Cellular markers indicative of ozone stress on bioindicator plants growing in a tropical environment

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.contributorNúcleo de Pesquisa em Anatomia-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorAlves, Edenise Segala-
Autor(es): dc.creatorMoura, Bárbara Baêsso-
Autor(es): dc.creatorPedroso, Andrea Nunes Vaz-
Autor(es): dc.creatorTresmondi, Fernanda-
Autor(es): dc.creatorMacHado, Silvia Rodrigues-
Data de aceite: dc.date.accessioned2025-08-21T18:21:20Z-
Data de disponibilização: dc.date.available2025-08-21T18:21:20Z-
Data de envio: dc.date.issued2022-05-02-
Data de envio: dc.date.issued2022-05-02-
Data de envio: dc.date.issued2016-08-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.ecolind.2016.03.011-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/234383-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/234383-
Descrição: dc.descriptionOzone (O3) is an oxidative pollutant that causes visible foliar symptoms in sensitive plants. Importantly, cellular markers induced by physiological alterations, including oxidative burst (OB), hypersensitive response-like (HR-like) reactions, and accelerated cell senescence (ACS), precede these symptoms. Because little is known about the effects of ozone in tropical environments, we aimed to identify these cellular markers in Nicotiana tabacum, Ipomoea nil and Psidium guajava growing in an urban area of tropical Sao Paulo, Brazil, and describe the specific physiological alterations that trigger the development of visible symptoms. Cell wall wart-like protrusions, an OB cellular marker, and swelling of thylakoids and mitochondrial membranes, as well as accumulation of plastoglobuli, all markers of ACS, were cell markers common to all species studied. Cellular markers indicating HR-like reaction, as observed in the asymptomatic leaves of N. tabacum and I. nil, are precursors of future development of necrotic areas, featuring the visible symptoms. On the other hand, the main cause of visible symptoms in P. guajava appeared to be the accumulation of phenolic compounds in the mesophyll tissue, an ACS marker. Based on this line of evidence, these bioindicator plants growing in a tropical environment show the damaging effects of O3 pollution, even before visible symptoms develop. Moreover, this damage can be detected through a distinct group of cellular markers.-
Descrição: dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionInstituto de Botânica Núcleo de Pesquisa em Anatomia, Caixa Postal 68041-
Descrição: dc.descriptionUniversidade Estadual Paulista Instituto de Biociências Departamento de Botânica, Caixa Postal 510-
Descrição: dc.descriptionUniversidade Estadual Paulista Instituto de Biociências Departamento de Botânica, Caixa Postal 510-
Formato: dc.format417-424-
Idioma: dc.languageen-
Relação: dc.relationEcological Indicators-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectIpomoea nil-
Palavras-chave: dc.subjectNicotiana tabacum-
Palavras-chave: dc.subjectOxidative stress-
Palavras-chave: dc.subjectPsidium guajava-
Título: dc.titleCellular markers indicative of ozone stress on bioindicator plants growing in a tropical environment-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

Não existem arquivos associados a este item.