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Di X, Jing R, Qin X, Liang X, Wang L, Xu Y, Sun Y, Huang Q. The role and transcriptomic mechanism of cell wall in the mutual antagonized effects between selenium nanoparticles and cadmium in wheat. JOURNAL OF HAZARDOUS MATERIALS 2024; 472:134549. [PMID: 38733789 DOI: 10.1016/j.jhazmat.2024.134549] [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: 03/06/2024] [Revised: 04/30/2024] [Accepted: 05/03/2024] [Indexed: 05/13/2024]
Abstract
Selenium nanoparticles (SeNPs) has been reported as a beneficial role in alleviating cadmium (Cd) toxicity in plant. However, underlying molecular mechanisms about SeNPs reducing Cd accumulation and alleviating Cd toxicity in wheat are not well understood. A hydroponic culture was performed to evaluate Cd and Se accumulation, cell wall components, oxidative stress and antioxidative system, and transcriptomic response of wheat seedlings after SeNPs addition under Cd stress. Results showed that SeNPs application notably reduced Cd concentration in root and in shoot by 56.9% and 37.3%, respectively. Additionally, SeNPs prompted Cd distribution in root cell wall by 54.7%, and increased lignin, pectin and hemicellulose contents by regulating cell wall biosynthesis and metabolism-related genes. Further, SeNPs alleviated oxidative stress caused by Cd in wheat through signal transduction pathways. We also observed that Cd addition reduced Se accumulation by downregulating the expression level of aquaporin 7. These results indicated that SeNPs alleviated Cd toxicity and reduced Cd accumulation in wheat, which were associated with the synergetic regulation of cell wall biosynthesis pathway, uptake transporters, and antioxidative system via signaling pathways.
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Affiliation(s)
- Xuerong Di
- Innovation Team of Heavy Metal Ecotoxicity and Pollution Remediation, Ministry of Agriculture and Rural Affairs (MARA), Agro-Environmental Protection Institute, MARA, Tianjin 300191, China
| | - Rui Jing
- Innovation Team of Heavy Metal Ecotoxicity and Pollution Remediation, Ministry of Agriculture and Rural Affairs (MARA), Agro-Environmental Protection Institute, MARA, Tianjin 300191, China
| | - Xu Qin
- Innovation Team of Heavy Metal Ecotoxicity and Pollution Remediation, Ministry of Agriculture and Rural Affairs (MARA), Agro-Environmental Protection Institute, MARA, Tianjin 300191, China
| | - Xuefeng Liang
- Innovation Team of Heavy Metal Ecotoxicity and Pollution Remediation, Ministry of Agriculture and Rural Affairs (MARA), Agro-Environmental Protection Institute, MARA, Tianjin 300191, China
| | - Lin Wang
- Innovation Team of Heavy Metal Ecotoxicity and Pollution Remediation, Ministry of Agriculture and Rural Affairs (MARA), Agro-Environmental Protection Institute, MARA, Tianjin 300191, China
| | - Yingming Xu
- Innovation Team of Heavy Metal Ecotoxicity and Pollution Remediation, Ministry of Agriculture and Rural Affairs (MARA), Agro-Environmental Protection Institute, MARA, Tianjin 300191, China
| | - Yuebing Sun
- Innovation Team of Heavy Metal Ecotoxicity and Pollution Remediation, Ministry of Agriculture and Rural Affairs (MARA), Agro-Environmental Protection Institute, MARA, Tianjin 300191, China.
| | - Qingqing Huang
- Innovation Team of Heavy Metal Ecotoxicity and Pollution Remediation, Ministry of Agriculture and Rural Affairs (MARA), Agro-Environmental Protection Institute, MARA, Tianjin 300191, China.
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Shomali A, Das S, Sarraf M, Johnson R, Janeeshma E, Kumar V, Aliniaeifard S, Puthur JT, Hasanuzzaman M. Modulation of plant photosynthetic processes during metal and metalloid stress, and strategies for manipulating photosynthesis-related traits. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 206:108211. [PMID: 38029618 DOI: 10.1016/j.plaphy.2023.108211] [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: 06/22/2023] [Revised: 11/02/2023] [Accepted: 11/19/2023] [Indexed: 12/01/2023]
Abstract
Metals constitute vital elements for plant metabolism and survival, acting as essential co-factors in cellular processes which are indispensable for plant growth and survival. Excess or deficient provision of metal/metalloids puts plant's life and survival at risk, thus considered a potent stress for plants. Chloroplasts as an organelle with a high metal demand form a pivotal site within the metal homeostasis network. Therefore, the metal-mediated electron transport chain (ETC) in chloroplasts is a primary target site of metal/metalloid-induced stresses. Both excess and deficient availability of metal/metalloids threatens plant's photosynthesis in several ways. Energy demands from the photosynthetic carbon reactions should be in balance with energy output of ETC. Malfunctioning of ETC components as a result of metal/metalloid stress initiates photoinhiition. A feedback inhibition from carbon fixation process also impedes the ETC. Metal stress impairs antioxidant enzyme activity, pigment biosynthesis, and stomatal function. However, genetic manipulations, nutrient management, keeping photostasis, and application of phytohormones are among strategies for coping with metal stress. Consequently, a comprehensive understanding of the underlying mechanisms of metal/metalloid stress, as well as the exploration of potential strategies to mitigate its impact on plants are imperative. This review offers a mechanistic insight into the disruption of photosynthesis regulation by metal/metalloids and highlights adaptive approaches to ameliorate their effects on plants. Focus was made on photostasis, nutrient interactions, phytohormones, and genetic interventions for mitigating metal/metalloid stresses.
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Affiliation(s)
- Aida Shomali
- Photosynthesis Laboratory, Department of Horticulture, College of Agricultural Technology (Aburaihan), University of Tehran, Tehran, Iran; Controlled Environment Agriculture Center, College of Agricultural and Natural Sciences, University of Tehran, Iran
| | - Susmita Das
- Agricultural and Ecological Research Unit, Indian Statistical Institute, Kolkata 700108, India
| | - Mohammad Sarraf
- Department of Horticultural Science, Faculty of Agriculture, Shahid Chamran University of Ahvaz, Ahvaz, Iran
| | - Riya Johnson
- Plant Physiology and Biochemistry Division, Department of Botany, University of Calicut, C.U. Campus P.O, Kerala 673635, India
| | - Edappayil Janeeshma
- Department of Botany, MES KEVEEYAM College, Valanchery, Malappuram, Kerala, India
| | - Vinod Kumar
- Department of Botany, Government College for Women Gandhi Nagar, Jammu 180004, Jammu and Kashmir, India
| | - Sasan Aliniaeifard
- Photosynthesis Laboratory, Department of Horticulture, College of Agricultural Technology (Aburaihan), University of Tehran, Tehran, Iran.
| | - Jos T Puthur
- Plant Physiology and Biochemistry Division, Department of Botany, University of Calicut, C.U. Campus P.O, Kerala 673635, India
| | - Mirza Hasanuzzaman
- Department of Agronomy, Faculty of Agriculture, Sher-e-Bangla Agricultural University, Dhaka 1207, Bangladesh; Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Republic of Korea.
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Lv Y, Zhao Y, He Y, Wang J, Zheng Y, Chen X, Huang F, Liu J, Yu L. Synergistic effects of gamma-aminobutyric acid and melatonin on seed germination and cadmium tolerance in tomato. PLANT SIGNALING & BEHAVIOR 2023; 18:2216001. [PMID: 37302802 DOI: 10.1080/15592324.2023.2216001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Revised: 01/19/2023] [Accepted: 02/20/2023] [Indexed: 06/13/2023]
Abstract
The effects of exogenous γ-aminobutyric acid (GABA) and melatonin (MT) on tomato seed germination and shoot growth exposed to cadmium stress were investigated. On the one hand, treatment with MT (10-200 μM) or GABA (10-200 μM) alone could significantly relieve cadmium stress in tomato seedlings, which is reflected in increasing the germination rate, vigor index, fresh weight, dry weight and radicle lengths of tomato seeds, as well as the soluble content compared to the absence of exogenous treatment, and the alleviating effect reached the peak in the 200 µM GABA or 150 µM MT alone. On the other hand, exogenous MT and GABA showed synergistic effects on the germination of tomato seed under cadmium stress. Moreover, the application of 100 µM GABA combined with 100 µM MT markedly decreased the contents of Cd and MDA by upregulating the activities of antioxidant enzymes, thereby alleviating the toxic effect of cadmium stress on tomato seeds. Collectively, the combinational strategy showed significant positive effects on seed germination and cadmium stress resistance in tomato.
