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Chen K, Yu B, Xue W, Sun Y, Zhang C, Gao X, Zhou X, Deng Y, Yang J, Zhang B. Citric Acid Inhibits Cd Absorption and Transportation by Improving the Antagonism of Essential Elements in Rice Organs. TOXICS 2024; 12:431. [PMID: 38922111 PMCID: PMC11209394 DOI: 10.3390/toxics12060431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2024] [Revised: 06/07/2024] [Accepted: 06/11/2024] [Indexed: 06/27/2024]
Abstract
Excessive cadmium (Cd) in rice is a global environmental problem. Therefore, reducing Cd content in rice is of great significance for ensuring food security and human health. A field experiment was conducted to study the effects of foliar application of citric acid (CA) on Cd absorption and transportation in rice under high Cd-contaminated soils (2.04 mg·kg-1). This study revealed that there was a negative correlation between Cd content in vegetative organs and CA content, and that foliar spraying of CA (1 mM and 5 mM) significantly increased CA content and reduced Cd content in vegetative organs. The Cd reduction effect of 5 mM CA was better than that of 1 mM, and 5 mM CA reduced Cd content in grains and spikes by 52% and 37%, respectively. CA significantly increased Mn content in vegetative organs and increased Ca/Mn ratios in spikes, flag leaves, and roots. CA significantly reduced soluble Cd content in vegetative organs and promoted the transformation of Cd into insoluble Cd, thus inhibiting the transport of Cd from vegetative organs to grains. The foliar field application of 1 mM and 5 mM CA could inhibit Cd absorption and transportation by reducing Cd bioactivity and increasing the antagonistic of essential elements in rice vegetative organs. These results provide technical support and a theoretical basis for solving the problem of excessive Cd in rice.
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Affiliation(s)
- Kexin Chen
- Key Laboratory of Original Agro-Environmental Pollution Prevention and Control, Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China; (K.C.); (B.Y.); (Y.S.); (C.Z.); (X.G.); (X.Z.)
| | - Bozhen Yu
- Key Laboratory of Original Agro-Environmental Pollution Prevention and Control, Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China; (K.C.); (B.Y.); (Y.S.); (C.Z.); (X.G.); (X.Z.)
| | - Weijie Xue
- Key Laboratory of Original Agro-Environmental Pollution Prevention and Control, Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China; (K.C.); (B.Y.); (Y.S.); (C.Z.); (X.G.); (X.Z.)
| | - Yuebing Sun
- Key Laboratory of Original Agro-Environmental Pollution Prevention and Control, Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China; (K.C.); (B.Y.); (Y.S.); (C.Z.); (X.G.); (X.Z.)
| | - Changbo Zhang
- Key Laboratory of Original Agro-Environmental Pollution Prevention and Control, Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China; (K.C.); (B.Y.); (Y.S.); (C.Z.); (X.G.); (X.Z.)
| | - Xusheng Gao
- Key Laboratory of Original Agro-Environmental Pollution Prevention and Control, Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China; (K.C.); (B.Y.); (Y.S.); (C.Z.); (X.G.); (X.Z.)
| | - Xiaojia Zhou
- Key Laboratory of Original Agro-Environmental Pollution Prevention and Control, Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China; (K.C.); (B.Y.); (Y.S.); (C.Z.); (X.G.); (X.Z.)
| | - Yun Deng
- School of Environment and Ecology, Jiangnan University, Wuxi 214122, China;
| | - Jiarun Yang
- College of Water Conservancy Engineering, Tianjin Agricultural University, Tianjin 300392, China; (J.Y.); (B.Z.)
| | - Boqian Zhang
- College of Water Conservancy Engineering, Tianjin Agricultural University, Tianjin 300392, China; (J.Y.); (B.Z.)
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Das S, Sengupta S, Patra PK, Dey P. Limestone and yellow gypsum can reduce cadmium accumulation in groundnut (Arachis hypogaea): A study from a three-decade old landfill site. CHEMOSPHERE 2024; 353:141645. [PMID: 38452977 DOI: 10.1016/j.chemosphere.2024.141645] [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: 11/21/2023] [Revised: 02/18/2024] [Accepted: 03/02/2024] [Indexed: 03/09/2024]
Abstract
Cadmium (Cd) toxicity has cropped up as an important menace in the soil-plant system. The use of industrial by-products to immobilise Cd in situ in polluted soils is an interesting remediation strategy. In the current investigation, two immobilizing amendments of Cd viz., Limestone (traditionally used) and Yellow gypsum (industrial by-product) have been used through a green-house pot culture experiment. Soil samples were collected from four locations based on four graded levels of DTPA extractable Cd as Site 1 (0.43 mg kg-1), Site 2 (0.92 mg kg-1), Site 3 (1.77 mg kg-1) and Site 4 (4.48 mg kg-1). The experiment was laid out in a thrice replicated Factorial Complete Randomized Design, with one factor as limestone (0, 250, 500 mg kg-1) and the other being yellow gypsum (0, 250, 500 mg kg-1) on the collected soils and groundnut was grown as a test crop. Results revealed that the DTPA-extractable Cd content in soil and Cd concentration in plants decreased significantly with the increasing doses of amendments irrespective of initial soil available Cd and types of amendment used. The effect of amendment was soil specific and in case of Site 1 (low initial Cd) the effect was more prominent. The reduction in DTPA-extractable Cd in combined application of limestone and yellow gypsum @500 mg kg-1 over the absolute control in soil under groundnut for the sites was by far the highest with the values of 83.72%, 77.17%, 48.59% and 40.63% respectively. With the combined application, Target Cancer Risk (TCR) of Cd was also reduced. Hence, combined application of limestone and yellow gypsum can be beneficial in the long run for mitigating Cd pollution.
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Affiliation(s)
- Shreya Das
- Department of Agricultural Chemistry and Soil Science, Faculty of Agriculture, Bidhan Chandra Krishi Viswavidyalaya, Mohanpur, 741252, Nadia, West Bengal, India; ICAR-Agricultural Technology Application Research Institute (ATARI) Kolkata, Sector III, Salt Lake, Kolkata, 700097, West Bengal, India
| | - Sudip Sengupta
- School of Agriculture, Swami Vivekananda University, Barrackpore, 700121, West Bengal, India
| | - Prasanta Kumar Patra
- Department of Agricultural Chemistry and Soil Science, Faculty of Agriculture, Bidhan Chandra Krishi Viswavidyalaya, Mohanpur, 741252, Nadia, West Bengal, India
| | - Pradip Dey
- ICAR-Agricultural Technology Application Research Institute (ATARI) Kolkata, Sector III, Salt Lake, Kolkata, 700097, West Bengal, India.
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3
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Zhong J, Liu Y, Chen X, Ye Z, Li Y, Li W. The impact of acid rain on cadmium phytoremediation in sunflower (Helianthus annuus L.). ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 340:122778. [PMID: 37863250 DOI: 10.1016/j.envpol.2023.122778] [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: 07/17/2023] [Revised: 10/01/2023] [Accepted: 10/17/2023] [Indexed: 10/22/2023]
Abstract
Sunflower is an ideal crop for phytoremediation of cadmium-contaminated farmland, as it brings economic benefits while conducting soil remediation. Due to industrial emissions and car exhaust, Cd contaminated areas are often accompanied by acid rain. However, the impact of acid rain on the Cd remediation capacity of sunflowers and its potential influencing factors are unclear. An experiment was manipulated to elucidate the effects of Cd concentration (0,10,50,100 μmol/L) and acid rain (pH 4.0) on the phytoremediation ability of sunflowers, in which the properties of them were explored. The results indicated that Cd stress is the main factor affecting the growth of sunflowers. Without AR, Cd treatment decreased sunflower biomass by 67.5-85.6%. Under AR, Cd treatment decreased sunflower biomass 53.9-86.4%. Compared without AR, the relative chlorophyll content with AR increased by 22.3-23.1%, while the YII with AR decreased by 6.5-20.0%. There was an interaction between acid rain and Cd stress on antioxidant enzyme activity. With AR, CAT activity at 0 μmol/L Cd treatment increased by 25.6%, compared without AR. Whether there is acid rain or not, the POD and SOD activities were increased at 10, 50 μmol/L Cd treatment, but they were decreased at 100 μmol/L Cd treatment. Among them, acid rain exacerbated the impact of POD activity (decreased by 31.4%) at 100 μmol/L Cd treatment and SOD activity (decreased by 15.1%) at 50 μmol/L Cd treatment, compared without AR. In this experiment, the phytoremediation capacity of sunflowers mainly depended on the concentration of Ca in the leaves and their antioxidant capacity. Acid rain enhanced 77.5% the total Cd accumulation at 10 μmol/L Cd treatment, compared without AR. Acid rain exacerbated the damage of Cd to the chloroplast structure of sunflowers, and reduced the accumulation of starch particles. The study findings may be useful for improving the phytoremediation of Cd-contaminated soil.
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Affiliation(s)
- Jiawen Zhong
- College of Natural Resources and Environment, Joint Institute for Environmental Research & Education, South China Agricultural University, Guangzhou 510642, China
| | - Yeqing Liu
- College of Natural Resources and Environment, Joint Institute for Environmental Research & Education, South China Agricultural University, Guangzhou 510642, China
| | - Xinheng Chen
- College of Natural Resources and Environment, Joint Institute for Environmental Research & Education, South China Agricultural University, Guangzhou 510642, China
| | - Zihao Ye
- College of Natural Resources and Environment, Joint Institute for Environmental Research & Education, South China Agricultural University, Guangzhou 510642, China
| | - Yongtao Li
- College of Natural Resources and Environment, Joint Institute for Environmental Research & Education, South China Agricultural University, Guangzhou 510642, China; Key Laboratory of Arable Land Conservation (South China), MOA, South China Agricultural University, Guangzhou 510642, China; Guangdong Province Key Laboratory for Land Use and Consolidation, South China Agricultural University, Guangzhou 510642, China
| | - Wenyan Li
- College of Natural Resources and Environment, Joint Institute for Environmental Research & Education, South China Agricultural University, Guangzhou 510642, China; Key Laboratory of Arable Land Conservation (South China), MOA, South China Agricultural University, Guangzhou 510642, China; Guangdong Province Key Laboratory for Land Use and Consolidation, South China Agricultural University, Guangzhou 510642, China.
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Moeen-Ud-Din M, Yang S, Wang J. Auxin homeostasis in plant responses to heavy metal stress. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2023; 205:108210. [PMID: 38006792 DOI: 10.1016/j.plaphy.2023.108210] [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: 07/18/2023] [Revised: 10/21/2023] [Accepted: 11/18/2023] [Indexed: 11/27/2023]
Abstract
Expeditious industrialization and anthropogenic activities have resulted in large amounts of heavy metals (HMs) being released into the environment. These HMs affect crop yields and directly threaten global food security. Therefore, significant efforts have been made to control the toxic effects of HMs on crops. When HMs are taken up by plants, various mechanisms are stimulated to alleviate HM stress, including the biosynthesis and transport of auxin in the plant. Interestingly, researchers have noted the significant potential of auxin in mediating resistance to HM stress, primarily by reducing uptake of metals, promoting chelation and sequestration in plant tissues, and mitigating oxidative damage. Both exogenous administration of auxin and manipulation of intrinsic auxin status are effective strategies to protect plants from the negative consequences of HMs stress. Regulation of genes and transcription factors related to auxin homeostasis has been shown to be related to varying degrees to the type and concentration of HMs. Therefore, to derive the maximum benefit from auxin-mediated mechanisms to attenuate HM toxicities, it is essential to gain a comprehensive understanding of signaling pathways involved in regulatory actions. This review primarily emphases on the auxin-mediated mechanisms participating in the injurious effects of HMs in plants. Thus, it will pave the way to understanding the mechanism of auxin homeostasis in regulating HM tolerance in plants and become a tool for developing sustainable strategies for agricultural growth in the future.
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Affiliation(s)
- Muhammad Moeen-Ud-Din
- School of Environmental Science and Engineering, Tianjin University, Tianjin, 300072, China
| | - Shaohui Yang
- School of Environmental Science and Engineering, Tianjin University, Tianjin, 300072, China
| | - Jiehua Wang
- School of Environmental Science and Engineering, Tianjin University, Tianjin, 300072, China.
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Xie H, Liao Z, Li J, Yang Y, Chen F, Zhu R, Xiang L, Wu S. Effects of exogenous calcium on cadmium accumulation in amaranth. CHEMOSPHERE 2023; 326:138435. [PMID: 36933838 DOI: 10.1016/j.chemosphere.2023.138435] [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: 02/04/2023] [Revised: 03/06/2023] [Accepted: 03/15/2023] [Indexed: 06/18/2023]
Abstract
Calcium oxalate (CaOx) crystals in plants act as a sink for excess Ca and play an essential role in detoxifying heavy metals (HMs). However, the mechanism and related influencing factors remain unclear. Amaranth (Amaranthus tricolor L.) is a common edible vegetable rich in CaOx and a potential Cd hyperaccumulation species. In this study, the hydroponic experiment was carried out to investigate the effect of exogenous Ca concentrations on Cd uptake by amaranth. The results showed that either insufficient or excess Ca supply inhibited amaranth growth, while the Cd bioconcentration factor (BCF) increased with Ca concentration. Meanwhile, the sequence extraction results demonstrated that Cd mainly accumulated as pectate and protein-bound species (NaCl extracted) in the root and stem, compared to pectate, protein, and phosphate-bound (acetic acid extractable) species in the leaf. Correlation analysis showed that the concentration of exogenous Ca was positively correlated with amaranth-produced CaOx crystals but negatively correlated with insoluble oxalate-bound Cd in the leaf. However, since the accumulated insoluble oxalate-bound Cd was relatively low, Cd detoxification via the CaOx pathway in amaranth is limited.
