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Wang S, Dai H, Ji D, Cui S, Jiang C, Skuza L, Li L, Grzebelus D, Wei S. Influencing Factors of Bidens pilosa L. Hyperaccumulating Cadmium Explored by the Real-Time Uptake of Cd 2+ Influx around Root Apexes under Different Exogenous Nutrient Ion Levels. TOXICS 2023; 11:227. [PMID: 36976992 PMCID: PMC10054121 DOI: 10.3390/toxics11030227] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 02/22/2023] [Accepted: 02/23/2023] [Indexed: 06/18/2023]
Abstract
Though Bidens pilosa L. has been confirmed to be a potential Cd hyperaccumulator, the accumulation mechanism is not yet clear. The dynamic and real-time uptake of Cd2+ influx by B. pilosa root apexes was determined using non-invasive micro-test technology (NMT), which partly explored the influencing factors of the Cd hyperaccumulation mechanism under the conditions of different exogenous nutrient ions. The results indicated that Cd2+ influxes at 300 μm around the root tips decreased under Cd treatments with 16 mM Ca2+, 8 mM Mg2+, 0.5 mM Fe2+, 8 mM SO42- or 18 mM K+ compared to single Cd treatments. The Cd treatments with a high concentration of nutrient ions showed an antagonistic effect on Cd2+ uptake. However, Cd treatments with 1 mM Ca2+, 0.5 mM Mg2+, 0.5 mM SO42- or 2 mM K+ had no effect on the Cd2+ influxes as compared with single Cd treatments. It is worth noting that the Cd treatment with 0.05 mM Fe2+ markedly increased Cd2+ influxes. The addition of 0.05 mM Fe2+ exhibited a synergistic effect on Cd uptake, which could be low concentration Fe2+ rarely involved in blocking Cd2+ influx and often forming an oxide membrane on the root surface to help the Cd uptake by B. pilosa. The results also showed that Cd treatments with high concentration of nutrient ions significantly increased the concentrations of chlorophyll and carotenoid in leaves and the root vigor of B. pilosa relative to single Cd treatments. Our research provides novel perspectives with respect to Cd uptake dynamic characteristics by B. pilosa roots under different exogenous nutrient ion levels, and shows that the addition of 0.05 mM Fe2+ could promote the phytoremediation efficiency for B. pilosa.
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Affiliation(s)
- Siqi Wang
- Academy of Environmental and Chemical Engineering, Shenyang Ligong University, Shenyang 110159, China
| | - Huiping Dai
- Shaanxi Province Key Laboratory of Bio-Resources, Qinling-Bashan Mountains Bioresources Comprehensive Development C.I.C, State Key Laboratory of Biological Resources and Ecological Environment Jointly Built by Qinba Province and Ministry, College of Biological Science & Engineering, Shaanxi University of Technology, Hanzhong 723001, China
| | - Dandan Ji
- Key Laboratory of Pollution Ecology and Environment Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China
| | - Shuang Cui
- Academy of Environmental and Chemical Engineering, Shenyang Ligong University, Shenyang 110159, China
| | - Chengzhi Jiang
- Academy of Environmental and Chemical Engineering, Shenyang Ligong University, Shenyang 110159, China
| | - Lidia Skuza
- Centre for Molecular Biology and Biotechnology, Institute of Biology, University of Szczecin, 71-415 Szczecin, Poland
| | - Lianzhen Li
- College of Environmental Sciences and Engineering, Qingdao University, Qingdao 266071, China
| | - Dariusz Grzebelus
- Department of Plant Biology and Biotechnology, Faculty of Biotechnology and Horticulture, University of Agriculture in Krakow, 31-120 Krakow, Poland
| | - Shuhe Wei
- Key Laboratory of Pollution Ecology and Environment Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China
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Wang S, Dai H, Cui S, Ji D, Skuza L, Li L, Grzebelus D, Wei S. The effects of salinity and pH variation on hyperaccumulator Bidens pilosa L. accumulating cadmium with dynamic and real-time uptake of Cd 2+ influx around its root apexes. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:41435-41444. [PMID: 36631619 DOI: 10.1007/s11356-023-25213-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Accepted: 01/05/2023] [Indexed: 01/13/2023]
Abstract
Bidens pilosa L. has been confirmed to be a potential Cd hyperaccumulator by some researchers, but the dynamic and real-time uptake of Cd2+ influx by B. pilosa root apexes was a conundrum up to now. The aim of our study was to investigate the effects of salinity and pH variations on the characteristics of Cd2+ influx around the root apexes of B. pilosa. The tested seedlings of B. pilosa were obtained by sand culture experiments in a greenhouse after 1 month from germination, and the Cd2+ influxes from the root apex of B. pilosa under Cd treatments with different salinity and pH levels were determined with application of non-invasive micro-test technology (NMT). The results showed that Cd2+ influxes at 300 μm from the root tips decreased under Cd treatments with 5 mM and 10 mM NaCl, as compared to Cd stress alone. However, Cd treatments with 2.5 mM NaCl had little effect on the net Cd2+ influxes, as compared to Cd treatments alone. Importantly, Cd treatments at pH = 4.0 markedly increased Cd2+ influxes in roots, and Cd treatment at pH = 7.0 had no significant effect on the net Cd2+ influxes compared to Cd treatments at pH = 5.5. Results also showed that Cd treatments with 10 mM NaCl significantly decreased concentrations of chlorophyll (Chl) a and b in leaves and root vigor of B. pilosa relative to Cd treatments alone, while there were no significant differences between Cd treatments with 2.5 mM NaCl and Cd treatments alone. But root vigor was inhibited significantly under Cd treatments with 5 mM and 10 mM NaCl. A significant increase of root vigor was observed in Cd treatments at pH = 4.0, as compared to pH = 5.5. The Cd treatments with high and medium concentrations of NaCl inhibited the uptake of Cd by B. pilosa roots and affected the Chl and root vigor further. But the Cd treatments at pH = 4.0 could promote the Cd uptake and root vigor. Our results revealed the uptake mechanisms of B. pilosa as a potential phytoremediator under different salinity and pH levels combined with Cd contamination and provided a new idea for screening ideal hyperaccumulator and constructing evaluation system.