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Affiliation(s)
- Yiying Lv
- Yunnan Urban Agricultural Engineering and Technological Research Center, College of Agronomy, Kunming University, Kunming, China
| | - Yongteng Zhao
- Yunnan Urban Agricultural Engineering and Technological Research Center, College of Agronomy, Kunming University, Kunming, China
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, China
| | - Yuansheng He
- Yunnan Tobacco Company Lincang Company, Lincang, Yunnan, China
| | - Jiming Wang
- Yunnan Tobacco Company Lincang Company, Lincang, Yunnan, China
| | - Yuanxian Zheng
- Yunnan Tobacco Company Lincang Company, Lincang, Yunnan, China
| | - Xiaolong Chen
- Henan China Tobacco Industry Co. Ltd, Zhengzhou, Henan, China
| | - Feiyan Huang
- Yunnan Urban Agricultural Engineering and Technological Research Center, College of Agronomy, Kunming University, Kunming, China
| | - Jiani Liu
- Yunnan Urban Agricultural Engineering and Technological Research Center, College of Agronomy, Kunming University, Kunming, China
| | - Lei Yu
- Yunnan Urban Agricultural Engineering and Technological Research Center, College of Agronomy, Kunming University, Kunming, China
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Ahmed S, Mudassar S, Sardar R, Yasin NA. 28-Homo-Brassinolide Confers Cadmium Tolerance in Vigna radiate L. Through Modulating Minerals Uptake, Antioxidant System and Gas Exchange Attributes. JOURNAL OF PLANT GROWTH REGULATION 2023. [DOI: 10.1007/s00344-023-11027-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Accepted: 05/05/2023] [Indexed: 06/16/2023]
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Bukhari SAQ, Nawaz A, Dawood M. Evaluation of phytoremediation potential and resistance of Gladiolus grandiflora L. against cadmium stress. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2023:10.1007/s10653-023-01579-8. [PMID: 37097602 DOI: 10.1007/s10653-023-01579-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2023] [Accepted: 04/12/2023] [Indexed: 06/19/2023]
Abstract
Although irrigation water is a fundamental need for plant growth, it is also a source of pollutants if contaminated with harmful materials like cadmium (Cd). Irrigation water possessing abundant Cd causes damage to soil, plants, animals and ultimately human beings through the food chain. A pot experiment was conducted to evaluate the gladiolus (Gladiolus grandiflora L.) potential of Cd accumulation and the capability of the plant to be an economically beneficial choice in presence of high Cd irrigation water supply. Artificially prepared four levels of Cd irrigation water were applied to the plants viz., 30, 60, 90 and 120 mg L-1. The results revealed that 30 mg L-1 Cd had no difference in all growth-related parameters when compared to the control. Photosynthesis rate, stomatal conductance and transpiration rate along with plant height and spike length were reduced with high accumulation levels of Cd in plants. The main plant portion for Cd storage found in Gladiolus grandiflora L was corm where the amount of Cd was 10-12 times higher than the amount found in leaves, and 2-4 times more than the stem. This deportment was further established by the translocation factor (TF). In corm to shoot TF and corm to stem TF, the factor reduced with increasing Cd levels, while, in corm to leaves TF, Cd levels were statistically non-significant. From corm to shoot TF value of 0.68 and 0.43 in case of 30 and 60 mg L-1, Cd treatments indicates good phytoremediation potential of Gladiolus in low and moderate Cd-polluted environments. Conclusively, the study reveals the good capability of Gladiolus grandiflora L. to harvest Cd from the soil and water in reasonably good amount with sufficient potential to grow under irrigation-based Cd stress. Under revelations of the study, Gladiolus grandiflora L appeared as a Cd accumulator which could potentially be used as a sustainable approach for phytoremediation of Cd.
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Affiliation(s)
| | - Aamir Nawaz
- Department of Horticulture, Bahauddin Zakariya University, Multan, Pakistan.
| | - Muhammad Dawood
- Department of Environmental Sciences, Bahauddin Zakariya University, Multan, Pakistan.
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El-Mageed TAA, Semida WM, Abdou NM, El-Mageed SAA. Coupling Effects of Potassium Fertilization Rate and Application Time on Growth and Grain Yield of Wheat (Triticum aestivum L.) Plants Grown Under Cd-Contaminated Saline Soil. JOURNAL OF SOIL SCIENCE AND PLANT NUTRITION 2023; 23:1070-1084. [DOI: 10.1007/s42729-022-01104-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Accepted: 12/15/2022] [Indexed: 09/01/2023]
Abstract
Abstract
Potassium is an essential macronutrient, where its availability regulates numerous biochemical, phenological, and physiological responses in plants. Synchronizing potassium supply with plant demand is a key factor to enhance growth and grain production of wheat grown in cadmium-contaminated saline soils. Field experiments were conducted in El Fayoum province, Egypt, between latitudes 29° 02′ and 29° 35′ N and longitudes 30° 23′ and 31° 05′ E, during the cropping seasons of 2017–2018 and 2018–2019 to determine the influence of different applied potassium rates and times on nutrient uptake and wheat yield grown under Cd-contaminated saline soil (ECe = 8.53 dS m−1 and Cd = 18 mg kg−1 soil). Four K levels (K0, K40, K80, and K120 representing 0, 40, 80, and 120 kg ha−1) were applied at different application times [full dose (basal) at sowing (100% S), two equal split doses at sowing and flowering stage (50% S + 50% F), and full dose at flowering stage (100% F)]. The experimental treatments were arranged in a randomized split complete block design and replicated three times. The applied K rates, times, and their interaction induced significant differences in nutrient uptake and physiological responses which in turn improved the growth and yield of the wheat crop. Potassium addition with 120 kg ha−1 at two equal split doses (50% S + 50% F) resulted in the highest values of plant height (97 cm), Fv/Fm (0.83), PI (5.49), SPAD (58.63), MSI (34.57), seed yield (5.04 t ha−1), straw yield (9.04 t ha−1), and water productivity (0.99 kg m−3). Similarly, the uptake of N, P, K, Ca, Mg, Fe, Mn, and Zn was increased, while the uptake of Na and Cd decreased as the K supply increased under the split application. The addition of potassium by 120 kg ha−1 in two equal split doses at the sowing and flowering stage could be a valuable approach to improve yield and yield quality of wheat crop grown under cadmium-contaminated saline soils.
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Haroon U, Munis MFH, Liaquat F, Khizar M, Elahi M, Chaudhary HJ. Biofilm formation and flocculation potential analysis of halotolerant Bacillus tequilensis and its inoculation in soil to mitigate salinity stress of chickpea. PHYSIOLOGY AND MOLECULAR BIOLOGY OF PLANTS : AN INTERNATIONAL JOURNAL OF FUNCTIONAL PLANT BIOLOGY 2023; 29:277-288. [PMID: 36875729 PMCID: PMC9981856 DOI: 10.1007/s12298-023-01280-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 12/30/2022] [Accepted: 01/11/2023] [Indexed: 06/12/2023]
Abstract
Application of beneficial microbes in soil is an important avenue to control plant stresses. In this study, the salinity tolerance of halotolerant bacteria (Bacillus tequilensis) was investigated and the bacterium was inoculated in the soil to mitigate salinity stress. The results revealed the highest floc yield and biofilm formation ability of B. tequilensis at 100 mM NaCl concentration. Fourier transformed infrared spectroscopy depicted the presence of carbohydrates and proteins which binds with sodium ions (Na+) and provide tolerance against salinity. Using PCR, plant growth-promoting bacterial genes viz., 1-aminocyclopropane-1-carboxylate deaminase and pyrroloquinoline quinone were successfully amplified from the genome of B. tequilensis. In the saline soil, B. tequilensis was inoculated and chickpea plants were grown. The bacterial strain improved the physiology, biochemistry, and antioxidant enzyme activities of the chickpea plant under salt stress. Plants inoculated with B. tequilensis exhibited higher relative water content, higher photosynthetic pigments, lower levels of hydrogen peroxide (H2O2) and malondialdehyde, and improved enzymatic activity for the scavenging of reactive oxygen species. The findings of this study suggest the sustainable use of B. tequilensis to mitigate the salinity stress of chickpea and other crops. This bacterium not only helps in the alleviation of the toxic effects of salt but also increases plant growth along with a reduction in crop losses due to salinity. Supplementary Information The online version contains supplementary material available at 10.1007/s12298-023-01280-1.
