Journal article
Compartmentalization and Excretion of 2,4,6-Tribromophenol Sulfation and Glycosylation Conjugates in Rice Plants
Environmental science & technology, Vol.55(5), pp.2980-2990
03/02/2021
DOI: 10.1021/acs.est.0c07184
PMCID: PMC8232829
PMID: 33544574
Abstract
The most environmentally abundant bromophenol congener, 2,4,6-tribromophenol (2,4,6-TBP, 6.06 μmol/L), was exposed to rice for 5 d both in vivo (intact seedling) and in vitro (suspension cell) to systematically characterize the fate of its sulfation and glycosylation conjugates in rice. The 2,4,6-TBP was rapidly transformed to produce 6 [rice cells (3 h)] and 8 [rice seedlings (24 h)] sulfated and glycosylated conjugates. The predominant sulfation conjugate (TP408, 93.0–96.7%) and glycosylation conjugate (TP490, 77.1–90.2%) were excreted into the hydroponic solution after their formation in rice roots. However, the sulfation and glycosylation conjugates presented different translocation and compartmentalization behaviors during the subsequent Phase III metabolism. Specifically, the sulfated conjugate could be vertically transported into the leaf sheath and leaf, while the glycosylation conjugates were sequestered in cell vacuoles and walls, which resulted in exclusive compartmentalization within the rice roots. These results showed the micromechanisms of the different compartmentalization behaviors of 2,4,6-TBP conjugates in Phase III metabolism. Glycosylation and sulfation of the phenolic hydroxyl groups orchestrated by plant excretion and Phase III metabolism may reduce the accumulation of 2,4,6-TBP and its conjugates in rice plants.
Details
- Title: Subtitle
- Compartmentalization and Excretion of 2,4,6-Tribromophenol Sulfation and Glycosylation Conjugates in Rice Plants
- Creators
- Qing Zhang - Beijing Normal UniversityWenqian Kong - School of Environment, Hangzhou Institute for Advanced StudyLinfeng Wei - School of Environment, Hangzhou Institute for Advanced StudyXingwang Hou - School of Environment, Hangzhou Institute for Advanced StudyQianchi Ma - School of Environment, Hangzhou Institute for Advanced StudyYanna Liu - School of Environment, Hangzhou Institute for Advanced StudyYadan Luo - School of Environment, Hangzhou Institute for Advanced StudyChunyang Liao - School of Environment, Hangzhou Institute for Advanced StudyJiyan Liu - School of Environment, Hangzhou Institute for Advanced StudyJerald L Schnoor - Department of Civil and Environmental EngineeringGuibin Jiang - School of Environment, Hangzhou Institute for Advanced Study
- Resource Type
- Journal article
- Publication Details
- Environmental science & technology, Vol.55(5), pp.2980-2990
- DOI
- 10.1021/acs.est.0c07184
- PMID
- 33544574
- PMCID
- PMC8232829
- NLM abbreviation
- Environ Sci Technol
- ISSN
- 0013-936X
- eISSN
- 1520-5851
- Publisher
- American Chemical Society
- Grant note
- DOI: 10.13039/100000066, name: National Institute of Environmental Health Sciences, award: P42ES013661-12; DOI: 10.13039/501100002855, name: Ministry of Science and Technology of the People's Republic of China, award: 2018YFC1800702; DOI: 10.13039/501100002858, name: China Postdoctoral Science Foundation, award: 2018M631600; DOI: 10.13039/501100001809, name: National Natural Science Foundation of China, award: 21527901, 21806171
- Language
- English
- Date published
- 03/02/2021
- Academic Unit
- Civil and Environmental Engineering; Occupational and Environmental Health; Iowa Superfund Research Program
- Record Identifier
- 9984077373402771
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