Abstract
Different maize varieties respond differentially to cadmium (Cd) stress. As the first organ in contact with the soil, the response of the root is particularly important. However, the physiological mechanisms that determine the response are not well defined. Here, we compared the differences in Cd-induced related gene expression, ionic homeostasis, and ultrastructural changes in roots of Cd-tolerant maize variety (XR57) and Cd-sensitive maize variety (LY296), and assessed their effects on Cd uptake and accumulation. Our findings indicate that XR57 absorbed a significantly lower Cd than LY296 did, and that the expression levels of genes related to Cd uptake (ZmNRAMP5 and ZmZIP4) and efflux (ZmABCG4) in the root were consistent with the Cd absorption at the physiological levels. Compared with LY296, the lower Cd concentration in the roots of XR57 caused less interference with the ion balance. Transmission electron microscope images revealed that the roots from XR57 exposed to Cd had developed thicker cell walls than LY296. In addition, the large increase ZmABCC1 and ZmABCC2 expression levels in XR57 mediated the appearance of numerous electron-dense granules in the vacuoles present in the roots. As a result, the high Cd tolerance of XR57 is the result of a multi-level response that involves increased resistance to Cd uptake, a stronger capacity for vacuolar regionalization, and the formation of thicker cell walls. These findings may provide a theoretical basis for maize cultivation in Cd-contaminated areas.
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Data availability
The datasets used and/or analyzed during the current study are available from the corresponding author on reasonable request.
References
Andosch A, Affenzeller MJ, Lütz C, Lütz-Meindl U (2012) A freshwater green alga under cadmium stress: ameliorating calcium effects on ultrastructure and photosynthesis in the unicellular model Micrasterias. J Plant Physiol 169:1489–1500
Chen XH, Ouyang Y, Fan YC, Qiu BY, Zhang GP, Zeng FR (2018) The pathway of transmembrane cadmium influx via calcium-permeable channels and its spatial characteristics along rice root. J Exp Bot 69:5279–5291
Cui JH, Liu TX, Li YD, Li FB (2018) Selenium reduces cadmium uptake into rice suspension cells by regulating the expression of lignin synthesis and cadmium-related genes. Sci Total Environ 644:602–610
Daud MK, Sun YQ, Dawood M, Hayat Y, Variath MT, Wu YX, Raziuddin MU, Salahuddin NU, Zhu SJ (2009) Cadmium-induced functional and ultrastructural alterations in roots of two transgenic cotton cultivars. J Hazard Mater 161:463–473
Fioroto AM, Albuquerque LGR, Carvalho AAC, Oliveira AP, Rodrigues F, Oliveira PV (2020) Hydroponic growth test of maize sprouts to evaluate As, Cd, Cr and Pb translocation from mineral fertilizer and As and Cr speciation. Environ Pollut 262:114216–114225
Ge W, Jiao YQ, Sun BL, Qin R, Jiang WS, Liu DH (2012) Cadmium-mediated oxidative stress and ultrastructural changes in root cells of poplar cultivars. S Afr J Bot 83:98–108
Gupta P, Seth CS (2022) 24-Epibrassinolide regulates functional components of nitric oxide signalling and antioxidant defense pathways to alleviate salinity stress in Brassica juncea L. cv. Varuna. J Plant Growth Regul. https://doi.org/10.1007/s00344-022-10884-
Han MX, Ullah H, Yang H, Yu G, You SH, Liu J, Chen BL, Shahab A, Antoniadis V, Shaheen SM, Rinklebe J (2023) Cadmium uptake and membrane transport in roots of hyperaccumulator Amaranthus hypochondriacus L. Environ Pollut 331:121846–121853
Huang HL, Li M, Rizwan M, Dai ZH, Yuan Y, Hossain MM, Cao MH, **ong SL, Tu SX (2021a) Synergistic effect of silicon and selenium on the alleviation of cadmium toxicity in rice plants. J Hazard Mater 401:123393–123403
Huang YF, Chen JH, Zhang DR, Fang B, Yang JT, Zou JW, Chen YH, Su NN, Cui J (2021b) Enhanced vacuole compartmentalization of cadmium in root cells contributes to glutathione-induced reduction of cadmium translocation from roots to shoots in pakchoi (Brassica chinensis L.). Ecotox Environ Safe 208:111616–111625
