Evaluation of the effects of Candidatus Liberibacter asiaticus on inoculated citrus plants using laser-induced breakdown spectroscopy (LIBS) and chemometrics tools.
Talanta
; 83(2): 351-6, 2010 Dec 15.
Article
en En
| MEDLINE
| ID: mdl-21111145
ABSTRACT
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.
Texto completo:
1
Bases de datos:
MEDLINE
Asunto principal:
Rhizobiaceae
/
Espectrofotometría
/
Técnicas de Química Analítica
/
Citrus
/
Hojas de la Planta
Tipo de estudio:
Prognostic_studies
Idioma:
En
Revista:
Talanta
Año:
2010
Tipo del documento:
Article
País de afiliación:
Brasil