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Affiliation(s)
- Hong Xie
- CAS Key Laboratory of Mineralogy and Metallogeny & Guangdong Provincial Key Laboratory of Mineral Physics and Materials, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, 511 Kehua Street, 510640, Guangzhou, China; CAS Center for Excellence in Deep Earth Science, 511 Kehua Street, 510640, Guangzhou, China; University of Chinese Academy of Sciences, 19 Yuquan Road, 100049, Beijing, China
| | - Zisheng Liao
- CAS Key Laboratory of Mineralogy and Metallogeny & Guangdong Provincial Key Laboratory of Mineral Physics and Materials, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, 511 Kehua Street, 510640, Guangzhou, China; CAS Center for Excellence in Deep Earth Science, 511 Kehua Street, 510640, Guangzhou, China; University of Chinese Academy of Sciences, 19 Yuquan Road, 100049, Beijing, China
| | - Jun Li
- CAS Key Laboratory of Mineralogy and Metallogeny & Guangdong Provincial Key Laboratory of Mineral Physics and Materials, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, 511 Kehua Street, 510640, Guangzhou, China; CAS Center for Excellence in Deep Earth Science, 511 Kehua Street, 510640, Guangzhou, China; University of Chinese Academy of Sciences, 19 Yuquan Road, 100049, Beijing, China
| | - Yongqiang Yang
- CAS Key Laboratory of Mineralogy and Metallogeny & Guangdong Provincial Key Laboratory of Mineral Physics and Materials, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, 511 Kehua Street, 510640, Guangzhou, China; CAS Center for Excellence in Deep Earth Science, 511 Kehua Street, 510640, Guangzhou, China
| | - Fanrong Chen
- CAS Key Laboratory of Mineralogy and Metallogeny & Guangdong Provincial Key Laboratory of Mineral Physics and Materials, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, 511 Kehua Street, 510640, Guangzhou, China; CAS Center for Excellence in Deep Earth Science, 511 Kehua Street, 510640, Guangzhou, China
| | - Runliang Zhu
- CAS Key Laboratory of Mineralogy and Metallogeny & Guangdong Provincial Key Laboratory of Mineral Physics and Materials, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, 511 Kehua Street, 510640, Guangzhou, China; CAS Center for Excellence in Deep Earth Science, 511 Kehua Street, 510640, Guangzhou, China
| | - Li Xiang
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, 100700, Beijing, China
| | - Shijun Wu
- CAS Key Laboratory of Mineralogy and Metallogeny & Guangdong Provincial Key Laboratory of Mineral Physics and Materials, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, 511 Kehua Street, 510640, Guangzhou, China; CAS Center for Excellence in Deep Earth Science, 511 Kehua Street, 510640, Guangzhou, China.
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6
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Sun S, Fan X, Feng Y, Wang X, Gao H, Song F. Arbuscular mycorrhizal fungi influence the uptake of cadmium in industrial hemp (Cannabis sativa L.). CHEMOSPHERE 2023; 330:138728. [PMID: 37080470 DOI: 10.1016/j.chemosphere.2023.138728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 04/14/2023] [Accepted: 04/17/2023] [Indexed: 05/03/2023]
Abstract
Phytoremediation is currently a more environmentally friendly and economical measure for the remediation of cadmium (Cd) contaminated soil. Heavy metal-resistant plant species, Cannabis sativa L. was inoculated with Rhizophagus irregularis to investigate the mechanisms of mycorrhizal in improving the Cd remediation ability of C. sativa. The results showed that after inoculation with R. irregularis, C. sativa root Cd contents increased significantly, and leaf Cd enrichment decreased significantly. At the transcriptional level, R. irregularis down-regulated the expression of the ABC transporter family but up-regulated differentially expressed genes regulating low molecular weight organic acids. The levels of malic acid, citric acid, and lactic acid were significantly increased in the rhizosphere soil, and they were significantly and strongly related to oxidizable Cd concentrations. Then citric acid levels were considerably and positively connected to exchangeable Cd concentrations. Our findings revealed that through regulating the movement of root molecules, arbuscular mycorrhizal fungus enhanced the heavy metal tolerance of C. sativa even more, meanwhile, they changed the Cd chemical forms by altering the composition of low molecular weight organic acids, which in turn affected soil Cd bioavailability.
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Affiliation(s)
- Simiao Sun
- Heilongjiang Provincial Key Laboratory of Ecological Restoration and Resource Utilization for Cold Region, School of Life Sciences, Heilongjiang University, Harbin, 150080, China; Jiaxiang Industrial Technology Research Institute, Heilongjiang University, Jining, 272400, China; Heilongjiang Fertilizer Engineering Technology Research Center, Heilongjiang Academy of Agricultural Sciences, Harbin, 150086, China; Heilongjiang Academy of Black Soil Conservation & Utilization, Heilongjiang Academy of Agricultural Sciences, Harbin, 150086, China
| | - Xiaoxu Fan
- Heilongjiang Provincial Key Laboratory of Ecological Restoration and Resource Utilization for Cold Region, School of Life Sciences, Heilongjiang University, Harbin, 150080, China
| | - Yuhan Feng
- Heilongjiang Provincial Key Laboratory of Ecological Restoration and Resource Utilization for Cold Region, School of Life Sciences, Heilongjiang University, Harbin, 150080, China; Jiaxiang Industrial Technology Research Institute, Heilongjiang University, Jining, 272400, China
| | - Xiaohui Wang
- Heilongjiang Provincial Key Laboratory of Ecological Restoration and Resource Utilization for Cold Region, School of Life Sciences, Heilongjiang University, Harbin, 150080, China; Jiaxiang Industrial Technology Research Institute, Heilongjiang University, Jining, 272400, China
| | - Hongsheng Gao
- Heilongjiang Fertilizer Engineering Technology Research Center, Heilongjiang Academy of Agricultural Sciences, Harbin, 150086, China; Heilongjiang Academy of Black Soil Conservation & Utilization, Heilongjiang Academy of Agricultural Sciences, Harbin, 150086, China
| | - Fuqiang Song
- Heilongjiang Provincial Key Laboratory of Ecological Restoration and Resource Utilization for Cold Region, School of Life Sciences, Heilongjiang University, Harbin, 150080, China; Jiaxiang Industrial Technology Research Institute, Heilongjiang University, Jining, 272400, China.
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Rolón-Cárdenas GA, Arvizu-Gómez JL, Soria-Guerra RE, Pacheco-Aguilar JR, Alatorre-Cobos F, Hernández-Morales A. The role of auxins and auxin-producing bacteria in the tolerance and accumulation of cadmium by plants. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2022; 44:3743-3764. [PMID: 35022877 DOI: 10.1007/s10653-021-01179-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Accepted: 12/05/2021] [Indexed: 05/16/2023]
Abstract
Cadmium (Cd) is one of the most toxic heavy metals for plant physiology and development. This review discusses Cd effects on auxin biosynthesis and homeostasis, and the strategies for restoring plant growth based on exogenous auxin application. First, the two well-characterized auxin biosynthesis pathways in plants are described, as well as the effect of exogenous auxin application on plant growth. Then, review describes the impacts of Cd on the content, biosynthesis, conjugation, and oxidation of endogenous auxins, which are related to a decrease in root development, photosynthesis, and biomass production. Finally, compelling evidence of the beneficial effects of auxin-producing rhizobacteria in plants exposed to Cd is showed, focusing on photosynthesis, oxidative stress, and production of antioxidant compounds and osmolytes that counteract Cd toxicity, favoring plant growth and improve phytoremediation efficiency. Expanding our understanding of the positive effects of exogenous auxins application and the interactions between bacteria and plants growing in Cd-polluted environments will allow us to propose phytoremediation strategies for restoring environments contaminated with this metal.
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Affiliation(s)
- Gisela Adelina Rolón-Cárdenas
- Posgrado en Ciencias Químicas, Facultad de Ciencias Químicas, Universidad Autónoma de San Luis Potosí, Avenida Dr. Manuel Nava 6, Zona Universitaria, 78210, San Luis Potosí, San Luis Potosí, México
- Facultad de Estudios Profesionales Zona Huasteca, Universidad Autónoma de San Luis Potosí, Romualdo del Campo 501, Fraccionamiento Rafael Curiel, 79060, Ciudad Valles, San Luis Potosí, México
| | - Jackeline Lizzeta Arvizu-Gómez
- Secretaría de Investigación y Posgrado, Centro Nayarita de Innovación y Transferencia de Tecnología (CENITT), Universidad Autónoma de Nayarit, Tepic, Nayarit, México
| | - Ruth Elena Soria-Guerra
- Posgrado en Ciencias Químicas, Facultad de Ciencias Químicas, Universidad Autónoma de San Luis Potosí, Avenida Dr. Manuel Nava 6, Zona Universitaria, 78210, San Luis Potosí, San Luis Potosí, México
| | | | | | - Alejandro Hernández-Morales
- Posgrado en Ciencias Químicas, Facultad de Ciencias Químicas, Universidad Autónoma de San Luis Potosí, Avenida Dr. Manuel Nava 6, Zona Universitaria, 78210, San Luis Potosí, San Luis Potosí, México.
- Facultad de Estudios Profesionales Zona Huasteca, Universidad Autónoma de San Luis Potosí, Romualdo del Campo 501, Fraccionamiento Rafael Curiel, 79060, Ciudad Valles, San Luis Potosí, México.
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Požgajová M, Navrátilová A, Kovár M. Curative Potential of Substances with Bioactive Properties to Alleviate Cd Toxicity: A Review. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:12380. [PMID: 36231680 PMCID: PMC9566368 DOI: 10.3390/ijerph191912380] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Revised: 09/23/2022] [Accepted: 09/26/2022] [Indexed: 06/16/2023]
Abstract
Rapid urbanization and industrialization have led to alarming cadmium (Cd) pollution. Cd is a toxic heavy metal without any known physiological function in the organism, leading to severe health threat to the population. Cd has a long half-life (10-30 years) and thus it represents serious concern as it to a great extent accumulates in organs or organelles where it often causes irreversible damage. Moreover, Cd contamination might further lead to certain carcinogenic and non-carcinogenic health risks. Therefore, its negative effect on population health has to be minimalized. As Cd is able to enter the body through the air, water, soil, and food chain one possible way to defend and eliminate Cd toxicities is via dietary supplements that aim to eliminate the adverse effects of Cd to the organism. Naturally occurring bioactive compounds in food or medicinal plants with beneficial, mostly antioxidant, anti-inflammatory, anti-aging, or anti-tumorigenesis impact on the organism, have been described to mitigate the negative effect of various contaminants and pollutants, including Cd. This study summarizes the curative effect of recently studied bioactive substances and mineral elements capable to alleviate the negative impact of Cd on various model systems, supposing that not only the Cd-derived health threat can be reduced, but also prevention and control of Cd toxicity and elimination of Cd contamination can be achieved in the future.
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Affiliation(s)
- Miroslava Požgajová
- AgroBioTech Research Centre, Slovak University of Agriculture in Nitra, Tr. A. Hlinku 2, 94976 Nitra, Slovakia
| | - Alica Navrátilová
- Institute of Nutrition and Genomics, Faculty of Agrobiology and Food Resources, Slovak University of Agriculture in Nitra, Tr. A. Hlinku 2, 94976 Nitra, Slovakia
| | - Marek Kovár
- Institute of Plant and Environmental Science, Faculty of Agrobiology and Food Resources, Slovak University of Agriculture in Nitra, Tr. A. Hlinku 2, 94976 Nitra, Slovakia
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Hakeem KR, Alharby HF, Pirzadah TB. Exogenously applied calcium regulates antioxidative system and reduces cadmium-uptake in Fagopyrum esculentum. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2022; 180:17-26. [PMID: 35367929 DOI: 10.1016/j.plaphy.2022.03.011] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2021] [Revised: 03/10/2022] [Accepted: 03/11/2022] [Indexed: 06/14/2023]
Abstract
Calcium (Ca) being macronutrient plays a prominent role in signal transduction during various abiotic stresses. However, their involvements to alleviate heavy metal stress in plants remain evasive. In the present investigation, we found that application of exogenous Ca to Cd-stressed common buckwheat plants reversed the toxic effects of Cd by enhancing root and shoot length, biomass accumulation and reduced Cd-uptake as revealed by the translocation factor (<1), indicating more Cd is restrained in the roots. Moreover, present data also revealed that exogenous Ca significantly alleviated the Cd-induced oxidative damage by enhancing proline by 66.12% and 47.20% respectively in roots and shoots than control. The decline in the total chlorophyll content upon Ca application in Cd-treated plants was found less (38.96%) compared to buckwheat plants treated with Cd-stress alone (80.2%). APX and POD activities increased by 1.97 and 1.44 times in shoots, respectively, and increased by 2.81and 1.33 times in roots, respectively compared to the Cd-treated plants alone. The mineral content (Ca, K, Mg, Fe, P and S) that were suppressed in Cd-treated plants in both root and shoot were restored upon exogenous Ca application. Further, the correlation analysis showed significant positive correlation among proline and GSH synthesis in the Ca + Cd treatment. The correlations of Ca revealed to be positive with enhanced levels of APX and POD activity. Our data showed that exogenous application of Ca minimizes the Cd-toxicity and modulates the physiological and biochemical pathway in common buckwheat to withstand Cd-induced oxidative stress.
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Affiliation(s)
- Khalid Rehman Hakeem
- Department of Biological Sciences, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia; Princess Dr Najla Bint Saud Al- Saud Center for Excellence Research in Biotechnology, King Abdulaziz University, Jeddah, 21589, Saudi Arabia.
| | - Hesham F Alharby
- Department of Biological Sciences, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia; Princess Dr Najla Bint Saud Al- Saud Center for Excellence Research in Biotechnology, King Abdulaziz University, Jeddah, 21589, Saudi Arabia
| | - Tanveer Bilal Pirzadah
- University Centre for Research and Development (UCRD), Chandigarh University, Punjab, India
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10
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Abbas T, Fan R, Hussain S, Sattar A, Khalid S, Butt M, Shahzad U, Muhammad Atif H, Batool M, Ullah S, Li Y, Al-Hashimi A, Elshikh MS, Al-Yahyai R. Protective effect of jasmonic acid and potassium against cadmium stress in peas ( Pisum sativum L.). Saudi J Biol Sci 2022; 29:2626-2633. [PMID: 35531166 PMCID: PMC9073065 DOI: 10.1016/j.sjbs.2021.12.051] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2021] [Revised: 11/29/2021] [Accepted: 12/20/2021] [Indexed: 11/18/2022] Open
Abstract
A combination of mineral nutrients and plant growth regulators should be assessed to improve crop performance under various abiotic stresses. There is a need to include plant growth regulators in fertilization regime of various crops along with essential mineral nutrients, especially when they are irrigated with polluted water with higher levels of heavy metals. The performance of pea was evaluated under cadmium (Cd) stress coupled with potassium (K) and jasmonic acid (JA) supplementation. The Cd stress (50 μM) was applied to soil (sandy loam) grown pea plants as basal dose after a month of sowing. The control and stressed plants were then supplemented with K (5 M), JA (0.5 mM) and their collective application along with control as distilled water. Cd stress showed a marked reduction in growth pattern, however, the collective supplementation sufficiently improved the growth pattern of stressed peas plants as evidenced by improvement in shoot length (cm), root length (cm), number of leaves per plant, leaf area (cm2), plant fresh and dry weight (gm). Potassium application under Cd stress significantly enhanced internodal distance (cm) while the number of seeds per pod and relative water contents remained nonsignificant. The applied treatment (JA + K) under Cd stress prominently improved enzymatic activities, which were measured as nitrate reductase activity (NRA), nitrite reductase activity (NiRA), superoxide dismutase (SOD), peroxidase (POD) and catalase (CAT). Cd stress impacted the biochemical profile by enhancing antioxidant capacity (AC), antioxidant activity (AA), total phenols (TP), while reducing total soluble protein (TSP), chlorophyll 'a', chlorophyll 'b' and carotenoids. The combined application of JA and K under Cd stress enhanced AC, AA, TP, Chl a and b, TSP and carotenoids. The results indicate that foliar application of JA and K efficiently negated the harmful effects of Cd stress on peas.
