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Kabir AH, Ela EJ, Bagchi R, Rahman MA, Peiter E, Lee KW. Nitric oxide acts as an inducer of Strategy-I responses to increase Fe availability and mobilization in Fe-starved broccoli (Brassica oleracea var. oleracea). PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2023; 194:182-192. [PMID: 36423388 DOI: 10.1016/j.plaphy.2022.11.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2022] [Revised: 11/10/2022] [Accepted: 11/14/2022] [Indexed: 06/16/2023]
Abstract
Iron (Fe) deficiency causes reduced growth and yield in broccoli. This study elucidates how sodium nitroprusside (SNP), known as nitric oxide (NO) donor, mitigates the retardation caused by Fe deficiency in broccoli. The SNP caused substantial nitric oxide accumulation in the roots of Fe-deficient plants, which resulted in a significant improvement in chlorophyll levels, photosynthetic efficiency, and morphological growth parameters, showing that it has a favorable influence on recovering broccoli health. Ferric reductase activity and the expression of BoFRO1 (ferric chelate reductase) gene in roots were consistently increased by SNP under Fe deficiency, which likely resulted in increased Fe mobilization. Furthermore, proton (H+) extrusion and BoHA2 (H+-ATPase 2) expression were significantly increased, suggesting that they may be involved in lowering rhizospheric pH to restore Fe mobilization in roots of bicarbonate-treated broccoli plants. The levels of Fe in root and shoot tissues and the expression of BoIRT1 (Fe-regulated transporter) both increased dramatically after SNP supplementation under Fe deprivation. Furthermore, SNP-induced increase in citrate and malate concentrations suggested a role of NO in improved Fe chelation in Fe-deficient broccoli. A NO scavenger (cPTIO) ceased the elevated FCR activity and IAA (indole-3-acetic acid) concentration in Fe-starved plants treated with SNP. These findings suggest that SNP may play a role in initiating Fe availability by elevated IAA concentration and BoEIR1 (auxin efflux carrier) expression in the roots of broccoli during Fe shortage. Therefore, SNP may improve Fe availability and mobilization by increasing Strategy-I Fe uptake pathways, which may help broccoli tolerate Fe deficiency.
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Affiliation(s)
- Ahmad Humayan Kabir
- Department of Genetics, University of Georgia, GA 30602, USA; Molecular Plant Physiology Laboratory, University of Rajshahi, Rajshahi, 6205, Bangladesh.
| | - Esrat Jahan Ela
- Molecular Plant Physiology Laboratory, University of Rajshahi, Rajshahi, 6205, Bangladesh
| | - Ruby Bagchi
- Molecular Plant Physiology Laboratory, University of Rajshahi, Rajshahi, 6205, Bangladesh
| | - Md Atikur Rahman
- Grassland and Forage Division, National Institute of Animal Science, Rural Development Administration, Cheonan, 31000, Republic of Korea
| | - Edgar Peiter
- Plant Nutrition Laboratory, Institute of Agricultural and Nutritional Sciences, Martin Luther University Halle-Wittenberg, Halle (Saale), Germany
| | - Ki-Won Lee
- Grassland and Forage Division, National Institute of Animal Science, Rural Development Administration, Cheonan, 31000, Republic of Korea
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Jiang C, Yang Y, Zhang L, Lu D, Lu L, Yang X, Cai T. Degradation of Atrazine, Simazine and Ametryn in an arable soil using thermal-activated persulfate oxidation process: Optimization, kinetics, and degradation pathway. JOURNAL OF HAZARDOUS MATERIALS 2020; 400:123201. [PMID: 32947740 DOI: 10.1016/j.jhazmat.2020.123201] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/29/2020] [Revised: 05/27/2020] [Accepted: 06/09/2020] [Indexed: 06/11/2023]
Abstract
This study examined the feasibility of applying thermal-activated persulfate (PS) oxidation for remediation of soil co-contaminated with s-triazine herbicides including Atrazine (ATZ), Simazine (SIM) and Ametryn (AME). Homogeneous activation using heating method (50 °C) was selected. Results showed that thermal-activated PS oxidation process may successfully degrade ATZ in soil and degradation efficiency was increased along the arising activation temperature. Higher PS dosages and depressed initial pH were beneficial for degradation while increasing initial ATZ concentration may hamper the degradation. The oxidation process may lead to changes of surface functional groups on soil. The presence of Cl-, HCO3- and H2PO4- at both of low and high concentrations may inhibit the degradation of ATZ. Soil depths may apparently influence the ATZ degradation which followed 0-10 < 10-30 < 30-60 cm mainly depending on the soil organic matter (SOM) contents. Thermal-activated PS may effectively degrade ATZ, SIM and AME under co-contaminated condition and the more favorable of ethyl group towards SO4- than isopropyl and methylation groups was detected. Both of SO4- and HO were identified to be responsible for degradation. Finally, degradation intermediates of ATZ, SIM and AME were identified by LC-Q-TOF-MS and detailed transformation pathways for three pesticides were proposed, respectively.