Ishikawa S, Ishimaru Y, Igura M, Kuramata M, Abe T, Senoura T, Hase Y, Arao T, Nishizawa NK, Nakanishi H (2012) Ion-beam irradiation, gene identification, and marker-assisted breeding in the development of low-cadmium rice. Proc Nati Acad Sci USA 109:19166–19171
Ishimaru Y, Takahashi R, Bashir K, Shimo H, Senoura T, Sugimoto K, Ono K, Yano M, Ishikawa S, Arao T, Nakanishi H, Nishizawa NK (2012) Characterizing the role of rice NRAMP5 in manganese, iron and cadmium transport. Sci Rep 2:286–293
Ismael MA, Elyamine AM, Moussa MG, Cai M, Zhao X, Hu C (2019) Cadmium in plants: uptake, toxicity, and its interactions with selenium fertilizers. Metallomics 11:255–277
Javed MT, Akram MS, Tanwir K, Chaudhary HJ, Qasim A, Stoltz E, Lindberg S (2017) Cadmium spiked soil modulates root organic acids exudation and ionic contents of two differentially Cd tolerant maize (Zea mays L.) cultivars. Ecotox Environ Safe 141:216–225
Khan MD, Mei L, Ali B, Chen Y, Cheng X, Zhu SJ (2013) Cadmium-induced upregulation of lipid peroxidation and reactive oxygen species caused physiological, biochemical, and ultrastructural changes in upland cotton seedlings. BioMed Res Int 2013:374063–374072
Khan ZS, Rizwan M, Hafeez M, Ali S, Javed MR, Adrees M (2019) The accumulation of cadmium in wheat (Triticum aestivum) as influenced by zinc oxide nanoparticles and soil moisture conditions. Environ Sci Pollut Res 26:19859–19870
Kim DY, Bovet L, Masayoshi M, Enrico M, Lee Y (2007) The ABC transporter AtPDR8 is a cadmium extrusion pump conferring heavy metal resistance. Plant J 50:207–218
Kollárováa K, Kamenickáb V, Vatehováa Z, Lišková D (2018) Impact of galactoglucomannan oligosaccharides and Cd stress on maize root growth parameters, morphology, and structure. J Plant Physiol 222:59–66
Kumar D, Dhankher OP, Tripathi RD, Seth CS (2023) Titanium dioxide nanoparticles potentially regulate the mechanism(s) for photosynthetic attributes, genotoxicity, antioxidants defense machinery, and phytochelatins synthesis in relation to hexavalent chromium toxicity in Helianthus annuus L. J Hazard Mater 454:131418–131430
Lavres J, Rabêlo FHS, Capaldi FR, Reis AR, Rosssi ML, Franco MR, Azevedo RA, Abreu-Junior CH, Nogueir NL (2019) Investigation into the relationship among Cd bioaccumulation, nutrient composition, ultrastructural changes and antioxidative metabolism in lettuce genotypes under Cd stress. Ecotox Environ Safe 170:578–589
Li C, Liu Y, Tian J, Tian J, Zhu YS, Fan JJ (2020) Changes in sucrose metabolism in maize varieties with different cadmium sensitivities under cadmium stress. PLoS 15:1–16
Liu HY, Liao BH, Lu SQ (2004) Toxicity of surfactant, acid rain and Cd2+ combined pollution to the nucleus of Vicia faba root tip cells. Chinese J Applied Environm Biol 15:493–496
Liu JJ, Wei Z, Li JH (2014) Effects of copper on leaf membrane structure and root activity of maize seedling. Bot Stud 55:47–52
Lux A, Martinka M, Vaculí M, White PJ (2011) Root responses to cadmium in the rhizosphere: a review. J Exp Bot 62:21–37
Ma JF, Shen RF, Shao JF (2021) Transport of cadmium from soil to grain in cereal crops: a review. Pedosphere 31:3–10
Mclaughlin MJ, Smolders E, Zhao FJ, Grant C, Montalvo D (2020) Managing cadmium in agricultural systems. Adv Agron 166:1–129
Muneer S, Jeong BR, Kim TH, Lee JH, Soundararajan P (2014) Transcriptional and physiological changes in relation to Fe uptake under conditions of Fe-deficiency and Cd-toxicity in roots of Vigna radiata L. J Plant Res 127:731–742
Ovečka M, Takáč T (2014) Managing heavy metal toxicity stress in plants: biological and biotechnological tools. Biotechnol Adv 32:73–86
Pang KY, Li YJ, Liu MH, Meng ZD, Yu YL (2013) Inventory and general analysis of the ATP-binding cassette (ABC) gene superfamily in maize (Zea mays L.). Gene 526:411–428
Park JY, Song WY, Ko D, Eom YJ, Hansen TH, Schiller M, Lee TG, Martinoia E, Lee YS (2012) The phytochelatin transporters AtABCC1 and AtABCC2 mediate tolerance to cadmium and mercury. Plant J 69:278–288
