1
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Zheng T, Zhan J, Yang M, Wang M, Sun W, Shan Z, Chen H. Hemin-induced increase in saponin content contributes to the alleviation of osmotic and cold stress damage to Conyza blinii in a heme oxygenase 1-dependent manner. J Zhejiang Univ Sci B 2021; 22:682-694. [PMID: 34414702 DOI: 10.1631/jzus.b2000697] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Hemin can improve the stress resistance of plants through the heme oxygenase system. Additionally, substances contained in plants, such as secondary metabolites, can improve stress resistance. However, few studies have explored the effects of hemin on secondary metabolite content. Therefore, the effects of hemin on saponin synthesis and the mechanism of plant injury relief by hemin in Conyza blinii were investigated in this study. Hemin treatment promoted plant growth and increased the antioxidant enzyme activity and saponin content of C. blinii under osmotic stress and cold stress. Further study showed that hemin could provide sufficient precursors for saponin synthesis by improving the photosynthetic capacity of C. blinii and increasing the gene expression of key enzymes in the saponin synthesis pathway, thus increasing the saponin content. Moreover, the promotion effect of hemin on saponin synthesis is dependent on heme oxygenase-1 and can be reversed by the inhibitor Zn-protoporphyrin-IX (ZnPPIX). This study revealed that hemin can increase the saponin content of C. blinii and alleviate the damage caused by abiotic stress, and it also broadened the understanding of the relationship between hemin and secondary metabolites in plant abiotic stress relief.
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Affiliation(s)
- Tianrun Zheng
- College of Life Science, Sichuan Agricultural University, Ya'an 625014, China.,Chongqing Academy of Chinese Materia Medica, Chongqing 400065, China
| | - Junyi Zhan
- College of Life Science, Nanjing Agricultural University, Nanjing 210095, China
| | - Ming Yang
- College of Life Science, Sichuan Agricultural University, Ya'an 625014, China
| | - Maojia Wang
- College of Life Science, Sichuan Agricultural University, Ya'an 625014, China
| | - Wenjun Sun
- College of Life Science, Sichuan Agricultural University, Ya'an 625014, China
| | - Zhi Shan
- College of Life Science, Sichuan Agricultural University, Ya'an 625014, China
| | - Hui Chen
- College of Life Science, Sichuan Agricultural University, Ya'an 625014, China.
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2
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Amooaghaie R, Tabatabaei F, Ahadi A. Alterations in HO-1 expression, heme oxygenase activity and endogenous NO homeostasis modulate antioxidant responses of Brassica nigra against nano silver toxicity. JOURNAL OF PLANT PHYSIOLOGY 2018; 228:75-84. [PMID: 29870881 DOI: 10.1016/j.jplph.2018.01.012] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2017] [Revised: 12/04/2017] [Accepted: 01/16/2018] [Indexed: 06/08/2023]
Abstract
Silver nanoparticles (AgNPs) are one of the most widely-used nanomaterials, which are toxic and can cause physiological disorders in plants. The aim of the present study was to investigate whether a possible signaling link between heme oxygenase (HO) and nitric oxide (NO) is implicated in alleviating the toxicity of AgNPs as well as AgNO3. The results showed that exposure to 400 mg L-1 of AgNPs or AgNO3 reduced the chlorophyll content and the growth parameters in Brassica nigra. Data on Ag accumulation as well as the evaluation of lipid peroxidation and the H2O2 content in roots and shoots revealed that AgNP exerted more toxicity than AgNO3. Applying AgNP and AgNO3, respectively, increased HO transcripts by 87.5 and 37.3% and elevated the endogenous NO content 51.8 and 28.5%. The application of both hematin (as an inducer of HO) and sodium nitroprusside (SNP, as a NO donor) reversed the chlorosis and improved plant growth under AgNP and Ag+ ions stresses. Hematin decreased Ag accumulation in plants, indicating that this compound triggered an avoidance mechanism. Hematin and SNP enhanced the activities of antioxidant enzymes and proline accumulation, in parallel to increasing HO transcripts and NO release levels in the roots. ZnPPIX, as the inhibitor of HO, and cPTIO, as the specific NO scavenger, differentially blocked these effects. These findings revealed for the first time that HO might confer an increased tolerance to AgNP by activating the antioxidant systems, which was partially mediated by NO signal.