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Affiliation(s)
- Canlan Jiang
- College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Ying Yang
- College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Lei Zhang
- College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Dan Lu
- College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Lingli Lu
- College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Xiaoxue Yang
- College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Tianming Cai
- College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, China.
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Spatial Distribution Characteristics and Pollution Evaluation of Soil Iron in the Middle Hanjiang River. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2019; 16:ijerph16214075. [PMID: 31652749 PMCID: PMC6862237 DOI: 10.3390/ijerph16214075] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Revised: 10/16/2019] [Accepted: 10/16/2019] [Indexed: 11/18/2022]
Abstract
Soil iron has an important impact on the ecological environment and on crop growth. This study selected a typical small watershed basin in the middle reaches of the Han River (Yujiehe) at Ankang City and used geostatistical methods and kriging interpolation to analyze the spatial distribution and structure of soil iron content for different land uses and at different depths, using the single-factor pollution evaluation to evaluate the pollution degree of soil iron. The results showed that soil iron in the Yujie River basin decreased with increasing soil depth, with contents of 8.80 mg/kg, 5.52 mg/kg, and 4.92 mg/kg at depths A1 (0–20 cm), A2 (20–40 cm), and A3 (40–60 cm). According to the classification index of effective trace elements in soil, the average contents of soil iron at these three depths were between 4.5 and 10 mg/kg, which are all considered moderate values. The coefficients of variation of soil iron at the three soil depths were 59%, 75%, and 83%, all of which showed moderate spatial variability, and the coefficient of variation increased gradually with soil depth. With semi-variance calculated at the three soil depths, soil iron optimal theoretical models were all exponential models with nugget coefficients of 9.52%, 47.76%, and 33.93%, indicating that spatial correlation was very strong in the A1 layer and moderate in the A2 and A3 layers. The spatial distribution of soil iron showed some variation in the study area, and the soil content was higher in the midwestern part in the A1 and A2 layers; however, in the A3 layer, the higher content was in the center and lower content was in the southern region. Correlations were significant between soil iron content on the one hand and land-use type and topographic factors on the other. The pollution indices of soil iron at the three soil depths under different land uses were all greater than 1.0, with the A1 layer in farmland being the worst, at 3.34. In the study area, using the background value of soil iron as an evaluation standard, the soil iron content of more than 65% of the Yujiehe region exceeded this standard.
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Akram NA, Shafiq F, Ashraf M. Peanut (Arachis hypogaea L.): A Prospective Legume Crop to Offer Multiple Health Benefits Under Changing Climate. Compr Rev Food Sci Food Saf 2018; 17:1325-1338. [PMID: 33350163 DOI: 10.1111/1541-4337.12383] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2018] [Revised: 06/21/2018] [Accepted: 06/22/2018] [Indexed: 12/19/2022]
Abstract
Peanut is a multipurpose oil-seed legume, which offer benefits in many ways. Apart from the peanut plant's beneficial effects on soil quality, peanut seeds are nutritious and medicinally and economically important. In this review, insights into peanut origin and its domestication are provided. Peanut is rich in bioactive components, including phenolics, flavonoids, polyphenols, and resveratrol. In addition, the involvement of peanut in biological nitrogen fixation is highly significant. Recent reports regarding peanut responses and N2 fixation ability in response to abiotic stresses, including drought, salinity, heat stress, and iron deficiency on calcareous soils, have been incorporated. As a biotechnological note, recent advances in the development of transgenic peanut plants are also highlighted. In this context, regulation of transcriptional factors and gene transfer for the development of stress-tolerant peanut genotypes are of prime importance. Above all, this review signifies the importance of peanut cultivation and human consumption in view of the scenario of changing world climate in order to maintain food security.
