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Article ; Online: A weak allele of OsNRAMP5 for safer rice.

Zhao, Fang-Jie / Chang, Jia-Dong

2022 Volume 73, Issue 18, Page(s) 6009–6012

MeSH term(s)	Oryza/genetics ; Alleles ; Cadmium ; Plant Proteins/genetics ; Soil Pollutants ; Soil
Chemical Substances	Cadmium (00BH33GNGH) ; Plant Proteins ; Soil Pollutants ; Soil
Language	English
Publishing date	2022-01-04
Publishing country	England
Document type	Journal Article ; Research Support, Non-U.S. Gov't ; Comment
ZDB-ID	2976-2
ISSN	1460-2431 ; 0022-0957
ISSN (online)	1460-2431
ISSN	0022-0957
DOI	10.1093/jxb/erac323
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Article ; Online: Translocation, enzymatic reduction and toxicity of dimethylarsenate in rice.

Wang, Yi-Jie / Dong, Chun-Yan / Tang, Zhong / Zhao, Fang-Jie

Plant physiology and biochemistry : PPB

2024 Volume 207, Page(s) 108393

Abstract: Dimethylarsenate [DMAs(V)] can be produced by some soil microorganisms through methylation of inorganic arsenic (As), especially in anoxic paddy soils. DMAs(V) is more phytotoxic than inorganic As and can cause the physiological disorder straighthead ... ...

Abstract	Dimethylarsenate [DMAs(V)] can be produced by some soil microorganisms through methylation of inorganic arsenic (As), especially in anoxic paddy soils. DMAs(V) is more phytotoxic than inorganic As and can cause the physiological disorder straighthead disease in rice. Rice cultivars vary widely in the resistance to DMAs(V), but the mechanism remains elusive. Here, we investigated the differences in DMAs(V) uptake, translocation, and reduction to dimethylarsenite [DMAs(III)], as well as the effects on the metabolome, between two rice cultivars Mars and Zhe733. We found that Mars was 11-times more resistant to DMAs(V) than Zhe733. Mars accumulated more DMAs(V) in the roots, whereas Zhe733 translocated more DMAs(V) to the shoots and reduced more DMAs(V) to DMAs(III). DMAs(III) was more toxic than DMAs(V). Using heterologous expression and in vitro enzyme assays, we showed that the glutathione-S-transferases OsGSTU17 and OsGSTU50 were able to reduce DMAs(V) to DMAs(III). The expression levels of OsGSTU17 and OsGSTU50 were higher in the shoot of Zhe733 compared to Mars. Metabolomic analysis in rice shoots showed that glutathione (GSH) metabolism was perturbed by DMAs(V) toxicity in Zhe733. Application of exogenous GSH significantly alleviated the toxicity of DMAs(V) in Zhe733. Taken together, the results suggest that Mars is more resistant to DMAs(V) than Zhe733 because of a lower root-to-shoot translocation and a smaller capacity to reduce DMAs(V) to DMAs(III).
MeSH term(s)	Cacodylic Acid/metabolism ; Oryza/metabolism ; Arsenicals/metabolism ; Methylation ; Glutathione/metabolism ; Soil ; Arsenic/toxicity ; Arsenic/metabolism ; Soil Pollutants
Chemical Substances	Cacodylic Acid (AJ2HL7EU8K) ; Arsenicals ; Glutathione (GAN16C9B8O) ; Soil ; Arsenic (N712M78A8G) ; Soil Pollutants
Language	English
Publishing date	2024-01-25
Publishing country	France
Document type	Journal Article
ZDB-ID	742978-2
ISSN	1873-2690 ; 0981-9428
ISSN (online)	1873-2690
ISSN	0981-9428
DOI	10.1016/j.plaphy.2024.108393
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Article ; Online: Regulatory mechanisms of sulfur metabolism affecting tolerance and accumulation of toxic trace metals and metalloids in plants.

Sun, Sheng-Kai / Chen, Jie / Zhao, Fang-Jie

Journal of experimental botany

2023 Volume 74, Issue 11, Page(s) 3286–3299

Abstract: Soil contamination with trace metals and metalloids can cause toxicity to plants and threaten food safety and human health. Plants have evolved sophisticated mechanisms to cope with excess trace metals and metalloids in soils, including chelation and ... ...

