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Goggin DE, Cawthray GR, Busi R. Pyroxasulfone Metabolism in Resistant Lolium rigidum: Is It All Down to GST Activity? JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:3937-3948. [PMID: 38354096 DOI: 10.1021/acs.jafc.3c08141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/16/2024]
Abstract
Resistance to the herbicide pyroxasulfone has slowly but steadily increased in agricultural weeds. The evolved resistance of one Lolium rigidum population has been attributed to the conjugation of pyroxasulfone to reduced glutathione, mediated by glutathione transferase (GST) activity. To determine if GST-based metabolism is a widespread mechanism of pyroxasulfone resistance in L. rigidum, a number of putative-resistant populations were screened for GST activity toward pyroxasulfone, the presence of GSTF13-like isoforms (previously implicated in pyroxasulfone conjugation in this species), tissue glutathione concentrations, and response to inhibitors of GSTs and oxygenases. Although there were no direct correlations between pyroxasulfone resistance levels and these individual parameters, a random forest analysis indicated that GST activity was of primary importance for L. rigidum resistance to this herbicide.
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Affiliation(s)
- Danica E Goggin
- Australian Herbicide Resistance Initiative, School of Agriculture and Environment, University of Western Australia, 35 Stirling Highway, Crawley 6009, Australia
| | - Gregory R Cawthray
- Separation Science and Mass Spectrometry Facility, University of Western Australia, 35 Stirling Highway, Crawley 6009, Australia
| | - Roberto Busi
- Australian Herbicide Resistance Initiative, School of Agriculture and Environment, University of Western Australia, 35 Stirling Highway, Crawley 6009, Australia
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Niu Y, Liu L, Wang F, Liu X, Huang Z, Zhao H, Qi B, Zhang G. Exogenous silicon enhances resistance to 1,2,4-trichlorobenzene in rice. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 845:157248. [PMID: 35820528 DOI: 10.1016/j.scitotenv.2022.157248] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2022] [Revised: 07/04/2022] [Accepted: 07/05/2022] [Indexed: 06/15/2023]
Abstract
Environmental contamination with 1,2,4-trichlorobenzene (TCB) is a threat to rice growth, and ultimately, to human health. Silicon (Si) plays an important role in plants' stress responses. However, little is known about the effects of Si on the TCB tolerance of rice plants. We investigated the effects of Si on the morphological, physiological, and molecular characteristics of rice plants under TCB stress. First, we compared the TCB tolerance of 13 rice cultivars by measuring seven growth-related and 13 physiological indices across four treatments. Then, six cultivars with contrasting TCB tolerance were selected to study the expression of Si transport and detoxification related genes. Compared with the control, the TCB treatment resulted in decreased growth indices, chlorophyll content, and antioxidant enzyme activities, and increased the superoxide anion content and root electrical conductivity. Application of Si improved rice growth, chlorophyll content and alleviated oxidative damage caused by TCB. The alleviating effect of Si ranged from 4.1 % to 56.72 % among the cultivars, with the strongest alleviating effect on Wuyujing 36. The transcript levels of genes encoding Si transporters and detoxification enzymes were higher in tolerant cultivars than in sensitive cultivars. The TCB treatment induced the expression of GST and Lsi2 in roots and HO-1 in leaves; these genes as well as Lsi1 were differentially expressed in roots and/or leaves in the TCB + Si treatment. Lsi1 played a key role in Si-mediated TCB tolerance in Wuyujing 36. The joint analysis of gene transcript levels in TCB and TCB + Si treatments confirmed that all six genes were associated with TCB tolerance, especially Lsi1 and Lsi2 in roots and GST and CuZn-SOD in leaves. Si can increase rice plants' resistance to TCB stress by improving growth and enhancing superoxide dismutase (SOD) activity and chlorophyll content, and by up-regulating genes involved in Si transport and detoxification.
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Affiliation(s)
- Yuan Niu
- School of Life Sciences and Food Engineering, Huaiyin Institute of Technology, Huai'an 223003, China
| | - Le Liu
- School of Life Sciences and Food Engineering, Huaiyin Institute of Technology, Huai'an 223003, China
| | - Fang Wang
- School of Life Sciences and Food Engineering, Huaiyin Institute of Technology, Huai'an 223003, China
| | - Xinhai Liu
- School of Life Sciences and Food Engineering, Huaiyin Institute of Technology, Huai'an 223003, China
| | - Zhiwei Huang
- School of Life Sciences and Food Engineering, Huaiyin Institute of Technology, Huai'an 223003, China
| | - Hongliang Zhao
- School of Life Sciences and Food Engineering, Huaiyin Institute of Technology, Huai'an 223003, China
| | - Bo Qi
- School of Life Sciences and Food Engineering, Huaiyin Institute of Technology, Huai'an 223003, China
| | - Guoliang Zhang
- School of Life Sciences and Food Engineering, Huaiyin Institute of Technology, Huai'an 223003, China; State Key Laboratory of soil and agricultural sustainable development, Nanjing 210008, China; Jiangsu Key Laboratory of Attapulgite Clay Resource Utilization, Huai'an 223003, China.