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Affiliation(s)
| | - Fahad Shafiq
- Dept. of Botany, Government College Univ. Faisalabad, Pakistan
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Biomass Production of Three Biofuel Energy Plants’ Use of a New Carbon Resource by Carbonic Anhydrase in Simulated Karst Soils: Mechanism and Capacity. ENERGIES 2017. [DOI: 10.3390/en10091370] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Sebastian A, Nangia A, Prasad MNV. Carbon-Bound Iron Oxide Nanoparticles Prevent Calcium-Induced Iron Deficiency in Oryza sativa L. . JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2017; 65:557-564. [PMID: 28048936 DOI: 10.1021/acs.jafc.6b04634] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Iron-based nanocomposites can be a practical solution to combat iron deficiency in calcareous agricultural soil. In the present study, a carbon-bound iron oxide nanoparticle is synthesized by mixing ferric chloride and caffeic acid and tested to correct Ca-inducible Fe deficiency in rice. Physicochemical characterization points that the nanoparticle is carbon-coated semi-crystalline Fe3O4. It is found that nanoparticle amendment enhances bioproductivity, photosynthetic electron transport, antioxidant enzyme activity, and Fe accumulation under Ca stress. Reduction in Ca accumulation via physical adsorption, Fe release from the particles, and maintenance of molecular responses related to Fe acquisition were the reasons for the above progressive growth effects. Thus, it is concluded that nanoparticles synthesized in the study act as a potential ameliorant to correct Ca-induced Fe deficiency in rice plants.
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Affiliation(s)
- Abin Sebastian
- School of Chemistry and ‡Department of Plant Sciences, University of Hyderabad , Prof. C. R. Rao Road, Central University Post Office, Hyderabad, Telangana 500 046, India
| | - Ashwini Nangia
- School of Chemistry and ‡Department of Plant Sciences, University of Hyderabad , Prof. C. R. Rao Road, Central University Post Office, Hyderabad, Telangana 500 046, India
| | - M N V Prasad
- School of Chemistry and ‡Department of Plant Sciences, University of Hyderabad , Prof. C. R. Rao Road, Central University Post Office, Hyderabad, Telangana 500 046, India
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Momtaz Gad M, Ahmed Zagz O, Hafez NK. Effect of Nano-chitosan on Vegetative Growth, Fruiting and Resistance of Malformation of Mango. ACTA ACUST UNITED AC 2017. [DOI: 10.3923/thr.2017.11.18] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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8
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Rodríguez-Celma J, Lattanzio G, Villarroya D, Gutierrez-Carbonell E, Ceballos-Laita L, Rencoret J, Gutiérrez A, Del Río JC, Grusak MA, Abadía A, Abadía J, López-Millán AF. Effects of Fe deficiency on the protein profiles and lignin composition of stem tissues from Medicago truncatula in absence or presence of calcium carbonate. J Proteomics 2016; 140:1-12. [PMID: 27045941 DOI: 10.1016/j.jprot.2016.03.017] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2015] [Revised: 03/07/2016] [Accepted: 03/10/2016] [Indexed: 12/26/2022]
Abstract
UNLABELLED Iron deficiency is a yield-limiting factor with major implications for crop production, especially in soils with high CaCO3. Because stems are essential for the delivery of nutrients to the shoots, the aim of this work was to study the effects of Fe deficiency on the stem proteome of Medicago truncatula. Two-dimensional electrophoresis separation of stem protein extracts resolved 276 consistent spots in the whole experiment. Iron deficiency in absence or presence of CaCO3 caused significant changes in relative abundance in 10 and 31 spots, respectively, and 80% of them were identified by mass spectrometry. Overall results indicate that Fe deficiency by itself has a mild effect on the stem proteome, whereas Fe deficiency in the presence of CaCO3 has a stronger impact and causes changes in a larger number of proteins, including increases in stress and protein metabolism related proteins not observed in the absence of CaCO3. Both treatments resulted in increases in cell wall related proteins, which were more intense in the presence of CaCO3. The increases induced by Fe-deficiency in the lignin per protein ratio and changes in the lignin monomer composition, assessed by pyrolysis-gas chromatography-mass spectrometry and microscopy, respectively, further support the existence of cell wall alterations. BIOLOGICAL SIGNIFICANCE In spite of being essential for the delivery of nutrients to the shoots, our knowledge of stem responses to nutrient deficiencies is very limited. The present work applies 2-DE techniques to unravel the response of this understudied tissue to Fe deficiency. Proteomics data, complemented with mineral, lignin and microscopy analyses, indicate that stems respond to Fe deficiency by increasing stress and defense related proteins, probably in response of mineral and osmotic unbalances, and eliciting significant changes in cell wall composition. The changes observed are likely to ultimately affect solute transport and distribution to the leaves.
