<b>Year season on epicuticular waxes in leaves of <i>Echinodorus grandiflorus</i> (Cham. & Schltdl.) Micheli (Alismataceae)</b>

Autores

  • Walderez Moreira Joaquim Universidade do Vale do Paraíba - UNIVAP, 11244-000, São José dos Campos, SP, Brazil
  • Elizabeth Orika Ono Instituto de Biociências, UNESP - Univ Estadual Paulista, Departamento de Botânica, , C.P. 510, 18618-000, Botucatu, SP, Brazil
  • Maria Luiza Faria Salatino Universidade de São Paulo – USP, Departamento de Botânica, Instituto de Biociências, C.P. 11461, 05422-970, São Paulo, SP, Brazil
  • João Domingos Rodrigues Instituto de Biociências, UNESP - Univ Estadual Paulista, Departamento de Botânica, , C.P. 510, 18618-000, Botucatu, SP, Brazil

Resumo

The paper aimed to study the influence of different seasons of the year on epicuticular waxes in Echinodorus grandiflorus plants and to analyze the profile of n-alkanes in epicuticular waxes. The experiment used adventitious plantlets from the flower stem and approximately 10-cm-tall adventitious plantlets with an average of 4 to 5 leaves, planted in 10-liter pots containing a 40% soil, 40% rice hulls, and 20% vermicompost mixture. E. grandiflorus presented an intermediary profile between terrestrial and aquatic plants, with a main homologue C27 (heptacosane), followed by C25 (pentacosane) and C29 (nonacosane). The studies presented here provide information about ecological aspects and chemical and mechanical defenses of Echinodorus grandiflorus.

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Publicado

2010-05-24

Edição

Seção

Artigos originais = Original Articles