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Hasterok R, Catalan P, Hazen SP, Roulin AC, Vogel JP, Wang K, Mur LAJ. Brachypodium: 20 years as a grass biology model system; the way forward? TRENDS IN PLANT SCIENCE 2022; 27:1002-1016. [PMID: 35644781 DOI: 10.1016/j.tplants.2022.04.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 04/13/2022] [Accepted: 04/26/2022] [Indexed: 06/15/2023]
Abstract
It has been 20 years since Brachypodium distachyon was suggested as a model grass species, but ongoing research now encompasses the entire genus. Extensive Brachypodium genome sequencing programmes have provided resources to explore the determinants and drivers of population diversity. This has been accompanied by cytomolecular studies to make Brachypodium a platform to investigate speciation, polyploidisation, perenniality, and various aspects of chromosome and interphase nucleus organisation. The value of Brachypodium as a functional genomic platform has been underscored by the identification of key genes for development, biotic and abiotic stress, and cell wall structure and function. While Brachypodium is relevant to the biofuel industry, its impact goes far beyond that as an intriguing model to study climate change and combinatorial stress.
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Affiliation(s)
- Robert Hasterok
- Plant Cytogenetics and Molecular Biology Group, Institute of Biology, Biotechnology and Environmental Protection, Faculty of Natural Sciences, University of Silesia in Katowice, Katowice 40-032, Poland.
| | - Pilar Catalan
- Department of Agricultural and Environmental Sciences, High Polytechnic School of Huesca, University of Zaragoza, Huesca 22071, Spain; Grupo de Bioquímica, Biofísica y Biología Computacional (BIFI, UNIZAR), Unidad Asociada al CSIC, Zaragoza E-50059, Spain
| | - Samuel P Hazen
- Biology Department, University of Massachusetts Amherst, Amherst, MA 01003, USA
| | - Anne C Roulin
- Department of Plant and Microbial Biology, University of Zürich, Zürich 8008, Switzerland
| | - John P Vogel
- DOE Joint Genome Institute, Berkeley, CA 94720, USA; University California, Berkeley, Berkeley, CA 94720, USA
| | - Kai Wang
- School of Life Sciences, Nantong University, Nantong 226019, Jiangsu, China
| | - Luis A J Mur
- Institute of Biological, Environmental and Rural Sciences, Aberystwyth University, Edward Llwyd Building, Aberystwyth SY23 3DA, UK; College of Agronomy, Shanxi Agricultural University, Taiyuan 030801, Shanxi, China.
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Goggin DE, Cawthray GR, Flematti GR, Bringans SD, Lim H, Beckie HJ, Busi R. Pyroxasulfone-Resistant Annual Ryegrass ( Lolium rigidum) Has Enhanced Capacity for Glutathione Transferase-Mediated Pyroxasulfone Conjugation. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:6414-6422. [PMID: 34081453 DOI: 10.1021/acs.jafc.0c07458] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
The herbicide pyroxasulfone was widely introduced in 2012, and cases of evolved resistance in weeds such as annual ryegrass (Lolium rigidum Gaud.) and tall waterhemp [Amaranthus tuberculatus (Moq.) Sauer] have started to emerge. Pyroxasulfone is detoxified by tolerant crops, and by annual ryegrass that has been recurrently selected with pyroxasulfone, in a pathway that is hypothesized to involve glutathione conjugation. In the current study, it was confirmed that pyroxasulfone is conjugated to glutathione in vitro by glutathione transferases (GSTs) purified from susceptible and resistant annual ryegrass populations and from a tolerant crop species, wheat. The extent of conjugation corresponded to the pyroxasulfone resistance level. Pyroxasulfone-conjugating activity was higher in radicles, roots, and seeds compared to coleoptiles or expanded leaves. Among the GSTs purified from annual ryegrass radicles and seeds, an orthologue of Brachypodium distachyon GSTF13 was >20-fold more abundant in the pyroxasulfone-resistant population, suggesting that this protein could be responsible for pyroxasulfone conjugation.