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Affiliation(s)
- Siqi Wang
- Academy of Environmental and Chemical Engineering, Shenyang Ligong University, Shenyang, 110159, Liaoning, China
- Key Laboratory of Pollution Ecology and Environment Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, 110016, China
| | - Huiping Dai
- College of Biological Science & Engineering, Shaanxi Province Key Laboratory of Bio-Resources, Qinling-Bashan Mountains Bioresources Comprehensive Development C.I.C, State Key Laboratory of Biological Resources and Ecological Environment Jointly Built By Qinba Province and Ministry, Shaanxi University of Technology, Hanzhong, 723001, China
| | - Shuang Cui
- Academy of Environmental and Chemical Engineering, Shenyang Ligong University, Shenyang, 110159, Liaoning, China
| | - Dandan Ji
- Key Laboratory of Pollution Ecology and Environment Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, 110016, China
| | - Lidia Skuza
- Institute of Biology, Centre for Molecular Biology and Biotechnology, University of Szczecin, 71-415, Szczecin, Poland
| | - Lianzhen Li
- Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, 264003, China
| | - Dariusz Grzebelus
- Department of Plant Biology and Biotechnology, Faculty of Biotechnology and Horticulture, University of Agriculture in Krakow, 31-120, Krakow, Poland
| | - Shuhe Wei
- Key Laboratory of Pollution Ecology and Environment Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, 110016, China.
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Ismail MA, Amin MA, Eid AM, Hassan SED, Mahgoub HAM, Lashin I, Abdelwahab AT, Azab E, Gobouri AA, Elkelish A, Fouda A. Comparative Study between Exogenously Applied Plant Growth Hormones versus Metabolites of Microbial Endophytes as Plant Growth-Promoting for Phaseolus vulgaris L. Cells 2021; 10:cells10051059. [PMID: 33946942 PMCID: PMC8146795 DOI: 10.3390/cells10051059] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Revised: 04/23/2021] [Accepted: 04/26/2021] [Indexed: 12/19/2022] Open
Abstract
Microbial endophytes organize symbiotic relationships with the host plant, and their excretions contain diverse plant beneficial matter such as phytohormones and bioactive compounds. In the present investigation, six bacterial and four fungal strains were isolated from the common bean (Phaseolus vulgaris L.) root plant, identified using molecular techniques, and their growth-promoting properties were reviewed. All microbial isolates showed varying activities to produce indole-3-acetic acid (IAA) and different hydrolytic enzymes such as amylase, cellulase, protease, pectinase, and xylanase. Six bacterial endophytic isolates displayed phosphate-solubilizing capacity and ammonia production. We conducted a field experiment to evaluate the promotion activity of the metabolites of the most potent endophytic bacterial (Bacillus thuringiensis PB2 and Brevibacillus agri PB5) and fungal (Alternaria sorghi PF2 and, Penicillium commune PF3) strains in comparison to two exogenously applied hormone, IAA, and benzyl adenine (BA), on the growth and biochemical characteristics of the P. vulgaris L. Interestingly, our investigations showed that bacterial and fungal endophytic metabolites surpassed the exogenously applied hormones in increasing the plant biomass, photosynthetic pigments, carbohydrate and protein contents, antioxidant enzyme activity, endogenous hormones and yield traits. Our findings illustrate that the endophyte Brevibacillus agri (PB5) provides high potential as a stimulator for the growth and productivity of common bean plants.
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Affiliation(s)
- Mohamed A. Ismail
- Department of Botany and Microbiology, Faculty of Science, Al-Azhar University, Nasr City, Cairo 11884, Egypt; (M.A.I.); (M.A.A.); (A.M.E.); or (H.A.M.M.); (I.L.); (A.T.A.)
| | - Mohamed A. Amin
- Department of Botany and Microbiology, Faculty of Science, Al-Azhar University, Nasr City, Cairo 11884, Egypt; (M.A.I.); (M.A.A.); (A.M.E.); or (H.A.M.M.); (I.L.); (A.T.A.)
| | - Ahmed M. Eid
- Department of Botany and Microbiology, Faculty of Science, Al-Azhar University, Nasr City, Cairo 11884, Egypt; (M.A.I.); (M.A.A.); (A.M.E.); or (H.A.M.M.); (I.L.); (A.T.A.)
| | - Saad El-Din Hassan
- Department of Botany and Microbiology, Faculty of Science, Al-Azhar University, Nasr City, Cairo 11884, Egypt; (M.A.I.); (M.A.A.); (A.M.E.); or (H.A.M.M.); (I.L.); (A.T.A.)