Abstract	Soil contamination with trace metals and metalloids can cause toxicity to plants and threaten food safety and human health. Plants have evolved sophisticated mechanisms to cope with excess trace metals and metalloids in soils, including chelation and vacuolar sequestration. Sulfur-containing compounds, such as glutathione and phytochelatins, play a crucial role in their detoxification, and sulfur uptake and assimilation are regulated in response to the stress of toxic trace metals and metalloids. This review focuses on the multi-level connections between sulfur homeostasis in plants and responses to such stresses, especially those imposed by arsenic and cadmium. We consider recent progress in understanding the regulation of biosynthesis of glutathione and phytochelatins and of the sensing mechanism of sulfur homeostasis for tolerance of trace metals and metalloids in plants. We also discuss the roles of glutathione and phytochelatins in controlling the accumulation and distribution of arsenic and cadmium in plants, and possible strategies for manipulating sulfur metabolism to limit their accumulation in food crops.
MeSH term(s)	Humans ; Cadmium/metabolism ; Arsenic/metabolism ; Metalloids/metabolism ; Phytochelatins/metabolism ; Glutathione/metabolism ; Crops, Agricultural/metabolism ; Sulfur/metabolism
Chemical Substances	Cadmium (00BH33GNGH) ; Arsenic (N712M78A8G) ; Metalloids ; Phytochelatins (98726-08-0) ; Glutathione (GAN16C9B8O) ; Sulfur (70FD1KFU70)
Language	English
Publishing date	2023-03-19
Publishing country	England
Document type	Review ; Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	2976-2
ISSN	1460-2431 ; 0022-0957
ISSN (online)	1460-2431
ISSN	0022-0957
DOI	10.1093/jxb/erad074
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Article ; Online: Methylarsenite is a broad‐spectrum antibiotic disrupting cell wall biosynthesis and cell membrane potential

Huang, Ke / Liu, Wei / Zhao, Fang‐Jie

Environmental Microbiology. 2023 Feb., v. 25, no. 2 p.562-574

2023

Abstract: Methylarsenite (MAs(III)), a product of arsenic biomethylation or bioreduction of methylarsenate (MAs(V)), has been proposed as a primitive antibiotic. However, the antibacterial property and the bactericidal mechanism of MAs(III) remain largely unclear. ...

Abstract	Methylarsenite (MAs(III)), a product of arsenic biomethylation or bioreduction of methylarsenate (MAs(V)), has been proposed as a primitive antibiotic. However, the antibacterial property and the bactericidal mechanism of MAs(III) remain largely unclear. In this study, we found that MAs(III) is highly toxic to 14 strains of bacteria, especially against 9 strains of Gram‐positive bacteria with half maximal inhibitory concentration (IC50) in the sub micromolar range for Staphyloccocus aureus, Microbacterium sp., Pseudarthrobacter siccitolerans and several Bacillus species. In a co‐culture of B. subtilis 168 and MAs(III)‐producer Enterobacter sp. CZ‐1, the later reduced non‐toxic MAs(V) to highly toxic MAs(III) to kill the former and gain a competitive advantage. MAs(III) induced autolysis of B. subtilis 168. Deletion of the autolysins LytC, LytD, LytE, and LytF suppressed MAs(III)‐induced autolysis in B. subtilis 168. Transcriptomic analysis showed that MAs(III) downregulated the expression of the major genes involved in the biosynthesis of the cell wall peptidoglycan. Overexpression of an UDP‐N‐acetylglucosamine enolpyruvyl transferase gene murAA alleviated MAs(III)‐induced autolysis in B. subtilis 168. MAs(III) disrupted the membrane potential of B. subtilis 168 and caused severe membrane damage. The results suggest that MAs(III) is a broad‐spectrum antibiotic preferentially against Gram‐positive bacteria by disrupting the cell wall biosynthesis pathway and cell membrane potential.
Keywords	Enterobacter ; Microbacterium ; Staphylococcus aureus ; antibacterial properties ; antibiotics ; arsenic ; autolysis ; biosynthesis ; cell membranes ; cell walls ; coculture ; gametolysin ; genes ; inhibitory concentration 50 ; membrane potential ; microbiology ; peptidoglycans ; toxicity ; transcriptomics
Language	English
Dates of publication	2023-02
Size	p. 562-574.
Publishing place	John Wiley & Sons, Inc.
Document type	Article ; Online
Note	JOURNAL ARTICLE
ZDB-ID	2020213-1
ISSN	1462-2920 ; 1462-2912
ISSN (online)	1462-2920
ISSN	1462-2912
DOI	10.1111/1462-2920.16309
Database	NAL-Catalogue (AGRICOLA)