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Affiliation(s)
- Rayhaneh Amooaghaie
- Biology Department, Science Faculty, Shahrekord University, Shahrekord, Iran.
| | - Fatemeh Tabatabaei
- Biology Department, Science Faculty, Shahrekord University, Shahrekord, Iran
| | - Alimohammad Ahadi
- Genetic Department, Science Faculty, Shahrekord University, Shahrekord, Iran
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3
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Rizwan M, Ali S, Zia Ur Rehman M, Rinklebe J, Tsang DCW, Bashir A, Maqbool A, Tack FMG, Ok YS. Cadmium phytoremediation potential of Brassica crop species: A review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 631-632:1175-1191. [PMID: 29727943 DOI: 10.1016/j.scitotenv.2018.03.104] [Citation(s) in RCA: 190] [Impact Index Per Article: 31.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2018] [Revised: 03/08/2018] [Accepted: 03/09/2018] [Indexed: 05/08/2023]
Abstract
Cadmium (Cd) is a highly toxic metal released into the environment through anthropogenic activities. Phytoremediation is a green technology used for the stabilization or remediation of Cd-contaminated soils. Brassica crop species can produce high biomass under a range of climatic and growing conditions, allowing for considerable uptake and accumulation of Cd, depending on species. These crop species can tolerate Cd stress via different mechanisms, including the stimulation of the antioxidant defense system, chelation, compartmentation of Cd into metabolically inactive parts, and accumulation of total amino-acids and osmoprotectants. A higher Cd-stress level, however, overcomes the defense system and may cause oxidative stress in Brassica species due to overproduction of reactive oxygen species and lipid peroxidation. Therefore, numerous approaches have been followed to decrease Cd toxicity in Brassica species, including selection of Cd-tolerant cultivars, the use of inorganic and organic amendments, exogenous application of soil organisms, and employment of plant-growth regulators. Furthermore, the coupling of genetic engineering with cropping may also help to alleviate Cd toxicity in Brassica species. However, several field studies demonstrated contrasting results. This review suggests that the combination of Cd-tolerant Brassica cultivars and the application of soil amendments, along with proper agricultural practices, may be the most efficient means of the soil Cd phytoattenuation. Breeding and selection of Cd-tolerant species, as well as species with higher biomass production, might be needed in the future when aiming to use Brassica species for phytoremediation.
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Affiliation(s)
- Muhammad Rizwan
- Department of Environmental Sciences and Engineering, Government College University, Allama Iqbal Road, 38000 Faisalabad, Pakistan
| | - Shafaqat Ali
- Department of Environmental Sciences and Engineering, Government College University, Allama Iqbal Road, 38000 Faisalabad, Pakistan
| | - Muhammad Zia Ur Rehman
- Institute of Soil and Environmental Sciences, University of Agriculture, Faisalabad 38040, Pakistan
| | - Jörg Rinklebe
- University of Wuppertal, School of Architecture and Civil Engineering, Institute of Foundation Engineering, Water- and Waste-Management, Soil- and Groundwater-Management, Pauluskirchstraße 7, 42285 Wuppertal, Germany; Department of Environment and Energy, Sejong University, 98 Gunja-Dong, Guangjin-Gu, Seoul, South Korea
| | - Daniel C W Tsang
- Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
| | - Arooj Bashir
- Department of Environmental Sciences and Engineering, Government College University, Allama Iqbal Road, 38000 Faisalabad, Pakistan
| | - Arosha Maqbool
- Department of Environmental Sciences and Engineering, Government College University, Allama Iqbal Road, 38000 Faisalabad, Pakistan
| | - F M G Tack
- Department of Green Chemistry and Technology, Ghent University, Coupure Links 653, 9000 Ghent, Belgium
| | - Yong Sik Ok
- Korea Biochar Research Center, O-Jeong Eco-Resilience Institute (OJERI) & Division of Environmental Science and Ecological Engineering, Korea University, Seoul 02841, Republic of Korea.