- Correspondence: (S.E.-D.H.); (A.F.); Tel.: +20-102-3884804 (S.E.-D.H.); +20-111-3351244 (A.F.)
| | - Hany A. M. Mahgoub
- Department of Botany and Microbiology, Faculty of Science, Al-Azhar University, Nasr City, Cairo 11884, Egypt; (M.A.I.); (M.A.A.); (A.M.E.); or (H.A.M.M.); (I.L.); (A.T.A.)
| | - Islam Lashin
- Department of Botany and Microbiology, Faculty of Science, Al-Azhar University, Nasr City, Cairo 11884, Egypt; (M.A.I.); (M.A.A.); (A.M.E.); or (H.A.M.M.); (I.L.); (A.T.A.)
- Department of Biology, Faculty of Science and Arts, Al Mandaq, Albaha University, Al-Baha 1988, Saudi Arabia
| | - Abdelrhman T. Abdelwahab
- Department of Botany and Microbiology, Faculty of Science, Al-Azhar University, Nasr City, Cairo 11884, Egypt; (M.A.I.); (M.A.A.); (A.M.E.); or (H.A.M.M.); (I.L.); (A.T.A.)
- Department of Botany Science, Faculty of Science, Northern Border University, Arar 73211, Saudi Arabia
| | - Ehab Azab
- Department of Nutrition and Food Science, College of Science, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia;
| | - Adil A. Gobouri
- Department of Chemistry, College of Science, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia;
| | - Amr Elkelish
- Botany and Microbiology Department, Faculty of Science, Suez Canal University, Ismailia 41511, Egypt; or
- Department of Plant Physiology, Matthias Schleiden Institute of Genetics, Bioinformatics and Molecular Botany, Friedrich-Schiller-University Jena, 07743 Jena, Germany
| | - Amr Fouda
- Department of Botany and Microbiology, Faculty of Science, Al-Azhar University, Nasr City, Cairo 11884, Egypt; (M.A.I.); (M.A.A.); (A.M.E.); or (H.A.M.M.); (I.L.); (A.T.A.)
- Correspondence: (S.E.-D.H.); (A.F.); Tel.: +20-102-3884804 (S.E.-D.H.); +20-111-3351244 (A.F.)
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Xu Z, Lu Z, Zhang L, Fan H, Wang Y, Li J, Lin Y, Liu H, Guo S, Xu M, Wang J. Red mud based passivator reduced Cd accumulation in edible amaranth by influencing root organic matter metabolism and soil aggregate distribution. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 275:116543. [PMID: 33556735 DOI: 10.1016/j.envpol.2021.116543] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 01/06/2021] [Accepted: 01/16/2021] [Indexed: 06/12/2023]
Abstract
Red mud was a highly alkaline hazardous waste, and their resource utilization was a research hotspot. In this study, influencing mechanisms of red mud based passivator on the transformation of Cd fraction in acidic Cd-polluted soil, photosynthetic property, and Cd accumulation in edible amaranth were investigated based on the evaluation of Cd adsorption capacity, root metabolic response, and soil aggregate distribution. Results showed that red mud exhibited good Cd adsorption capacities at about 35 °C and pH 9 in an aqueous solution, and the adsorption behavior of red mud on Cd in rhizosphere soil solution was considered to have some similarity. In the soil-pot trial, red mud application significantly facilitated edible amaranth growth by enhancing the maximum photochemical efficiency and light energy absorption by per unit leaf area by activating more reaction centers. The main mechanisms of rhizosphere soil Cd immobilisation by red mud application included: i) the reduction of mobilized Cd caused by the increasing negative surface charge of soil and precipitation of Cd hydroxides and carbonates at high pH; ii) the increase of organics-Cd complexes caused by the increasing -OH and -COOH amounts adsorbed on the surface of rhizosphere soil after red mud application; and iii) the decrease of available Cd content in soil aggregates caused by the increasing organic matters after red mud application. This study would provide the basis for the safe utilization of red mud remediating acidic Cd-polluted soil.
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Affiliation(s)
- Zhimin Xu
- Engineering and Technology Research Center for Agricultural Land Pollution Prevention and Control of Guangdong Higher Education Institutes, College of Resources and Environment, Zhongkai University of Agriculture and Engineering, Guangzhou, 510225, China; Innovative Institute of Animal Healthy Breeding, Zhongkai University of Agriculture and Engineering, Guangzhou, 510225, China
| | - Ziyan Lu
- Engineering and Technology Research Center for Agricultural Land Pollution Prevention and Control of Guangdong Higher Education Institutes, College of Resources and Environment, Zhongkai University of Agriculture and Engineering, Guangzhou, 510225, China
| | - Liangshi Zhang
- Engineering and Technology Research Center for Agricultural Land Pollution Prevention and Control of Guangdong Higher Education Institutes, College of Resources and Environment, Zhongkai University of Agriculture and Engineering, Guangzhou, 510225, China
| | - Hanyun Fan
- Key Laboratory of Environmental Pollution and Health of Guangdong Province, School of Environment, Jinan University, Guangzhou, 510632, China
| | - Yifan Wang
- Key Laboratory of Environmental Pollution and Health of Guangdong Province, School of Environment, Jinan University, Guangzhou, 510632, China
| | - Junwei Li
- Engineering and Technology Research Center for Agricultural Land Pollution Prevention and Control of Guangdong Higher Education Institutes, College of Resources and Environment, Zhongkai University of Agriculture and Engineering, Guangzhou, 510225, China
| | - Yanlin Lin
- Engineering and Technology Research Center for Agricultural Land Pollution Prevention and Control of Guangdong Higher Education Institutes, College of Resources and Environment, Zhongkai University of Agriculture and Engineering, Guangzhou, 510225, China
| | - Hui Liu
- Engineering and Technology Research Center for Agricultural Land Pollution Prevention and Control of Guangdong Higher Education Institutes, College of Resources and Environment, Zhongkai University of Agriculture and Engineering, Guangzhou, 510225, China; Innovative Institute of Animal Healthy Breeding, Zhongkai University of Agriculture and Engineering, Guangzhou, 510225, China
| | - Shihong Guo
- Fujian Provincial Academy of Environmental Science, Fuzhou, 350013, China
| | - Mingyu Xu
- School of Environment and Energy, South China University of Technology, Guangzhou, 510006, China
| | - Junfeng Wang
- Key Laboratory of Environmental Pollution and Health of Guangdong Province, School of Environment, Jinan University, Guangzhou, 510632, China.
