EFFECTS OF DELTAMETHRIN ON FIELD-GROWN POTATO PLANTS - BIOCHEMICAL AND ULTRASTRUCTURAL ASPECTS

• Tipo: Artigo em Revista Científica Internacional
• Data: 1993

Autores

FIDALGO, F (Autor) FCUP; SANTOS, I (Autor) Outra; SALEMA, R (Autor) FCUP

Revista

Título: Annals of Botany

Vol. 72

Páginas: 263-267

ISSN: 0305-7364

Editora: Oxford University Press

Indexação

ISI Web of Knowledge - 6 Citações

Scopus - 8 Citações

Classificação Científica

FOS: Ciências exactas e naturais > Ciências biológicas

Outras Informações

ID Authenticus: P-001-MNW

DOI: 10.1006/anbo.1993.1107

Abstract (EN): The effects of repeated spraying of field grown plants of Solanum tuberosum L. with deltamethrin 24, 41 and 55 d after emergence, on chlorophyll level, oxygen uptake, RuBisCo activity and leaf ultrastructure, were studied. Chlorophyll amount increased in treated plants after the second and third spraying, whereas RuBisCo activity showed a higher value than in the controls only after the last treatment. In contrast, the respiratory activity was stimulated by the first spraying and no significant differences were found with the ensuing treatments. The general ultrastructure of mesophyll cells was not altered by deltamethrin, but morphometric analysis of electron micrographs showed that the fractional volume of chloroplasts and starch in the treated leaves were consistently lower than in controls. The biochemical and ultrastructural data suggested that the vegetative cycle of the sprayed plants had been extended.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 5