Qi WZ, Liu HH, Liu P, Dong ST, Zhao BQ, So HB, Li G, Liu HD, Zhang JW, Zhao B (2012) Morphological and physiological characteristics of corn (Zea mays L.) roots from cultivars with different yield potentials. Eur J Agron 38:54–63
Qin SY, Xu YF, Nie ZJ, Liu HE, Gao W, Li C, Wang L, Zhao P (2022) Effect of boron on cadmium uptake and expression of Cd transport genes at different growth stages of wheat (Triticum aestivum L.). Ecotox Environ Safe 241:113834–113842
Qin XM, Nie ZJ, Liu HE, Zhao P, Qin SY, Shi ZW (2018) Influence of selenium on root morphology and photosynthetic characteristics of winter wheat under cadmium stress. Environ Exp Bot 150:232–239
Ramos I, Esteban E, Lucena JJ, Garate A (2002) Cadmium uptake and subcellular distribution in plants of Lactuca sp. Cd-Mn interaction. Plant Sci 162:761–767
Riaz M, Kamran M, Fang YZ, Yang GL, Rizwan M, Ali S, Zhou YY, Wang QQ, Deng LL, Wang YJ, Wang XR (2021) Boron supply alleviates cadmium toxicity in rice (Oryza sativa L.) by enhancing cadmium adsorption on cell wall and triggering antioxidant defense system in roots. Chemosphere 266:128938–128950
Rizvi A, Khan MS (2018) Heavy metal induced oxidative damage and root morphology alterations of maize (Zea mays L.) plants and stress mitigation by metal tolerant nitrogen fixing azotobacter chroococcum. Ecotoxicol Environ Safe 157:9–20
Rodda MS, Li G, Rj R (2011) The timing of grain Cd accumulation in rice plants: the relative importance of remobilisation within the plant and root Cd uptake post-flowering. Plant Soil 347:105–114
Romè C, Huang XY, Danku J, Salt DE, Sebastiani L (2016) Expression of specific genes involved in Cd uptake, translocation, vacuolar compartmentalisation and recycling in Populus alba Villafranca clone. J Plant Physiol 202:83–91
Sasaki A, Yamaji N, Yokosho K, Ma JF (2012) Nramp5 is a major transporter responsible for manganese and cadmium uptake in rice. Plant Cell 24:2155–2167
Sun GY, Meng Y, Wang Y, Zhao M, Wei S, Gu WR (2021) Exogenous hemin optimized maize leaf photosynthesis, root development, grain filling, and resource utilization on alleviating cadmium stress under field condition. J Soil Sci Plant Nut 22:631–646
Tang RJ, Luan S (2017) Regulation of calcium and magnesium homeostasis in plants: from transporters to signaling network. Curr Opin Plant Biol 39:97–105
Tao Q, Liu YK, Li M, Li JX, Luo JP, Lux A, Yuan S, Li B, Li QQ, Li HX, Li TQ (2020) Cd-induced difference in root characteristics along root apex contributes to variation in Cd uptake and accumulation between two contrasting ecotypes of Sedum alfredii. Chemosphere 243:1–11
Ueno D, Milner MJ, Yamaji N, Yokosho K, Koyama E, Clemencia Zambrano M, Kaskie M, Ebbs S, Kochian LV, Ma JF (2011) Elevated expression of TcHMA3 plays a key role in the extreme Cd tolerance in a Cd-hyperaccumulating ecotype of Thlaspi caerulescens. Plant J 66:852–862
Wang HQ, Xuan W, Huang XY, Mao CZ, Zhao FJ (2021) Cadmium inhibits lateral root emergence in rice by disrupting OsPIN-mediated auxin distribution and the protective effect of OsHMA3. Plant Cell Physiol 62:166–177
Wang L, Zou R, Cai JH, Liu GH, Jiang Y, Chai GQ, Qin S, Fan CW (2023) Effect of Cd toxicity on root morphology, ultrastructure, Cd uptake and accumulation of wheat under intercrop** with Solanum nigrum L. Heliyon 9:16270–16278
Wang YT, Björn LO (2014) Heavy metal pollution in Guangdong Province, China, and the strategies to manage the situation. Front Environ Sci 2:1–12
Wei W, Peng H, **e YH, Wang X, Huang R, Chen HY, Ji XH (2021) The role of silicon in cadmium alleviation by rice root cell wall retention and vacuole compartmentalization under different durations of Cd exposure. Ecotox Environ Safe 226:112810–112819
Wu XW, Tian H, Li L, Wang XQ (2021) Polyaspartic acid alleviates cadmium toxicity in rapeseed leaves by affecting cadmium translocation and cell wall fixation of cadmium. Ecotox Environ Safe 224:112685–112692
