Ectotherms in northern latitudes are seasonally exposed to cold temperatures. To improve survival under cold stress, they use diverse mechanisms to increase temperature resistance and prevent tissue damage. The accumulation of anti-freeze proteins that improve cold hardiness occurs in diverse species including plants, arthropods, fish, and amphibians. We previously identified an Ixodes scapular...

Palms are beneficial for urban ornamental horticulture, since they symbolize the tropics, but only few adapted to temperate climates. Our objective was monitor responses of leaves cold reflected by changes in chlorophyll fluorescence Trachycarpus geminisectus, T. nanus, takil, ukhrulensis, wagnerianus species with use a fluorometer during fall 2018. results indicate that there gradual decline m...

Water supply and day length were varied in cold hardiness studies of red osier dogwood plants (Cornus stolonifera Michx.). The frost killing temperature, the content and freezing of stem cortical tissue water along with soil moisture content and tension were evaluated. Seven days of water stress in long and short day photoperiod regimes caused a rapid decrease in soil moisture content and plant...

Rose is the most economically important ornamental plant. However, cold stress seriously affects survival and regrowth of garden roses in northern regions. Cold acclimation was studied using two genotypes (Rosa wichurana R. hybrida ‘Yesterday’) selected from a rose breeding program. During winter season (November to April), hardiness stems, soluble sugar content, expression dehydrins related ke...

A cDNA library of Chinese wild Vitis amurensis, which is the most cold-resistant species in the genus Vitis, was constructed using young leaves of seedlings of the clone Heilongjiang potted and subjected to cold stress. The leaves were harvested at various times after cold stress for total RNA extraction, which was used to generate expressed sequence tags (ESTs). The titer of the original libra...