Effect of Dehydration on Leakage and Membrane Structure in Lotus corniculatus L. Seeds 1
AUTOR(ES)
McKersie, Bryan D.
RESUMO
Membrane damage as a result of dehydration was studied in Lotus corniculatus L. cv. Carroll seeds which had been pregerminated for 0, 12, and 24 hours prior to dehydration. During reimbibition, desiccation-tolerant (0- and 12-hour) seeds leaked relatively low quantities of all solutes (total electrolytes, potassium, phosphate, sugar, amino acid, and protein). Desiccation-sensitive (24-hour) seeds leaked higher levels, but evidence of selective permeability remained. Membrane damage was not manifested as a complete removal of the diffusion barrier, although its permeability properties were dramatically altered. Consequently, the plasmalemma was not ruptured or torn by the dehydration treatment, but a more subtle structural alteration occurred.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=440590Documentos Relacionados
- Seleção de Lotus corniculatus L. tolerante ao alumínio
- Dehydration Effects on Imbibitional Leakage from Desiccation-Sensitive Seeds 1
- Lotus corniculatus L. cv. São Gabriel: análise fitoquímica e atividade biológica
- Performance of Lotus corniculatus L. genotypes submitted to cutting interval: subsidies to a breeding program
- Seleção de populações de Lotus corniculatus L. com maior tolerância ao alumínio em solução nutritiva