Wu ZC, Zhao XH, Sun XC, Tan QL, Tang YF, Nie ZJ, Hu CX (2015) Xylem transport and gene expression play decisive roles in cadmium accumulation in shoots of two oilseed rape cultivars (Brassica napus). Chemosphere 119:1217–1223
**ao AW, Chen DT, Li WC, Ye ZH (2021) Root morphology and anatomy affect cadmium translocation and accumulation in rice. Rice Sci 28:594–604
Xu XH, Liu CY, Zhao XY, Li RY, Deng WJ (2014) Involvement of an antioxidant defense system in the adaptive response to cadmium in maize seedlings (Zea mays L.). B Environ Contam Tox 93:618–624
Yang JL, Li K, Zheng W, Zhang HZ, Cao XD, Lan YX, Yang CP, Li CH (2015) Characterization of early transcriptional responses to cadmium in the root and leaf of Cd-resistant Salix matsudana Koidz. BMC Genom 16:705–720
Yue RQ, Lu CX, Qi JS, Han XH, Yan SF, Guo SL, Liu L, Fu XL, Chen NN, Yin HY, Chi HF, Tie SG (2016) Transcriptome analysis of cadmium-treated roots in Maize (Zea mays L.). Front in Plant Sci 7:1298–1308
Zeng LH, Zhu T, Gao Y, Wang YT, Ning CJ, Björn LO, Chen D, Li SS (2017) Effects of Ca addition on the uptake, translocation, and distribution of Cd in Arabidopsis thaliana. Ecotox Environ Safe 139:228–237
Zhang LG, Zhang C, Du BY, Lu BX, Zhou DM, Zhou J, Zhou J (2020) Effects of node restriction on cadmium accumulation in eight Chinese wheat (Triticum turgidum) cultivars. Sci Total Environ 725:138358–138365
Zhao YN, Luo LL, Xu JS, **n PY, Guo HY, Wu J, Bai L, Wang GD, Chu JF, Zuo JR, Yu H, Huang X, Li JY (2018) Malate transported from chloroplast to mitochondrion triggers production of ROS and PCD in Arabidopsis thaliana. Cell Res 28:448–461
Zhou J, Du BY, Wang ZW, Zhang WT, Xu L, Fan XJ, Liu XL, Zhou J (2019) Distributions and pools of lead (Pb) in a terrestrial forest ecosystem with highly elevated atmospheric Pb deposition and ecological risks to insects. Sci Total Environ 647:932–941
Zhou J, Zhang C, Du BY, Cui HB, Fan XJ, Zhou DM, Zhou J (2020) Effects of zinc application on cadmium (Cd) accumulation and plant growth through modulation of the antioxidant system and translocation of Cd in low- and high-Cd wheat cultivars. Environ Pollut 265:115045–115054
Zuzana V, Karin K, Anna M, Desana L (2018) Maize shoot cell walls under cadmium stress. Environ Sci Pollut Res 25:22318–22322
Funding
This work was financially supported by National Natural Science Foundation of China (31771713, 31371576) and Shandong Province Key Agricultural Project for Application Technology Innovation (SDAIT02-08).
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Peng Liu: conceptualization, methodology, and resources. Mengxue Qu: investigation, data curation, and writing — original draft. Jie Song: investigation. Jiwang Zhang: supervision. Bin Zhao: supervision. Baizhao Ren: supervision. Hao Ren: supervision and project administration.
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Highlights
1. Roots of Cd-sensitive maize varieties accumulate more Cd than those of Cd-tolerant varieties.
2. Cd tolerance is associated with ZmNRAMP5 and ZmZIP4 suppression, as well as ZmABCG4 elevation.
3. Cd-stress-induced upregulation of ZmABCC1 and ZmABCC2 expression boosts vacuolar regionalization.
4. Roots of Cd-tolerant maize varieties respond to Cd stress by develo** thicker cell walls and larger vacuoles.
Novelty statement
We investigated the difference in performance of two maize varieties subjected to Cd stress by combining measurements of the expression levels of genes associated with Cd tolerance with observations of changes in the root ultrastructure. Our study provided us with an in-depth understanding of the mechanisms governing Cd tolerance in Cd-tolerant maize varieties.
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Qu, M., Song, J., Ren, H. et al. Differences of cadmium uptake and accumulation in roots of two maize varieties (Zea mays L.). Environ Sci Pollut Res 30, 96993–97004 (2023). https://doi.org/10.1007/s11356-023-29340-9
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DOI: https://doi.org/10.1007/s11356-023-29340-9