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Hu SY, Gao H, Li J, Wang YH, Gao AG, Wen JH, Balah MA, Wu AP. The latitudinal and longitudinal allelopathic patterns of an invasive alligator weed (Alternanthera philoxeroides) in China. PLoS One 2023; 18:e0280866. [PMID: 36689420 PMCID: PMC9870113 DOI: 10.1371/journal.pone.0280866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Accepted: 01/10/2023] [Indexed: 01/24/2023] Open
Abstract
Allelopathy has been considered a good explanation for the successful invasion of some invasive plants. However, the real latitudinal and longitudinal allelopathic effects on native species have rarely been documented since many exotics have spread widely. We conducted a Petri dish experiment to determine the latitudinal and longitudinal allelopathic patterns of an invasive alligator weed (Alternanthera philoxeroides) on a common crop (Lactuca sativa) in China, and find what determines the allelopathic intensity. The results showed that the allelopathic effects of A. philoxeroides increased with the latitude while decreased with the longitude. This indicated that A. philoxeroides used its allelopathy to gain competitive advantages more in its recent invaded communities than that in its early invaded ones as A. philoxeroides is expanding from southeast China to northwest China. Furthermore, we found that the allelopathic intensity of A. philoxeroide was negatively correlated to the leaf contents of soluble carbohydrate (SC), carbon (C) and nitrogen (N), but that was positively correlated to the leaf contents of soluble protein (SP), free amino acids (FAA), plant polyphenol (PP), phosphorus (P) and potassium (K). These results suggested that the allelopathic intensity of A. philoxeroide was more determined by the limited P and K nutrients as well as the intermediate allelochemicals (SP, FAA, PP) rather than the unlimited C, N and SC. Thus, we can speculate that the negative or positive effects of plant aqueous extracts are a function of not only the extract concentrations but also the trade-offs between inhibition and promotion of all components in the extracts. Then we could reduce the allelopathic effects of A. philoxeroide by controlling the component contents in the plant tissues, by fertilization or other managements, especially in the plant recent invaded communities.
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Affiliation(s)
- Si-Yi Hu
- Ecology Department, College of Resources and Environment, Hunan Provincial Key Laboratory of Rural Ecosystem Health in Dongting Lake Area, Hunan Agricultural University, Changsha, China
| | - Hui Gao
- Ecology Department, College of Resources and Environment, Hunan Provincial Key Laboratory of Rural Ecosystem Health in Dongting Lake Area, Hunan Agricultural University, Changsha, China
| | - Jian Li
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, China
| | - Yan-Hong Wang
- School of Forestry and Bio-technology, Zhejiang Agriculture & Forestry University, Hangzhou, China
| | - An-Guo Gao
- Ecology Department, College of Resources and Environment, Hunan Provincial Key Laboratory of Rural Ecosystem Health in Dongting Lake Area, Hunan Agricultural University, Changsha, China
- Institute of Plant Protection, Hunan Academy of Agricultural Sciences, Changsha, China
| | - Ji-Hui Wen
- Ecology Department, College of Resources and Environment, Hunan Provincial Key Laboratory of Rural Ecosystem Health in Dongting Lake Area, Hunan Agricultural University, Changsha, China
- Huaihua University, Huaihua City, Hunan Province, China
| | - Mohamed Abdelaziz Balah
- Ecology and Dry Lands Agriculture Division, Plant Protection Department, Desert Research Center, El Matariya, Cairo, Egypt
| | - Ai-Ping Wu
- Ecology Department, College of Resources and Environment, Hunan Provincial Key Laboratory of Rural Ecosystem Health in Dongting Lake Area, Hunan Agricultural University, Changsha, China
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Ahmad A, Akram W, Wang R, Shahzadi I, Umer M, Yasin NA, Wu T. Pathogenicity factors of Phytophthora melonis revealed by comparative proteomics. JOURNAL OF PLANT INTERACTIONS 2022; 17:183-197. [DOI: 10.1080/17429145.2021.2014581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Accepted: 12/01/2021] [Indexed: 06/16/2023]
Affiliation(s)
- Aqeel Ahmad
- Institute of Facility Agriculture, Guangdong Academy of Agricultural Sciences (IFA, GDAAS) / Vegetable Research Institute, Guangdong Academy of Agriculture Sciences / Guangdong Key Laboratory for New Technology Research of Vegetables, Guangzhou, People’s Republic of China
| | - Waheed Akram
- Department of Plant Pathology, Faculty of Agricultural Sciences, University of the Punjab, Lahore, Pakistan
| | - Rui Wang
- Institute of Facility Agriculture, Guangdong Academy of Agricultural Sciences (IFA, GDAAS) / Vegetable Research Institute, Guangdong Academy of Agriculture Sciences / Guangdong Key Laboratory for New Technology Research of Vegetables, Guangzhou, People’s Republic of China
| | - Iqra Shahzadi
- Hubei Key Laboratory of Biomass Resource Chemistry and Environmental Biotechnology, Hubei International Scientific and Technological Cooperation Base of Sustainable Resource and Energy, Hubei Engineering Center of Natural Polymers-based Medical Materials, School of Resource and Environmental Science, Wuhan University, Wuhan, People’s Republic of China
| | - Muhammad Umer
- Forestry College, Research Center of Forest Ecology, Guizhou University, Guiyang, People’s Republic of China
- Key Laboratory of Karst Georesources and Environment, Ministry of Education, Guizhou University, Guiyang, People’s Republic of China
| | | | - Tingquan Wu
- Institute of Facility Agriculture, Guangdong Academy of Agricultural Sciences (IFA, GDAAS) / Vegetable Research Institute, Guangdong Academy of Agriculture Sciences / Guangdong Key Laboratory for New Technology Research of Vegetables, Guangzhou, People’s Republic of China
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Rahman SU, Nawaz MF, Gul S, Yasin G, Hussain B, Li Y, Cheng H. State-of-the-art OMICS strategies against toxic effects of heavy metals in plants: A review. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 242:113952. [PMID: 35999767 DOI: 10.1016/j.ecoenv.2022.113952] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 08/01/2022] [Accepted: 08/03/2022] [Indexed: 06/15/2023]
Abstract
Environmental pollution of heavy metals (HMs), mainly due to anthropogenic activities, has received growing attention in recent decades. HMs, especially the non-essential carcinogenic ones, including chromium (Cr), cadmium (Cd), mercury (Hg), aluminum (Al), lead (Pb), and arsenic (As), have appeared as the most significant air, water, and soil pollutants, which adversely affect the quantity, quality, and security of plant-based food all over the world. Plants exposed to HMs could experience significant decline in growth and yield. To avoid or tolerate the toxic effects of HMs, plants have developed complicated defense mechanisms, including absorption and accumulation of HMs in cell organelles, immobilization by forming complexes with organic chelates, extraction by using numerous transporters, ion channels, signalling cascades, and transcription elements, among others. OMICS strategies have developed significantly to understand the mechanisms of plant transcriptomics, genomics, proteomics, metabolomics, and ionomics to counter HM-mediated stress stimuli. These strategies have been considered to be reliable and feasible for investigating the roles of genomics (genomes), transcriptomic (coding), mRNA transcripts (non-coding), metabolomics (metabolites), and ionomics (metal ions) to enhance stress resistance or tolerance in plants. The recent developments in the mechanistic understandings of the HMs-plant interaction in terms of their absorption, translocation, and toxicity invasions at the molecular and cellular levels, as well as plants' response and adaptation strategies against these stressors, are summarized in the present review. Transcriptomics, genomics, metabolomics, proteomics, and ionomics for plants against HMs toxicities are reviewed, while challenges and future recommendations are also discussed.
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Affiliation(s)
- Shafeeq Ur Rahman
- School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan, Guangdong 523808, China; MOE Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing 100871, China
| | - Muhammad Farrakh Nawaz
- Department of Forestry and Range Management, University of Agricultureó, Faisalabad, Pakistan
| | - Sadaf Gul
- Department of Botany, University of Karachi, Karachi, Pakistan
| | - Ghulam Yasin
- Department of Forestry and Range Management, Bahauddin Zakariya University Multan, Pakistan
| | - Babar Hussain
- Department of Plant Science Karakoram International University (KIU), Gilgit 15100, Gilgit-Baltistan, Pakistan
| | - Yanliang Li
- School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan, Guangdong 523808, China; Dongguan Key Laboratory of Water Pollution and Ecological Safety Regulation, Dongguan, Guangdong 523808, China.
| | - Hefa Cheng
- MOE Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing 100871, China.
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Yang X, Lai JL, Zhang Y, Luo XG. Toxicity analysis of TNT to alfalfa's mineral nutrition and secondary metabolism. PLANT CELL REPORTS 2022; 41:1273-1284. [PMID: 35305132 DOI: 10.1007/s00299-022-02856-z] [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: 01/16/2022] [Accepted: 02/28/2022] [Indexed: 06/14/2023]
Abstract
Alfalfa has the ability to degrade TNT. TNT exposure caused root disruption of mineral nutrient metabolism. The exposure of TNT imbalanced basal cell energy metabolism. The mechanism of 2,4,6-trinitrotoluene (TNT) toxicity effects was analyzed in alfalfa (Medicago sativa L.) seedlings by examining the mineral nutrition and secondary metabolism of the plant roots. Exposure to 25-100 mg·L-1 TNT in a hydroponic solution for 72 h resulted in a TNT absorption rate of 26.8-63.0%. The contents of S, K, and B in root mineral nutrition metabolism increased significantly by 1.70-5.46 times, 1.38-4.01 times, and 1.40-4.03 times, respectively, after TNT exposure. Non-targeted metabolomics analysis of the roots identified 189 significantly upregulated metabolites and 420 significantly downregulated metabolites. The altered metabolites were primarily lipids and lipid-like molecules, and the most significant enrichment pathways were alanine, aspartate, and glutamate metabolism and glycerophospholipid metabolism. TNT itself was transformed in the root system into several intermediate products, including 4-hydroxylamino-2,6-dinitrotoluene, 4-amino-2,6-dinitrotoluene, 2-hydroxylamino-4,6-dinitrotoluene, 2,4',6,6'-tetranitro-2',4-azoxytoluene, 4,4',6,6'-tetranitro-2,2'-azoxytoluene, and 2,4-dinitrotoluene. Overall, TNT exposure disturbed the mineral metabolism balance, and significantly interfered with basic plant metabolism.