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Salazar MJ, Wannaz ED, Blanco A, Miranda Pazcel EM, Pignata ML. Pb tolerance and accumulation capabilities of Bidens pilosa L. growing in polluted soils depend on the history of exposure. CHEMOSPHERE 2021; 269:128732. [PMID: 33143889 DOI: 10.1016/j.chemosphere.2020.128732] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Revised: 10/20/2020] [Accepted: 10/21/2020] [Indexed: 06/11/2023]
Abstract
Phytoremediation, especially phytoextraction, is a good alternative for remediation of soils contaminated with heavy metals. This method requires selection of species for their tolerance, high accumulation levels in harvestable parts, and high biomass production. Bidens pilosa L. has been reported as tolerant to and potentially hyperaccumulator of several heavy metals, including Pb, but with variable results in terms of effectiveness. The aim of this study was to analyse the intra- and interpopulation variability of B. pilosa in response to Pb in individuals from two populations: one historically exposed to Pb and another with no history of exposure. Bidens pilosa L. presented tolerance to Pb pollution in soil, evidenced in a higher survival rate, a better antioxidant response, and an efficient reduction in cell membrane damage mainly due to history of exposure. The period of exposure (30 years) was not long enough to obtain a B. pilosa population that provides seeds for phytoextraction projects, since the average value of total extraction was relatively low. Collecting seeds from a historically exposed population will provide some suitable individuals with Pb accumulation and translocation capabilities, but not a sufficient amount to conduct a large phytoremediation project. The individual accumulator profile of B. pilosa is not related to the physiological behaviour or to the Pb entry into the vascular bundle in root, but to the incorporation of other heavy metals that are micronutrients.
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Affiliation(s)
- María J Salazar
- Multidisciplinary Institute of Plant Biology, Pollution and Bioindicator Section, Faculty of Physical and Natural Sciences, National University of Córdoba, Av. Vélez Sársfield 1611, X5016CGA Córdoba, Argentina.
| | - Eduardo D Wannaz
- Multidisciplinary Institute of Plant Biology, Pollution and Bioindicator Section, Faculty of Physical and Natural Sciences, National University of Córdoba, Av. Vélez Sársfield 1611, X5016CGA Córdoba, Argentina
| | - Andrés Blanco
- Multidisciplinary Institute of Plant Biology, Pollution and Bioindicator Section, Faculty of Physical and Natural Sciences, National University of Córdoba, Av. Vélez Sársfield 1611, X5016CGA Córdoba, Argentina
| | - Eliana M Miranda Pazcel
- Multidisciplinary Institute of Plant Biology, Pollution and Bioindicator Section, Faculty of Physical and Natural Sciences, National University of Córdoba, Av. Vélez Sársfield 1611, X5016CGA Córdoba, Argentina
| | - María L Pignata
- Multidisciplinary Institute of Plant Biology, Pollution and Bioindicator Section, Faculty of Physical and Natural Sciences, National University of Córdoba, Av. Vélez Sársfield 1611, X5016CGA Córdoba, Argentina
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Hu R, Li Q, Huang Y, Zhao Y, Xiao L, Jing Q, Zou Y, Lin L. Intercropping with post-grafting generation of Solanum photeinocarpum decreases cadmium accumulation in soybean ( Glycine max). INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2021; 23:1124-1131. [PMID: 33528274 DOI: 10.1080/15226514.2021.1880366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
A pot experiment was designed to explore the effects of different post-grafting generations of Solanum photeinocarpum Nakamura et Odashima intercropping on growth and cadmium (Cd) accumulation in soybeans (varieties: "Zaodou" and "Liaoxian"). Post generation of S. photeinocarpum (ungrafted, grafted on eggplant, potato, and tomato, respectively) were utilized to intercrop with two varieties of soybean in Cd-contaminated soil. Soybean monoculture was employed as a control. Consequently, intercropping with different post-grafting S. photeinocarpum generation, except for tomato rootstock grafts post-generation, could reduce soybean biomass and photosynthetic pigment content. Additionally, all S. photeinocarpum post-grafting generations had the capacity to reduce Cd content in soybean when intercropping, while tomato rootstock grafts post-generation exhibited an adequate ability to accumulate Cd in S. photeinocarpum compared to the ungrafted treatment. In particular, tomato rootstock grafts post-generation could effectively decrease Cd content in soybean organs by 14.09-62.13%, relative to soybean monoculture, but increased shoot Cd content and shoot Cd extraction of S. photeinocarpum by 10.33-13.49% and 10.38-12.03%, respectively, compared to the ungrafted treatment. Thus, tomato rootstock grafting may enhance the ability of post-grafting generation of S. photeinocarpum to remediate Cd-contaminated soil, and this grafting was able to reduce Cd accumulation in soybean.