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4
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Zhang XD, Meng JG, Zhao KX, Chen X, Yang ZM. Annotation and characterization of Cd-responsive metal transporter genes in rapeseed (Brassica napus). Biometals 2017; 31:107-121. [PMID: 29250721 DOI: 10.1007/s10534-017-0072-4] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2017] [Accepted: 12/14/2017] [Indexed: 01/09/2023]
Abstract
In higher plants, heavy metal transporters are responsible for metal uptake, translocation and homeostasis. These metals include essential metals such as zinc (Zn) or manganese (Mn) and non-essential metals like cadmium (Cd) or lead (Pb). Although a few heavy metal transporters have been well identified in model plants (e.g. Arabidopsis and rice), little is known about their functionality in rapeseed (Brassica napus). B. napus is an important oil crop ranking the third largest sources of vegetable oil over the world. Importantly, B. napus has long been considered as a desirable candidate for phytoremediation owning to its massive dry weight productivity and moderate to high Cd accumulation. In this study, 270 metal transporter genes (MTGs) from B. napus genome were identified and annotated using bioinformatics and high-throughput sequencing. Most of the MTGs (74.8%, 202/270) were validated by RNA-sequencing (RNA-seq) the seedling libraries. Based on the sequence identity, nine superfamilies including YSL, OPT, NRAMP, COPT, ZIP, CDF/MTP, HMA, MRP and PDR have been classified. RNA-sequencing profiled 202 non-redundant MTGs from B. napus seedlings, of which, 108 MTGs were differentially expressed and 62 genes were significantly induced under Cd stress. These differentially expressed genes (DEGs) are dispersed in the rapeseed genome. Some of the genes were well confirmed by qRT-PCR. Analysis of the genomic distribution of MTGs on B. napus chromosomes revealed that their evolutional expansion was probably through localized allele duplications.
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Affiliation(s)
- Xian Duo Zhang
- Department of Biochemistry and Molecular Biology, College of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Jin Guo Meng
- Department of Biochemistry and Molecular Biology, College of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Kai Xuan Zhao
- Department of Biochemistry and Molecular Biology, College of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Xi Chen
- Department of Biochemistry and Molecular Biology, College of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Zhi Min Yang
- Department of Biochemistry and Molecular Biology, College of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, China.
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Mourato MP, Moreira IN, Leitão I, Pinto FR, Sales JR, Martins LL. Effect of Heavy Metals in Plants of the Genus Brassica. Int J Mol Sci 2015; 16:17975-98. [PMID: 26247945 PMCID: PMC4581231 DOI: 10.3390/ijms160817975] [Citation(s) in RCA: 90] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2015] [Revised: 07/13/2015] [Accepted: 07/27/2015] [Indexed: 11/16/2022] Open
Abstract
Several species from the Brassica genus are very important agricultural crops in different parts of the world and are also known to be heavy metal accumulators. There have been a large number of studies regarding the tolerance, uptake and defense mechanism in several of these species, notably Brassica juncea and B. napus, against the stress induced by heavy metals. Numerous studies have also been published about the capacity of these species to be used for phytoremediation purposes but with mixed results. This review will focus on the latest developments in the study of the uptake capacity, oxidative damage and biochemical and physiological tolerance and defense mechanisms to heavy metal toxicity on six economically important species: B. juncea, B. napus, B. oleracea, B. carinata, B. rapa and B. nigra.
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Affiliation(s)
- Miguel P Mourato
- LEAF-Linking Landscape, Environment, Agriculture and Food, Instituto Superior de Agronomia, Universidade de Lisboa, 1349-017 Lisboa, Portugal.
| | - Inês N Moreira
- LEAF-Linking Landscape, Environment, Agriculture and Food, Instituto Superior de Agronomia, Universidade de Lisboa, 1349-017 Lisboa, Portugal.
| | - Inês Leitão
- LEAF-Linking Landscape, Environment, Agriculture and Food, Instituto Superior de Agronomia, Universidade de Lisboa, 1349-017 Lisboa, Portugal.
| | - Filipa R Pinto
- LEAF-Linking Landscape, Environment, Agriculture and Food, Instituto Superior de Agronomia, Universidade de Lisboa, 1349-017 Lisboa, Portugal.
| | - Joana R Sales
- LEAF-Linking Landscape, Environment, Agriculture and Food, Instituto Superior de Agronomia, Universidade de Lisboa, 1349-017 Lisboa, Portugal.
| | - Luisa Louro Martins
- LEAF-Linking Landscape, Environment, Agriculture and Food, Instituto Superior de Agronomia, Universidade de Lisboa, 1349-017 Lisboa, Portugal.