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Affiliation(s)
- Jorge Rodríguez-Celma
- Plant Nutrition Department, Aula Dei Experimental Station (CSIC), P.O. Box 13034, E-50080, Zaragoza, Spain
| | - Giuseppe Lattanzio
- Plant Nutrition Department, Aula Dei Experimental Station (CSIC), P.O. Box 13034, E-50080, Zaragoza, Spain
| | - Dido Villarroya
- Plant Nutrition Department, Aula Dei Experimental Station (CSIC), P.O. Box 13034, E-50080, Zaragoza, Spain
| | - Elain Gutierrez-Carbonell
- Plant Nutrition Department, Aula Dei Experimental Station (CSIC), P.O. Box 13034, E-50080, Zaragoza, Spain
| | - Laura Ceballos-Laita
- Plant Nutrition Department, Aula Dei Experimental Station (CSIC), P.O. Box 13034, E-50080, Zaragoza, Spain
| | - Jorge Rencoret
- Instituto de Recursos Naturales y Agrobiología de Sevilla (CSIC), Reina Mercedes 10, E-41012 Sevilla, Spain
| | - Ana Gutiérrez
- Instituto de Recursos Naturales y Agrobiología de Sevilla (CSIC), Reina Mercedes 10, E-41012 Sevilla, Spain
| | - José C Del Río
- Instituto de Recursos Naturales y Agrobiología de Sevilla (CSIC), Reina Mercedes 10, E-41012 Sevilla, Spain
| | - Michael A Grusak
- USDA-ARS Children's Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine, 1100 Bates Street, Houston, TX 77030, USA
| | - Anunciación Abadía
- Plant Nutrition Department, Aula Dei Experimental Station (CSIC), P.O. Box 13034, E-50080, Zaragoza, Spain
| | - Javier Abadía
- Plant Nutrition Department, Aula Dei Experimental Station (CSIC), P.O. Box 13034, E-50080, Zaragoza, Spain
| | - Ana-Flor López-Millán
- USDA-ARS Children's Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine, 1100 Bates Street, Houston, TX 77030, USA.
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Xia S, Wang X, Su G, Shi G. Effects of drought on cadmium accumulation in peanuts grown in a contaminated calcareous soil. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2015; 22:18707-18717. [PMID: 26194243 DOI: 10.1007/s11356-015-5063-9] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2015] [Accepted: 07/09/2015] [Indexed: 06/04/2023]
Abstract
This study aimed to investigate the effects of drought stress on cadmium (Cd) accumulation in peanut (Arachis hypogaea L.) grown in contaminated calcareous soils. Five peanut cultivars were grown in a calcareous soil spiked with 4 mg Cd kg(-1) soil (dry weight) under well-watered, mild drought, and severe drought conditions. The biomass production, gas exchange, spectral reflectance, and Cd accumulation in plant tissues were determined. The five cultivars significantly differed from each other in biomass production, gas exchange, spectral reflectance, and Cd accumulation. The effect of drought on Cd accumulation in peanuts varies with plant tissues, cultivars, and developmental stages. Drought decreased root Cd concentrations in seedlings of the two high Cd-accumulating cultivars (Haihua 1 and Zhenghong 3), which is associated with increasing leaf active Fe content. However, for the mature plants, drought stress caused an increase in Cd accumulation in roots, pod walls, and seeds depending on peanut cultivars. Negative correlations were found between seed Cd concentration and biomasses in both preflowering seedlings and mature plants. The seed Cd concentration in mature plants was also observed to be positively correlated with the shoot Cd concentration in preflowering seedlings. The increased Cd concentration in seeds of drought-stressed peanut plants grown in Cd-contaminated calcareous soils might be attributed to the drought-induced decrease of biomass production.
