Development of Microbodies in Sunflower Cotyledons and Castor Bean Endosperm during Germination 1
AUTOR(ES)
Schnarrenberger, C.
RESUMO
In cotyledons of sunflower seedlings glyoxysomal and peroxisomal enzymes exhibit different rates of development during germination. The total activity of isocitrate lyase, a glyoxysomal marker enzyme, rapidly increased during the first 3 days, and then decreased 89% by day 9. Exposure to light accelerated this decrease only slightly. The specific activity of glyoxysomal enzymes (malate synthetase, isocitrate lyase, citrate synthetase, and aconitase) in the microbody fraction from sucrose density gradients increased between days 2 and 4 about 2- to 3-fold, and thereafter it remained about constant in light or darkness.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=396907Documentos Relacionados
- Lipase Activities in Castor Bean Endosperm during Germination 1
- Respiratory Changes During Seed Germination. Histological Distribution of Respiratory Enzymes and Mobilization of Fat Reserves in Castor Bean Endosperm and Peanut Cotyledons1
- Isolation of Plastids from Sunflower Cotyledons during Germination 1
- Studies on Seeds: V. Microbodies, Glyoxysomes, and Ricinosomes of Castor Bean Endosperm 12
- Protein Bodies from the Endosperm of Castor Bean: Subfractionation, Protein Components, Lectins, and Changes during Germination 1