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6
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Amooaghaie R, Tabatabaei F, Ahadi AM. Role of hematin and sodium nitroprusside in regulating Brassica nigra seed germination under nanosilver and silver nitrate stresses. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2015; 113:259-70. [PMID: 25528376 DOI: 10.1016/j.ecoenv.2014.12.017] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2014] [Revised: 12/04/2014] [Accepted: 12/08/2014] [Indexed: 05/08/2023]
Abstract
Silver nanoparticles (AgNPs) are one of the most widely used nanomaterials, although the mechanisms of AgNP toxicity in terrestrial plants is still unclear. We compared the toxic effects of AgNPs and AgNO3 on Brassica nigra seed germination at physiological and molecular levels. Both AgNPs and AgNO3 inhibited seed germination, lipase activity, soluble and reducing sugar contents in germinating seeds and seedlings. These reductions were more pronounced in AgNP treatments than AgNO3 treatments. Application of 200-400mg/L both AgNPs and AgNO3 increased transcription of heme oxygenase-1. However, at 800, 1600 mg/L, AgNPs or AgNO3 suppressed HO-1 expression. At 400mg/L, AgNPs or AgNO3-induced inhibitory effects on seed germination and were ameliorated by the HO-1 inducer, hematin, or NO donor, sodium nitroprusside (SNP). Additionally, 4 μM hematin and 400 μM SNP were able to markedly boost the HO/NO system. However, the addition of the HO-1 inhibitor (ZnPPIX) or the specific scavenger of NO (cPTIO) not only reversed the protective effects conferred by hematin, but also blocked the up-regulation of HO activity. In addition, hematin-drived NO production in B. niger seeds under AgNPs was confirmed. Our results at physiological and molecular levels suggested that AgNPs were more toxic than AgNO3. Based on these results, for the first time, we suggest that endogenous HO is needed to alleviate AgNPs-induced germination inhibition, which might have a possible interaction with NO.
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Affiliation(s)
- Rayhaneh Amooaghaie
- Biology Department, Science Faculty, Shahrekord University, Shahrekord, Iran.
| | - Fatemeh Tabatabaei
- Biology Department, Science Faculty, Shahrekord University, Shahrekord, Iran
| | - Ali-Mohammad Ahadi
- Biology Department, Science Faculty, Shahrekord University, Shahrekord, Iran; Genetic Department, Science Faculty, Shahrekord University, Shahrekord, Iran
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7
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Kang G, Li G, Wang L, Wei L, Yang Y, Wang P, Yang Y, Wang Y, Feng W, Wang C, Guo T. Hg-Responsive Proteins Identified in Wheat Seedlings Using iTRAQ Analysis and the Role of ABA in Hg Stress. J Proteome Res 2014; 14:249-67. [DOI: 10.1021/pr5006873] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Guozhang Kang
- The
Collaborative Innovation Center of Henan Grain Crops, Henan Agricultural University, Zhengzhou, 450002, China
- The
National Key Laboratory of Wheat and Maize Crop Science, Henan Agricultural University, Zhengzhou, 450002, China
| | - Gezi Li
- The
Collaborative Innovation Center of Henan Grain Crops, Henan Agricultural University, Zhengzhou, 450002, China
| | - Lina Wang
- The
Collaborative Innovation Center of Henan Grain Crops, Henan Agricultural University, Zhengzhou, 450002, China
- The
National Engineering Research Centre for Wheat, Henan Agricultural University, Zhengzhou, 450002, China
| | - Liting Wei
- The
National Key Laboratory of Wheat and Maize Crop Science, Henan Agricultural University, Zhengzhou, 450002, China
| | - Yang Yang
- The
National Engineering Research Centre for Wheat, Henan Agricultural University, Zhengzhou, 450002, China
| | - Pengfei Wang
- The
Collaborative Innovation Center of Henan Grain Crops, Henan Agricultural University, Zhengzhou, 450002, China
| | - Yingying Yang
- The