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Article ; Online: Dietary cadmium exposure, risks to human health and mitigation strategies

Zhao, Di / Wang, Peng / Zhao, Fang-Jie

Critical Reviews in Environmental Science and Technology. 2023 Apr. 18, v. 53, no. 8 p.939-963

2023

Abstract: Cadmium (Cd) is a toxic and carcinogenic pollutant widely distributed in the environment. Dietary intake is the main source of Cd exposure for the nonsmoking population. Assessment of dietary Cd intake provides a pathway to predict Cd body burden and ... ...

Abstract	Cadmium (Cd) is a toxic and carcinogenic pollutant widely distributed in the environment. Dietary intake is the main source of Cd exposure for the nonsmoking population. Assessment of dietary Cd intake provides a pathway to predict Cd body burden and potential health effects. Kidney has been considered as the most sensitive target of chronic Cd exposure. Because of the proportional relationship between Cd accumulation in kidney and Cd excretion via urine, urinary Cd (UCd) has been used as a biomarker of Cd exposure. Here, we review the dietary Cd intake levels in different countries, summarize the global food Cd concentrations reported in both market basket and field surveys, discuss UCd levels among different populations, and illustrate the associations between dietary Cd intake and UCd levels in population-based studies. Recommendations for the prevention and reduction of Cd exposure through anthropogenic inputs and the food chain are also proposed. This review presents a worldwide overview of Cd exposure status through diet for the general population as well as those living in contaminated areas, and provides evidence for policy makers to protect humans from Cd exposure and related health effects.
Keywords	biomarkers ; cadmium ; carcinogenicity ; excretion ; food chain ; food intake ; human health ; issues and policy ; kidneys ; markets ; pollutants ; technology ; urine ; dietary intake ; rice ; Hyunjung Kim and Scott Bradford
Language	English
Dates of publication	2023-0418
Size	p. 939-963.
Publishing place	Taylor & Francis
Document type	Article ; Online
ZDB-ID	2030115-7
ISSN	1547-6537 ; 1064-3389
ISSN (online)	1547-6537
ISSN	1064-3389
DOI	10.1080/10643389.2022.2099192
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Article ; Online: Ultrasensitive Electrochemiluminescence Sensor Utilizing Aggregation-Induced Emission Active Probe for Accurate Arsenite Quantification in Rice Grains.

Chen, Ming-Ming / Gao, Hang / Ge, Zhan-Biao / Zhao, Fang-Jie / Xu, Jing-Juan / Wang, Peng

Journal of agricultural and food chemistry

2024 Volume 72, Issue 5, Page(s) 2826–2833

Abstract: Arsenic (As) constitutes a substantial threat to global ecosystems and public health. An accurate quantification of inorganic arsenite (As(III)) in rice grains is crucial for ensuring food safety and human well-being. Herein, we constructed an ... ...

Abstract	Arsenic (As) constitutes a substantial threat to global ecosystems and public health. An accurate quantification of inorganic arsenite (As(III)) in rice grains is crucial for ensuring food safety and human well-being. Herein, we constructed an electrochemiluminescence (ECL) biosensor utilizing aggregation-induced emission (AIE) active Pdots for the sensitive detection of As(III) in rice. We synthesized tetraphenylethylene-based AIE-active Pdots, exhibiting stable and highly efficient ECL emission in their aggregated states. Owing to the overlap of spectra, we employed an electrochemiluminescence resonance energy transfer (ECL-RET) system, with the Pdots as the donor and black hole quencher (BHQ) as the acceptor. Upon the introduction of As(III), the conformational changes of As(III)-specific aptamer could trigger the detachment of BHQ-labeled DNA aptamer from the electrode surface, leading to the recovery of the ECL signal. The target-induced "signal-on" bioassay enabled the sensitive and specific detection of As(III) with a linear range of 10 pM to 500 nM, with an ultralow limit of detection (LOD) of 5.8 pM/0.4 ppt. These values significantly surpass those of existing sensors designed for As(III) quantification in rice. Furthermore, by employing amylase hydrolysis for efficient extraction, we successfully applied our sensor to measure As(III) in actual rice samples sourced from diverse regions of China. The results obtained using our sensor were in close agreement with those derived from the reference method of HPLC-ICP-MS. This study not only presents a sensitive and reliable method for detecting arsenite but also underscores its potential applications in enhancing food safety, agriculture practices, and environmental monitoring.
MeSH term(s)	Humans ; Oryza ; Arsenites ; Ecosystem ; Luminescent Measurements/methods ; Limit of Detection ; Biosensing Techniques/methods ; Electrochemical Techniques/methods
Chemical Substances	Arsenites
Language	English
Publishing date	2024-01-28
Publishing country	United States
Document type	Journal Article
ZDB-ID	241619-0
ISSN	1520-5118 ; 0021-8561
ISSN (online)	1520-5118
ISSN	0021-8561
DOI	10.1021/acs.jafc.3c08389
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Article ; Online: Editing Silicon Transporter Genes to Reduce Arsenic Accumulation in Rice.