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Affiliation(s)
- Xu Yang
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, 621010, China
| | - Jin-Long Lai
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, 621010, China
- State Key Laboratory of NBC Protection for Civilian, Beijing, 102205, China
| | - Yu Zhang
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, 621010, China
| | - Xue-Gang Luo
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, 621010, China.
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Johnson R, Vishwakarma K, Hossen MS, Kumar V, Shackira AM, Puthur JT, Abdi G, Sarraf M, Hasanuzzaman M. Potassium in plants: Growth regulation, signaling, and environmental stress tolerance. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2022; 172:56-69. [PMID: 35032888 DOI: 10.1016/j.plaphy.2022.01.001] [Citation(s) in RCA: 54] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Revised: 12/02/2021] [Accepted: 01/02/2022] [Indexed: 05/14/2023]
Abstract
Potassium (K) is an essential element for the growth and development of plants; however, its scarcity or excessive level leads to distortion of numerous functions in plants. It takes part in the control of various significant functions in plant advancement. Because of the importance index, K is regarded second after nitrogen for whole plant growth. Approximately, higher than 60 enzymes are reliant on K for activation within the plant system, in which K plays a vital function as a regulator. Potassium provides assistance in plants against abiotic stress conditions in the environment. With this background, the present paper reviews the physiological functions of K in plants like stomatal regulation, photosynthesis and water uptake. The article also focuses upon the uptake and transport mechanisms of K along with its role in detoxification of reactive oxygen species and in conferring tolerance to plants against abiotic stresses. It also highlights the research progress made in the direction of K mediated signaling cascades.
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Affiliation(s)
- Riya Johnson
- Plant Physiology and Biochemistry Division, Department of Botany, University of Calicut, C.U. Campus P.O, Kerala, 673635, India
| | | | - Md Shahadat Hossen
- Independent Researcher, C/O: Prof. Mirza Hasanuzzaman, Department of Agronomy, Sher-e-Bangla Agricultural University, Dhaka-1207, Bangladesh
| | - Vinod Kumar
- Department of Botany, Government Degree College, Ramban, 182144, Jammu and Kashmir, India
| | - A M Shackira
- Department of Botany, Sir Syed College, Taliparamba, Kannur, Kerala, 670142, India
| | - Jos T Puthur
- Plant Physiology and Biochemistry Division, Department of Botany, University of Calicut, C.U. Campus P.O, Kerala, 673635, India
| | - Gholamreza Abdi
- Department of Biotechnology, Persian Gulf Research Institute, Persian Gulf University, Bushehr 75169, Iran
| | - Mohammad Sarraf
- Department of Horticulture Science, Shiraz Branch, Islamic Azad University, Shiraz, Iran.
| | - Mirza Hasanuzzaman
- Department of Agronomy, Faculty of Agriculture, Sher-e-Bangla Agricultural University, Dhaka, 1207, Bangladesh.
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Siddiqui MH, Mukherjee S, Kumar R, Alansi S, Shah AA, Kalaji HM, Javed T, Raza A. Potassium and melatonin-mediated regulation of fructose-1,6-bisphosphatase (FBPase) and sedoheptulose-1,7- bisphosphatase (SBPase) activity improve photosynthetic efficiency, carbon assimilation and modulate glyoxalase system accompanying tolerance to cadmium stress in tomato seedlings. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2022; 171:49-65. [PMID: 34971955 DOI: 10.1016/j.plaphy.2021.12.018] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Revised: 12/07/2021] [Accepted: 12/17/2021] [Indexed: 06/14/2023]
Abstract
The mechanism of the combined action of potassium (K) and melatonin (Mel) in modulating tolerance to cadmium (Cd) stress in plants is not well understood. The present study reveals the synergistic role of K and Mel in enhancing physiological and biochemical mechanisms of Cd stress tolerance in tomato seedlings. The present findings reveal that seedlings subjected to Cd toxicity exhibited disturbed nutrients balance [nitrogen (N) and potassium (K)], chlorophyll (Chl) biosynthesis [reduced δ-aminolevulinic acid (δ-ALA) content and δ-aminolevulinic acid dehydratase (δ-ALAD) activity], pathway of carbon fixation [reduced fructose-1,6-bisphosphatase (FBPase) and sedoheptulose-1,7- bisphosphatase (SBPase) activity] and photosynthesis process in tomato seedlings. However, exogenous application of K and Mel alone as well as together improved physiological and biochemical mechanisms in tomato seedlings, but their combined application proved best by efficiently improving nutrient uptake, photosynthetic pigments biosynthesis (increased Chl a and b, and Total Chl), carbon flow in Calvin cycle, activity of Rubisco, carbonic anhydrase activity, and accumulation of total soluble carbohydrates content in seedlings under Cd toxicity. Furthermore, the combined treatment of K and Mel suppressed overproduction of reactive oxygen species (hydrogen peroxide and superoxide), Chl degradation [reduced chlorophyllase (Chlase) activity] and methylglyoxal content in Cd-stressed tomato seedlings by upregulating glyoxalase (increased glyoxalase I and glyoxalase II activity) and antioxidant systems (increased ascorbate-glutathione metabolism). Thus, the present study provides stronger evidence that the co-application of K and Mel exhibited synergistic roles in mitigating the toxic effect of Cd stress by increasing glyoxalase and antioxidant systems and also by improving photosynthetic efficiency in tomato seedlings.
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Affiliation(s)
- Manzer H Siddiqui
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia.
| | - Soumya Mukherjee
- Department of Botany, Jangipur College, University of Kalyani, West Bengal, 742213, India
| | - Ritesh Kumar
- Department of Agronomy, Kansas State University, Manhattan, KS, 66506, USA
| | - Saleh Alansi
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Anis Ali Shah
- Department of Botany, Division of Science and Technology University of Education, Lahore
| | - Hazem M Kalaji
- Department of Plant Physiology, Institute of Biology, Warsaw University of Life Sciences SGGW, 159 Nowoursynowska 159, 02-776, Warsaw, Poland
| | - Talha Javed
- College of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, 350002, China; Departemnet of Agronomy, University of Agriculture Faisalabad, Faisalabad-38040, Pakistan
| | - Ali Raza
- Fujian Provincial Key Laboratory of Crop Molecular and Cell Biology, Oil Crops Research Institute, Center of Legume Crop Genetics and Systems Biology/College of Agriculture, Fujian Agriculture and Forestry University (FAFU), Fuzhou, 350002, China
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14
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Heavy metal and organic pollutants removal from water using bilayered polydopamine composite of sandwiched graphene Nanosheets: One solution for two obstacles. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2021.119711] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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15
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Mubeen S, Shahzadi I, Akram W, Saeed W, Yasin NA, Ahmad A, Shah AA, Siddiqui MH, Alamri S. Calcium Nanoparticles Impregnated With Benzenedicarboxylic Acid: A New Approach to Alleviate Combined Stress of DDT and Cadmium in Brassica alboglabra by Modulating Bioacummulation, Antioxidative Machinery and Osmoregulators. FRONTIERS IN PLANT SCIENCE 2022; 13:825829. [PMID: 35356123 PMCID: PMC8959818 DOI: 10.3389/fpls.2022.825829] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Accepted: 01/18/2022] [Indexed: 05/04/2023]
Abstract
At present, the alleviation of stress caused by climate change and environmental contaminants is a crucial issue. Dichlorodiphenyltrichloroethane (DDT) is a persistent organic pollutant (POP) and an organochlorine, which causes significant health problems in humans. The stress caused by cadmium (Cd) and the toxicity of DDT have direct effects on the growth and yield of crop plants. Ultimately, the greater uptake and accumulation of DDT by edible plants affects human health by contaminating the food chain. The possible solution to this challenging situation is to limit the passive absorption of POPs into the plants. Calcium (Ca) is an essential life component mandatory for plant growth and survival. This study used impregnated Ca (BdCa) of benzenedicarboxylic acid (Bd) to relieve abiotic stress in plants of Brassica alboglabra. BdCa mitigated the deleterious effects of Cd and reduced DDT bioaccumulation. By increasing the removal efficacy (RE) up to 256.14%, BdCa greatly decreased pollutant uptake (Cd 82.37% and DDT 93.64%) and supported photosynthetic machinery (86.22%) and antioxidant enzyme defenses (264.73%), in applied plants. Exogenously applied Bd also successfully improved the antioxidant system and the physiochemical parameters of plants. However, impregnation with Ca further enhanced plant tolerance to stress. This novel study revealed that the combined application of Ca and Bd could effectively relieve individual and combined Cd stress and DDT toxicity in B. alboglabra.