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Affiliation(s)
- Rongping Hu
- College of Horticulture, Sichuan Agricultural University, Chengdu, China
- MOA Key Laboratory of Integrated Management of Pests on Crops in Southwest China, Institute of Plant Protection, Sichuan Academy of Agricultural Sciences, Chengdu, China
| | - Qinyuan Li
- College of Horticulture, Sichuan Agricultural University, Chengdu, China
| | - Yong Huang
- College of Horticulture, Sichuan Agricultural University, Chengdu, China
| | - Yan Zhao
- College of Horticulture, Sichuan Agricultural University, Chengdu, China
| | - Ling Xiao
- College of Horticulture, Sichuan Agricultural University, Chengdu, China
| | - Qianhe Jing
- College of Horticulture, Sichuan Agricultural University, Chengdu, China
| | - Yao Zou
- College of Horticulture, Sichuan Agricultural University, Chengdu, China
| | - Lijin Lin
- Institute of Pomology and Olericulture, Sichuan Agricultural University, Chengdu, China
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Dai H, Wei S, Pogrzeba M, Krzyżak J, Rusinowski S, Zhang Q. The cadmium accumulation differences of two Bidens pilosa L. ecotypes from clean farmlands and the changes of some physiology and biochemistry indices. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 209:111847. [PMID: 33388723 DOI: 10.1016/j.ecoenv.2020.111847] [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: 10/24/2020] [Revised: 12/03/2020] [Accepted: 12/19/2020] [Indexed: 05/15/2023]
Abstract
Bidens pilosa L. is a widely distributed Cd-hyperaccumulator species in the world with large biomass and fast growth rate. The Cd accumulating differences between different ecotypes of B. pilosa is not clear. This experiment firstly compared the Cd concentrations and relative physio-biochemical indices using two B. pilosa ecotypes collected from clean soils. The results showed that the Cd concentrations of stems and leaves of Hanzhong ecotype of B. pilosa (HZ) and Shenyang ecotype (SY) were all higher than their root Cd concentrations in different Cd concentration gradient experiment (from 2.57 mg kg-1 to 37.17 mg kg-1 in soils). Cd concentrations of the roots, stems and leaves of HZ and SY were all higher than in the soils either. However, HZ accumulated higher Cd concentrations than SY, i.e. roots increased by 32.7-45.8%, stems increased by 32.3-46.6% and leaves increased by 33.4-68.4%, respectively. Furthermore, the biomasses of HZ were all higher than the SY either. Compared to SY, higher Cd accumulation of HZ might be relevant with its higher photosynthetic pigment content, stomatal conductance, intercellular CO2 concentration, some antioxidant enzyme activities, H+-ATPase, Ca2+-ATPase and 5'-AMPase activities, and lower malondialdehyde (MDA) content. Particularly, the changes of extractable Cd concentrations in rhizospheric soils of HZ and SY were corresponding to their Cd concentrations. Considering the two different ecotypes of HZ and SY were all collected from different clean farmlands, the new foundings that different mechanisms of HZ and SY accumulating Cd from the soil might be very important for screening and constructing ideal hyperaccumulator aimed at improving phytoremediation capacities in the future.
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Affiliation(s)
- Huiping Dai
- College of Biological Science & Engineering, Shaanxi Province Key Laboratory of Bio-resources, Shaanxi University of Technology, Hanzhong 723001, China
| | - Shuhe Wei
- Key Laboratory of Pollution Ecology and Environment Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China.
| | - Marta Pogrzeba
- Institute for Ecology of Industrial Areas, 6 Kossutha St, Katowice 40-844, Poland
| | - Jacek Krzyżak
- Institute for Ecology of Industrial Areas, 6 Kossutha St, Katowice 40-844, Poland
| | - Szymon Rusinowski
- Institute for Ecology of Industrial Areas, 6 Kossutha St, Katowice 40-844, Poland
| | - Qing Zhang
- College of Biological Science & Engineering, Shaanxi Province Key Laboratory of Bio-resources, Shaanxi University of Technology, Hanzhong 723001, China
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Wang X, Li H, Liu Y, Cui T, Liao M, Lin L, Wang Z, Deng H, Liang D, Xia H, Tang Y. Mowing enhances the phytoremediation ability of cadmium-contaminated soil in the post-grafting generations of potential cadmium-hyperaccumulator Solanum photeinocarpum. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2020; 23:652-657. [PMID: 33197328 DOI: 10.1080/15226514.2020.1847036] [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] [Indexed: 06/11/2023]
Abstract
The study aimed at accessing the effects of mowing on the growth and cadmium (Cd) accumulation of the first post-grafting generation of potential Cd-hyperaccumulator plant Solanum photeinocarpum through the pot and plot experiments. Four grafting treatments were employed such as ungrafted (UG), self-rooted grafting by the same S. photeinocarpum seedling (SG), self-rooted grafting by two different development stages of S. photeinocarpum seedlings (DG), and grafting on the rootstock of wild potato (PG). The biomass, Cd content, and Cd extraction amount of S. photeinocarpum shoots significantly decreased with the increase of mowing times in the pot and plot experiments. The order of the grafting on the biomass, Cd content, and Cd extraction amountof in the first, second, third mowing shoots were PG > DG > SG > UG. For the Cd extraction amountof total moving shoots, SG, DG, and PG increased by 20.42%, 35.54%, and 52.94%, respectively, in the pot experiment, and increased by 11.56%, 26.28%, and 44.90%, respectively, in the plot experiment, compared with the UG. Therefore, mowing provides an insight into the phytoremediation ability of S. photeinocarpum to Cd.
