English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Deciduous trees vary in their ability to survive low winter temperatures. Among species studied, two distinct responses to freezing have been described: deep supercooling and extracellular freezing. The tissue characteristics that account for these different responses have not been identified, but it has been proposed that properties of the cell wall distinguish species that supercool from those that do not. Our present objective was to analyze proteins from the cell walls of  Cornus sericea , an extremely freeze-tolerant species that does not supercool. Twigs were collected throughout the year. The bark was removed, and the remaining wood was frozen in LN 2 , freeze dried, and ground into a fine powder. Modifications of published protocols were used for the isolation of total proteins and cell wall proteins. The proteins in the cell wall fraction constituted only a small portion of the total proteins in wood ((&lt;2%). SDS gel electrophoresis established at a single band corresponding to a 23-kDa protein was the predominant component in an extract from twigs in winter. The quantity of 23-kDa protein within the cell wall fraction varied with season. Levels were highest in winter, were reduced in spring, not detectable in summer, and increased in fall. Further analysis, using 2D gel electrophoresis, has shown that the 23-kDa band contains several proteins having similar MW and basic PI These proteins are glycosylated, and a partial amino acid sequence of one protein has been obtained.

Characterization of a 23-kDa Protein from the Wood of Cornus sericea, whose Accumulation is Associated with Seasonal Changes in Cold Hardiness