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Affiliation(s)
- Samavia Mubeen
- State Key Laboratory for Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Iqra Shahzadi
- Hubei Key Laboratory of Biomass Resource Chemistry and Environmental Biotechnology, Hubei International Scientific and Technological Cooperation Base of Sustainable Resource and Energy, Hubei Engineering Center of Natural Polymersbased Medical Materials, School of Resource and Environmental Science, Wuhan University, Wuhan, China
| | - Waheed Akram
- Department of Plant Pathology, Institute of Agricultural Sciences, University of the Punjab, Lahore, Pakistan
| | - Wajid Saeed
- Key Laboratory of Crop Cultivation and Farming System, Agriculture College, Guangxi University, Nanning, China
| | - Nasim Ahmad Yasin
- Senior Superintendent Garden, University of the Punjab, Lahore, Pakistan
- Guangdong Key Laboratory for New Technology Research of Vegetables/Vegetable Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, China
| | - Aqeel Ahmad
- Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, China
- *Correspondence: Aqeel Ahmad,
| | - Anis Ali Shah
- Department of Botany, Division of Science and Technology, University of Education, Lahore, Pakistan
- Anis Ali Shah,
| | - Manzer H. Siddiqui
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Saud Alamri
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, Saudi Arabia
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de Anicésio ÉCA, Monteiro FA. Potassium reduces oxidative stress in tanzania guinea grass under cadmium toxicity. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:1184-1198. [PMID: 34350569 DOI: 10.1007/s11356-021-15620-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Accepted: 07/20/2021] [Indexed: 06/13/2023]
Abstract
Plants used for phytoextraction of metals need to tolerate toxicity conditions. Potassium (K) participates in physiological and biochemical processes that can alleviate toxicity by heavy metals, including cadmium (Cd). This study aimed to evaluate the effect of K on photosynthesis and on the changes in the antioxidant system of tanzania guinea grass [Panicum maximum Jacq. cv. Tanzania (syn. Megathyrsus maximus (Jacq,) B.K. Simon & S.W.L. Jacobs)] under Cd toxicity. Plants were grown in a greenhouse, in nutrient solution, in a randomized complete block design, arranged in a 3 × 4 factorial, with three replications. Plants were supplied with three K levels (0.4 [K deficiency], 6.0, and 11.6 mmol L-1) and exposed to four Cd levels (0.0, 0.5, 1.0, and 1.5 mmol L-1). Two plant growth periods were evaluated. High Cd level (1.5 mmol L-1) led to a reduction in net photosynthesis (76%) by causing low stomatal conductance and losses in quantum efficiency of photosystem II. However, high K supply (11.6 mmol L-1) increased the net photosynthesis by 15% in plants exposed to 1.0 mmol L-1 Cd, due to upregulation of proline synthesis. Cd toxicity resulted in increases in lipid peroxidation and hydrogen peroxide concentration (35 and 50%; 25 and 30%, at first and second harvest, respectively) and reduction by 80-100% in activity of the antioxidant enzymes: superoxide dismutase, catalase, ascorbate peroxidase, guaiacol peroxidase, and glutathione reductase in the shoots of the grass. However, the high K supply (11.6 mmol L-1) increased the activity of these enzymes (about 50-75%) and reduced lipid peroxidation (36%), restoring cellular homeostasis. Moreover, high K supply promoted a 25% increase in spermidine and spermine concentrations in the shoots. Therefore, K reduced the Cd-induced oxidative stress and increased the net photosynthesis in tanzania guinea grass by increasing the activity of antioxidant enzymes and proline and polyamines synthesis, which enhances the tolerance of this grass to Cd.
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Affiliation(s)
- Éllen Cristina Alves de Anicésio
- Soil Science Department, University of São Paulo, "Luiz de Queiroz" College of Agriculture (ESALQ/USP), Pádua Dias Avenue, # 11, Zip Code 13418-900 Piracicaba, São Paulo, Brazil
| | - Francisco Antonio Monteiro
- Soil Science Department, University of São Paulo, "Luiz de Queiroz" College of Agriculture (ESALQ/USP), Pádua Dias Avenue, # 11, Zip Code 13418-900 Piracicaba, São Paulo, Brazil.
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Min T, Luo T, Chen L, Lu W, Wang Y, Cheng L, Ru S, Li J. Effect of dissolved organic matter on the phytoremediation of Cd-contaminated soil by cotton. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 226:112842. [PMID: 34624530 DOI: 10.1016/j.ecoenv.2021.112842] [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: 07/24/2021] [Revised: 09/14/2021] [Accepted: 09/26/2021] [Indexed: 06/13/2023]
Abstract
Dissolved organic matter (DOM) assists in the phytoremediation of heavy-metal-contaminated soils, but the effect of synergistic remediation of DOM on plants is unclear. This study investigated the effect of two DOM sources (cotton straw (CM) DOM and farmyard manure (FM) DOM) on cadmium (Cd) accumulation in Cd-contaminated soil by cotton and evaluated the phytoremediation effect of DOM. The results showed that adding DOM reduced the available nitrogen and increased organic matter, available phosphorus and available potassium. Applying DOM increased the proportions of Cd acid soluble fractions and reduced the proportions of Cd residual fractions by 1-7%. DOM application increased root length, root surface area and root volume compared to the control and had a promoting or inhibiting effect on cotton biomass, depending on the soil Cd concentration. Furthermore, applying DOM improved the Cd content and bioconcentration factor of cotton. The lower the molecular weight, hydrophilic components and aromaticity of DOM, the more conducive to Cd accumulation is in cotton. The correlation and random forest analyses also showed that CM showed high remediation potential. According to our study, DOM can improve the phytoremediation efficiency of cotton, especially in low-concentration contaminated soils. This study provides a basis for applying DOM in the phytoremediation of Cd-contaminated soils.
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Affiliation(s)
- Tao Min
- The Key Laboratory of Oasis Eco-agriculture, Xinjiang Production and Construction Corps/College of Agronomy, Shihezi University, Xinjiang, Shihezi, China
| | - Tong Luo
- The Key Laboratory of Oasis Eco-agriculture, Xinjiang Production and Construction Corps/College of Agronomy, Shihezi University, Xinjiang, Shihezi, China
| | - Lili Chen
- The Key Laboratory of Oasis Eco-agriculture, Xinjiang Production and Construction Corps/College of Agronomy, Shihezi University, Xinjiang, Shihezi, China
| | - Weidan Lu
- The Key Laboratory of Oasis Eco-agriculture, Xinjiang Production and Construction Corps/College of Agronomy, Shihezi University, Xinjiang, Shihezi, China
| | - Yan Wang
- The Key Laboratory of Oasis Eco-agriculture, Xinjiang Production and Construction Corps/College of Agronomy, Shihezi University, Xinjiang, Shihezi, China
| | - Liyang Cheng
- The Key Laboratory of Oasis Eco-agriculture, Xinjiang Production and Construction Corps/College of Agronomy, Shihezi University, Xinjiang, Shihezi, China
| | - Sibo Ru
- The Key Laboratory of Oasis Eco-agriculture, Xinjiang Production and Construction Corps/College of Agronomy, Shihezi University, Xinjiang, Shihezi, China
| | - Junhua Li
- The Key Laboratory of Oasis Eco-agriculture, Xinjiang Production and Construction Corps/College of Agronomy, Shihezi University, Xinjiang, Shihezi, China.
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Ahmad A, Yasin NA, Khan WU, Akram W, Wang R, Shah AA, Akbar M, Ali A, Wu T. Silicon assisted ameliorative effects of iron nanoparticles against cadmium stress: Attaining new equilibrium among physiochemical parameters, antioxidative machinery, and osmoregulators of Phaseolus lunatus. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2021; 166:874-886. [PMID: 34237605 DOI: 10.1016/j.plaphy.2021.06.016] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Accepted: 06/10/2021] [Indexed: 05/28/2023]
Abstract
Currently, producing safe agricultural commodities from the crop plants cultivated in the soil with increasing heavy metal toxicity is a gigantic challenge in front of researchers. Heavy metals are absorbed and translocated in the crop plants and then transferred to every downstream consumer of the food chain, including humans, causing serious disorders and ailments. The current research presents a combined schematic application of iron nanoparticles (Fe-NPs) and/or silicon (Si), to mitigate cadmium (Cd) stress in Lima bean (Phaseolus lunatus). It was noted that Cd-induced toxicity curtailed growth, antioxidative machinery, glyoxalase system and nutrient uptake of the plants. Furthermore, the physiochemical features of Cd stressed plants, including carotenoids, chlorophyll, photochemical quenching, photosynthetic efficiency, and leaf relative water contents, were improved by the combined application of Si and Fe-NPs. Moreover, higher levels of malondialdehyde (MDA), methylglyoxal (MG), hydrogen peroxide (H2O2), and electrolyte leakage (EL) were observed in Cd stressed plants. Nevertheless, the independent treatment or combined application of Si and/or Fe-NPs attenuated the adversative effects of Cd on the aforementioned growth attributes. Furthermore, Si and Fe-NPs defended plants from the injurious effects of MG by improving the activities of the glyoxalase enzyme. The Si and Fe-NPs reduced Cd contents but at the same time improved uptake and accumulation of nutrients in treated plants exposed to the Cd regime. This study highlights that Si and Fe-NPs have enormous potential to mitigate Cd-induced phytotoxicity by declining Cd uptake and improving the growth attributes of plants if applied in combination.