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Affiliation(s)
- Xun Wang
- Institute of Pomology and Olericulture, Sichuan Agricultural University, Sichuan, Chengdu, China
| | - Hongyan Li
- Chongqing Academy of Forestry Sciences, Chongqing, China
| | - Yujia Liu
- College of Horticulture, Sichuan Agricultural University, Sichuan, Chengdu, China
| | - Tonghao Cui
- College of Horticulture, Sichuan Agricultural University, Sichuan, Chengdu, China
| | - Ming'an Liao
- College of Horticulture, Sichuan Agricultural University, Sichuan, Chengdu, China
| | - Lijin Lin
- Institute of Pomology and Olericulture, Sichuan Agricultural University, Sichuan, Chengdu, China
| | - Zhihui Wang
- College of Horticulture, Sichuan Agricultural University, Sichuan, Chengdu, China
| | - Honghong Deng
- Institute of Pomology and Olericulture, Sichuan Agricultural University, Sichuan, Chengdu, China
| | - Dong Liang
- Institute of Pomology and Olericulture, Sichuan Agricultural University, Sichuan, Chengdu, China
| | - Hui Xia
- Institute of Pomology and Olericulture, Sichuan Agricultural University, Sichuan, Chengdu, China
| | - Yi Tang
- Institute of Pomology and Olericulture, Sichuan Agricultural University, Sichuan, Chengdu, China
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9
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Gao Y, Wang Y, Qian J, Si W, Tan Q, Xu J, Zhao Y. Melatonin enhances the cadmium tolerance of mushrooms through antioxidant-related metabolites and enzymes. Food Chem 2020; 330:127263. [DOI: 10.1016/j.foodchem.2020.127263] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2019] [Revised: 04/30/2020] [Accepted: 06/04/2020] [Indexed: 01/26/2023]
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10
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Xu Z, Wang D, Tang W, Wang L, Li Q, Lu Z, Liu H, Zhong Y, He T, Guo S. Phytoremediation of cadmium-polluted soil assisted by D-gluconate-enhanced Enterobacter cloacae colonization in the Solanum nigrum L. rhizosphere. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 732:139265. [PMID: 32416401 DOI: 10.1016/j.scitotenv.2020.139265] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2020] [Revised: 04/23/2020] [Accepted: 05/05/2020] [Indexed: 06/11/2023]
Abstract
Microbe-assisted phytoremediation for Cd-polluted soil is being regarded increasingly. However, the availability of microbes that can collaborate with Cd-hyperaccumulators effectively has become one of bottlenecks restricting the remediation efficiency. A siderophore-producing bacterium (Y16; Enterobacter cloacae) isolated from the rhizospheric soil of Cd-hyperaccumulator Solanum nigrum L. was identified by 16S rRNA gene sequencing and biochemical analysis, and then used for analyzing microbial chemotaxis, carbon source utilization, and insoluble P/Cd mobilization capacities. Besides, a soil-pot trial was performed to underlie the phytoremediation mechanism of Cd-polluted soil assisted by D-gluconate-enhanced Enterobacter cloacae colonization (DEYC) in the Solanum nigrum L. rhizosphere. Results displayed that D-gluconate was an effective chemoattractant and carbon source strengthening Y16 colonization, and Y16 exhibited strong abilities to mobilize insoluble P/Cd in shake flask by extracellular acidification (p < 0.05). In the soil-pot trial, DEYC observably enhanced soil Cd phytoextraction by Solanum nigrum L., and increased microbial diversity according to alpha- and beta-diversity analysis (p < 0.05). Taxonomic distribution and co-occurrence network analysis suggested that DEYC increased relative abundances of dominant microbial taxa associated with soil acidification (Acidobacteria-6), indoleacetic acid secretion (Ensifer adhaerens), soil fertility improvement (Flavisolibacter, Bdellovibrio bacteriovorus, and Candidatus nitrososphaera), and insoluble Cd mobilization (Massilia timonae) at different classification levels. Importantly, COGs analysis further shown that DEYC aroused the up-regulation of key genes related to chemotactic motility, carbon fixation, TCA cycle, and propanoate metabolism. These results indicated that DEYC drove the rhizospheric enrichment of pivotal microbial taxa directly or indirectly involved in soil Cd mobilization, meanwhile distinctly promoted plant growth for accumulating more mobilizable Cd. Therefore, Y16 could be used as bio-inoculants for assisting phytoremediation of Cd-polluted soil.
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Affiliation(s)
- Zhimin Xu
- School of Environmental Science and Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China; Key Laboratory of Environmental Pollution and Health of Guangdong Province, School of Environment, Jinan University, Guangzhou 510632, China; Guangdong Provincial Engineering and Technology Research Center for Agricultural Land Pollution Prevention and Control, Guangzhou 510225, China
| | - Dongsheng Wang
- Key Laboratory of Environmental Pollution and Health of Guangdong Province, School of Environment, Jinan University, Guangzhou 510632, China
| | - Wanpeng Tang
- Key Laboratory of Environmental Pollution and Health of Guangdong Province, School of Environment, Jinan University, Guangzhou 510632, China
| | - Lili Wang
- Key Laboratory of Environmental Pollution and Health of Guangdong Province, School of Environment, Jinan University, Guangzhou 510632, China.