Xu, Xuejie / Sun, Sheng-Kai / Zhang, Wenwen / Tang, Zhu / Zhao, Fang-Jie

Environmental science & technology

2024 Volume 58, Issue 4, Page(s) 1976–1985

Abstract: Rice is a dominant source of inorganic arsenic (As) exposure for populations consuming rice as a staple food. Decreasing As accumulation in rice grain is important for improving food safety. Arsenite [As(III)], the main form of As in paddy soil porewater, ...

Abstract	Rice is a dominant source of inorganic arsenic (As) exposure for populations consuming rice as a staple food. Decreasing As accumulation in rice grain is important for improving food safety. Arsenite [As(III)], the main form of As in paddy soil porewater, is taken up inadvertently by OsLsi1 and OsLsi2, the two key transporters for silicon (Si) uptake in rice roots. Here, we investigated whether editing
MeSH term(s)	Arsenic ; Silicon/metabolism ; Oryza/genetics ; Membrane Transport Proteins ; Biological Transport ; Soil ; Soil Pollutants
Chemical Substances	Arsenic (N712M78A8G) ; Silicon (Z4152N8IUI) ; Membrane Transport Proteins ; Soil ; Soil Pollutants
Language	English
Publishing date	2024-01-17
Publishing country	United States
Document type	Journal Article
ISSN	1520-5851
ISSN (online)	1520-5851
DOI	10.1021/acs.est.3c10763
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Article ; Online: OsCOPT7 is a copper exporter at the tonoplast and endoplasmic reticulum and controls Cu translocation to the shoots and grain of rice.

Tang, Zhong / Li, Ya-Fang / Zhang, Zhi-Hao / Huang, Xin-Yuan / Zhao, Fang-Jie

Plant, cell & environment

2024 Volume 47, Issue 6, Page(s) 2163–2177

Abstract: Copper (Cu) is an essential micronutrient for all living organisms but is also highly toxic in excess. Cellular homoeostasis of Cu is maintained by various transporters and metallochaperones. Here, we investigated the biological function of OsCOPT7, a ... ...

Abstract	Copper (Cu) is an essential micronutrient for all living organisms but is also highly toxic in excess. Cellular homoeostasis of Cu is maintained by various transporters and metallochaperones. Here, we investigated the biological function of OsCOPT7, a member of the copper transporters (COPT) family, in Cu homoeostasis in rice. OsCOPT7 was mainly expressed in the roots and the expression was upregulated by Cu deficiency. OsCOPT7 was localized at the tonoplast and the endoplasmic reticulum. Knockout of OsCOPT7 increased Cu accumulation in the roots but decreased Cu concentrations in the shoots and grain. The knockout mutants contained higher concentrations of Cu in the roots cell sap but markedly lower concentrations of Cu in the xylem sap than wild-type plants. Seed setting and grain yield were reduced significantly in the knockout mutants grown in a low Cu soil. Knockout mutants were more tolerant to Cu toxicity. Yeast two-hybrid and bimolecular fluorescence complementation assays showed that OsCOPT7 interacts physically with the rice Cu chaperone antioxidant protein 1 (OsATX1). Taken together, our results indicate that OsCOPT7 is a specific Cu transporter functioning to export Cu from the vacuoles and the ER and plays an important role in controlling the root-to-shoot Cu translocation in rice.
MeSH term(s)	Oryza/metabolism ; Oryza/genetics ; Copper/metabolism ; Plant Proteins/metabolism ; Plant Proteins/genetics ; Plant Shoots/metabolism ; Endoplasmic Reticulum/metabolism ; Plant Roots/metabolism ; Gene Expression Regulation, Plant ; Biological Transport ; Edible Grain/metabolism ; Edible Grain/genetics ; Seeds/metabolism ; Seeds/genetics ; Vacuoles/metabolism ; Cation Transport Proteins/metabolism ; Cation Transport Proteins/genetics ; Gene Knockout Techniques
Chemical Substances	Copper (789U1901C5) ; Plant Proteins ; Cation Transport Proteins
Language	English
Publishing date	2024-03-13
Publishing country	United States
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	391893-2
ISSN	1365-3040 ; 0140-7791
ISSN (online)	1365-3040
ISSN	0140-7791
DOI	10.1111/pce.14867
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Article: The roles of membrane transporters in arsenic uptake, translocation and detoxification in plants