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Affiliation(s)
- Tahira Abbas
- College of Agriculture, Bahauddin Zakariya University, Bahadur Sub campus Layyah, Pakistan
| | - Rong Fan
- College of Agriculture, Guizhou University, Guiyang 550025, China
| | - Sajjad Hussain
- Department of Horticulture, Faculty of Agriculture, Bahauddin Zakariya University, Multan, Pakistan
| | - Abdul Sattar
- College of Agriculture, Bahauddin Zakariya University, Bahadur Sub campus Layyah, Pakistan
| | - Samina Khalid
- Department of Environmental Sciences, COMSATS University Islamabad, Vehari Campus, Pakistan
| | - Madiha Butt
- Department of Horticulture, Faculty of Agricultural Sciences, Ghazi University Dera Ghazi Khan, Pakistan
| | - Umbreen Shahzad
- College of Agriculture, Bahauddin Zakariya University, Bahadur Sub campus Layyah, Pakistan
| | - Hafiz Muhammad Atif
- College of Agriculture, Bahauddin Zakariya University, Bahadur Sub campus Layyah, Pakistan
| | - Momal Batool
- Department of Horticulture, Faculty of Agriculture, Bahauddin Zakariya University, Multan, Pakistan
| | - Sami Ullah
- Department of Horticulture, MNS University of Agriculture Multan Pakistan
| | - Yunzhou Li
- Department of Plant Pathology, College of Agriculture, Guizhou University, Guiyang 550025, Guizhou, China
| | - Abdulrahman Al-Hashimi
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Mohamed S. Elshikh
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Rashid Al-Yahyai
- Department of Plant Sciences, College of Agricultural and Marine Sciences, Sultan Qaboos University, Oman
- Department of Crop Science, University of Reading, UK
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11
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Zhang L, Zou D, Zeng N, Li L, Xiao Z. Slaked lime improves growth, antioxidant capacity and reduces Cd accumulation of peanut (Arachis hypogaea L.) under Cd stress. Sci Rep 2022; 12:4388. [PMID: 35288602 PMCID: PMC8921238 DOI: 10.1038/s41598-022-08339-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Accepted: 03/07/2022] [Indexed: 11/25/2022] Open
Abstract
Slaked lime has been used to remediate contaminated agricultural soils as an in situ chemical immobilization amendment for a long time. However, the effects of slaked lime on peanut and soil cadmium (Cd) levels remain poorly understood with respect to remediating Cd-contaminated soil. In this study, six rates of slaked lime (e.g., 0, 300, 600, 900, 1200 and 1500 kg ha-1) were applied to evaluate the effects of slaked lime treatments on soil pH and the growth, Cd accumulation and physiology characteristics of peanut, which were in Cd-contaminated soil, and 0 kg ha-1 was taken as the control. The results indicated that slaked lime application significantly increased soil pH and reduced total Cd contents in peanut tissues at all growth stages. As the rates of slaked lime were increased, kernel biomass increased in the maturity stage, which increased peanut yields. The irregular variations in catalase, peroxidase, and superoxide dismutase activities and chlorophyll and malondialdehyde contents that were observed at all growth stages may be due to the interactions among soil pH, Ca nutrients and Cd, etc. In summary, slaked lime is suitable as an in situ chemical immobilization amendment to increase Cd immobilization and peanut yields in Cd-contaminated soil.
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Affiliation(s)
- Liqing Zhang
- College of Resources and Environment, Hunan Agricultural University, Changsha, 410128, Hunan, People's Republic of China
| | - Dongsheng Zou
- College of Resources and Environment, Hunan Agricultural University, Changsha, 410128, Hunan, People's Republic of China
| | - Ningbo Zeng
- College of Agronomy, Hunan Agricultural University, Changsha, 410128, Hunan, People's Republic of China
| | - Lin Li
- College of Agronomy, Hunan Agricultural University, Changsha, 410128, Hunan, People's Republic of China.
| | - Zhihua Xiao
- College of Resources and Environment, Hunan Agricultural University, Changsha, 410128, Hunan, People's Republic of China.
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12
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Brassinosteroids Mitigate Cadmium Effects in Arabidopsis Root System without Any Cooperation with Nitric Oxide. Int J Mol Sci 2022; 23:ijms23020825. [PMID: 35055009 PMCID: PMC8776143 DOI: 10.3390/ijms23020825] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 01/09/2022] [Accepted: 01/10/2022] [Indexed: 02/06/2023] Open
Abstract
The heavy metal cadmium (Cd) affects root system development and quiescent center (QC)-definition in Arabidopsis root-apices. The brassinosteroids-(BRs)-mediated tolerance to heavy metals has been reported to occur by a modulation of nitric oxide (NO) and root auxin-localization. However, how BRs counteract Cd-action in different root types is unknown. This research aimed to find correlations between BRs and NO in response to Cd in Arabidopsis’s root system, monitoring their effects on QC-definition and auxin localization in root-apices. To this aim, root system developmental changes induced by low levels of 24-epibrassinolide (eBL) or by the BR-biosynthesis inhibitor brassinazole (Brz), combined or not with CdSO4, and/or with the NO-donor nitroprusside (SNP), were investigated using morpho-anatomical and NO-epifluorescence analyses, and monitoring auxin-localization by the DR5::GUS system. Results show that eBL, alone or combined with Cd, enhances lateral (LR) and adventitious (AR) root formation and counteracts QC-disruption and auxin-delocalization caused by Cd in primary root/LR/AR apices. Exogenous NO enhances LR and AR formation in Cd-presence, without synergism with eBL. The NO-signal is positively affected by eBL, but not in Cd-presence, and BR-biosynthesis inhibition does not change the low NO-signal caused by Cd. Collectively, results show that BRs ameliorate Cd-effects on all root types acting independently from NO.
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13
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Feki K, Tounsi S, Mrabet M, Mhadhbi H, Brini F. Recent advances in physiological and molecular mechanisms of heavy metal accumulation in plants. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:64967-64986. [PMID: 34599711 DOI: 10.1007/s11356-021-16805-y] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Accepted: 09/24/2021] [Indexed: 05/27/2023]
Abstract
Among abiotic stress, the toxicity of metals impacts negatively on plants' growth and productivity. This toxicity promotes various perturbations in plants at different levels. To withstand stress, plants involve efficient mechanisms through the implication of various signaling pathways. These pathways enhance the expression of many target genes among them gene coding for metal transporters. Various metal transporters which are localized at the plasma membrane and/or at the tonoplast are crucial in metal stress response. Furthermore, metal detoxification is provided by metal-binding proteins like phytochelatins and metallothioneins. The understanding of the molecular basis of metal toxicities signaling pathways and tolerance mechanisms is crucial for genetic engineering to produce transgenic plants that enhance phytoremediation. This review presents an overview of the recent advances in our understanding of metal stress response. Firstly, we described the effect of metal stress on plants. Then, we highlight the mechanisms involved in metal detoxification and the importance of the regulation in the response to heavy metal stress. Finally, we mentioned the importance of genetic engineering for enhancing the phytoremediation technique. In the end, the response to heavy metal stress is complex and implicates various components. Thus, further studies are needed to better understand the mechanisms involved in response to this abiotic stress.
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Affiliation(s)
- Kaouthar Feki
- Laboratory of Legumes and Sustainable Agrosystem (L2AD), Center of Biotechnology of Borj-Cédria, BP901, 2050, Hammam-Lif, Tunisia
| | - Sana Tounsi
- Biotechnology and Plant Improvement Laboratory, Center of Biotechnology of Sfax (CBS), University of Sfax, B.P "1177", 3018, Sfax, Tunisia
| | - Moncef Mrabet
- Laboratory of Legumes and Sustainable Agrosystem (L2AD), Center of Biotechnology of Borj-Cédria, BP901, 2050, Hammam-Lif, Tunisia
| | - Haythem Mhadhbi
- Laboratory of Legumes and Sustainable Agrosystem (L2AD), Center of Biotechnology of Borj-Cédria, BP901, 2050, Hammam-Lif, Tunisia
| | - Faiçal Brini
- Biotechnology and Plant Improvement Laboratory, Center of Biotechnology of Sfax (CBS), University of Sfax, B.P "1177", 3018, Sfax, Tunisia.
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14
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Gong B, He E, Romero-Freire A, Ruan J, Yang W, Zhang P, Qiu H. Do essential elements (P and Fe) have mitigation roles in the toxicity of individual and binary mixture of yttrium and cerium to Triticum aestivum? JOURNAL OF HAZARDOUS MATERIALS 2021; 416:125761. [PMID: 33819642 DOI: 10.1016/j.jhazmat.2021.125761] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Revised: 03/10/2021] [Accepted: 03/23/2021] [Indexed: 06/12/2023]
Abstract
Essential elements can affect the bioavailability, uptake, and toxicity of metals. However, hardly any research has focused on the roles of essential elements on the toxicity of rare earth metals. Here we examined how P and Fe modified the individual and binary toxicity of Y and Ce to Triticum aestivum, respectively. Standard root elongation tests were used to quantify the toxicity of both single and binary mixtures at three levels of P addition (1, 5, and 10 μM) and Fe addition (0.1, 1, and 5 mM). Our results showed that both P and Fe can alleviate individual toxicity of Y or Ce irrespective of the dose indicators as suggested by the enhanced EC50 values. Both P and Fe might mitigate Y/Ce toxicity by limiting Y/Ce uptake into roots and improving nutritional status of wheats, whereas P can also decrease free Y/Ce ion activities in the exposure media. As for the mixture toxicity of Y and Ce, only improved P, but not Fe can exhibit approximately additive mixture toxicity, which can be adequately predicted by the simple Concentration Addition model. Our results suggested the important roles of P and Fe in assessing Y and Ce toxicity accurately.
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Affiliation(s)
- Bing Gong
- School of Geographic Sciences, East China Normal University, Shanghai 200241, China; School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Erkai He
- School of Geographic Sciences, East China Normal University, Shanghai 200241, China; Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Sun Yat-sen University, Guangzhou 510006, China.
| | - Ana Romero-Freire
- Department of Soil Science, University of Granada, Avd. Fuente Nueva, Granada 18002, Spain
| | - Jujun Ruan
- Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Sun Yat-sen University, Guangzhou 510006, China; School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510006, China
| | - Wenjun Yang
- Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Sun Yat-sen University, Guangzhou 510006, China; School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510006, China
| | - Peihua Zhang
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Hao Qiu
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
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15
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Aslam S, Gul N, Mir MA, Asgher M, Al-Sulami N, Abulfaraj AA, Qari S. Role of Jasmonates, Calcium, and Glutathione in Plants to Combat Abiotic Stresses Through Precise Signaling Cascade. FRONTIERS IN PLANT SCIENCE 2021; 12:668029. [PMID: 34367199 PMCID: PMC8340019 DOI: 10.3389/fpls.2021.668029] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Accepted: 05/21/2021] [Indexed: 05/11/2023]
Abstract
Plant growth regulators have an important role in various developmental processes during the life cycle of plants. They are involved in abiotic stress responses and tolerance. They have very well-developed capabilities to sense the changes in their external milieu and initiate an appropriate signaling cascade that leads to the activation of plant defense mechanisms. The plant defense system activation causes build-up of plant defense hormones like jasmonic acid (JA) and antioxidant systems like glutathione (GSH). Moreover, calcium (Ca2+) transients are also seen during abiotic stress conditions depicting the role of Ca2+ in alleviating abiotic stress as well. Therefore, these growth regulators tend to control plant growth under varying abiotic stresses by regulating its oxidative defense and detoxification system. This review highlights the role of Jasmonates, Calcium, and glutathione in abiotic stress tolerance and activation of possible novel interlinked signaling cascade between them. Further, phyto-hormone crosstalk with jasmonates, calcium and glutathione under abiotic stress conditions followed by brief insights on omics approaches is also elucidated.
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Affiliation(s)
- Saima Aslam
- Department of Biotechnology, School of Biosciences and Biotechnology, Baba Ghulam Shah Badshah University, Rajouri, India
| | - Nadia Gul
- Department of Biotechnology, School of Biosciences and Biotechnology, Baba Ghulam Shah Badshah University, Rajouri, India
| | - Mudasir A. Mir
- Division of Plant Biotechnology, Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir (SKUAST-K), Srinagar, India
| | - Mohd. Asgher
- Department of Botany, School of Biosciences and Biotechnology, Baba Ghulam Shah Badshah University, Rajouri, India
| | - Nadiah Al-Sulami
- Department of Biological Sciences, Faculty of Sciences, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Aala A. Abulfaraj
- Department of Biological Sciences, Science and Arts College, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Sameer Qari
- Genetics and Molecular Biology Central Laboratory (GMCL), Department of Biology, Aljumun University College, Umm Al-Qura University, Mecca, Saudi Arabia
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16
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Sakouhi L, Kharbech O, Massoud MB, Gharsallah C, Hassine SB, Munemasa S, Murata Y, Chaoui A. Calcium and ethylene glycol tetraacetic acid mitigate toxicity and alteration of gene expression associated with cadmium stress in chickpea (Cicer arietinum L.) shoots. PROTOPLASMA 2021; 258:849-861. [PMID: 33432416 DOI: 10.1007/s00709-020-01605-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Accepted: 12/28/2020] [Indexed: 05/20/2023]
Abstract
In the aim to estimate the protective role of calcium (Ca) and ethylene glycol tetraacetic acid (EGTA) against cadmium (Cd)-induced damage, chickpea (Cicer arietinum L.) seeds were exposed to 200 μM Cd stress for 6 days or 3 days then subjected to co-treatment of the metal with either 100 mM CaCl2 or 100 μM EGTA for 3 additional days. The addition of Ca and EGTA improved seedling growth. This protecting effect was correlated to the alleviation of the metal-induced oxidative stress, exemplified by the reduction of hydrogen peroxide (H2O2) contents. Besides, Ca and EGTA stimulated thioredoxin (Trx) and thioredoxin reductase (NTR) activities (2.75- and 1.75-fold increase when compared to Cd-stressed, respectively) protecting, thereby, protein -SH groups from the Cd-mediated oxidation, and modulated ferredoxin (Fdx) activity to a control level. Moreover, Ca and EGTA reinstated the glutathione redox steady state, mainly via preserving a high level of glutathione reduced form (GSH). This effect coincided with the maintaining of the Cd-stimulated glutathione reductase (GR) activity and the decline of glutathione peroxidase (GPX, 43% lower than Cd-stressed shoots) activity. Ca and EGTA counteracted the inhibitory effect of Cd on the activity and gene expression of Cu/Zn-superoxide dismutase (Cu/Zn-SOD) isoenzyme and modulated the activities of catalase (CAT) and ascorbate peroxidase (APX). Overall, our results provided evidence that Ca and EGTA supplement could be a promising approach in the remediation of Cd-contaminated environment.