| | - Qusheng Li
- Key Laboratory of Environmental Pollution and Health of Guangdong Province, School of Environment, Jinan University, Guangzhou 510632, China
| | - Ziyan Lu
- School of Environmental Science and Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China; Guangdong Provincial Engineering and Technology Research Center for Agricultural Land Pollution Prevention and Control, Guangzhou 510225, China
| | - Hui Liu
- School of Environmental Science and Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China; Guangdong Provincial Engineering and Technology Research Center for Agricultural Land Pollution Prevention and Control, Guangzhou 510225, China
| | - Yuming Zhong
- School of Environmental Science and Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China; Guangdong Provincial Engineering and Technology Research Center for Agricultural Land Pollution Prevention and Control, Guangzhou 510225, China
| | - Tao He
- Key Laboratory of Environmental Pollution and Health of Guangdong Province, School of Environment, Jinan University, Guangzhou 510632, China
| | - Shihong Guo
- Fujian Provincial Academy of Environmental Science, Fuzhou 350013, China
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11
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Lin L, Sun J, Cui T, Zhou X, Liao M, Huan Y, Yang L, Wu C, Xia X, Wang Y, Li Z, Zhu J, Wang Z. Selenium accumulation characteristics of Cyphomandra betacea ( Solanum betaceum) seedlings. PHYSIOLOGY AND MOLECULAR BIOLOGY OF PLANTS : AN INTERNATIONAL JOURNAL OF FUNCTIONAL PLANT BIOLOGY 2020; 26:1375-1383. [PMID: 32647455 PMCID: PMC7326803 DOI: 10.1007/s12298-020-00838-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2020] [Revised: 04/23/2020] [Accepted: 06/12/2020] [Indexed: 05/13/2023]
Abstract
A pot experiment was conducted to study the selenium (Se) accumulation characteristics and the tolerance of Cyphomandra betacea (Solanum betaceum) seedlings under different soil Se concentrations. The 5 mg/kg soil Se concentration increased the C. betacea seedling biomass and photosynthetic pigment contents (chlorophyll a, chlorophyll b, total chlorophyll, and carotenoid), whereas the other soil Se concentrations (10, 25, and 50 mg/kg) inhibited seedling growth. Increases in the soil Se concentrations tended to decrease the superoxide dismutase activity and soluble protein content, but had the opposite effect on the peroxidase and catalase activities. The 5, 10, and 25 mg/kg soil Se concentrations decreased the DNA methylation levels of C. betacea seedlings because of an increase in demethylation patterns (versus 0 mg/kg), whereas the 50 mg/kg soil Se concentration increased the DNA methylation levels because of an increase in hypermethylation patterns (versus 0 mg/kg). Increases in the soil Se concentrations were accompanied by an increasing trend in the Se content of C. betacea seedlings. Moreover, the amount of Se extracted by the shoots was highest for the 25 mg/kg soil Se concentration. Therefore, C. betacea may be able to accumulate relatively large amounts of Se and its growth may be promoted in 5 mg/kg soil Se.
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Affiliation(s)
- Linjin Lin
- Institute of Pomology and Olericulture, Sichuan Agricultural University, Chengdu, Sichuan China
| | - Jing Sun
- Institute of Pomology and Olericulture, Sichuan Agricultural University, Chengdu, Sichuan China
| | - Tonghao Cui
- College of Horticulture, Sichuan Agricultural University, Chengdu, Sichuan China
| | - Xiong Zhou
- College of Horticulture, Sichuan Agricultural University, Chengdu, Sichuan China
| | - Ming’an Liao
- College of Horticulture, Sichuan Agricultural University, Chengdu, Sichuan China
| | - Yunmin Huan
- College of Horticulture, Sichuan Agricultural University, Chengdu, Sichuan China
| | - Liu Yang
- College of Horticulture, Sichuan Agricultural University, Chengdu, Sichuan China
| | - Caifang Wu
- Institute of Pomology and Olericulture, Sichuan Agricultural University, Chengdu, Sichuan China
| | - Xianmin Xia
- College of Horticulture, Sichuan Agricultural University, Chengdu, Sichuan China
| | - Yuxi Wang
- College of Horticulture, Sichuan Agricultural University, Chengdu, Sichuan China
| | - Zhiyu Li
- College of Horticulture, Sichuan Agricultural University, Chengdu, Sichuan China
| | - Jinpeng Zhu
- College of Horticulture, Sichuan Agricultural University, Chengdu, Sichuan China
| | - Zhihui Wang
- College of Horticulture, Sichuan Agricultural University, Chengdu, Sichuan China
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12
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Huang K, Yang L, Liu Q, Lin L, Liao M, Deng Q, Liang D, Xia H, Wang X, Wang J, Lv X, Tang Y. Effects of reciprocal grafting on cadmium accumulation in post-grafting generations of two ecotypes of Solanum photeinocarpum. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2020; 22:1338-1347. [PMID: 32524826 DOI: 10.1080/15226514.2020.1774738] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Farmland and mining ecotypes of the potential cadmium (Cd)-hyperaccumulator Solanum photeinocarpum were collected to study the effects of reciprocal grafting on the growth of, and Cd accumulation in, the post-grafting generations. The post generations of the following plant materials were evaluated in a pot experiment: the un-grafted farmland ecotype, grafted plants with the farmland ecotype as the scion or the rootstock, the un-grafted mining ecotype, and grafted plants with the mining ecotype as the scion or the rootstock. The results showed that reciprocal grafting increased the biomass, the activities of superoxide dismutase, peroxidase, and catalase, and the soluble protein content in the post-grafting generations of both ecotypes S. photeinocarpum. Reciprocal grafting also increased the Cd content in, and amount of Cd extracted by, the post-grafting generations of both ecotypes S. photeinocarpum as a result of lower soil pH and higher soil available Cd concentrations. Additionally, grafting affected the DNA methylation levels by inducing hypermethylation or demethylation in the post-grafting generation. Therefore, reciprocal grafting can enhance the Cd accumulation (phytoremediation) capacity of post-grafting generations of both ecotypes S. photeinocarpum by affecting DNA methylation levels.