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Affiliation(s)
- Shenglan Xia
- College of Life Sciences, Huaibei Normal University, Huaibei, 235000, People's Republic of China
| | - Xvming Wang
- College of Life Sciences, Huaibei Normal University, Huaibei, 235000, People's Republic of China
| | - Genqiang Su
- College of Life Sciences, Huaibei Normal University, Huaibei, 235000, People's Republic of China
| | - Gangrong Shi
- College of Life Sciences, Huaibei Normal University, Huaibei, 235000, People's Republic of China.
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García MJ, García-Mateo MJ, Lucena C, Romera FJ, Rojas CL, Alcántara E, Pérez-Vicente R. Hypoxia and bicarbonate could limit the expression of iron acquisition genes in Strategy I plants by affecting ethylene synthesis and signaling in different ways. PHYSIOLOGIA PLANTARUM 2014; 150:95-106. [PMID: 23742320 DOI: 10.1111/ppl.12076] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2013] [Accepted: 05/16/2013] [Indexed: 05/20/2023]
Abstract
In a previous work, it was shown that bicarbonate (one of the most important factors causing Fe chlorosis in Strategy I plants) can limit the expression of several genes involved in Fe acquisition. Hypoxia is considered another important factor causing Fe chlorosis, mainly on calcareous soils. However, to date it is not known whether hypoxia aggravates Fe chlorosis by affecting bicarbonate concentration or by specific negative effects on Fe acquisition. Results found in this work show that hypoxia, generated by eliminating the aeration of the nutrient solution, can limit the expression of several Fe acquisition genes in Fe-deficient Arabidopsis, cucumber and pea plants, like the genes for ferric reductases AtFRO2, PsFRO1 and CsFRO1; iron transporters AtIRT1, PsRIT1 and CsIRT1; H(+) -ATPase CsHA1; and transcription factors AtFIT, AtbHLH38, and AtbHLH39. Interestingly, the limitation of the expression of Fe-acquisition genes by hypoxia did not occur in the Arabidopsis ethylene constitutive mutant ctr1, which suggests that the negative effect of hypoxia is related to ethylene, an hormone involved in the upregulation of Fe acquisition genes. As for hypoxia, results obtained by applying bicarbonate to the nutrient solution suggests that ethylene is also involved in its negative effect, since ACC (1-aminocyclopropane-1-carboxylic acid; ethylene precursor) partially reversed the negative effect of bicarbonate on the expression of Fe acquisition genes. Taken together, the results obtained show that hypoxia and bicarbonate could induce Fe chlorosis by limiting the expression of Fe acquisition genes, probably because each factor negatively affects different steps of ethylene synthesis and/or signaling.
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Affiliation(s)
- María J García
- Department of Botany, Ecology and Plant Physiology, Edificio Celestino Mutis (C-4), Campus de Rabanales, University of Córdoba, 14071, Córdoba, Spain
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Martínez-Cuenca MR, Legaz F, Forner-Giner MÁ, Primo-Millo E, Iglesias DJ. Bicarbonate blocks iron translocation from cotyledons inducing iron stress responses in Citrus roots. JOURNAL OF PLANT PHYSIOLOGY 2013; 170:899-905. [PMID: 23465471 DOI: 10.1016/j.jplph.2013.01.012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2012] [Revised: 01/28/2013] [Accepted: 01/29/2013] [Indexed: 06/01/2023]
Abstract
The effect of bicarbonate ion (HCO3(-)) on the mobilization of iron (Fe) reserves from cotyledons to roots during early growth of citrus seedlings and its influence on the components of the iron acquisition system were studied. Monoembryonic seeds of Citrus limon (L.) were germinated "in vitro" on two iron-deprived media, supplemented or not with 10mM HCO3(-) (-Fe+Bic and -Fe, respectively). After 21d of culture, Fe concentration in seedling organs was measured, as well as gene expression and enzymatic activities. Finally, the effect of Fe resupply on the above responses was tested in the presence and absence of HCO3(-) (+Fe+Bic or +Fe, respectively). -Fe+Bic seedlings exhibited lower Fe concentration in shoots and roots than -Fe ones but higher in cotyledons, associated to a significative inhibition of NRAMP3 expression. HCO3(-) upregulated Strategy I related genes (FRO1, FRO2, HA1 and IRT1) and FC-R and H(+)-ATPase activities in roots of Fe-starved seedlings. PEPC1 expression and PEPCase activity were also increased. When -Fe+Bic pre-treated seedlings were transferred to Fe-containing media for 15d, Fe content in shoots and roots increased, although to a lower extent in the +Fe+Bic medium. Consequently, the above-described root responses became markedly repressed, however, this effect was less pronounced in +Fe+Bic seedlings. In conclusion, it appears that HCO3(-) prevents Fe translocation from cotyledons to shoot and root, therefore reducing their Fe levels. This triggers Fe-stress responses in the root, enhancing the expression of genes related with Fe uptake and the corresponding enzymatic activities.