National Engineering Research Centre for Wheat, Henan Agricultural University, Zhengzhou, 450002, China
| | - Yonghua Wang
- The
National Key Laboratory of Wheat and Maize Crop Science, Henan Agricultural University, Zhengzhou, 450002, China
| | - Wei Feng
- The
National Engineering Research Centre for Wheat, Henan Agricultural University, Zhengzhou, 450002, China
| | - Chenyang Wang
- The
National Engineering Research Centre for Wheat, Henan Agricultural University, Zhengzhou, 450002, China
| | - Tiancai Guo
- The
Collaborative Innovation Center of Henan Grain Crops, Henan Agricultural University, Zhengzhou, 450002, China
- The
National Engineering Research Centre for Wheat, Henan Agricultural University, Zhengzhou, 450002, China
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8
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Kapoor D, Kaur S, Bhardwaj R. Physiological and biochemical changes in Brassica juncea plants under Cd-induced stress. BIOMED RESEARCH INTERNATIONAL 2014; 2014:726070. [PMID: 25133178 PMCID: PMC4123575 DOI: 10.1155/2014/726070] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/30/2014] [Revised: 05/30/2014] [Accepted: 06/17/2014] [Indexed: 12/03/2022]
Abstract
Plants of Brassica juncea L. var. RLC-1 were exposed for 30 days to different concentrations (0, 0.2, 0.4, and 0.6 mM) of cadmium (Cd) to analyze the Cd uptake, H2O2 content, hormonal profiling, level of photosynthetic pigments (chlorophyll, carotenoid, and flavonoid), gaseous exchange parameters (photosynthetic rate, vapour pressure deficit, intercellular CO2 concentration, and intrinsic mesophyll rate), antioxidative enzymes (superoxide dismutase, polyphenol oxidase, glutathione-S transferase, and glutathione peroxidase), antioxidant assays (DPPH, ABTS, and total phenolic content), and polyphenols. Results of the present study revealed the increased H2O2 content and Cd uptake with increasing metal doses. UPLC analysis of plants showed the presence of various polyphenols. Gaseous exchange measurements were done by infrared gas analyzer (IRGA), which was negatively affected by metal treatment. In addition, LC/MS study showed the variation in the expression of plant hormones. Level of photosynthetic pigments and activities of antioxidative enzymes were altered significantly in response to metal treatment. In conclusion, the antioxidative defence system of plants got activated due to heavy metal stress, which protects the plants by scavenging free radicals.
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Affiliation(s)
- Dhriti Kapoor
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, Punjab 143005, India
| | - Satwinderjeet Kaur
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, Punjab 143005, India
| | - Renu Bhardwaj
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, Punjab 143005, India
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9
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Dixit S, Verma K, Shekhawat GS. In vitro evaluation of mitochondrial-chloroplast subcellular localization of heme oxygenase1 (HO1) in Glycine max. PROTOPLASMA 2014; 251:671-5. [PMID: 24158377 DOI: 10.1007/s00709-013-0569-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2013] [Accepted: 10/10/2013] [Indexed: 05/08/2023]
Abstract
Heme oxygenase1 (HO1) catalyzes the degradation of heme in to biliverdin, carbon monoxide, and ferrous ions. Its role in higher plants has been found as an antioxidant and precursor of phytochrome synthesis. The present study focuses on subcellular localization of HO1 in leaves of soybean has been investigated. Most activity appeared to be located within chloroplast due to its role in phytochrome synthesis but mitochondria also share its localization. Mitochondrial location of HO1 might be on its inner membranous space due to its role in the synthesis of electron donor species which facilitates HO1 catalyzed reaction. Study reports the co-localization of HO1 in both chloroplast and mitochondria.
