adaptability to drying-wetting cycles, emphasizing significant respiration and different metabolic activation.</p>\u0000 </section>\u0000 </div>","PeriodicalId":16802,"journal":{"name":"Journal of Plant Nutrition and Soil Science","volume":"188 2","pages":"289-298"},"PeriodicalIF":2.6,"publicationDate":"2025-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143793559","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Metabolites Released by Poaceae Roots Under Iron-Deficient Conditions","authors":"Teresa Saavedra,&nbsp;Maribela Pestana,&nbsp;José Paulo Da Silva,&nbsp;Pedro José Correia","doi":"10.1002/jpln.202400307","DOIUrl":"https://doi.org/10.1002/jpln.202400307","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Background</h3>\u0000 \u0000 <p>Strategy-II, as a response mechanism, is limited to grasses under Fe deficiency and is based on the secretion of phytosiderophores (PS) into the rhizosphere, in conjunction with the induction of a high-affinity system for Fe(III)-PS uptake. This strategy has a significant ecological impact and is essential for sustainable agriculture.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Aims</h3>\u0000 \u0000 <p>In this work, we studied the physiological and metabolic responses of <i>Poa pratensis</i> L., <i>Lolium perenne</i> L., and <i>Festuca rubra</i> L. when grown in nutrient solution under Fe deficiency.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>After chlorosis appeared, we analyzed leaf pigment concentrations, biomass, and ferric chelate reductase (FCR) activity of root tips. We also screened the metabolites released by root exudates using liquid chromatography coupled to high-resolution mass spectrometry (LC–HRMS).</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Plants grown with low or no Fe availability had significantly lower fresh weight (FW) and leaf chlorophyll (Chl) but higher FCR activity as compared to control plants. The root exudates contain carboxylic acids, phenolic acids, polyphenols, and peptides, among others. An increase in carboxylic acid content was correlated with Fe chlorosis in all species studied. However, the specific compounds that were upregulated varied depending on the species. Root exudates contained several upregulated metabolites that were identified as small peptides and/or peptide derivates based on their spectral data and formulas that are compatible with small peptides and/or peptide derivatives.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusions</h3>\u0000 \u0000 <p>These results, together with the metal binding/chelation properties of many peptides, highlight the release of these compounds and/or their derivatives as a response of grasses to increase the Fe bioavailability.</p>\u0000 </section>\u0000 </div>","PeriodicalId":16802,"journal":{"name":"Journal of Plant Nutrition and Soil Science","volume":"188 2","pages":"312-323"},"PeriodicalIF":2.6,"publicationDate":"2025-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143793561","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}