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Affiliation(s)
- Aqeel Ahmad
- Vegetable Research Institute, Guangdong Academy of Agricultural Sciences / Guangdong Key Laboratory for New Technology Research of Vegetables, Guangzhou, 510640, China
| | | | - Waheed Ullah Khan
- Department of Environmental Science, The Islamia University of Bahawalpur, Pakistan
| | - Waheed Akram
- Vegetable Research Institute, Guangdong Academy of Agricultural Sciences / Guangdong Key Laboratory for New Technology Research of Vegetables, Guangzhou, 510640, China
| | - Rui Wang
- Vegetable Research Institute, Guangdong Academy of Agricultural Sciences / Guangdong Key Laboratory for New Technology Research of Vegetables, Guangzhou, 510640, China
| | - Anis Ali Shah
- Department of Botany, University of Narowal, Narowal, Pakistan
| | - Muhammad Akbar
- Department of Botany, University of Gujrat, Gujrat, Pakistan
| | - Aamir Ali
- Department of Botany, University of Sargodha, Sargodha, Pakistan
| | - Tingquan Wu
- Vegetable Research Institute, Guangdong Academy of Agricultural Sciences / Guangdong Key Laboratory for New Technology Research of Vegetables, Guangzhou, 510640, China.
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Ali S, Tyagi A, Bae H. Ionomic Approaches for Discovery of Novel Stress-Resilient Genes in Plants. Int J Mol Sci 2021; 22:7182. [PMID: 34281232 PMCID: PMC8267685 DOI: 10.3390/ijms22137182] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Revised: 06/25/2021] [Accepted: 06/29/2021] [Indexed: 01/03/2023] Open
Abstract
Plants, being sessile, face an array of biotic and abiotic stresses in their lifespan that endanger their survival. Hence, optimized uptake of mineral nutrients creates potential new routes for enhancing plant health and stress resilience. Recently, minerals (both essential and non-essential) have been identified as key players in plant stress biology, owing to their multifaceted functions. However, a realistic understanding of the relationship between different ions and stresses is lacking. In this context, ionomics will provide new platforms for not only understanding the function of the plant ionome during stresses but also identifying the genes and regulatory pathways related to mineral accumulation, transportation, and involvement in different molecular mechanisms under normal or stress conditions. This article provides a general overview of ionomics and the integration of high-throughput ionomic approaches with other "omics" tools. Integrated omics analysis is highly suitable for identification of the genes for various traits that confer biotic and abiotic stress tolerance. Moreover, ionomics advances being used to identify loci using qualitative trait loci and genome-wide association analysis of element uptake and transport within plant tissues, as well as genetic variation within species, are discussed. Furthermore, recent developments in ionomics for the discovery of stress-tolerant genes in plants have also been addressed; these can be used to produce more robust crops with a high nutritional value for sustainable agriculture.
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Affiliation(s)
- Sajad Ali
- Department of Biotechnology, Yeungnam University, Gyeongsan 38541, Korea;
| | - Anshika Tyagi
- National Institute for Plant Biotechnology, New Delhi 110012, India;
| | - Hanhong Bae
- Department of Biotechnology, Yeungnam University, Gyeongsan 38541, Korea;
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Magnetic Field Stimulation Effect on Germination and Antioxidant Activities of Presown Hybrid Seeds of Sunflower and Its Seedlings. J FOOD QUALITY 2021. [DOI: 10.1155/2021/5594183] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Magnetic field biostimulation plays a significant role in enhancing the germination of seeds and increasing the metabolic rate. The low magnetic field effect for long exposure time and its effect on antioxidant profiling have not been studied. Therefore, in the recent findings, the static magnetic field’s impact on sunflower seeds subjected to the magnetic field at varying intensity (millitesla) for different exposure times was examined. The effectiveness of magnetic biostimulation on presown sunflower seeds, growth parameters of seedlings (biomass, root and shoot length, fresh and dry weight of roots, shoots, leaf, and height of plants), and antioxidant activities were also studied. It has been revealed that magnetic treatment at 50 mT/45 min greatly influenced the growth parameters, including mean germination growth (100 ± 0.02) and final emergence rate. Concerning the antioxidant parameters, seed variety FH620 at 500 µg/µL concentration showed significant results compared to other varieties. FTIR was employed to determine the conformational changes and functional groups of organic compounds from sunflower seedlings. Tocopherol analysis by HPLC showed that magnetic treatment at 50 mT/45 min had a higher concentration of vitamin E compared to the control group. These modifications indicated that magnetic field induction enhanced seeds’ inner energy that led to seedlings’ growth and development enhancement. Besides, magnetic field pretreatment has been shown to have a beneficial influence on sunflower seeds and their bioactive compounds. Future studies should be focused on growth characteristics at the field level and yield attributes.
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Ahmad A, Shahzadi I, Mubeen S, Yasin NA, Akram W, Khan WU, Wu T. Karrikinolide alleviates BDE-28, heat and Cd stressors in Brassica alboglabra by correlating and modulating biochemical attributes, antioxidative machinery and osmoregulators. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 213:112047. [PMID: 33601172 DOI: 10.1016/j.ecoenv.2021.112047] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Revised: 02/04/2021] [Accepted: 02/08/2021] [Indexed: 05/04/2023]
Abstract
In this study, we have evaluated the role of karrikin (KAR1) against the absorption and translocation of a persistent organic pollutant (POP), 2,4,4'-Tribromodiphenyl ether (BDE-28) in plants, in the presence of two other stressors, cadmium (Cd) and high temperature. Furthermore, it correlates the physiological damages of Brassica alboglabra with the three stresssors separately. The results revealed that the post-germination application of KAR1 successfully augmented the growth (200%) and pertinent physiochemical parameters of B. alboglabra. KAR1 hindered air absorption of BDE-28 in plant tissues, and reduced its translocation coefficient (TF). Moreover, BDE-28 was the most negatively correlated (-0.9) stressor with chlorophyll contents, while the maximum mitigation by KAR1 was also achieved agaist BDE-28. The effect of temperature was more severe on soluble sugars (0.51), antioxidative machinery (-0.43), and osmoregulators (0.24). Cd exhibited a stronger inverse interrelation with the enzymatic antioxidant cascade. Application of KAR1 mitigated the deleterious effects of Cd and temperature stress on plant physiological parameters along with reduced aero-concentration factor, TF, and metal tolerance index. The phytohormone reduced lipid peroxidation by decreasing synthesis of ROS and persuading its breakdown. The stability of cellular membranes was perhaps due to the commotion of KAR1 as a growth-promoting phytohormone. In the same way, KAR1 supplementation augmented the membrane stability index, antioxidant defense factors, and removal efficiency of the pollutants. Consequently, the exogenously applied KAR1 can efficiently alleviate Cd stress, heat stress, and POP toxicity.
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Affiliation(s)
- Aqeel Ahmad
- Vegetable Research Institute, Guangdong Academy of Agricultural Sciences/Guangdong Key Laboratory for New Technology Research of Vegetables, Guangzhou 510640, China
| | - Iqra Shahzadi
- School of Resource and Environmental Science, Wuhan University, Wuhan 430072, Hubei, China
| | - Samavia Mubeen
- State Key Laboratory for Biocontrol, School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, China
| | - Nasim Ahmad Yasin
- Senior Superintendent Gardens, RO II Wing, University of the Punjab, Lahore, Punjab, Pakistan
| | - Waheed Akram
- Vegetable Research Institute, Guangdong Academy of Agricultural Sciences/Guangdong Key Laboratory for New Technology Research of Vegetables, Guangzhou 510640, China
| | - Waheed Ullah Khan
- Senior Superintendent Gardens, RO II Wing, University of the Punjab, Lahore, Punjab, Pakistan
| | - Tingquan Wu
- Vegetable Research Institute, Guangdong Academy of Agricultural Sciences/Guangdong Key Laboratory for New Technology Research of Vegetables, Guangzhou 510640, China.