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Affiliation(s)
- Lamia Sakouhi
- Faculty of Sciences of Bizerte, LR18ES38 Plant Toxicology and Environmental Microbiology, University of Carthage, 7021, Bizerte, Tunisia.
| | - Oussama Kharbech
- Faculty of Sciences of Bizerte, LR18ES38 Plant Toxicology and Environmental Microbiology, University of Carthage, 7021, Bizerte, Tunisia
| | - Marouane Ben Massoud
- Faculty of Sciences of Bizerte, LR18ES38 Plant Toxicology and Environmental Microbiology, University of Carthage, 7021, Bizerte, Tunisia
- Proteomics Research Group, School of Biochemistry and Cell Biology & Environmental Research Institute, University College Cork, Lee Maltings, Prospect Row, Mardyke, Cork, Ireland
| | - Charfeddine Gharsallah
- Laboratory of Molecular Genetics, Immunology and Biotechnology, Faculty of Sciences of Tunis, University of Tunis ElManar, 2092, Tunis, Tunisia
| | - Sihem Ben Hassine
- Faculty of Sciences of Bizerte, LR18ES38 Plant Toxicology and Environmental Microbiology, University of Carthage, 7021, Bizerte, Tunisia
| | - Shintaro Munemasa
- Graduate School of Environmental and Life Science, Okayama University, Okayama, 700-8530, Japan
| | - Yoshiyuki Murata
- Graduate School of Environmental and Life Science, Okayama University, Okayama, 700-8530, Japan
| | - Abdelilah Chaoui
- Faculty of Sciences of Bizerte, LR18ES38 Plant Toxicology and Environmental Microbiology, University of Carthage, 7021, Bizerte, Tunisia
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17
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Yang H, Xiong Z, Xu Z, Liu R. Interactive Effects of Lanthanum and Calcium on Cadmium Accumulation in Wheat with Special Reference to TaNramp5 Expression Regulated by Calmodulin. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:6870-6878. [PMID: 34101455 DOI: 10.1021/acs.jafc.1c00365] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Lanthanum (La), calcium (Ca), and cadmium (Cd) have similar physical and chemical properties because of their similar ionic radius. Although the interactions between La, Ca, and Cd have been frequently reported in plants, few studies have investigated the interactive effects of La and Ca on the growth and Cd accumulation in plants. Therefore, we investigated the interactive effects of La and Ca on the growth and Cd accumulation in wheat under Cd exposure by a hydroponic experiment. The results indicated that wheat growth was significantly affected by La-Cd and La-Ca interactions. The accumulation of Cd in wheat was significantly affected by La-Ca and La-Cd interactions and La-Ca-Cd interplay. Correlation analysis indicated that Ca deficiency stimulated La to promote wheat growth and mitigate Cd toxicity. Simultaneously, a low Ca supply stimulated La to decrease Cd accumulation in wheat and induce TaNramp5 expression. In addition, Cd accumulation in wheat was significantly affected by the W7-La interaction and W7-La-Ca interplay. All of the results suggested that La, Ca, and Cd probably share the same binding sites in calmodulin (TaCaM) and La could affect Cd accumulation in wheat by interacting with TaCaM and then downregulating the expression of TaNramp5.
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Affiliation(s)
- Hua Yang
- School of Geography and Environmental Sciences, Guizhou Normal University, Guiyang, Guizhou 550025, People's Republic of China
- School of Resources and Environmental Science, Wuhan University, Wuhan, Hubei 430079, People's Republic of China
- State Key Laboratory Incubation Base for Karst Mountain Ecology Environment of Guizhou Province, Guiyang, Guizhou 550001, People's Republic of China
| | - Zhiting Xiong
- School of Resources and Environmental Science, Wuhan University, Wuhan, Hubei 430079, People's Republic of China
| | - Zhongrui Xu
- School of Resources and Environmental Science, Wuhan University, Wuhan, Hubei 430079, People's Republic of China
| | - Rongxiang Liu
- School of Resources and Environmental Science, Wuhan University, Wuhan, Hubei 430079, People's Republic of China
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18
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Tailoring Alginate/Chitosan Microparticles Loaded with Chemical and Biological Agents for Agricultural Application and Production of Value-Added Foods. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app11094061] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
This work reviews the recent development of biopolymer-based delivery systems for agricultural application. Encapsulation into biopolymer microparticles ensures the protection and targeted delivery of active agents while offering controlled release with higher efficiency and environmental safety for ecological and sustainable plant production. Encapsulation of biological agents provides protection and increases its survivability while providing an environment safe for growth. The application of microparticles loaded with chemical and biological agents presents an innovative way to stimulate plant metabolites synthesis. This enhances plants’ defense against pests and pathogens and results in the production of higher quality food (i.e., higher plant metabolites share). Ionic gelation was presented as a sustainable method in developing biopolymeric microparticles based on the next-generation biopolymers alginate and chitosan. Furthermore, this review highlights the advantages and disadvantages of advanced formulations against conventional ones. The significance of plant metabolites stimulation and their importance in functional food production is also pointed out. This review offers guidelines in developing biopolymeric microparticles loaded with chemical and biological agents and guidelines for the application in plant production, underlining its effect on the plant metabolites synthesis.
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19
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Zhao B, Liu Q, Wang B, Yuan F. Roles of Phytohormones and Their Signaling Pathways in Leaf Development and Stress Responses. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:3566-3584. [PMID: 33739096 DOI: 10.1021/acs.jafc.0c07908] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Phytohormones participate in various processes over the course of a plant's lifecycle. In addition to the five classical phytohormones (auxins, cytokinins, gibberellins, abscisic acid, and ethylene), phytohormones such as brassinosteroids, jasmonic acid, salicylic acid, strigolactones, and peptides also play important roles in plant growth and stress responses. Given the highly interconnected nature of phytohormones during plant development and stress responses, it is challenging to study the biological function of a single phytohormone in isolation. In the current Review, we describe the combined functions and signaling cascades (especially the shared points and pathways) of various phytohormones in leaf development, in particular, during leaf primordium initiation and the establishment of leaf polarity and leaf morphology as well as leaf development under various stress conditions. We propose a model incorporating the roles of multiple phytohormones in leaf development and stress responses to illustrate the underlying combinatorial signaling pathways. This model provides a reference for breeding stress-resistant crops.
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Affiliation(s)
- Boqing Zhao
- Shandong Provincial Key Laboratory of Plant Stress, College of Life Sciences, Shandong Normal University, Ji'nan, Shandong 250014, P. R. China
| | - Qingyun Liu
- Shandong Provincial Key Laboratory of Plant Stress, College of Life Sciences, Shandong Normal University, Ji'nan, Shandong 250014, P. R. China
| | - Baoshan Wang
- Shandong Provincial Key Laboratory of Plant Stress, College of Life Sciences, Shandong Normal University, Ji'nan, Shandong 250014, P. R. China
| | - Fang Yuan
- Shandong Provincial Key Laboratory of Plant Stress, College of Life Sciences, Shandong Normal University, Ji'nan, Shandong 250014, P. R. China
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20
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Nguyen A, Richter O, Le BV, Phuong NTK, Dinh KC. Long-Term Heavy Metal Retention by Mangroves and Effect on Its Growth: A Field Inventory and Scenario Simulation. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17239131. [PMID: 33297439 PMCID: PMC7729893 DOI: 10.3390/ijerph17239131] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Revised: 11/30/2020] [Accepted: 12/05/2020] [Indexed: 11/29/2022]
Abstract
The ability of mangroves in taking up and storing heavy metal (HM) helps in reducing HM pollution. However, HMs likewise adversely affect the growth of mangroves. We assess the effects of the long-term soil HMs enrichment on the growth of Rhizophora apiculata forest in the Can Gio Mangrove Forest (Southern Vietnam) in different environmental conditions of soil salinity, ground elevation, and tree density based on a novel set of measured data. These data were analyzed and were used to calibrate and validate for a tree growth model with influencing factors salinity, elevation, tree density, and heavy metals content. Three scenario simulations were performed to predict the mangrove dynamics under different levels of heavy metal pollution in combined environmental conditions of salinity and elevation. Simulation results show the decline of total forest biomass from 1,750,000 tons (baseline scenario with no HM pollution) down to 850,000 tons and 350,000 tons for the current HM pollution and double HM pollution scenarios, respectively. Both data analysis and simulations have shown that although mangroves can assist in reducing HM pollution, the quality and health of this ecosystem will be severely affected if the environment is excessively polluted. In addition, a data-and-model driven management tool is devised for the sustainable management of the mangrove environmental resources.
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Affiliation(s)
- Anh Nguyen
- Institute for Environment and Resources, Vietnam National University Ho Chi Minh City, 142 To Hien Thanh, District 10, Ho Chi Minh City 72506, Vietnam; (B.V.Q.L.); (K.C.D.)
- Correspondence: ; Tel.: +84-763-323-328
| | - Otto Richter
- Institute of Geoecology, Technical University of Braunschweig, 38106 Braunschweig, Germany;
| | - Bao V.Q. Le
- Institute for Environment and Resources, Vietnam National University Ho Chi Minh City, 142 To Hien Thanh, District 10, Ho Chi Minh City 72506, Vietnam; (B.V.Q.L.); (K.C.D.)
| | - Nguyen Thi Kim Phuong
- National Institute of Applied Mechanics and Informatics, Vietnam Academy of Science and Technology, 291 Dien Bien Phu, District 3, Ho Chi Minh City 722007, Vietnam;
| | - Kim Chi Dinh
- Institute for Environment and Resources, Vietnam National University Ho Chi Minh City, 142 To Hien Thanh, District 10, Ho Chi Minh City 72506, Vietnam; (B.V.Q.L.); (K.C.D.)
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21
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Calcium Plays a Double-Edged Role in Modulating Cadmium Uptake and Translocation in Rice. Int J Mol Sci 2020; 21:ijms21218058. [PMID: 33137932 PMCID: PMC7662230 DOI: 10.3390/ijms21218058] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2020] [Revised: 10/21/2020] [Accepted: 10/27/2020] [Indexed: 01/11/2023] Open
Abstract
Cadmium (Cd) contamination in soils poses great risks to both agricultural production and human health. Calcium (Ca) is an essential element playing a significant role in protecting plants against Cd toxicity. However, how Ca affects Cd uptake and translocation in rice is still not fully elucidated. In this study, the regulatory role of Ca in Cd uptake and upward translocation was investigated in rice at different growth stages. Our results showed that the supplement of 5 mM Ca significantly reduced Cd uptake by rice roots, because of their competition for Ca-permeable channels as an absorption site and Ca-induced downregulation of OsNRAMP1 and OsNRAMP5. However, Ca application facilitated the upward translocation of Cd by both upregulating OsHMA2 to induce xylem loading of Cd and downregulating OsHMA3 to reduce vacuolar sequestration of Cd. Such contrary results suggested a double-edged role of Ca in regulating root Cd uptake and root-to-shoot Cd translocation in rice. Although it increased Cd content in the aboveground vegetative tissues during the whole growth period, the addition of 5 mM Ca eventually decreased Cd content in rice grains at the ripening stage. All these results suggest that Ca-based amendments possess great potential for the production of low-Cd rice grains.
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22
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Zhu Y, Yang J, Wang L, Lin Z, Dai J, Wang R, Yu Y, Liu H, Rensing C, Feng R. Factors influencing the uptake and speciation transformation of antimony in the soil-plant system, and the redistribution and toxicity of antimony in plants. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 738:140232. [PMID: 32806353 DOI: 10.1016/j.scitotenv.2020.140232] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 06/10/2020] [Accepted: 06/13/2020] [Indexed: 06/11/2023]
Abstract
Antimony (Sb) is not an essential element for humans and plants although it can be used to treat some human diseases, such as schistosomiasis. Sb contamination has been documented in many regions around the world, particularly in China. The Sb contamination in the environment often stems from anthropogenic activities such as mining, smelting, and shooting. Within the latest decade, great progress has been made in research examining the physiochemical behavior of Sb in the environment, including 1) the extent of Sb pollution around the world particularly in China; 2) the mechanisms and factors influencing Sb migration in soils, especially the adsorption/desorption of Sb by minerals or organic materials; 3) the transformations influencing speciation catalyzed by soil microbes; 4) to a lesser extent, the toxicity of Sb to plants and soil animals. In this review, we highlighted the current knowledge with respect to 1) how soil physicochemical properties (including water regimes, pH, organic materials and Eh), and soil organisms will affect the soil bioavailability of Sb, and subsequently the uptake of Sb by plants; 2) the uptake pathway of antimonite and antimonate, the translocation of Sb from roots to shoots, and the redistribution and toxicity of Sb in plants.
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Affiliation(s)
- YanMing Zhu
- Institute of Environmental Microbiology, College of Resources and Environment, Fujian Agriculture & Forestry University, Fuzhou 350002, China
| | - JiGang Yang
- Institute of Environmental Microbiology, College of Resources and Environment, Fujian Agriculture & Forestry University, Fuzhou 350002, China
| | - LiZhen Wang
- Institute of Environmental Microbiology, College of Resources and Environment, Fujian Agriculture & Forestry University, Fuzhou 350002, China
| | - ZiTing Lin
- Institute of Environmental Microbiology, College of Resources and Environment, Fujian Agriculture & Forestry University, Fuzhou 350002, China
| | - JiaXin Dai
- Institute of Environmental Microbiology, College of Resources and Environment, Fujian Agriculture & Forestry University, Fuzhou 350002, China
| | - RenJie Wang
- Institute of Environmental Microbiology, College of Resources and Environment, Fujian Agriculture & Forestry University, Fuzhou 350002, China
| | - YanShuang Yu
- Institute of Environmental Microbiology, College of Resources and Environment, Fujian Agriculture & Forestry University, Fuzhou 350002, China
| | - Hong Liu
- Institute of Environmental Microbiology, College of Resources and Environment, Fujian Agriculture & Forestry University, Fuzhou 350002, China.
| | - Christopher Rensing
- Institute of Environmental Microbiology, College of Resources and Environment, Fujian Agriculture & Forestry University, Fuzhou 350002, China
| | - RenWei Feng
- Institute of Environmental Microbiology, College of Resources and Environment, Fujian Agriculture & Forestry University, Fuzhou 350002, China.
