Metabolic Changes in Avena sativa Crowns Recovering from Freezing

Metabolic Changes in Avena sativa Crowns Recovering from Freezing

Extensive research has been conducted on cold acclimation and freezing tolerance of fall-sown cereal plants due to their economic importance; however, little has been reported on the biochemical changes occurring over time after the freezing conditions are replaced by conditions favorable for recovery and growth such as would occur during spring. In this study, GC-MS was used to detect metaboli...

Histological Analysis and 3D Reconstruction of Winter Cereal Crowns Recovering from Freezing: A Unique Response in Oat (Avena sativa L.)

The crown is the below ground portion of the stem of a grass which contains meristematic cells that give rise to new shoots and roots following winter. To better understand mechanisms of survival from freezing, a histological analysis was performed on rye, wheat, barley and oat plants that had been frozen, thawed and allowed to resume growth under controlled conditions. Extensive tissue disrupt...

Assessment Report on Avena Sativa L., Herba and Avena Sativa L., Fructus

Cloning and characterisation of chlorophyll synthase from Avena sativa.

The chlorophyll synthase gene from oat (Avena sativa) was cloned and expressed in Escherichia coli. The deduced amino acid sequence consists of 378 amino acids including a presequence of 46 amino acids. Deletion mutants show that a core protein comprising amino acid residues 88 to 377 is enzymatically active. The sequence of the mature protein shows 85% identity with the chlorophyll synthase of...

Electrophoresis and Electrofocusing of Phytochrome from Etiolated Avena sativa L

R udolf Schendel and W olfhart Rüdiger Botanisches Institut der Universität München Z. Naturforsch. 44c, 12—18 (1989); received November 25, 1988 Microheterogeneity, Pest Sequence, Phytochrome Denaturation, Protein Conformation Phytochrome from etiolated oat seedlings (Avena sativa L.) was investigated by “native” gel electrophoresis and by isoelectric focusing. At pH 8 . 8 the Pfr form migrate...