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Affiliation(s)
- Mary-Rus Martínez-Cuenca
- Department of Citriculture and Vegetal Production, Instituto Valenciano Investigaciones Agrarias, Crta Náquera-Moncada, km 4.5, Valencia 46113, Spain
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Effects of soil stoichiometry of the CaCO3/available phosphorus ratio on plant density in Artemisia ordosica communities. CHINESE SCIENCE BULLETIN-CHINESE 2011. [DOI: 10.1007/s11434-011-4866-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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13
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Lucena C, Romera FJ, Rojas CL, García MJ, Alcántara E, Pérez-Vicente R. Bicarbonate blocks the expression of several genes involved in the physiological responses to Fe deficiency of Strategy I plants. FUNCTIONAL PLANT BIOLOGY : FPB 2007; 34:1002-1009. [PMID: 32689428 DOI: 10.1071/fp07136] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2007] [Accepted: 09/17/2007] [Indexed: 05/24/2023]
Abstract
Bicarbonate is considered one of the most important factors causing Fe chlorosis in Strategy I plants, mainly on calcareous soils. Most of its negative effects have been attributed to its capacity to buffer a high pH in soils, which can diminish both Fe solubility and root ferric reductase activity. Besides its pH-mediated effects, previous work has shown that bicarbonate can inhibit the induction of enhanced ferric reductase activity in Fe-deficient Strategy I plants. However, to date it is not known whether bicarbonate affects the upregulation of the ferric reductase gene and other genes involved in Fe acquisition. The objective of this work has been to study the effect of bicarbonate on the expression of several Fe acquisition genes in Arabidopsis (Arabidopsis thaliana L.), pea (Pisum sativum L.), tomato (Lycopersicon esculentum Mill.) and cucumber (Cucumis sativus L.) plants. Genes for ferric reductases AtFRO2, PsFRO1, LeFRO1 and CsFRO1; iron transporters AtITR1, PsRIT1, LeIRT1 and CsIRT1; H+-ATPases CsHA1 and CsHA2; and transcription factors AtFIT and LeFER have been examined. The results showed that bicarbonate could induce Fe chlorosis by inhibiting the expression of the ferric reductase, the iron transporter and the H+-ATPase genes, probably through alteration of the expression of Fe efficiency reactions (FER) (or FER-like) transcription factors.
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Affiliation(s)
- Carlos Lucena
- Department of Agronomy, Edificio Celestino Mutis (C-4), Campus de Rabanales, University of Córdoba, 14014-Córdoba, Spain
| | - Francisco J Romera
- Department of Agronomy, Edificio Celestino Mutis (C-4), Campus de Rabanales, University of Córdoba, 14014-Córdoba, Spain
| | - Carmen L Rojas
- Department of Agronomy, Edificio Celestino Mutis (C-4), Campus de Rabanales, University of Córdoba, 14014-Córdoba, Spain
| | - María J García
- Department of Botany, Ecology and Plant Physiology, Edificio Celestino Mutis (C-4), Campus de Rabanales, University of Córdoba, 14014-Córdoba, Spain
| | - Esteban Alcántara
- Department of Agronomy, Edificio Celestino Mutis (C-4), Campus de Rabanales, University of Córdoba, 14014-Córdoba, Spain
| | - Rafael Pérez-Vicente
- Department of Botany, Ecology and Plant Physiology, Edificio Celestino Mutis (C-4), Campus de Rabanales, University of Córdoba, 14014-Córdoba, Spain
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