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23
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Wu Z, Zheng R, Liu G, Liu R, Wu S, Sun C. Calcium protects bacteria against cadmium stress via reducing nitric oxide production and increasing iron acquisition. Environ Microbiol 2020; 23:3541-3553. [PMID: 32939902 DOI: 10.1111/1462-2920.15237] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Accepted: 09/14/2020] [Indexed: 11/26/2022]
Abstract
Cadmium (Cd) is a common toxic heavy metal in the environment, and bacteria have evolved different strategies against Cd-toxicity. Here, we found that marine bacterium Bacillus sp. 98 could significantly alleviate Cd-toxicity by recruiting calcium (Ca) for reducing excessive intracellular nitric oxide (NO) and enhancing iron acquisition. To investigate the underlying mechanisms, mass spectrometry-based proteomic analysis was applied to Bacillus sp. 98 after treated with Cd supplemented with or without Ca. Compared with bacterial cells treated with Cd only, the proteomic results showed that the expression level of NO synthase was markedly down-regulated, while the expression levels of NO dioxygenase, which is responsible for converting NO to nitrate, and proteins associated with iron uptake were profoundly enhanced when Ca was supplemented. Consistently, bacterial intracellular NO amount was dramatically increased after Bacillus sp. 98 was treated with Cd, and reversed to a normal level when Ca or iron was supplemented. Notably, Ca also protected bacteria against stresses from other heavy metals including Cu, Cr, Mn, Ni and Zn, and this self-protection strategy was adopted as well in zebrafish, which encourages us to develop Ca-associated products against heavy metals toxicity in the future.
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Affiliation(s)
- Zuodong Wu
- College of Life Sciences, Qingdao University, Qingdao, China
| | - Rikuan Zheng
- CAS Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China.,Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China.,Centre of Ocean Mega-Science, Chinese Academy of Sciences, Qingdao, China
| | - Ge Liu
- CAS Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China.,Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China.,Centre of Ocean Mega-Science, Chinese Academy of Sciences, Qingdao, China
| | - Rui Liu
- CAS Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China.,Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China.,Centre of Ocean Mega-Science, Chinese Academy of Sciences, Qingdao, China
| | - Shimei Wu
- College of Life Sciences, Qingdao University, Qingdao, China
| | - Chaomin Sun
- CAS Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China.,Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China.,Centre of Ocean Mega-Science, Chinese Academy of Sciences, Qingdao, China
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24
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Valivand M, Amooaghaie R. Calcium signaling confers nickel tolerance in Cucurbita pepo L. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2020; 23:362-373. [PMID: 32940550 DOI: 10.1080/15226514.2020.1814992] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Excessive nickel (Ni) accumulation in edible parts of the plants has become a serious challenge for food security over the past few decades. Therefore, in this study, the role of calcium (Ca2+) signaling in imparting Ni tolerance was investigated in zucchini (Cucurbita pepo L. cv Courgette d'Italie). Exposure of zucchini seedlings to Hogland solution containing 0.28 mmol L-1 Ni(NO3)2 reduced plant growth, the content of chlorophyll and carotenoids and the relative water content (RWC) in leaves, increased Ni accumulation that was accompanied to depletion of the essential bivalent cations and induced oxidative stress and proline accumulation in both shoots and roots. Pretreatment with the nutrient solution containing 15 mmol L-1 calcium chloride (CaCl2), significantly improved zucchini growth and photosynthetic pigment contents and maintained RWC in leaves under both control and Ni stress conditions. Pretreatment with CaCl2 reduced Ni accumulation, modified cation homeostasis, increased the activities of peroxidase and catalase enzymes and lowered Ni-induced accumulation of hydrogen peroxide, malondialdehyde and proline in leaves and roots. Pre-exposure of root with Ca2+ chelator (ethylene glycol tetraacetic acid) and plasma membrane Ca2+ channel blocker (lanthanum chloride) impaired impact of Ca2+ on the aforementioned attributes. Outcomes of this study not only highlight the signaling role of Ca2+ in regulating defensive responses but also suggest an eco- friendly approach for reducing the Ni contamination in plants that ensure food safety.
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Affiliation(s)
- Maryam Valivand
- Plant Science Department, Science Faculty, Shahrekord University, Shahrekord, Iran
| | - Rayhaneh Amooaghaie
- Plant Science Department, Science Faculty, Shahrekord University, Shahrekord, Iran
- Biotechnology Research Institute, Shahrekord University, Shahrekord, Iran
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25
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Li J, He E, Romero-Freire A, Cao X, Zhao L, Qiu H. Coherent toxicity prediction framework for deciphering the joint effects of rare earth metals (La and Ce) under varied levels of calcium and NTA. CHEMOSPHERE 2020; 254:126905. [PMID: 32957298 DOI: 10.1016/j.chemosphere.2020.126905] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 04/24/2020] [Accepted: 04/25/2020] [Indexed: 06/11/2023]
Abstract
With the development of modern technologies, the exploitation and application of rare earth metals (REMs) have increased parallelly. Consequently, more REMs are entering into the environment and therefore there is a pressing need to assess their potential environmental hazards. Here, a standard toxicity test with wheat (Triticum aestivum) was conducted to investigate the single and mixture toxicity of La and Ce in solutions with different levels of calcium and nitrilotriacetic acid (NTA) and results were deciphered by different modeling approaches. Both La and Ce caused adverse effect to wheat, but the presence of Ca and NTA alleviated their toxicity. The obtained EC50 for [La] or [Ce] changed by more than 28-fold and by 4-fold, respectively, with the increase of Ca or NTA. The biotic ligand model (BLM) explained approximately 93% variation of single La or Ce toxicity. The binding constants obtained were 4.14, 6.67, and 6.59 for logKCaBL, logKLaBL, and logKCeBL respectively. The electrostatic toxicity model (ETM) was proved as effective as the BLM, with R2 = 0.93 for La and R2 = 0.92 for Ce. For La-Ce mixtures, parameters from single toxicity approaches were applied successfully to predict the mixture toxicity with concentration addition (CA) model based on the BLM or ETM theory (R2 = 0.92 and RMSE = 8.56; R2 = 0.90 and RMSE = 9.6, respectively). Thus, the results obtained in this study prove that both ETM and BLM theories are appropriate to predict single and mixture REMs toxicity, providing coherent and promising tools for the risk assessment of REM pollution.
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Affiliation(s)
- Jianqiu Li
- Key Laboratory of Original Agro-Environmental Pollution Prevention and Control, Ministry of Agriculture and Rural Affairs/Tianjin Key Laboratory of Agro-Environment and Agro-Product Safety, Agro-Environment Protection Institution, Ministry of Agriculture and Rural Affairs, Tianjin, 300191, China; School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Erkai He
- Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Sun Yat-sen University, Guangzhou, 510275, China
| | - Ana Romero-Freire
- Spanish National Research Council, Marine Research Institute (CSIC-IIM), Eduardo Cabello 6, 36208 Vigo, Spain
| | - Xinde Cao
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Ling Zhao
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Hao Qiu
- Key Laboratory of Original Agro-Environmental Pollution Prevention and Control, Ministry of Agriculture and Rural Affairs/Tianjin Key Laboratory of Agro-Environment and Agro-Product Safety, Agro-Environment Protection Institution, Ministry of Agriculture and Rural Affairs, Tianjin, 300191, China; School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China; Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Sun Yat-sen University, Guangzhou, 510275, China.
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26
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Zhu Y, Wu Q, Lv H, Chen W, Wang L, Shi S, Yang J, Zhao P, Li Y, Christopher R, Liu H, Feng R. Toxicity of different forms of antimony to rice plants: Effects on reactive oxidative species production, antioxidative systems, and uptake of essential elements. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 263:114544. [PMID: 32305804 DOI: 10.1016/j.envpol.2020.114544] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2019] [Revised: 03/09/2020] [Accepted: 04/04/2020] [Indexed: 06/11/2023]
Abstract
Antimonite [Sb(III)] and antimonate [Sb(V)] are known to have different toxicity to plants, but the corresponding mechanisms are not fully understood. This study was conducted to investigate reactive oxygen species (ROS), antioxidant systems, and levels of certain essential elements in response to exposure to Sb(III) and Sb(V). Results showed that exposure to Sb(V) caused oxidative stress in a rice plant (Yangdao No.6). Sb(III) was shown to be more toxic than Sb(V) as judged from a lower shoot biomass, a higher loss of essential elements, and higher production of superoxide anion free radicals (O2-). The toxicity of Sb(III) might partially be due to the disturbance of the O2- dismutation reaction, which resulted in root cell membrane damage under exposure to 20 mg L-1 Sb(III). Sb(V) stimulated the shoot fresh weight and the shoot uptake of many essential elements. Moreover, Sb(V) and Sb(III) both stimulated the accumulation of calcium in the shoots and roots, and calcium was found to significantly correlate with the concentrations of many essential elements and with some parameters correlated to antioxidant systems, suggesting a Ca-induced regulatory mechanism. The activity of glutathione peroxidase was significantly enhanced by Sb(V) and Sb(III), suggesting a role in scavenging hydrogen peroxide. Catalase was activated by exposure to 20 mg L-1 Sb(III) in the roots and by exposure to 20 mg L-1 Sb(V) both in the shoots and roots. However, peroxidase was activated by exposure to 5 mg L-1 Sb(III) in the shoots and by exposure to 5 mg L-1 Sb(V) in the roots. This study, for the first time, showed the differences between Sb(V) and Sb(III) toxicity when looking at the antioxidant response and essential element uptake.
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Affiliation(s)
- YanMing Zhu
- Institute of Environmental Microbiology, College of Resources and Environment, Fujian Agriculture & Forestry University, FuZhou, 350002, China
| | - QianHua Wu
- Institute of Agro-Environmental Protection, Ministry of Agriculture, Tianjin, 300191, China
| | - HaiQin Lv
- Institute of Agro-Environmental Protection, Ministry of Agriculture, Tianjin, 300191, China
| | - WenXiang Chen
- Institute of Environmental Microbiology, College of Resources and Environment, Fujian Agriculture & Forestry University, FuZhou, 350002, China
| | - LiZhen Wang
- Institute of Environmental Microbiology, College of Resources and Environment, Fujian Agriculture & Forestry University, FuZhou, 350002, China
| | - ShengJie Shi
- Agricultural College, Guangxi University, Nanning, China
| | - JiGang Yang
- Institute of Environmental Microbiology, College of Resources and Environment, Fujian Agriculture & Forestry University, FuZhou, 350002, China
| | - PingPing Zhao
- Institute of Environmental Microbiology, College of Resources and Environment, Fujian Agriculture & Forestry University, FuZhou, 350002, China
| | - YuanPing Li
- Institute of Environmental Microbiology, College of Resources and Environment, Fujian Agriculture & Forestry University, FuZhou, 350002, China
| | - Rensing Christopher
- Institute of Environmental Microbiology, College of Resources and Environment, Fujian Agriculture & Forestry University, FuZhou, 350002, China
| | - Hong Liu
- Institute of Environmental Microbiology, College of Resources and Environment, Fujian Agriculture & Forestry University, FuZhou, 350002, China
| | - RenWei Feng
- Institute of Environmental Microbiology, College of Resources and Environment, Fujian Agriculture & Forestry University, FuZhou, 350002, China.
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27
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Huang R, Dong M, Mao P, Zhuang P, Paz-Ferreiro J, Li Y, Li Y, Hu X, Netherway P, Li Z. Evaluation of phytoremediation potential of five Cd (hyper)accumulators in two Cd contaminated soils. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 721:137581. [PMID: 32163732 DOI: 10.1016/j.scitotenv.2020.137581] [Citation(s) in RCA: 67] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Revised: 02/20/2020] [Accepted: 02/24/2020] [Indexed: 06/10/2023]
Abstract
A phytoextraction experiment with five Cd hyperaccumulators (Amaranthus hypochondriacus, Celosia argentea, Solanum nigrum, Phytolacca acinosa and Sedum plumbizincicola) was conducted in two soils with different soil pH (5.93 and 7.43, respectively). Most accumulator plants grew better in the acidic soil, with 19.59-39.63% higher biomass than in the alkaline soil, except for S. plumbizincicola. The potential for a metal-contaminated soil to be cleaned up using phytoremediation is determined by the metal uptake capacity of hyperaccumulator, soil properties, and mutual fitness of plant-soil relationships. In the acidic soil, C. argentea and A. hypochondriacus extracted the highest amount of Cd (1.03 mg pot-1 and 0.92 mg pot-1, respectively). In the alkaline soil, S. plumbizincicola performed best, mainly as a result of high Cd accumulation in plant tissue (541.36 mg kg-1). Most plants achieved leaf Cd bioconcentration factor (BCF) of >10 in the acidic soil, compared to <4 in the alkaline soil. Soil Cd availability was chiefly responsible for such contrasting metal extraction capacity, with 5.02% fraction and 48.50% fraction of total Cd being available in the alkaline and acidic soil, respectively. In the alkaline soil, plants tended to increase rhizosphere soil available Cd mainly through excreting more low molecular weight organic acids, not through changing the soil pH. In the acidic soil, plants slightly decreased soil available Cd. Those species which have high Ca, Zn, Fe uptake capacity extract more Cd from soil, and a positive correlation was found between the concentrations of Cd and Ca, Zn, Fe in leaves. Soil available Ca2+, Mg2+, SO42-, Cl- did not play a key role in Cd uptake by plants. In summary, acidic soil was of higher potential to recover from Cd contamination by phytoextraction, while in the alkaline soil, S. plumbizincicola showed potential for Cd phytoextraction.
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Affiliation(s)
- Rong Huang
- Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Meiliang Dong
- Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Peng Mao
- Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China
| | - Ping Zhuang
- Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China
| | | | - Yongxing Li
- Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China
| | - Yingwen Li
- Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China
| | - Xiaoying Hu
- Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China
| | - Pacian Netherway
- School of Engineering, RMIT University, Melbourne 3000, Australia
| | - Zhian Li
- Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China; Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 511458B, China.
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28
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Zhang XP, Ma CX, Sun LR, Hao FS. Roles and mechanisms of Ca 2+ in regulating primary root growth of plants. PLANT SIGNALING & BEHAVIOR 2020; 15:1748283. [PMID: 32264747 PMCID: PMC7238873 DOI: 10.1080/15592324.2020.1748283] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Revised: 03/22/2020] [Accepted: 03/24/2020] [Indexed: 05/20/2023]
Abstract
Calcium (Ca2+) as a universal signal molecule plays pivotal roles in plant growth and development. It regulates root morphogenesis mainly through mediating phytohormone and stress signalings or affecting these signalings. In recent years, much progress has been made in understanding the roles of Ca2+ in primary root development. Here, we summarize recent advances in the functions and mechanisms of Ca2+ in modulating primary root growth in plants under normal and stressful conditions.
