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A hidden demethylation pathway removes mercury from rice plants and mitigates mercury flux to food chains

2024-01-04Artigo científico Acesso aberto
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datacite.subject.sdg02:Erradicar a Fome
datacite.subject.sdg03:Saúde de Qualidade
datacite.subject.sdg12:Produção e Consumo Sustentáveis
dc.contributor.authorTang, Wenli
dc.contributor.authorBai, Xu
dc.contributor.authorZhou, Yang
dc.contributor.authorSonne, Christian
dc.contributor.authorWu, Mengjie
dc.contributor.authorLam, Su Shiung
dc.contributor.authorHintelmann, Holger
dc.contributor.authorMitchell, Carl P. J.
dc.contributor.authorJohs, Alexander
dc.contributor.authorGu, Baohua
dc.contributor.authorNunes, Luís
dc.contributor.authorLiu, Cun
dc.contributor.authorFeng, Naixian
dc.contributor.authorYang, Sihai
dc.contributor.authorRinklebe, Jörg
dc.contributor.authorLin, Yan
dc.contributor.authorChen, Long
dc.contributor.authorZhang, Yanxu
dc.contributor.authorYang, Yanan
dc.contributor.authorWang, Jiaqi
dc.contributor.authorLi, Shouying
dc.contributor.authorWu, Qingru
dc.contributor.authorOk, Yong Sik
dc.contributor.authorXu, Diandou
dc.contributor.authorLi, Hong
dc.contributor.authorZhang, Xu-Xiang
dc.contributor.authorRen, Hongqiang
dc.contributor.authorJiang, Guibin
dc.contributor.authorChai, Zhifang
dc.contributor.authorGao, Yuxi
dc.contributor.authorZhao, Jiating
dc.contributor.authorZhong, Huan
dc.date.accessioned2026-05-20T14:38:26Z
dc.date.available2026-05-20T14:38:26Z
dc.date.issued2024-01-04
dc.description.abstractDietary exposure to methylmercury (MeHg) causes irreversible damage to 45 human cognition, and is mitigated by photolysis and microbial demethylation of MeHg. 46 Here, we report a hidden pathway of MeHg demethylation independent of light and 47 microorganisms. This natural pathway exists in crops and is driven by reactive oxygen 48 species generated in vivo, rapidly transforming MeHg to inorganic Hg and then 49 eliminating Hg from plants as gaseous Hg0 . Methylmercury concentrations in rice 50 grains would increase by 2.4- to 4.7-fold without this pathway, which equates to IQ 51 losses of 0.01−0.51 points/newborn in major rice consuming countries, corresponding 52 to annual economic losses of $30.7−84.2 billion USD globally. This newly discovered 53 pathway effectively removes Hg from human food webs, playing an important role in 54 exposure mitigation and global Hg cycling.eng
dc.identifier.doi10.1038/s43016-023-00910-x
dc.identifier.issn2662-1355
dc.identifier.urihttp://hdl.handle.net/10400.1/29010
dc.language.isoeng
dc.peerreviewedyes
dc.publisherSpringer Science and Business Media LLC
dc.relation.ispartofNature Food
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectRice
dc.subjectMicrobes
dc.subjectDemethylation
dc.subjectHealth risks
dc.subjectReactive oxygen species
dc.subjectMethylmercury
dc.titleA hidden demethylation pathway removes mercury from rice plants and mitigates mercury flux to food chainseng
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage82
oaire.citation.issue1
oaire.citation.startPage72
oaire.citation.titleNature Food
oaire.citation.volume5
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNameNunes
person.givenNameLuís
person.identifier93800
person.identifier.ciencia-id3112-1FCD-6685
person.identifier.orcid0000-0001-5606-970X
person.identifier.ridM-4647-2013
person.identifier.scopus-author-id7102529511
relation.isAuthorOfPublicationd32d0ac6-6cb6-4f03-afcf-3c80978d469f
relation.isAuthorOfPublication.latestForDiscoveryd32d0ac6-6cb6-4f03-afcf-3c80978d469f

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