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Affiliation(s)
- Shubham Dixit
- Department of Bioscience and Biotechnology, Banasthali University, Banasthali, 304022, India
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10
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Zhang JJ, Lu YC, Zhang JJ, Tan LR, Yang H. Accumulation and toxicological response of atrazine in rice crops. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2014; 102:105-12. [PMID: 24530725 DOI: 10.1016/j.ecoenv.2013.12.034] [Citation(s) in RCA: 63] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2013] [Revised: 11/30/2013] [Accepted: 12/04/2013] [Indexed: 05/18/2023]
Abstract
Atrazine is one of the most widely used herbicides for controlling weeds and grasses. Due to its intensive use, it has become a serious contaminant in soil and water. To evaluate impact of atrazine on graminaceous crops, experiments focusing on atrazine accumulation and toxic response in rice (Oryza sativa) were carried out. Treatment with atrazine at 0.05-0.8 mg L(-1) for 6 d reduced elongation of shoot and root. Compared with a mock treatment, the elongation of shoot with atrazine was 67.1 percent of the control, whereas that of root was 79.5 percent, indicating that the shoot was more affected than the root. Atrazine was readily absorbed by rice from media. Although the quantitative absorption of atrazine was positively correlated with the external supply of the herbicide, translocation of atrazine from roots to the above-ground was reduced from 39.88±6.26 (at 0.05 mg L(-1)) to 9.25±0.27 (0.8 mg L(-1)). While accumulation of atrazine in rice plants led to toxic responses such as over-generation of hydrogen peroxide and superoxide anions, it triggered the plant defense system against the herbicide-induced oxidative stress. This was best presented by the enhanced activities of several antioxidant enzymes (e.g. superoxide dismutase, catalase and peroxidase) and expression of genes responsible for the tolerance to atrazine toxicity.
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Affiliation(s)
- Jia Jun Zhang
- Jiangsu Key Laboratory of Pesticide Science, College of Science, Nanjing Agricultural University, Nanjing 210095, China; Department of Pharmacy, Tongren Polytechnic, Tongren, China
| | - Yi Chen Lu
- Jiangsu Key Laboratory of Pesticide Science, College of Science, Nanjing Agricultural University, Nanjing 210095, China; Key Laboratory of Monitoring and Management of Crop Diseases and Pest Insects, Ministry of Agriculture, Nanjing Agricultural University, Nanjing 210095, China
| | - Jin Jin Zhang
- Jiangsu Key Laboratory of Pesticide Science, College of Science, Nanjing Agricultural University, Nanjing 210095, China
| | - Li Rong Tan
- Jiangsu Key Laboratory of Pesticide Science, College of Science, Nanjing Agricultural University, Nanjing 210095, China; Key Laboratory of Monitoring and Management of Crop Diseases and Pest Insects, Ministry of Agriculture, Nanjing Agricultural University, Nanjing 210095, China
| | - Hong Yang
- Jiangsu Key Laboratory of Pesticide Science, College of Science, Nanjing Agricultural University, Nanjing 210095, China.
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11
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Dissecting plant iron homeostasis under short and long-term iron fluctuations. Biotechnol Adv 2013; 31:1292-307. [PMID: 23680191 DOI: 10.1016/j.biotechadv.2013.05.003] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2013] [Revised: 04/18/2013] [Accepted: 05/05/2013] [Indexed: 12/30/2022]
Abstract
A wealth of information on the different aspects of iron homeostasis in plants has been obtained during the last decade. However, there is no clear road-map integrating the relationships between the various components. The principal aim of the current review is to fill this gap. In this context we discuss the lack of low affinity iron uptake mechanisms in plants, the utilization of a different uptake mechanism by graminaceous plants compared to the others, as well as the roles of riboflavin, ferritin isoforms, nitric oxide, nitrosylation, heme, aconitase, and vacuolar pH. Cross-homeostasis between elements is also considered, with a specific emphasis on the relationship between iron homeostasis and phosphorus and copper deficiencies. As the environment is a crucial parameter for modulating plant responses, we also highlight how diurnal fluctuations govern iron metabolism. Evolutionary aspects of iron homeostasis have so far attracted little attention. Looking into the past can inform us on how long-term oxygen and iron-availability fluctuations have influenced the evolution of iron uptake mechanisms. Finally, we evaluate to what extent this homeostastic road map can be used for the development of novel biofortification strategies in order to alleviate iron deficiency in human.
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12
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Min Yang Z, Chen J. A potential role of microRNAs in plant response to metal toxicity. Metallomics 2013; 5:1184-90. [DOI: 10.1039/c3mt00022b] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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