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Affiliation(s)
- Xiao Pan Zhang
- State Key Laboratory of Cotton Biology, Henan Key Laboratory of Plant Stress Biology, School of Life Sciences, Henan University, Kaifeng, China
| | - Cai Xia Ma
- State Key Laboratory of Cotton Biology, Henan Key Laboratory of Plant Stress Biology, School of Life Sciences, Henan University, Kaifeng, China
| | - Li Rong Sun
- State Key Laboratory of Cotton Biology, Henan Key Laboratory of Plant Stress Biology, School of Life Sciences, Henan University, Kaifeng, China
| | - Fu Shun Hao
- State Key Laboratory of Cotton Biology, Henan Key Laboratory of Plant Stress Biology, School of Life Sciences, Henan University, Kaifeng, China
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29
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Jurić S, Sopko Stracenski K, Król-Kilińska Ż, Žutić I, Uher SF, Đermić E, Topolovec-Pintarić S, Vinceković M. The enhancement of plant secondary metabolites content in Lactuca sativa L. by encapsulated bioactive agents. Sci Rep 2020; 10:3737. [PMID: 32111947 PMCID: PMC7048752 DOI: 10.1038/s41598-020-60690-3] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Accepted: 02/13/2020] [Indexed: 01/10/2023] Open
Abstract
Encapsulated bioactive agents applied to the Lactuca sativa L. present an innovative approach to stimulate the production of plant secondary metabolites increasing its nutritive value. Calcium and copper ions were encapsulated in biopolymeric microparticles (microspheres and microcapsules) either as single agents or in combination with biocontrol agents, Trichoderma viride spores, a fungal plant growth mediator. Both, calcium and copper ions are directly involved in the synthesis of plant secondary metabolites and alongside, Trichoderma viride can provide indirect stimulation and higher uptake of nutrients. All treatments with microparticles had a positive effect on the enhancement of plant secondary metabolites content in Lactuca sativa L. The highest increase of chlorophylls, antioxidant activity and phenolic was obtained by calcium-based microparticles in both, conventionally and hydroponically grown lettuces. Non-encapsulated fungus Trichoderma viride enhanced the synthesis of plant secondary metabolites only in hydroponics cultivation signifying the importance of its encapsulation. Encapsulation proved to be simple, sustainable and environmentally favorable for the production of lettuce with increased nutritional quality, which is lettuce fortified with important bioactive compounds.
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Affiliation(s)
- Slaven Jurić
- University of Zagreb, Faculty of Agriculture, Department of Chemistry, Zagreb, Croatia
| | | | - Żaneta Król-Kilińska
- Wrocław University of Environmental and Life Sciences, Faculty of Biotechnology and Food Sciences, Department of Functional Food Products Development, Wrocław, Poland
| | - Ivanka Žutić
- University of Zagreb, Faculty of Agriculture, Department of Vegetable Crops, Zagreb, Croatia
| | - Sanja Fabek Uher
- University of Zagreb, Faculty of Agriculture, Department of Vegetable Crops, Zagreb, Croatia
| | - Edyta Đermić
- University of Zagreb, Faculty of Agriculture, Department of Plant Pathology, Zagreb, Croatia
| | | | - Marko Vinceković
- University of Zagreb, Faculty of Agriculture, Department of Chemistry, Zagreb, Croatia.
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30
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Li J, Yu J, Du D, Liu J, Lu H, Yan C. Analysis of anatomical changes and cadmium distribution in Aegiceras corniculatum (L.) Blanco roots under cadmium stress. MARINE POLLUTION BULLETIN 2019; 149:110536. [PMID: 31543481 DOI: 10.1016/j.marpolbul.2019.110536] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Revised: 08/20/2019] [Accepted: 08/20/2019] [Indexed: 05/08/2023]
Abstract
Heavy metal stress changes the morphological and anatomical structure of plant organs. In this study, we determined the anatomical changes and Cd distribution in the roots of Aegiceras corniculatum (L.) Blanco (Black mangrove) under Cd stress. The results showed that Cd levels in A. corniculatum root tissues decreased in the following order: endodermis > pith > xylem > epidermis and exodermis > phloem > cortex. The endodermis secondary casparian strip replaces exodermis casparian strip and plays a role in the "retardation mechanism", which sort of compensates for the missing exodermis retardation effect. The xylem and pith both show high affinity for Cd and contain enriched Cd. This creates a low-Cd environment for phloem and protects the nutrient transport function of the vasculature against Cd toxicity. The present study provides new evidences suggesting that Cd regional enrichment and anatomical structure changes are an adaptive strategy of mangrove plants to HM tolerance.
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Affiliation(s)
- Jian Li
- Institute of Environment and Ecology, Institute of Environmental Health and Ecological Security, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Junyi Yu
- State Key Lab of Marine Environmental Science, Xiamen University, Xiamen 361102, China
| | - Daolin Du
- Institute of Environment and Ecology, Institute of Environmental Health and Ecological Security, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Jingchun Liu
- State Key Lab of Marine Environmental Science, Xiamen University, Xiamen 361102, China
| | - Haoliang Lu
- State Key Lab of Marine Environmental Science, Xiamen University, Xiamen 361102, China
| | - Chongling Yan
- State Key Lab of Marine Environmental Science, Xiamen University, Xiamen 361102, China.
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31
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Competitive Inhibitory Effect of Calcium Polypeptides on Cd Enrichment of Brassia campestris L. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2019; 16:ijerph16224472. [PMID: 31739390 PMCID: PMC6888063 DOI: 10.3390/ijerph16224472] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Revised: 11/09/2019] [Accepted: 11/11/2019] [Indexed: 02/06/2023]
Abstract
Most cadmium-polluted farmland and land surrounding mining areas are difficult to repair and control, seriously threatening the food safety of the crops planted in these regions. As an essential element for plant growth, calcium plays an important role in stress-resistance regulation. In this study, Brassia campestris L. was used as the experimental material and polluted soil with cadmium was used as the experimental soil sample, to explore the competition inhibition of calcium polypeptide application on the absorption of Cd2+ by Brassia campestris L. in the growth process, as well as the effect of calcium application on the growth. Results showed that the application of calcium polypeptides significantly promoted the growth of Brassia campestris L. Calcium polypeptides could be used as high-quality fertilizer, alleviating the effect of Cd2+ stress on the growth of Brassia campestris L., and promoting the absorption of K+, Ca2+, and other nutrients by Brassia campestris L. Under different calcium polypeptide application conditions, the effective state of Cd2+ in the soil showed less significant difference, indicating that the calcium polypeptide had weak or limited passivation effects on Cd2+. There was a significantly negative correlation between Cd concentration in Brassia campestris L. and calcium application (r = −0.99, p < 0.01) when calcium polypeptide was over-applied, which indicates that the inhibition effect of Cd2+ absorption on Brassia campestris L. is mainly through competitive inhibition rather than passivation. The results showed that calcium polypeptide has dual functions on the competitive inhibition of heavy metals and a good fertilizer effect, providing a new technology for in situ remediation of heavy-metal pollution, and a new approach for the treatment of cadmium-contaminated farmland and surrounding mining land.
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Kumar Meena M, Kumar Vishwakarma N, Tripathi V, Chattopadhyay D. CBL-interacting protein kinase 25 contributes to root meristem development. JOURNAL OF EXPERIMENTAL BOTANY 2019; 70:133-147. [PMID: 30239807 PMCID: PMC6305191 DOI: 10.1093/jxb/ery334] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Accepted: 09/14/2018] [Indexed: 05/08/2023]
Abstract
Co-ordination of auxin and cytokinin activities determines root meristem size during post-embryonic development. Calcineurin B-like proteins (CBLs) and their interacting protein kinases (CIPKs) constitute signaling modules that relay calcium signals. Here we report that CIPK25 is involved in regulating the root meristem size. Arabidopsis plants lacking CIPK25 expression displayed a short root phenotype and a slower root growth rate with fewer meristem cells. This phenotype was rescued by restoration of CIPK25 expression. CIPK25 interacted with CBL4 and -5, and displayed strong gene expression in the flower and root, except in the cell proliferation domain in the root apical meristem. Its expression in the root was positively and negatively regulated by auxin and cytokinin, respectively. The cipk25 T-DNA insertion line was compromised in auxin transport and auxin-responsive promoter activity. The cipk25 mutant line showed altered expression of auxin efflux carriers (PIN1 and PIN2) and an Aux/IAA family gene SHY2. Decreased PIN1 and PIN2 expression in the cipk25 mutant line was completely restored when combined with a SHY2 loss-of-function mutation, resulting in recovery of root growth. SHY2 and PIN1 expression was partially regulated by cytokinin even in the absence of CIPK25, suggesting a CIPK25-independent cytokinin signaling pathway(s). Our results revealed that CIPK25 plays an important role in the co-ordination of auxin and cytokinin signaling in root meristem development.
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Affiliation(s)
- Mukesh Kumar Meena
- National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi, India
| | | | - Vineeta Tripathi
- National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi, India
| | - Debasis Chattopadhyay
- National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi, India
- Correspondence:
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Singh R, Parihar P, Prasad SM. Simultaneous exposure of sulphur and calcium hinder As toxicity: Up-regulation of growth, mineral nutrients uptake and antioxidants system. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2018; 161:318-331. [PMID: 29890433 DOI: 10.1016/j.ecoenv.2018.05.060] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2018] [Revised: 05/01/2018] [Accepted: 05/23/2018] [Indexed: 05/02/2023]
Abstract
The current study was carried out to investigate the role of exogenous sulphur (K2SO4: S; 60 mg S kg-1 sand) and calcium (CaCl2: Ca; 250 mg Ca kg-1 sand) individually as well as in combination (S + Ca) in ameliorating the inhibitory effect of As (Na2HAsO4·7H2O: As1; 15 mg As kg-1 sand and As2; 30 mg As kg-1 sand) by analyzing biomass accumulation, mineral nutrients uptake, photosynthetic pigments content, redox status of the cell, enzymatic and non-enzymatic defense system in Brassica juncea L. seedlings. Biomass accumulation, uptake of mineral nutrients, photosynthetic pigments (chlorophyll a, b and carotenoids) content and the activity of proline dehydrogenase (ProDH) declined with increasing accumulation of As in root as well as leaves in As dose dependent manner. Contrary to this, exogenous application of S, Ca and S + Ca, markedly reduced the negative impact of As on above captioned traits except ProDH activity. On the other hand, ROS and their biomarkers (superoxide radical; O₂˙-, hydrogen peroxide; H2O2, malondialdehyde; MDA equivalents content and membrane damage; electrolyte leakage), activities of enzymatic (superoxide dismutase; SOD, peroxidase; POD, catalase; CAT and glutathione-S-transferase; GST) and non-enzymatic antioxidant i.e. proline (Pro) content and its enzyme pyrroline-5-carboxylate synthetase; P5CS activity were increased in root and leaves under As stress. While, exogenous application of S, Ca and S + Ca, further enhanced the activities of above mentioned enzymes and Pro content thereby causing considerable reduction in O₂˙-, H2O2, MDA equivalents content and electrolyte leakage. This study suggests that exogenous application of S and/or Ca efficiently (particularly S + Ca) lowered the negative impact of As on biomass accumulation in Brassica seedlings by improving the uptake of essential mineral nutrients', content of photosynthetic pigments, activities of enzymatic and content of non-enzymatic antioxidants.
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Affiliation(s)
- Rachana Singh
- Ranjan Plant Physiology and Biochemistry Laboratory, Department of Botany, University of Allahabad, Allahabad 211002, India.
| | - Parul Parihar
- Ranjan Plant Physiology and Biochemistry Laboratory, Department of Botany, University of Allahabad, Allahabad 211002, India.
| | - Sheo Mohan Prasad
- Ranjan Plant Physiology and Biochemistry Laboratory, Department of Botany, University of Allahabad, Allahabad 211002, India.
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Luo J, Cai L, Qi S, Wu J, Gu XS. Heavy metal remediation with Ficus microcarpa through transplantation and its environmental risks through field scale experiment. CHEMOSPHERE 2018; 193:244-250. [PMID: 29136571 DOI: 10.1016/j.chemosphere.2017.11.024] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Revised: 11/06/2017] [Accepted: 11/06/2017] [Indexed: 05/14/2023]
Abstract
The phytoremediation efficiency of various metals by Ficus microcarpa was evaluated through a real scale experiment in the present study. The root biomass production of the species varied significantly from 3.68 to 5.43 g because of the spatial heterogeneity of different metals. It would take 4-93 years to purify the excess Cd of the experimental site. Mercury was the most inflexible element which can barely be phytoremediated by F. microcarpa. After the species transplanted from the polluted soil to the clean site, Cd and Cu were transferred to the rhizosphere soil to different extent while the bulk soil was barely influenced. Relative to Cd and Cu, significantly fewer amounts of Pb and Hg were released. The highest concentrations of Cd, Cu, Hg and Pb in the clean soil were far below their corresponding safe thresholds for agricultural land after 3 months of the polluted plants were cultivated and metal concentrations of plant leaves were negligible, both indicated the low ecological risk of transplantation. Results from this study suggested a feasible disposal method for metal rich plants after phytoremediation.
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Affiliation(s)
- Jie Luo
- College of Resources and Environment, Yangtze University, 111 University Road, Wuhan, China; China University of Geosciences, 388 Lumo Road, Wuhan, 430074, China.
| | - Limei Cai
- College of Resources and Environment, Yangtze University, 111 University Road, Wuhan, China
| | - Shihua Qi
- China University of Geosciences, 388 Lumo Road, Wuhan, 430074, China
| | - Jian Wu
- China University of Geosciences, 388 Lumo Road, Wuhan, 430074, China
| | - Xiaowen Sophie Gu
- The University of Melbourne, Grattan Street, Parkville, Melbourne, VIC 3010 Victoria, Australia
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Li J, Yu J, Yan C, Du D, Liu J, Lu H. Distribution correlations of cadmium to calcium, phosphorus, sodium and chloridion in mangrove Aegiceras corniculatum root tissues. MARINE POLLUTION BULLETIN 2018; 126:179-183. [PMID: 29421085 DOI: 10.1016/j.marpolbul.2017.10.074] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2017] [Revised: 10/21/2017] [Accepted: 10/24/2017] [Indexed: 06/08/2023]
Abstract
Nutriment distributions might influence Cd distribution and Cd tolerance in mangrove plant roots. To demonstrate this, Aegiceras corniculatum was stressed by Cd, and the distributions of Cd, Ca, P, Na and Cl in plant roots were detected with the aid of SEM-EDX. It was found that endodermis, pith and xylem were the predominant tissues for retardation and regional enrichment of Cd. Na and Cl distributions suggest a critical role of salt resistance tissues on Cd tolerance in roots. P participated in Cd retardation and regional enrichment of endodermis and xylem. P, Na, Cl and Ca distribution had a high correlation to that of Cd in roots. The synergetic accumulation between Ca and Cd could be a crucial mechanism for Cd tolerance in A. corniculatum roots. In conclusion, the research of Cd and nutriment distributions in A. corniculatum roots deepens the understanding on Cd tolerance in mangrove plants.
