Data/hora: 20/06/2024 16:14:47

Biblioteca(s): | Embrapa Mandioca e Fruticultura.
Data corrente: | 16/02/2000
Data da última atualização: | 16/02/2000
Autoria: | FISHER, D. B.; WANG, N.
Afiliação: | Departiment of Botany, Washington State University, Pullman, Washington.
Título: | Sucrose concentration gradients along the post-phloem transport pathway in the maternal tissues of developing wheat grains.
Ano de publicação: | 1995
Fonte/Imprenta: | Plant Physiol., v.109, p.587-592, 1995.
Idioma: | Inglês
Conteúdo: | Sucrose concentrations were measured in serial frozen sections of the post-phloem transport pathway in developing wheat (Triticum aestivum L.) grains. In normally importing grains, there was an approximately linear concentration gradient along the pathway, with a difference between the ends of the pathway of about 180 mM. This indicates an unusually low resistance for cell-to-cell transport, due perhaps to the large size-exclusion limit for the pathway. However, the existence of concentration gradients raises presently unresolvable questions about the relative contributions of diffusion versus bulk flow t transport within the symplast.
Categoria do assunto: | --
Registro original: | Embrapa Mandioca e Fruticultura (CNPMF)
Exemplares: | CNPMF - (17679-1) - ADD - SP - -- - S11741 -  - S11741 - DIS