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Affiliation(s)
- Kewen Huang
- College of Horticulture, Sichuan Agricultural University, Chengdu, China
| | - Liu Yang
- College of Horticulture, Sichuan Agricultural University, Chengdu, China
| | - Qin Liu
- College of Horticulture, Sichuan Agricultural University, Chengdu, China
| | - Lijin Lin
- Institute of Pomology and Olericulture, Sichuan Agricultural University, Chengdu, China
| | - Ming'an Liao
- College of Horticulture, Sichuan Agricultural University, Chengdu, China
| | - Qunxian Deng
- College of Horticulture, Sichuan Agricultural University, Chengdu, China
| | - Dong Liang
- Institute of Pomology and Olericulture, Sichuan Agricultural University, Chengdu, China
| | - Hui Xia
- Institute of Pomology and Olericulture, Sichuan Agricultural University, Chengdu, China
| | - Xun Wang
- Institute of Pomology and Olericulture, Sichuan Agricultural University, Chengdu, China
| | - Jin Wang
- Institute of Pomology and Olericulture, Sichuan Agricultural University, Chengdu, China
| | - Xiulan Lv
- Institute of Pomology and Olericulture, Sichuan Agricultural University, Chengdu, China
| | - Yi Tang
- Institute of Pomology and Olericulture, Sichuan Agricultural University, Chengdu, China
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13
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Wu C, Huan Y, Yang L, Lin L, Liao M, Wang J, Wang Z, Liang D, Xia H, Tang Y, Lv X, Wang X. Effects of intercropping with two Solanum species on the growth and cadmium accumulation of Cyphomandra betacea seedlings. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2020; 22:1242-1248. [PMID: 32393060 DOI: 10.1080/15226514.2020.1759505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The contamination of orchard by cadmium (Cd) has recently increased in severity. To decrease the Cd content in fruit tree, a pot-based experiment was conducted to study the effects of intercropping with two Solanum species (Solanum alatum and Solanum diphyllum) on the growth and Cd accumulation of Cyphomandra betacea seedlings. The data revealed that intercropping with two Solanum species significantly increased the biomass, photosynthetic pigment contents, antioxidant enzyme activities, and soluble protein contents of C. betacea seedlings under Cd stress condition. The intercropping significantly decreased the Cd content in C. betacea seedlings. However, the intercropping significantly decreased the S. alatum and S. diphyllum biomasses, while increased the Cd content and accumulation in the roots and shoots of two Solanum species, and the Cd uptake by S. alatum was lower than that of S. diphyllum. Therefore, intercropping with these two Solanum species, especially S. diphyllum, may promote the growth and decrease the Cd content in C. betacea.
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Affiliation(s)
- Caifang Wu
- Institute of Pomology and Olericulture, Sichuan Agricultural University, Chengdu, China
| | - Yunmin Huan
- College of Horticulture, Sichuan Agricultural University, Chengdu, China
| | - Liu Yang
- College of Horticulture, Sichuan Agricultural University, Chengdu, China
| | - Lijin Lin
- Institute of Pomology and Olericulture, Sichuan Agricultural University, Chengdu, China
| | - Ming'an Liao
- College of Horticulture, Sichuan Agricultural University, Chengdu, China
| | - Jin Wang
- Institute of Pomology and Olericulture, Sichuan Agricultural University, Chengdu, China
| | - Zhihui Wang
- College of Horticulture, Sichuan Agricultural University, Chengdu, China
| | - Dong Liang
- Institute of Pomology and Olericulture, Sichuan Agricultural University, Chengdu, China
| | - Hui Xia
- Institute of Pomology and Olericulture, Sichuan Agricultural University, Chengdu, China
| | - Yi Tang
- Institute of Pomology and Olericulture, Sichuan Agricultural University, Chengdu, China
| | - Xiulan Lv
- Institute of Pomology and Olericulture, Sichuan Agricultural University, Chengdu, China
| | - Xun Wang
- Institute of Pomology and Olericulture, Sichuan Agricultural University, Chengdu, China
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14
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Exogenous melatonin promotes growth and sucrose metabolism of grape seedlings. PLoS One 2020; 15:e0232033. [PMID: 32324780 PMCID: PMC7179914 DOI: 10.1371/journal.pone.0232033] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Accepted: 04/06/2020] [Indexed: 12/15/2022] Open
Abstract
Melatonin (MT) has many important functions in plants. In this study, different concentrations of MT (0, 50, 100, 150, and 200 μmol/L) were sprayed on grape seedlings, and its effects on plant growth and sucrose metabolism were determined. The results show that there was a mutual influence and promotional relationship between growth and sugar metabolism in grape seedlings. The MT treatments promoted the development and growth of grape seedlings by increasing their biomass and promoting the photosynthetic performance of leaves. This resulted in increased nutrient absorption and a greater ability to compete for resources. The increase in photosynthesis resulted in greater sucrose production. The MT treatments increased the activities of enzymes related to sucrose metabolism, so that a large amount of sucrose was hydrolysed into glucose and fructose to meet the rapid growth requirements of grape seedlings. The increased total soluble sugars contents and increased activities of antioxidant enzymes resulted in greater resistance of grape seedlings, and greater adaptability to environmental changes. In general, MT treatments had beneficial effects on grape seedling growth, glucose metabolism, and resistance. Under these conditions, foliar spraying with MT at 150 μmol/L had the best effects.
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