Data/hora: 14/06/2024 00:51:33

Biblioteca(s): | Embrapa Mandioca e Fruticultura.
Data corrente: | 26/11/2010
Data da última atualização: | 22/08/2022
Autoria: | PEREIRA, F. M. V.; MILORI, D. M. B. P.; VENANCIO, A. L.; RUSSO, M. de S. T.; MARTINS, P. K.; ASTUA, J. de F.
Afiliação: | Fabíola Manhas Verbi Pereira, CNPDIA; DÉBORA MARCONDES BASTOS PEREIRA MILORI, CNPDIA; André Leonardo Venâncio, USP; Mariana de Sá Tavares Russo, CNPDIA; Polyana Kelly Martins, APTA; JULIANA DE FREITAS ASTUA, CNPMF.
Título: | Evaluation of the effects of Candidatus Liberibacter asiaticus on inoculated citrus plants using laser-induced breakdown spectroscopy (LIBS) and chemometrics tools.
Ano de publicação: | 2010
Fonte/Imprenta: | Talanta, Oxford, v. 83, n. 2, p. 351-356, dez. 2010.
ISSN: | 0039-9140
Idioma: | Inglês
Conteúdo: | This study investigated the organic and inorganic constituents of healthy leaves and Candidatus Liberibacter asiaticus (CLas)-inoculated leaves of citrus plants. The bacteria CLas are one of the causal agents of citrus greening (or Huanglongbing) and its effect on citrus leaves was investigated using laser-induced breakdown spectroscopy (LIBS) combined with chemometrics. The information obtained from the LIBS spectra profiles with chemometrics analysis was promising for the construction of predictive models to identify healthy and infected plants. The major, macro- and microconstituents were relevant for differentiation of the sample conditions. The models were then applied to different inoculation times (from 1 to 8 months). The models were effective in the classification of 82?97% of the diseased samples with a 95% significance level. The novelty of this method was in the fingerprinting of healthy and diseased plants based on their organic and inorganic contents.
Palavras-Chave: | Fingerprint; Huanglongbing; Plant diseases.
Thesagro: | Doença de Planta; Fruta Cítrica.
Categoria do assunto: | X Pesquisa, Tecnologia e Engenharia
Registro original: | Embrapa Mandioca e Fruticultura (CNPMF)
Exemplares: | CNPMF - (27018-1) - UPC - AP - DD -  -  - 12901 - DIS