Plants vary greatly in their ability to survive freezing temperatures. At one extreme are plants from tropical regions that have virtually no capacity to survive even the slightest freeze. In contrast, herbaceous plants from temperate regions generally survive freezing temperatures ranging from 25°C to 230°C, depending on the species, whereas perennials in the boreal forests routinely survive w...

The present review discusses the molecular mechanisms of injury caused by low temperatures and/or freezing. is intended mainly for insect environmental physiologists who focus on effects temperatures. successively (1) structure and function macromolecules; (2) freezing cells macromolecules (3) damage during thawing post-thaw. shows that primarily occurs at level in terms to proteins, nucleic ac...

in this study, accumulation of h2o2, malondialdehyde (mda) (as cold-induced oxidative stress indicators), the transcript levels of dehydrin and beta-glucosidase genes (involved in metabolic responses) was evaluated in chickpea cv. jam, using qrt-pcr during control, cold acclimation (ca), cold stress (cs), recovery, and freezing phases. results showed the existence of wide range of genetic capac...

Freeze-induced cell tensions were determined by cell water relations in leaves of broadleaf evergreen species and cell cultures of grapes (Vitis spp.) and apple (Malus domestica). Cell tensions increased in response to cold acclimation in leaves of broadleaf evergreen species during extracellular freezing, indicating a higher resistance to cell volume changes during freezing in cold-hardened le...

Due to its intrinsically interesting nature and importance to agriculture, considerable effort has been directed at understanding the phenomenon of “cold acclimation,” the process whereby certain plants increase in freezing tolerance upon exposure to low temperature. By 1980, thousands of research articles had been published on the topic and significant insights had been gained, including the f...