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Interactive effect of potassium and cadmium on growth, root morphology and chlorophyll a fluorescence in tomato plant. Sci Rep 2021; 11:5384. [PMID: 33686172 PMCID: PMC7940648 DOI: 10.1038/s41598-021-84990-4] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Accepted: 02/15/2021] [Indexed: 02/07/2023] Open
Abstract
A hydroponic experiment was conducted to evaluate the role of potassium (K) in tomato plant growth exposed to cadmium (Cd) stress. In this work, the effects of three potassium nutrition regimes (155, 232 and 310 ppm of K) combined with Cd at different levels (0, 12 and 25 µM of CdCl2) on chlorophyll content index, root and shoot dry weights, root morphology, chlorophyll a fluorescence and translocation factor were analyzed. The results showed a negative effect of cadmium, at different concentrations, on all these parameters. However, optimization of K nutrition has shown promising results by limiting the negative effect of Cd. A positive effect of the high concentration of K (310 ppm) was observed on leaf chlorophyll content and chlorophyll a fluorescence compared to 232 and 155 ppm under Cd stress. K supply improved the electron transport at PSI side indicated by the increase in the amplitude of the I-P phase of OJIP transient. Also, K at a concentration of 310 ppm significantly reduced Cd translocation from root to shoot and improved root and shoot growth parameters in the presence of Cd. K supplementation can reduce the negative effect of Cd by improving photosynthesis and promoting chlorophyll synthesis. The optimization of nutrients composition and concentration might be a good strategy to reduce the impact of Cd on plant growth and physiology.
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Shah AA, Aslam S, Akbar M, Ahmad A, Khan WU, Yasin NA, Ali B, Rizwan M, Ali S. Combined effect of Bacillus fortis IAGS 223 and zinc oxide nanoparticles to alleviate cadmium phytotoxicity in Cucumis melo. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2021; 158:1-12. [PMID: 33278679 DOI: 10.1016/j.plaphy.2020.11.011] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2020] [Accepted: 11/09/2020] [Indexed: 05/01/2023]
Abstract
Cadmium (Cd), prevailing in most of the agricultural lands of the world contaminates food chain, thereby causing several health implications. It has become the main heavy metal contaminant in most of the agricultural lands of Pakistan due to the widespread use of phosphate fertilizers besides application of irrigation water contaminated with industrial and mining effluents. Plant growth promoting bacteria (PGPB) are capable to enhance growth and metal stress tolerance in supplemented plants. Zinc oxide nanoparticles (ZnO-NPs) are capable to alleviate various abiotic stresses when applied to plants. During current research, the efficacy of single and combined application of Bacillus fortis IAGS 223 and ZnO-NPs was evaluated for alleviation of Cd (75 mg kg-1) induced phytotoxicity in Cucumis melo plants. For this purpose, C. melo plants, subjected to Cd stress were treated with B. fortis IAGS 223 and ZnO-NPs (20 mg kg-1), either alone or in combination. The growth relevant characteristics including photosynthetic pigments, hydrogen peroxide (H2O2), malondialdehyde (MDA), and activities of antioxidative enzymes as well as Zn and Cd contents in treated plants were examined. The individual application of ZnO-NPs and B. fortis IAGS 223 slightly enhanced all the above-mentioned growth characteristics in plants under Cd stress. However, the combined application of ZnO-NPs and B. fortis IAGS-223 considerably modulated the activity of antioxidant enzymes besides upgradation of the biochemicals and growth parameters of Cd stressed plants. The decreased amount of stress markers such as H2O2, and MDA in addition with reduction of Cd contents was observed in shoots of ZnO-NPs and B. fortis IAGS-223 applied plants. B. fortis IAGS-223 inoculated plants supplemented with ZnO-NPs, exhibited reduced amount of Cd as well as protein bound thiols and non-protein bound thiols under Cd stress. Subsequently, the reduced Cd uptake improved growth of ZnO-NPs and B. fortis IAGS-223 applied plants. Henceforth, field trials may be performed to formulate appropriate combination of ZnO-NPs and B. fortis IAGS-223 to acquire sustainable crop production under Cd stress.
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Affiliation(s)
- Anis Ali Shah
- Department of Botany, University of Narowal, Narowal, Pakistan
| | - Sonia Aslam
- Department of Botany, University of Narowal, Narowal, Pakistan
| | | | - Aqeel Ahmad
- Guangdong Key Laboratory for New Technology Research of Vegetables/Vegetable Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640, China
| | - Waheed Ullah Khan
- Department of Environmental Sciences, University College of Agriculture and Environmental Sciences, The Islamia University of Bahawalpur, Pakistan
| | | | - Basharat Ali
- Department of Microbiology and Molecular Genetics, University of the Punjab, Lahore, Pakistan
| | - Muhammad Rizwan
- Department of Environmental Science and Engineering, Government College University, Faisalabad, Pakistan
| | - Shafaqat Ali
- Department of Environmental Science and Engineering, Government College University, Faisalabad, Pakistan
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24
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Potassium: A key modulator for cell homeostasis. J Biotechnol 2020; 324:198-210. [PMID: 33080306 DOI: 10.1016/j.jbiotec.2020.10.018] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2020] [Revised: 09/28/2020] [Accepted: 10/14/2020] [Indexed: 02/06/2023]
Abstract
Potassium (K) is the most vital and abundant macro element for the overall growth of plants and its deficiency or, excess concentration results in many diseases in plants. It is involved in regulation of many crucial roles in plant development. Depending on soil-root interactions, complex soil dynamics often results in unpredictable availability of the elements. Based on the importance index, K is considered to be the second only to nitrogen for the overall growth of plants. More than 60 enzymes within the plant system depend on K for its activation, in which K act as a key regulator. K helps plants to resist several abiotic and biotic stresses in the environment. We have reviewed the research progress about K's role in plants covering various important considerations of K highlighting the effects of microbes on soil K+; K and its contribution to adsorbed dose in plants; the importance of K+ deficiency; physiological functions of K+ transporters and channels; and interference of abiotic stressor in the regulatory role of K. This review further highlights the scope of future research regarding K.
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25
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Li X, Xiao J, Salam MMA, Ma C, Chen G. Impacts of bamboo biochar on the phytoremediation potential of Salix psammophila grown in multi-metals contaminated soil. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2020; 23:387-399. [PMID: 33174478 DOI: 10.1080/15226514.2020.1816893] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
We investigated the effects of bamboo biochar (BBC) as soil amendment on growth and phytoremediation potential of Salix psammophila in soil heavily polluted by Cd and Zn. Bamboo biochar was added to soil at ratios ranging from 1 to 7% (w/w), which significantly increased the organic matter, available potassium (K) content, while decreased the hydrolyzable nitrogen (N) content and the levels of total and bioavailable HMs in soil. The BBC amendment at ratios of 1% to 5% showed little effect on growth of plant, whereas at 7% ratio significantly decreased biomass compared to the control. BBC amendment stimulated the accumulation of Cu, Cd and Zn in plant tissues, meanwhile, Cd and Zn accumulation were more evident, especially in the BBC-3% treatment. BBC amendment improved the TF and BCF values of Cd, Zn and Cu compared to control. Higher BCF for Cd (BCF >1) and TF for Zn (TF >1) values indicate Salix psammophila have considerable potential for phytoremediation efficiency in BBC amended soil treatment. This study provides practical evidence of the efficient BBC-assisted phytoremediation capability of Salix psammophila and highlights its potential as a viable and inexpensive approach for in situ remediation.
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Affiliation(s)
- Xiaogang Li
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou, China
| | - Jiang Xiao
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou, China
| | - Mir Md Abdus Salam
- School of Forest Sciences, University of Eastern Finland, Joensuu, Finland
| | - Chuanxin Ma
- Department of Analytical Chemistry, The Connecticut Agricultural Experiment Station, New Haven, CT, USA
| | - Guangcai Chen
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou, China
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26
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Salam MMA, Mohsin M, Pulkkinen P, Pelkonen P, Pappinen A. Effects of soil amendments on the growth response and phytoextraction capability of a willow variety (S. viminalis × S. schwerinii × S. dasyclados) grown in contaminated soils. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 171:753-770. [PMID: 30660969 DOI: 10.1016/j.ecoenv.2019.01.045] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2018] [Revised: 01/09/2019] [Accepted: 01/10/2019] [Indexed: 06/09/2023]
Abstract
This study was conducted to evaluate the effects of lime and bisphosphonates (BPs) such as N10O chelate amendment on the growth, physiological and biochemical parameters, and phytoextraction potential of the willow variety Klara (Salix viminalis × S. schwerinii × S. dasyclados) grown in soils heavily contaminated with copper (Cu), nickel (Ni) and zinc (Zn). The plants were irrigated with tap or processed water (mine wastewater). The results suggest that the combined effects of the contaminated soil and processed water inhibited growth parameters, gas exchange parameters and chlorophyll fluorescence (Fv/Fm) values. In contrast, malondialdehyde (MDA) content, organic acids, total phenolic and total flavonoid contents, and the accumulation of metals/metalloids in the plant tissues were increased compared to the control. When the soil was supplemented with lime and N10O; growth, physiological, biochemical parameters, and resistance capacity were significantly higher compared to unamended soil treatments, especially in the contaminated soil treatments. The combined lime‒ and N10O‒amended soil treatment produced higher growth rates, resistance capacity, photosynthesis rates and phytoextraction efficiency levels relative to either the lime‒amended or the N10O‒amended soil treatments. This study provides practical evidence of the efficient chelate‒assisted phytoextraction capability of Klara and highlights its potential as a viable and inexpensive novel approach for in situ remediation of Cu‒, Ni‒ and Zn‒contaminated soils and mine wastewaters.
