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Molecular and genetic analyses revealed the phytotoxicity of perfluorobutane sulfonate
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Highlights Perfluorobutane sulfonate has higher environmental safety in plants. Perfluorobutane sulfonate inhibits primary root growth and photosynthesis. Perfluorobutane sulfonate disrupts phytohormone signaling pathways. Photosynthesis is a common target of organic pollutants inhibiting plant growth.
Abstract Perfluorobutane sulfonate (PFBS) has oily and hydrophobic characteristics similar to those of perfluorooctane sulfonic acid (PFOS), which is an environmental organic pollutant and has gradually become the main substitute for PFOS in industry. Several studies have revealed the potential toxicity of PFBS in animals. PFBS can be taken up and accumulate in plants; however, whether and how PFBS affects plant growth remain largely unclear. A low concentration of PFBS did not affect plant growth, indicating that it had higher environmental safety than other perfluorinated compounds; however, a high concentration of PFBS (>1 mM) markedly inhibited primary root growth in Arabidopsis thaliana. Subsequently, we investigated the molecular mechanisms underlying plant growth mediated by high concentrations of PFBS. First, a genome-wide transcriptomic analysis revealed that PFBS altered the expression of genes associated with phytohormone signaling pathways. Combining physio-biochemical and genetic analyses, we next demonstrated that PFBS reduced the contents of indole-3-acetic acid (IAA) and abscisic acid (ABA), and disrupted the two signaling pathways in plants, finally inhibiting root growth. Moreover, a high concentration of PFBS also inhibited photosynthesis by comprehensively repressing the expression of genes related to the Calvin cycle and the photosynthetic apparatus. Such an understanding is helpful for elucidating the phytotoxicity of PFBS and provides a new strategy for toxicology research on organic pollutants in plants.
Molecular and genetic analyses revealed the phytotoxicity of perfluorobutane sulfonate
Graphical abstract Display Omitted
Highlights Perfluorobutane sulfonate has higher environmental safety in plants. Perfluorobutane sulfonate inhibits primary root growth and photosynthesis. Perfluorobutane sulfonate disrupts phytohormone signaling pathways. Photosynthesis is a common target of organic pollutants inhibiting plant growth.
Abstract Perfluorobutane sulfonate (PFBS) has oily and hydrophobic characteristics similar to those of perfluorooctane sulfonic acid (PFOS), which is an environmental organic pollutant and has gradually become the main substitute for PFOS in industry. Several studies have revealed the potential toxicity of PFBS in animals. PFBS can be taken up and accumulate in plants; however, whether and how PFBS affects plant growth remain largely unclear. A low concentration of PFBS did not affect plant growth, indicating that it had higher environmental safety than other perfluorinated compounds; however, a high concentration of PFBS (>1 mM) markedly inhibited primary root growth in Arabidopsis thaliana. Subsequently, we investigated the molecular mechanisms underlying plant growth mediated by high concentrations of PFBS. First, a genome-wide transcriptomic analysis revealed that PFBS altered the expression of genes associated with phytohormone signaling pathways. Combining physio-biochemical and genetic analyses, we next demonstrated that PFBS reduced the contents of indole-3-acetic acid (IAA) and abscisic acid (ABA), and disrupted the two signaling pathways in plants, finally inhibiting root growth. Moreover, a high concentration of PFBS also inhibited photosynthesis by comprehensively repressing the expression of genes related to the Calvin cycle and the photosynthetic apparatus. Such an understanding is helpful for elucidating the phytotoxicity of PFBS and provides a new strategy for toxicology research on organic pollutants in plants.
Molecular and genetic analyses revealed the phytotoxicity of perfluorobutane sulfonate
Sun, Liangliang (Autor:in) / Zhang, Ping (Autor:in) / Liu, Fei (Autor:in) / Ju, Qiong (Autor:in) / Xu, Jin (Autor:in)
16.11.2022
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Perfluorobutane sulfonate , Environmental risk , Phytohormone signaling pathways , Primary root growth , Photosynthesis , ABA , abscisic acid , DEGs , differentially expressed genes , FC , fold change , Fv/Fm , maximal PSII activity parameter , GFP , green fluorescent protein , GO , Gene Ontology , IAA , indole-3-acetic acid , PCA , principal component analysis , PFASs , polyfluoroalkyl substances , PFBS , perfluorobutane sulfonate , PFOA , perfluorooctanoic acid , PFOS , perfluorooctane sulfonic acid , PR , primary root , qN , non-photochemical quenching coefficient , SPSS , Statistic Package for Social Science , Y(II) , effective PS II quantum yield , Y(NO) , quantum<hsp></hsp>yield<hsp></hsp>of non-regulated energy<hsp></hsp>dissipation<hsp></hsp>in PSII
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