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Affiliation(s)
- Jian Li
- Institute of Environment and Ecology, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China; Key Laboratory of Ministry of Education for Coastal and Wetland Ecosystems, Xiamen University, Xiamen 361102, China
| | - Junyi Yu
- Key Laboratory of Ministry of Education for Coastal and Wetland Ecosystems, Xiamen University, Xiamen 361102, China
| | - Chongling Yan
- Key Laboratory of Ministry of Education for Coastal and Wetland Ecosystems, Xiamen University, Xiamen 361102, China.
| | - Daolin Du
- Institute of Environment and Ecology, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China.
| | - Jingchun Liu
- Key Laboratory of Ministry of Education for Coastal and Wetland Ecosystems, Xiamen University, Xiamen 361102, China
| | - Haoliang Lu
- Key Laboratory of Ministry of Education for Coastal and Wetland Ecosystems, Xiamen University, Xiamen 361102, China
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Niu L, Yu J, Liao W, Yu J, Zhang M, Dawuda MM. Calcium and Calmodulin Are Involved in Nitric Oxide-Induced Adventitious Rooting of Cucumber under Simulated Osmotic Stress. FRONTIERS IN PLANT SCIENCE 2017; 8:1684. [PMID: 29021804 PMCID: PMC5623940 DOI: 10.3389/fpls.2017.01684] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2017] [Accepted: 09/13/2017] [Indexed: 05/07/2023]
Abstract
Osmotic stress is a major form of abiotic stress that adversely affects growth and development of plants and subsequently reduces yield and quality of crops. In this study, the effect of nitric oxide (NO) and calcium (Ca2+) on the process of adventitious rooting in cucumber (Cucumis sativus L.) under simulated osmotic stress was investigated. The results revealed that the effect of exogenous NO and Ca2+ in promoting the development of adventitious roots in cucumber seedlings under simulated osmotic stress was dose-dependent, with a maximal biological response at 10 μM NO donor nitroprusside (SNP) or 200 μM Ca2+. The application of Ca2+ chelators or channel inhibitors and calmodulin (CaM) antagonists significantly reversed NO-induced adventitious rooting, implying that endogenous Ca2+/CaM might be involved in NO-induced adventitious rooting under osmotic stress. Moreover, intracellular Ca amount was also increased by NO in cucumber hypocotyls during the development of adventitious roots under osmotic stress. This increase of endogenous Ca2+ was inhibited by NO specific scavenger 2-(4-carboxyphenyl) -4,4,5,5-tetramethylimidazoline-1-oxyl-3-oxide potassium salt (cPTIO), nitrate reductase inhibitors tungstate (Na2WO4) and sodium azide (NaN3). This gives an indication that Ca2+ might be a downstream signaling molecule in the adventitious root development by NO under osmotic condition. The results also show that NO or Ca2+ play a positive role in improving plant water status and photosynthetic system by increasing chlorophyll content and photochemical activity in leaves. Furthermore, NO and Ca2+ treatment might alleviate the negative effects of osmotic stress by decreasing membrane damage and reactive oxygen species (ROS) production by enhancing the activities of superoxide dismutase (SOD), catalase (CAT) and ascorbate peroxidase (APX). Therefore, Ca2+/CaM may act as a downstream signaling molecule in NO-induced development of adventitious root under simulated osmotic stress through improving the photosynthetic performance of leaves and activating antioxidative system in plants.
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Affiliation(s)
- Lijuan Niu
- College of Horticulture, Gansu Agricultural University, Lanzhou, China
| | - Jian Yu
- College of Horticulture, Gansu Agricultural University, Lanzhou, China
| | - Weibiao Liao
- College of Horticulture, Gansu Agricultural University, Lanzhou, China
| | - Jihua Yu
- College of Horticulture, Gansu Agricultural University, Lanzhou, China
| | - Meiling Zhang
- College of Science, Gansu Agricultural University, Lanzhou, China
| | - Mohammed M. Dawuda
- College of Horticulture, Gansu Agricultural University, Lanzhou, China
- Department of Horticulture, Faculty of Agriculture, University for Development Studies, Tamale, Ghana
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Huang D, Gong X, Liu Y, Zeng G, Lai C, Bashir H, Zhou L, Wang D, Xu P, Cheng M, Wan J. Effects of calcium at toxic concentrations of cadmium in plants. PLANTA 2017; 245:863-873. [PMID: 28204874 DOI: 10.1007/s00425-017-2664-1] [Citation(s) in RCA: 101] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2016] [Accepted: 02/09/2017] [Indexed: 06/06/2023]
Abstract
This review provides new insight that calcium plays important roles in plant growth, heavy metal accumulation and translocation, photosynthesis, oxidative damage and signal transduction under cadmium stress. Increasing heavy metal pollution problems have raised word-wide concerns. Cadmium (Cd), being a highly toxic metal, poses potential risks both to ecosystems and human health. Compared with conventional technologies, phytoremediation, being cost-efficient, highly stable and environment-friendly, is believed to be a promising green technology for Cd decontamination. However, Cd can be easily taken up by plants and may cause severe phytotoxicity to plants, thus limiting the efficiency of phytoremediation. Various researches are being done to investigate the effects of exogenous substances on the mitigation of Cd toxicity to plants. Calcium (Ca) is an essential plant macronutrient that involved in various plant physiological processes, such as plant growth and development, cell division, cytoplasmic streaming, photosynthesis and intracellular signaling transduction. Due to the chemical similarity between Ca and Cd, Ca may mediate Cd-induced physiological or metabolic changes in plants. Recent studies have shown that Ca could be used as an exogenous substance to protect plants against Cd stress by the alleviation of growth inhibition, regulation of metal uptake and translocation, improvement of photosynthesis, mitigation of oxidative damages and the control of signal transduction in the plants. The effects of Ca on toxic concentrations of Cd in plants are reviewed. This review also provides new insight that plants with enhanced Ca level have improved resistance to Cd stress.
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Affiliation(s)
- Danlian Huang
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, China.
- Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, 410082, China.
| | - Xiaomin Gong
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, China
- Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, 410082, China
| | - Yunguo Liu
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, China.
- Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, 410082, China.
| | - Guangming Zeng
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, China
- Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, 410082, China
| | - Cui Lai
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, China
- Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, 410082, China
| | - Hassan Bashir
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, China
- Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, 410082, China
| | - Lu Zhou
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, China
- Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, 410082, China
| | - Dafei Wang
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, China
- Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, 410082, China
| | - Piao Xu
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, China
- Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, 410082, China
| | - Min Cheng
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, China
- Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, 410082, China
| | - Jia Wan
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, China
- Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, 410082, China
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Guo Q, Meng L, Zhang YN, Mao PC, Tian XX, Li SS, Zhang L. Antioxidative systems, metal ion homeostasis and cadmium distribution in Iris lactea exposed to cadmium stress. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2017; 139:50-55. [PMID: 28110045 DOI: 10.1016/j.ecoenv.2016.12.013] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2016] [Revised: 12/08/2016] [Accepted: 12/08/2016] [Indexed: 06/06/2023]
Abstract
Iris lactea is a perennial halophyte and is tolerant to Cd. However, the mechanisms underlying this Cd tolerance are still poorly understood. In this study, morphological, physiological and biochemical responses of I. lactea to a 21 d exposure to different concentrations of Cd (0-150mgL-1) were investigated. I. lactea plants showed no toxicity symptoms except for a small reduction in growth at 100 and 150mgL-1 Cd, along with the enhancement of H2O2 and MDA content in comparison to the control. The activities of SOD and POD were significantly enhanced and Ca accumulated with increasing Cd concentrations. Moreover, most Cd was retained in roots and only a small amount was transported to the shoots with increasing external Cd concentrations. Cd content had a negative correlation with content of K, Fe, Zn, and Mn and a positive correlation with Mg content in shoots and roots, which had no influence on these contents of mineral nutrients in shoots and chlorophyll levels with the increase of Cd concentrations. The Cd translocation factors were always less than 1 and bioaccumulation factors ranged from 3.43 to 15.6 across all treatments, suggesting that I. lactea might be effectively used in phytostabilization of Cd contaminated soils. Overall, the findings suggest that I. lactea could reduce photoinhibition and oxidative damage and maintain metal ion homeostasis in plant tissue by limiting translocation of Cd from roots to shoots and enhancing induction of antioxidant enzyme activities, thereby improving its Cd tolerance.
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Affiliation(s)
- Qiang Guo
- Beijing Research and Development Center for Grass and Environment, Beijing Academy of Agriculture and Forestry Science, Beijing 100097, PR China
| | - Lin Meng
- Beijing Research and Development Center for Grass and Environment, Beijing Academy of Agriculture and Forestry Science, Beijing 100097, PR China.
| | - Ya-Nan Zhang
- Beijing Research and Development Center for Grass and Environment, Beijing Academy of Agriculture and Forestry Science, Beijing 100097, PR China
| | - Pei-Chun Mao
- Beijing Research and Development Center for Grass and Environment, Beijing Academy of Agriculture and Forestry Science, Beijing 100097, PR China
| | - Xiao-Xia Tian
- Beijing Research and Development Center for Grass and Environment, Beijing Academy of Agriculture and Forestry Science, Beijing 100097, PR China
| | - Shan-Shan Li
- Beijing Research and Development Center for Grass and Environment, Beijing Academy of Agriculture and Forestry Science, Beijing 100097, PR China
| | - Lin Zhang
- Beijing Research and Development Center for Grass and Environment, Beijing Academy of Agriculture and Forestry Science, Beijing 100097, PR China
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Zeng L, Zhu T, Gao Y, Wang Y, Ning C, Björn LO, Chen D, Li S. Effects of Ca addition on the uptake, translocation, and distribution of Cd in Arabidopsis thaliana. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2017; 139:228-237. [PMID: 28152404 DOI: 10.1016/j.ecoenv.2017.01.023] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2016] [Revised: 01/12/2017] [Accepted: 01/13/2017] [Indexed: 05/07/2023]
Abstract
Cadmium (Cd) pollution poses a risk to human health for its accumulation in soil and crops, but this can be alleviated by calcium (Ca) addition. However, its mechanism remains unclear yet. In this study, Arabidopsis thaliana was used to explore the alleviating effects of Ca on Cd toxicity and its specific function during uptake, upward-translocation, and distribution of Cd. Supplementing plants with 5mM CaCl2 alleviated the intoxication symptoms caused by 50μM CdCl2, such as smaller leaves, early bolting and root browning. Ca addition decreased uptake of Cd, possibly by reducing the physical adsorption of Cd since the root cell membrane was well maintained and lignin deposition was decreased as well, and by decreasing symplastic Cd transport. Expression of the genes involved (AtZIP2 and AtZIP4) was also decreased. In addition, Ca accumulated in the plant shoot to help facilitating the upward-translocation of Cd, with evidence of higher translocation factor and expression of genes that were involved in Ca transport (AtPCR1) and Cd xylem loading (AtHMA2 and AtHMA4). Dithizone-staining of Cd in leaves showed that in Cd+Ca-treated plants, Ca addition initially protected the leaf stomata by preventing Cd from entering guard cells, but with prolonged Cd treatment facilitated the Cd accumulation around trichomes and maybe its excretion. We conclude that Ca promotes the upward-translocation of Cd and changes its distribution in leaves. The results may have relevance for bioremediation.
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Affiliation(s)
- Lihua Zeng
- Key Laboratory of Ecology and Environmental Science in Guangdong Higher Education, School of Life Science, South China Normal University, Guangzhou 510631, China
| | - Ting Zhu
- Key Laboratory of Ecology and Environmental Science in Guangdong Higher Education, School of Life Science, South China Normal University, Guangzhou 510631, China
| | - Ya Gao
- Key Laboratory of Ecology and Environmental Science in Guangdong Higher Education, School of Life Science, South China Normal University, Guangzhou 510631, China
| | - Yutao Wang
- Key Laboratory of Ecology and Environmental Science in Guangdong Higher Education, School of Life Science, South China Normal University, Guangzhou 510631, China
| | - Chanjuan Ning
- Key Laboratory of Ecology and Environmental Science in Guangdong Higher Education, School of Life Science, South China Normal University, Guangzhou 510631, China
| | - Lars Olof Björn
- Key Laboratory of Ecology and Environmental Science in Guangdong Higher Education, School of Life Science, South China Normal University, Guangzhou 510631, China; Department of Biology, Molecular Cell Biology, Lund University, Lund 22467, Sweden
| | - Da Chen
- Cooperative Wildlife Research Laboratory and Department of Zoology, Southern Illinois University Carbondale, Carbondale, IL 62901, USA
| | - Shaoshan Li
- Key Laboratory of Ecology and Environmental Science in Guangdong Higher Education, School of Life Science, South China Normal University, Guangzhou 510631, China.
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Lu H, Li Z, Wu J, Shen Y, Li Y, Zou B, Tang Y, Zhuang P. Influences of calcium silicate on chemical forms and subcellular distribution of cadmium in Amaranthus hypochondriacus L. Sci Rep 2017; 7:40583. [PMID: 28074912 PMCID: PMC5225445 DOI: 10.1038/srep40583] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2016] [Accepted: 12/08/2016] [Indexed: 11/30/2022] Open
Abstract
A pot experiment was conducted to investigate the effects of calcium silicate (CS) on the subcellular distribution and chemical forms of cadmium (Cd) in grain amaranths (Amaranthus hypochondriacus L. Cv. 'K112') grown in a Cd contaminated soil. Results showed that the dry weight and the photosynthetic pigments contents in grain amaranths increased significantly with the increasing doses of CS treatments, with the highest value found for the treatment of CS3 (1.65 g/kg). Compared with the control, application of CS4 (3.31 g/kg) significantly reduced Cd concentrations in the roots, stems and leaves of grain amaranths by 68%, 87% and 89%, respectively. At subcellular level, CS treatment resulted in redistribution of Cd, higher percentages of Cd in the chloroplast and soluble fractions in leaves of grain amaranths were found, while lower proportions of Cd were located at the cell wall of the leaves. The application of CS enhanced the proportions of pectate and protein integrated forms of Cd and decreased the percentages of water soluble Cd potentially associated with toxicity in grain amaranths. Changes of free Cd ions into inactive forms sequestered in subcellular compartments may indicate an important mechanism of CS for alleviating Cd toxicity and accumulation in plants.