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Affiliation(s)
- Mir Md Abdus Salam
- School of Forest Sciences, University of Eastern Finland, Yliopistokatu 7, P.O. Box 111, 80100 Joensuu, Finland.
| | - Muhammad Mohsin
- School of Forest Sciences, University of Eastern Finland, Yliopistokatu 7, P.O. Box 111, 80100 Joensuu, Finland
| | - Pertti Pulkkinen
- Natural Resources Institute Finland (Luke), Haapastensyrjä Research Unit, Haapastensyrjäntie 34, FIN-12600 Läyliäinen, Finland
| | - Paavo Pelkonen
- School of Forest Sciences, University of Eastern Finland, Yliopistokatu 7, P.O. Box 111, 80100 Joensuu, Finland
| | - Ari Pappinen
- School of Forest Sciences, University of Eastern Finland, Yliopistokatu 7, P.O. Box 111, 80100 Joensuu, Finland
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27
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Shamshad S, Shahid M, Dumat C, Rafiq M, Khalid S, Sabir M, Missen MMS, S Shah N, Farooq ABU, Murtaza B, Niazi NK. A multivariate analysis of health risk assessment, phytoremediation potential, and biochemical attributes of Spinacia oleracea exposed to cadmium in the presence of organic amendments under hydroponic conditions. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2019; 21:461-470. [PMID: 30821474 DOI: 10.1080/15226514.2018.1540539] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Cadmium (Cd) phytoremediation potential and its accumulation in edible and nonedible plant tissues is the function of various biochemical processes taking place inside plants. This study assessed the impact of organic ligands on Cd phyto uptake and different biophysiochemical processes of Spinacia oleracea L., and associated health hazards. Plants were exposed to Cd alone and chelated with citric acid (CA) and ethylenediaminetetraacetic acid (EDTA). Results revealed that the effect of Cd on lipid peroxidation, H2O2 production and pigment contents varied greatly with its applied level and the type of organic ligand. Moreover, the effect was more prominent in root tissues than leaf tissues and for high concentrations of Cd and organic ligands. Cadmium accumulation increased by 90 and 74% in roots and leaves, respectively, with increasing Cd levels (25-100 µM). Cadmium exposure at high levels caused lipid peroxidation in roots only. Application of both CA and EDTA slightly diminished Cd toxicity with respect to pigment contents, lipid peroxidation and hydrogen peroxide (H2O2) contents. Hazard quotient (HQ) of Cd was <1.00 for all the treatments. Under nonlinear effect of treatments, multivariate analysis can be an effective tool to trace overall effects/trends.
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Affiliation(s)
- Saliha Shamshad
- a Department of Environmental Sciences , COMSATS University Islamabad , Vehari , Pakistan
| | - Muhammad Shahid
- a Department of Environmental Sciences , COMSATS University Islamabad , Vehari , Pakistan
| | - Camille Dumat
- b Centre d'Etude et de Recherche Travail Organisation Pouvoir (CERTOP) , Université J. Jaurès - Toulouse II , Castanet-Tolosan , France
| | - Marina Rafiq
- a Department of Environmental Sciences , COMSATS University Islamabad , Vehari , Pakistan
| | - Sana Khalid
- a Department of Environmental Sciences , COMSATS University Islamabad , Vehari , Pakistan
| | - Muhammad Sabir
- c Institute of Soil and Environmental Sciences , University of Agriculture Faisalabad , Faisalabad , Pakistan
| | - Malik M S Missen
- d Department of Computer Science and Information Technology , The Islamia University of Bahawalpur , Bahawalpur , Punjab , Pakistan
| | - Noor S Shah
- a Department of Environmental Sciences , COMSATS University Islamabad , Vehari , Pakistan
| | - Abu Bakr Umer Farooq
- a Department of Environmental Sciences , COMSATS University Islamabad , Vehari , Pakistan
| | - Behzad Murtaza
- a Department of Environmental Sciences , COMSATS University Islamabad , Vehari , Pakistan
| | - Nabeel Khan Niazi
- e Institute of Soil and Environmental Sciences , University of Agriculture Faisalabad , Faisalabad , Pakistan
- f Southern Cross GeoScience , Southern Cross University , Lismore , NSW , Australia
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28
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Liu Z, Chen W, He X. Evaluation of hyperaccumulation potentials to cadmium (Cd) in six ornamental species (compositae). INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2019; 20:1464-1469. [PMID: 30652498 DOI: 10.1080/15226514.2018.1501343] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Phytoremediation is considered as a promising soil remediation technique. In the present study, the growth responses, cadmium (Cd) accumulation and uptake capability of six popular compositae species, namely, Taraxacum mongolicum Hand.-Mazz., Tagetes erecta L., Tagetes patula L., Zinnia elegans Jacq., Centaurea cyanus L. and Gerbera jamesonii Bolus under Cd stress were investigated. Among the six compositae species, the growth of T. erecta L. and T. patula L. improved under 10 mg kg-1 Cd exposure in term of the total biomass and height increased along with the increased Cd concentration in soil, and the growth of the two plants had no significant differences at the high Cd concentration (100 mg kg-1), which indicated that they have good tolerance to Cd toxicity. At the same time, the two plants have higher biomass than four other plants. Furthermore, they can accumulate Cd above 100 μg g-1 dry tissue, which is the threshold value of a Cd-hyperaccumulator, and have higher Cd uptake ability, translocation factor (TF) and bioconcentration factor (BCF) values. According to these traits, it was shown that T. erecta L. and T. patula L. had strong tolerance and accumulation capability to Cd, therefore they can become potential hyperaccumulators in phytoremediation of Cd-contaminated soils.
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Affiliation(s)
- Zhouli Liu
- a CAS Key Laboratory of Forest Ecology and Management , Institute of Applied Ecology , Shenyang , China
| | - Wei Chen
- a CAS Key Laboratory of Forest Ecology and Management , Institute of Applied Ecology , Shenyang , China
| | - Xingyuan He
- a CAS Key Laboratory of Forest Ecology and Management , Institute of Applied Ecology , Shenyang , China
- b University of Chinese Academy of Sciences , Beijing , China
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Yasin NA, Akram W, Khan WU, Ahmad SR, Ahmad A, Ali A. Halotolerant plant-growth promoting rhizobacteria modulate gene expression and osmolyte production to improve salinity tolerance and growth in Capsicum annum L. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:23236-23250. [PMID: 29869207 DOI: 10.1007/s11356-018-2381-8] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2018] [Accepted: 05/22/2018] [Indexed: 05/17/2023]
Abstract
Some rhizobacteria have demonstrated a noteworthy role in regulation of plant growth and biomass production under biotic and abiotic stresses. The present study was intended to explicate the ameliorative consequences of halotolerant plant growth-promoting rhizobacteria (HPGPR) on growth of capsicum plants subjected to salt stress. Salt stress was ascertained by supplementing 1 and 2 g NaCl kg-1 soil. The HPGPR positively invigorated growth attributes, chlorophyll, protein contents, and water use efficiency (WUE) of supplemented capsicum plants under salinity stress conditions. Bacillus fortis strain SSB21 caused highest significant increase in shoot length, root length, and fresh and dry biomass production of capsicum plants grown under saline conditions. This multi-trait bacterium also increased biosynthesis of proline and up-regulated the expression profiles of stress related genes including CAPIP2, CaKR1, CaOSM1, and CAChi2. On the other hand, B. fortis strain SSB21 inoculated plants exhibited reduced level of ethylene, lipid peroxidation, and reactive oxygen species (ROS). All these together contribute to activate physiological and biochemical processes involved in the mitigation of the salinity induced stress in capsicum plants.
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Affiliation(s)
- Nasim Ahmad Yasin
- Department of University Gardens, University of the Punjab Lahore, Lahore, Pakistan
| | - Waheed Akram
- Department of University Gardens, University of the Punjab Lahore, Lahore, Pakistan
- College of Plant Sciences and Technology, Huazhong Agricultural University, Wuhan, China
| | - Waheed Ullah Khan
- Department of University Gardens, University of the Punjab Lahore, Lahore, Pakistan.
- College of Earth and Environmental Sciences, University of the Punjab Lahore, Lahore, Pakistan.
| | - Sajid Rashid Ahmad
- College of Earth and Environmental Sciences, University of the Punjab Lahore, Lahore, Pakistan
| | - Aqeel Ahmad
- Department of University Gardens, University of the Punjab Lahore, Lahore, Pakistan
- College of Plant Sciences and Technology, Huazhong Agricultural University, Wuhan, China
| | - Aamir Ali
- Department of Botany, University of Sargodha, Sargodha, Pakistan
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