Endogenous Abscisic Acid Levels in Germinating and Nongerminating Lettuce Seed 12
AUTOR(ES)
Braun, Joseph W.
RESUMO
The concentrations of abscisic acid in Grand Rapids lettuce (Lactuca sativa L.) seeds imbibed under conditions which promote or inhibit germination were determined by electron capture-gas chromatography. The concentration of abscisic acid in dry seeds was 12 to 14 nanograms per 100 milligrams. During 24-hour imbibition, the abscisic acid content diminished more rapidly during conditions which allow germination (25 C in light) than in conditions which inhibited germination (35 C in light or darkness at 25 C). A decrease in endogenous levels of abscisic acid was not always correlated with germination.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=541912Documentos Relacionados
- Endogenous Ethylene and Abscisic Acid Relative to Phytogerontology 12
- Lettuce Seed Germination: Modulation of Pregermination Protein Synthesis by Gibberellic Acid, Abscisic Acid, and Cytokinin 1
- Action of Gibberellic Acid on Lettuce Seed Germination 12
- Seed-Specific Overexpression of an Endogenous Arabidopsis Phytoene Synthase Gene Results in Delayed Germination and Increased Levels of Carotenoids, Chlorophyll, and Abscisic Acid1
- Mode of Action of Gibberellic Acid and Light on Lettuce Seed Germination 12
