Data/hora: 02/06/2024 05:23:19

Provedor de dados: | 88
País: | Brazil
Título: | Development and some histochemical aspects of foliar glandular trichomes of Stevia rebaudiana (Bert.) Bert. - Asteraceae
Autores: | MONTEIRO,WALKYRIA ROSSI; CASTRO,MARÍLIA DE MORAES; MAZZONI-VIVEIROS,SOLANGE CRISTINA; MAHLBERG,PAUL GORDON.
Data: | 2001-09-01
Ano: | 2001
Palavras-chave: | Stevia rebaudiana; Asteraceae; Glandular trichomes; Ontogeny; Histochemistry.
Resumo: | The ten-celled biseriate glandular trichome of Stevia rebaudiana (Bert.) Bert.-Asteraceae, found on both leaf surfaces, originates from a single protruding, protodermal cell undergoing an anticlinal division. A subsequent series of periclinal divisions, occurring in acropetal sequence, leads to the formation of the trichome, composed of five pairs of cells, one pair of basal cells, another of stalk cells and three pairs of secretory head cells. Developing, still two-celled glandular trichomes already occur on leaf primordia of the second pair (these primordia measuring, in some cases, ca. 0.30 mm in length), and most of the glandular trichomes are at the mature phase on very young, expanding leaves, for example on those of the sixth pair. The secretory material released by the head cells is stored in the trichome cavity (subcuticular space). Basic histochemical tests reveal that such material is lipophilic (mainly) and hydrophilic in nature.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042001000300013
Editor: | Sociedade Botânica de São Paulo
Relação: | 10.1590/S0100-84042001000300013
Formato: | text/html
Fonte: | Brazilian Journal of Botany  v.24 n.3 2001
Fonte: | info:eu-repo/semantics/openAccess