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Affiliation(s)
- Huanping Lu
- Guangdong Ecological Meteorology Center, Guangzhou 510080, PR China
- Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, PR China
| | - Zhian Li
- Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, PR China
| | - Jingtao Wu
- Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, PR China
| | - Yong Shen
- Department of Ecology, School of Life Sciences/State Key Laboratory of Biocontrol, Sun Yat-sen University, Guangzhou 510275, PR China
| | - Yingwen Li
- Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, PR China
| | - Bi Zou
- Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, PR China
| | - Yetao Tang
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510275, PR China
| | - Ping Zhuang
- Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, PR China
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Zhu R, Dong X, Hao W, Gao W, Zhang W, Xia S, Liu T, Shang Z. Heterotrimeric G Protein-Regulated Ca 2+ Influx and PIN2 Asymmetric Distribution Are Involved in Arabidopsis thaliana Roots' Avoidance Response to Extracellular ATP. FRONTIERS IN PLANT SCIENCE 2017; 8:1522. [PMID: 28919907 PMCID: PMC5585194 DOI: 10.3389/fpls.2017.01522] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2017] [Accepted: 08/18/2017] [Indexed: 05/04/2023]
Abstract
Extracellular ATP (eATP) has been reported to be involved in plant growth as a primary messenger in the apoplast. Here, roots of Arabidopsis thaliana seedlings growing in jointed medium bent upon contact with ATP-containing medium to keep away from eATP, showing a marked avoidance response. Roots responded similarly to ADP and bz-ATP but did not respond to AMP and GTP. The eATP avoidance response was reduced in loss-of-function mutants of heterotrimeric G protein α subunit (Gα) (gpa1-1 and gpa1-2) and enhanced in Gα-over-expression (OE) lines (wGα and cGα). Ethylenebis(oxyethylenenitrilo) tetraacetic acid (EGTA) and Gd3+ remarkably suppressed eATP-induced root bending. ATP-stimulated Ca2+ influx was impaired in Gα null mutants and increased in its OE lines. DR5-GFP and PIN2 were asymmetrically distributed in ATP-stimulated root tips, this effect was strongly suppressed by EGTA and diminished in Gα null mutants. In addition, some eATP-induced genes' expression was also impaired in Gα null mutants. Based on these results, we propose that heterotrimeric Gα-regulated Ca2+ influx and PIN2 distribution may be key signaling events in eATP sensing and avoidance response in Arabidopsis thaliana roots.
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Wilkins KA, Matthus E, Swarbreck SM, Davies JM. Calcium-Mediated Abiotic Stress Signaling in Roots. FRONTIERS IN PLANT SCIENCE 2016; 7:1296. [PMID: 27621742 PMCID: PMC5002411 DOI: 10.3389/fpls.2016.01296] [Citation(s) in RCA: 84] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2016] [Accepted: 08/12/2016] [Indexed: 05/20/2023]
Abstract
Roots are subjected to a range of abiotic stresses as they forage for water and nutrients. Cytosolic free calcium is a common second messenger in the signaling of abiotic stress. In addition, roots take up calcium both as a nutrient and to stimulate exocytosis in growth. For calcium to fulfill its multiple roles must require strict spatio-temporal regulation of its uptake and efflux across the plasma membrane, its buffering in the cytosol and its sequestration or release from internal stores. This prompts the question of how specificity of signaling output can be achieved against the background of calcium's other uses. Threats to agriculture such as salinity, water availability and hypoxia are signaled through calcium. Nutrient deficiency is also emerging as a stress that is signaled through cytosolic free calcium, with progress in potassium, nitrate and boron deficiency signaling now being made. Heavy metals have the capacity to trigger or modulate root calcium signaling depending on their dose and their capacity to catalyze production of hydroxyl radicals. Mechanical stress and cold stress can both trigger an increase in root cytosolic free calcium, with the possibility of membrane deformation playing a part in initiating the calcium signal. This review addresses progress in identifying the calcium transporting proteins (particularly channels such as annexins and cyclic nucleotide-gated channels) that effect stress-induced calcium increases in roots and explores links to reactive oxygen species, lipid signaling, and the unfolded protein response.
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Affiliation(s)
| | | | | | - Julia M. Davies
- Department of Plant Sciences, University of CambridgeCambridge, UK
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Kolbert Z. Implication of nitric oxide (NO) in excess element-induced morphogenic responses of the root system. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2016; 101:149-161. [PMID: 26895428 DOI: 10.1016/j.plaphy.2016.02.003] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2015] [Revised: 02/02/2016] [Accepted: 02/04/2016] [Indexed: 05/20/2023]
Abstract
Extremes of metal and non-metal elements in the soils create a stressful environment and plants exposed to sub-lethal abiotic stress conditions show a broad range of morphogenic responses designated as stress-induced morphogenic response (SIMR). Being the first plant organ directly contacting with elevated doses of elements, the root system shows remarkable symptoms and deserves special attention. In the signalling of root SIMR, the involvement of phytohormones (especially auxin) and reactive oxygen species (ROS) has been earlier suggested. Emerging evidence supports that nitric oxide (NO) and related molecules (reactive nitrogen species, RNS) are integral signals of root system development, and they are active components of heavy metal-induced stress responses as well. Based on these, the main scope of this review is to demonstrate the contribution of NO/RNS to the emergence of excess element-induced root morphogenic responses. The SIMR-like root system of lead-treated Arabidopsis thaliana contained elevated NO levels compared to the root not showing SIMR. In NO-deficient nia1nia2 plants, the degree of selenium-induced root SIMR was, in some characteristics altered compared to the wild-type. Moreover, among the molecular elements of SIMR several potential candidates of NO-dependent S-nitrosylation or tyrosine nitration have been found using computational prediction. The demonstrated literature data together with own experimental results strongly outline that NO/RNS are regulating signals in the development of root SIMR in case of excess metal and non-metal elements. This also reveals a new role of NO in acclimation emphasizing its importance in defence mechanisms against abiotic stresses.
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Affiliation(s)
- Zsuzsanna Kolbert
- Department of Plant Biology, Faculty of Science and Informatics, University of Szeged, Hungary.
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Niu L, Liao W. Hydrogen Peroxide Signaling in Plant Development and Abiotic Responses: Crosstalk with Nitric Oxide and Calcium. FRONTIERS IN PLANT SCIENCE 2016; 7:230. [PMID: 26973673 PMCID: PMC4777889 DOI: 10.3389/fpls.2016.00230] [Citation(s) in RCA: 145] [Impact Index Per Article: 18.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2015] [Accepted: 02/11/2016] [Indexed: 05/02/2023]
Abstract
Hydrogen peroxide (H2O2), as a reactive oxygen species, is widely generated in many biological systems. It has been considered as an important signaling molecule that mediates various physiological and biochemical processes in plants. Normal metabolism in plant cells results in H2O2 generation, from a variety of sources. Also, it is now clear that nitric oxide (NO) and calcium (Ca(2+)) function as signaling molecules in plants. Both H2O2 and NO are involved in plant development and abiotic responses. A wide range of evidences suggest that NO could be generated under similar stress conditions and with similar kinetics as H2O2. The interplay between H2O2 and NO has important functional implications to modulate transduction processes in plants. Moreover, close interaction also exists between H2O2 and Ca(2+) in response to development and abiotic stresses in plants. Cellular responses to H2O2 and Ca(2+) signaling systems are complex. There is quite a bit of interaction between H2O2 and Ca(2+) signaling in responses to several stimuli. This review aims to introduce these evidences in our understanding of the crosstalk among H2O2, NO, and Ca(2+) signaling which regulates plant growth and development, and other cellular and physiological responses to abiotic stresses.
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Affiliation(s)
| | - Weibiao Liao
- Department of Ornamental Horticulture, College of Horticulture, Gansu Agricultural UniversityLanzhou, China
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Ahmad P, Abdel Latef AA, Abd_Allah EF, Hashem A, Sarwat M, Anjum NA, Gucel S. Calcium and Potassium Supplementation Enhanced Growth, Osmolyte Secondary Metabolite Production, and Enzymatic Antioxidant Machinery in Cadmium-Exposed Chickpea (Cicer arietinum L.). FRONTIERS IN PLANT SCIENCE 2016; 7:513. [PMID: 27200003 PMCID: PMC4847423 DOI: 10.3389/fpls.2016.00513] [Citation(s) in RCA: 109] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2016] [Accepted: 04/01/2016] [Indexed: 05/18/2023]
Abstract
This work examined the role of exogenously applied calcium (Ca; 50 mM) and potassium (K; 10 mM) (alone and in combination) in alleviating the negative effects of cadmium (Cd; 200 μM) on growth, biochemical attributes, secondary metabolites and yield of chickpea (Cicer arietinum L.). Cd stress significantly decreased the length and weight (fresh and dry) of shoot and root and yield attributes in terms of number of pods and seed yield (vs. control). Exhibition of decreases in chlorophyll (Chl) a, Chl b, and total Chl was also observed with Cd-exposure when compared to control. However, Cd-exposure led to an increase in the content of carotenoids. In contrast, the exogenous application of Ca and K individually as well as in combination minimized the extent of Cd-impact on previous traits. C. arietinum seedlings subjected to Cd treatment exhibited increased contents of organic solute (proline, Pro) and total protein; whereas, Ca and K-supplementation further enhanced the Pro and total protein content. Additionally, compared to control, Cd-exposure also caused elevation in the contents of oxidative stress markers (hydrogen peroxidase, H2O2; malondialdehyde, MDA) and in the activity of antioxidant defense enzymes (superoxide dismutase, SOD; catalase, CAT; ascorbate peroxidase, APX; glutathione reductase, GR). Ca, K, and Ca + K supplementation caused further enhancements in the activity of these enzymes but significantly decreased contents of H2O2 and MDA, also that of Cd accumulation in shoot and root. The contents of total phenol, flavonoid and mineral elements (S, Mn, Mg, Ca and K) that were also suppressed in Cd stressed plants in both shoot and root were restored to appreciable levels with Ca- and K-supplementation. However, the combination of Ca + K supplementation was more effective in bringing the positive response as compared to individual effect of Ca and K on Cd-exposed C. arietinum. Overall, this investigation suggests that application of Ca and/or K can efficiently minimize Cd-toxicity and eventually improve health and yield in C. arietinum by the cumulative outcome of the enhanced contents of organic solute, secondary metabolites, mineral elements, and activity of antioxidant defense enzymes.
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Affiliation(s)
- Parvaiz Ahmad
- Department of Botany and Microbiology, Faculty of Science, King Saud UniversityRiyadh, Saudi Arabia
- Department of Botany, Sri Pratap CollegeSrinagar, India
- *Correspondence: Parvaiz Ahmad
| | - Arafat A. Abdel Latef
- Botany Department, Faculty of Science, South Valley UniversityQena, Egypt
- Biology Department, College of Applied Medical Sciences, Taif UniversityTaif, Saudi Arabia
| | - Elsayed F. Abd_Allah
- Department of Plant Production, Faculty of Food and Agricultural Sciences, King Saud UniversityRiyadh, Saudi Arabia
| | - Abeer Hashem
- Department of Botany and Microbiology, Faculty of Science, King Saud UniversityRiyadh, Saudi Arabia
- Mycology and Plant Disease Survey Department, Agriculture Research Center, Plant Pathology Research InstituteGiza, Egypt
| | - Maryam Sarwat
- Pharmaceutical Biotechnology, Amity Institute of Pharmacy, Amity UniversityUttar Pradesh, India
| | - Naser A. Anjum
- Department of Chemistry, Centre for Environmental and Marine Studies, University of AveiroAveiro, Portugal
| | - Salih Gucel
- Centre for Environmental Research, Near East UniversityLefkosa, Cyprus
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Yue R, Lu C, Qi J, Han X, Yan S, Guo S, Liu L, Fu X, Chen N, Yin H, Chi H, Tie S. Transcriptome Analysis of Cadmium-Treated Roots in Maize (Zea mays L.). FRONTIERS IN PLANT SCIENCE 2016; 7:1298. [PMID: 27630647 PMCID: PMC5006096 DOI: 10.3389/fpls.2016.01298] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2016] [Accepted: 08/15/2016] [Indexed: 05/05/2023]
Abstract
Cadmium (Cd) is a heavy metal and is highly toxic to all plant species. However, the underlying molecular mechanism controlling the effects of auxin on the Cd stress response in maize is largely unknown. In this study, the transcriptome produced by maize 'Zheng 58' root responses to Cd stress was sequenced using Illumina sequencing technology. In our study, six RNA-seq libraries yielded a total of 244 million clean short reads and 30.37 Gb of sequence data. A total of 6342 differentially expressed genes (DEGs) were grouped into 908 Gene Ontology (GO) categories and 198 Kyoto Encyclopedia of Genes and Genomes terms. GO term enrichment analysis indicated that various auxin signaling pathway-related GO terms were significantly enriched in DEGs. Comparison of the transcript abundances for auxin biosynthesis, transport, and downstream response genes revealed a universal expression response under Cd treatment. Furthermore, our data showed that free indole-3-acetic acid (IAA) levels were significantly reduced; but IAA oxidase activity was up-regulated after Cd treatment in maize roots. The analysis of Cd activity in maize roots under different Cd and auxin conditions confirmed that auxin affected Cd accumulation in maize seedlings. These results will improve our understanding of the complex molecular mechanisms underlying the response to Cd stress in maize roots.
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Affiliation(s)
- Runqing Yue
- Food Crops Research Institute, Henan Academy of Agricultural SciencesZhengzhou, China
- The Henan Provincial Key Laboratory of Maize BiologyZhengzhou, China
| | - Caixia Lu
- Food Crops Research Institute, Henan Academy of Agricultural SciencesZhengzhou, China
- The Henan Provincial Key Laboratory of Maize BiologyZhengzhou, China
| | - Jianshuang Qi
- Food Crops Research Institute, Henan Academy of Agricultural SciencesZhengzhou, China
- The Henan Provincial Key Laboratory of Maize BiologyZhengzhou, China
| | - Xiaohua Han
- Food Crops Research Institute, Henan Academy of Agricultural SciencesZhengzhou, China
- The Henan Provincial Key Laboratory of Maize BiologyZhengzhou, China
| | - Shufeng Yan
- Food Crops Research Institute, Henan Academy of Agricultural SciencesZhengzhou, China
- The Henan Provincial Key Laboratory of Maize BiologyZhengzhou, China
| | - Shulei Guo
- Food Crops Research Institute, Henan Academy of Agricultural SciencesZhengzhou, China
- The Henan Provincial Key Laboratory of Maize BiologyZhengzhou, China
| | - Lu Liu
- Food Crops Research Institute, Henan Academy of Agricultural SciencesZhengzhou, China
- The Henan Provincial Key Laboratory of Maize BiologyZhengzhou, China
| | - Xiaolei Fu
- Food Crops Research Institute, Henan Academy of Agricultural SciencesZhengzhou, China
- The Henan Provincial Key Laboratory of Maize BiologyZhengzhou, China
| | - Nana Chen
- Food Crops Research Institute, Henan Academy of Agricultural SciencesZhengzhou, China
- The Henan Provincial Key Laboratory of Maize BiologyZhengzhou, China
| | - Haiyan Yin
- Food Crops Research Institute, Henan Academy of Agricultural SciencesZhengzhou, China
- The Henan Provincial Key Laboratory of Maize BiologyZhengzhou, China
| | - Haifeng Chi
- Food Crops Research Institute, Henan Academy of Agricultural SciencesZhengzhou, China
- The Henan Provincial Key Laboratory of Maize BiologyZhengzhou, China
| | - Shuanggui Tie
- Food Crops Research Institute, Henan Academy of Agricultural SciencesZhengzhou, China
- The Henan Provincial Key Laboratory of Maize BiologyZhengzhou, China
- *Correspondence: Shuanggui Tie,
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