Biogenesis of Mitochondria in Imbibed Peanut Cotyledons

Biogenesis of mitochondria in germinating peanut cotyledons.

The increase in respiratory activity in germinating peanut cotyledons has been correlated with an actual increase in mitochondria. Using sucrose gradient centrifugation, it was shown that succinoxidase activity is associated with a well-defined band of cell particulates of uniform density, size and ultrastructure. During germination the population of succinoxidase-containing particles increases...

Studies of electron transport in dry and imbibed peanut embryos.

The respiration of isolated peanut (Arachis hypogea) embryos has been studied with dry and wet embryos and mitochondria prepared after various times of imbibition. Dry seeds respire slowly, apparently via a respiratory chain which is deficient in cytochrome c. Cytochrome c-deficient mitochondria have been prepared from the embryos up to 16 hours following imbibition. These mitochondria can meta...

Nucleic Acid, Mitochondria, & Enzyme Changes in Cotyledons of Peanut Seeds during Germination.

Nucleic Acid Metabolism in Peanut Cotyledons.

Peanut Seeds are a uInii(qte material fol the stilud of niucleic aci(l mietal)olism. .\t thle onlset of geriinationl RN.\ syithiesis is iilitiate(l in the cotyledons aui(d the coliteint per cotyle(loni dotilles lby a week aifterplanting (4. 9). Suhsequently the RNA conitenlt raal)idly (leclinies with age of the plant (4). The ini vivo (legra(latioll of W NA is miiatchied lv an increase ill rion...

Fat metabolism in higher plants. I. Biogenesis of higher fatty acids by slices of peanut cotyledons in vitro.

Although considerable research has been conducted in recent years on the mechanisms of fatty acid synthesis and oxidation in animal tissues (1) and in microorganisms (2), no similar studies of higher plants have yet been reported, despite the great importance of fat-storing seeds and fruits in the economy of nature and the value to comparative biochemistry of an understanding of fatty acid biog...