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Affiliation(s)
- Danica E Goggin
- Australian Herbicide Resistance Initiative, School of Agriculture and Environment, University of Western Australia, 35 Stirling Highway, Crawley 6009, Australia
| | - Gregory R Cawthray
- School of Biological Sciences, University of Western Australia, 35 Stirling Highway, Crawley 6009, Australia
| | - Gavin R Flematti
- School of Molecular Sciences, University of Western Australia, 35 Stirling Highway, Crawley 6009, Australia
| | - Scott D Bringans
- Proteomics International, 6 Verdun Street, Nedlands 6009, Australia
| | - Hitormi Lim
- Proteomics International, 6 Verdun Street, Nedlands 6009, Australia
| | - Hugh J Beckie
- Australian Herbicide Resistance Initiative, School of Agriculture and Environment, University of Western Australia, 35 Stirling Highway, Crawley 6009, Australia
| | - Roberto Busi
- Australian Herbicide Resistance Initiative, School of Agriculture and Environment, University of Western Australia, 35 Stirling Highway, Crawley 6009, Australia
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Comparative Analysis of the Glutathione S-Transferase Gene Family of Four Triticeae Species and Transcriptome Analysis of GST Genes in Common Wheat Responding to Salt Stress. Int J Genomics 2021; 2021:6289174. [PMID: 33681347 PMCID: PMC7906807 DOI: 10.1155/2021/6289174] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Revised: 12/10/2020] [Accepted: 01/08/2021] [Indexed: 12/11/2022] Open
Abstract
Glutathione S-transferases (GSTs) are ancient proteins encoded by a large gene family in plants, which play multiple roles in plant growth and development. However, there has been little study on the GST genes of common wheat (Triticum aestivum) and its relatives (Triticum durum, Triticum urartu, and Aegilops tauschii), which are four important species of Triticeae. Here, a genome-wide comprehensive analysis of this gene family was performed on the genomes of common wheat and its relatives. A total of 346 GST genes in T. aestivum, 226 in T. durum, 104 in T. urartu, and 105 in Ae. tauschii were identified, and all members were divided into ten classes. Transcriptome analysis was used to identify GST genes that respond to salt stress in common wheat, which revealed that the reaction of GST genes is not sensitive to low and moderate salt concentrations but is sensitive to severe concentrations of the stressor, and the GST genes related to salt stress mainly come from the Tau and Phi classes. Six GST genes which respond to different salt concentrations were selected and validated by a qRT-PCR assay. These findings will not only provide helpful information about the function of GST genes in Triticeae species but also offer insights for the future application of salt stress resistance breeding in common wheat.
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Wang B, Li D, Yuan Z, Zhang Y, Ma X, Lv Z, Xiao Y, Zhang J. Evaluation of joint effects of perfluorooctane sulfonate and wood vinegar on planarians, Dugesia japonica. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:18089-18098. [PMID: 32170611 DOI: 10.1007/s11356-020-08342-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2019] [Accepted: 03/05/2020] [Indexed: 05/15/2023]
Abstract
Perfluorooctane sulfonate (PFOS) is a persistent organic pollutant and can cause oxidative stress in animals. Wood vinegar (WV) is the water condensate of smoke produced during wood carbonization. It was used for antibacterial application, pest control, and antioxidant. In the study, PFOS and WV were used to treat the planarian, and then the oxidative stress induced by PFOS on the planarian (Dugesia japonica) and the protective effects of WV on lipid peroxidation, related antioxidant enzyme activity, and mRNA expression in the planarian were studied. PFOS caused an increase in malondialdehyde (MDA) contents, a decrease in superoxide dismutase (SOD) and catalase (CAT) activities, and a change in glutathione peroxidase (GPx), glutathione S-transferase (GST), glutathione reductase (GR) activities. The mRNA levels of glutathione peroxidase gene (gpx), glutathione S-transferase enzyme gene (gst), and glutathione reductase gene (gr) are upregulated or downregulated to varying degrees. The WV and co-treatment planarians reduced MDA levels, increased the activities of oxidative stress biomarker enzymes, and restored gene expression levels. Our results show that low concentration of WV has protective effects on the oxidative damage caused by PFOS in the planarian.
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Affiliation(s)
- Bin Wang
- School of Life Sciences, Shandong University of Technology, Zibo, 255000, Shandong, China
| | - Danping Li
- School of Life Sciences, Shandong University of Technology, Zibo, 255000, Shandong, China
| | - Zuoqing Yuan
- School of Life Sciences, Shandong University of Technology, Zibo, 255000, Shandong, China
| | - Yuejie Zhang
- School of Life Sciences, Shandong University of Technology, Zibo, 255000, Shandong, China
| | - Xue Ma
- School of Life Sciences, Shandong University of Technology, Zibo, 255000, Shandong, China
| | - Ziheng Lv
- School of Life Sciences, Shandong University of Technology, Zibo, 255000, Shandong, China
| | - Yu Xiao
- School of Life Sciences, Shandong University of Technology, Zibo, 255000, Shandong, China
| | - Jianyong Zhang
- School of Life Sciences, Shandong University of Technology, Zibo, 255000, Shandong, China.
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