Tang, Zhong / Zhao, Fang-Jie

Critical reviews in environmental science and technology. 2021 Oct. 11, v. 51, no. 21

2021

Abstract: Arsenic (As) is one of the most toxic environmental contaminants that is ubiquitously distributed in the environment. Millions of people worldwide suffer from As poisoning due to As exposure from drinking water and dietary intake. Reducing As ... ...

Abstract	Arsenic (As) is one of the most toxic environmental contaminants that is ubiquitously distributed in the environment. Millions of people worldwide suffer from As poisoning due to As exposure from drinking water and dietary intake. Reducing As accumulation in food crops is of great importance for food safety and public health. Limiting As accumulation in food crops or phytoremediation of As-contaminated soil depend on a detailed understanding of As uptake and transport in plants. Plants take up and transport different As species via various membrane transporters that are localized in different tissues or cell types and with different orientations. Many of these transporters are responsible for the uptake and translocation of essential or beneficial nutrients, but can also transport As species inadvertently due to imperfect selectivity. Herein, we summarize the roles of transporters involved in the uptake, transport, accumulation and detoxification of different As species and the regulation mechanisms of these transporters in plants. Potential uses of these transporters for breeding or genetic engineering crops of low As accumulation or plants for phytoremediation are also discussed.
Keywords	arsenic ; food intake ; food safety ; people ; phytoremediation ; pollution ; public health ; technology ; toxicity
Language	English
Dates of publication	2021-1011
Size	p. 2449-2484.
Publishing place	Taylor & Francis
Document type	Article
ZDB-ID	2030115-7
ISSN	1547-6537 ; 1064-3389
ISSN (online)	1547-6537
ISSN	1064-3389
DOI	10.1080/10643389.2020.1795053
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Article ; Online: Applications and opportunities of click chemistry in plant science.

Chen, Ming-Ming / Kopittke, Peter M / Zhao, Fang-Jie / Wang, Peng

Trends in plant science

2023 Volume 29, Issue 2, Page(s) 167–178

Abstract: The Nobel Prize in Chemistry for 2022 was awarded to the pioneers of Lego-like 'click chemistry': combinatorial chemistry with remarkable modularity and diversity. It has been applied to a wide variety of biological systems, from microorganisms to plants ...

Abstract	The Nobel Prize in Chemistry for 2022 was awarded to the pioneers of Lego-like 'click chemistry': combinatorial chemistry with remarkable modularity and diversity. It has been applied to a wide variety of biological systems, from microorganisms to plants and animals, including humans. Although click chemistry is a powerful chemical biology tool, comparatively few studies have examined its potential in plant science. Here, we review click chemistry reactions and their applications in plant systems, highlighting the activity-based probes and metabolic labeling strategies combined with bioorthogonal click chemistry to visualize plant biological processes. These applications offer new opportunities to explore and understand the underlying molecular mechanisms regulating plant composition, growth, metabolism, defense, and immune responses.
MeSH term(s)	Click Chemistry ; Plants/chemistry
Language	English
Publishing date	2023-08-21
Publishing country	England
Document type	Journal Article ; Review
ZDB-ID	1305448-x
ISSN	1878-4372 ; 1360-1385
ISSN (online)	1878-4372
ISSN	1360-1385
DOI	10.1016/j.tplants.2023.07.003
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