Results 171 to 180 of about 1,433 (204)

Cold Acclimation and Deacclimation of Shoots and Roots of Conifer Seedlings

2001
Conifers that are adapted to grow in regions where marked annual temperature changes are observed have developed physiological mechanisms that enable them to alternate their growth and rest periods in phase with the climate, so they exhibit a strong periodicity in cold hardiness. Cold acclimation is the transition from a non-hardy state to a hardy one.
Francine J. Bigras, Aija Ryyppö, Anders Lindström, Eva Stattin   +3 more
openaire   +1 more source

Deacclimation may be crucial for winter survival of cereals under warming climate

Plant Science, 2017
Climate warming can change the winter weather patterns. Warmer temperatures during winter result in a lower risk of extreme freezing events. On the other hand the predicted warm gaps during winter will decrease their freezing tolerance. Both contradict effects will affect winter survival but their resultant effect is unclear.
Marcin, Rapacz, Barbara, Jurczyk, Monika, Sasal   +2 more
openaire   +2 more sources

Cold acclimation, deacclimation and memory in Arabidopsis [PDF]

, 2018
Plants from temperate regions can be cold acclimated by exposure to low, but non-freezing temperatures resulting in improved freezing tolerance. Whereas the molecular and metabolic basis of cold acclimation has been investigated in detail, little is known about the molecular regulation of deacclimation of cold acclimated plants under warm conditions ...
K Hincha, Dirk, Schaarschmidt, Stephanie, Fischer, Axel, Erban, Alexander, Pagter, Majken, Mubeen, Umarah, Walther, Dirk, Giavalisco, Patrick, Kopka, Joachim, Sprenger, Heike, Zuther, Ellen   +10 more
openaire  

Winter survival and deacclimation of perennials under warming climate: physiological perspectives

Physiologia Plantarum, 2012
Appropriate timing and rate of cold deacclimation and the ability to reacclimate are important components of winter survival of perennials in temperate and boreal zones. In association with the progressive increase in atmospheric CO2, temperate and boreal winters are becoming progressively milder, and temperature patterns are becoming irregular with ...
Pagter, Majken, Arora, Rajeev
openaire   +3 more sources

Examination of Cold Deacclimation Sensitivity of Annual Bluegrass and Creeping Bentgrass

Crop Science, 2014
ABSTRACTAnnual bluegrass (Poa annua L.) (AB) frequently exhibits increased susceptibility to winter injury compared to other cool‐season turfgrass species such as creeping bentgrass (Agrostis stolonifera L.) (CB). Interspecific differences in winter survival of these two species may be associated with enhanced sensitivity of AB to decreases in freezing
Lindsey Hoffman, Michelle DaCosta, J. Scott Ebdon   +2 more
openaire   +1 more source

Memory of long-term cold acclimation in deacclimated Wistar rats

Journal of Thermal Biology, 2006
Abstract Long-term cold exposure (10 °C for 11weeks) led to hyperplasia of brown adipose tissue (BAT) in rats. After deacclimation (25 °C for 2 weeks, after 10 °C for 9 weeks), BAT retained almost the same mass as in cold acclimation, and lipid content and droplet size decreased slightly, although the droplets fused with each other.
Kazuko Hori, Tohru Ishigaki, Katsuhiro Koyama, Hidenori Otani, Naoyuki Kanoh, Tohru Tsujimura, Nobuyuki Terada, Seiki Hori   +7 more
openaire   +1 more source

Ethylene and ethane evolution during cold acclimation and deacclimation of ponderosa pine

Canadian Journal of Forest Research, 1991
Greenhouse container-grown ponderosa pine (Pinusponderosa var. scopulorum Engelm.) were cold acclimated and deacclimated in growth chambers during a 19-week regime. Seedling cold hardiness, bud dormancy, and ethylene and ethane evolution from excised needles were measured weekly.
Karen E. Burr, Stephen J. Wallner, Richard W. Tinus   +2 more
openaire   +1 more source

Comparative analysis of gene expression under cold acclimation, deacclimation and reacclimation in Arabidopsis

Physiologia Plantarum, 2014
Cold acclimated plants show an elevated tolerance against subsequent cold stress. Such adaptation requires alterations in gene expression as well as physiological changes. We were interested in gene expression changes at the transcriptional level during adaptation processes.
Youn-Jung, Byun, Mi-Young, Koo, Hye-Joon, Joo, Young-Mie, Ha-Lee, Dong-Hee, Lee   +4 more
openaire   +2 more sources

Deacclimation and reacclimation of cold-hardy plants: Current understanding and emerging concepts

Plant Science, 2006
The abilities of cold-hardy plants to resist deacclimation during transient warm spells and to reacclimate when cold temperatures return are significant for winter survival. Yet compared to the volume of research on the biology of cold acclimation, relatively little is known about how plants maintain and/or reacquire cold hardiness in late winter and ...
Scott R. Kalberer, Michael Wisniewski, Rajeev Arora   +2 more
openaire   +1 more source

Timing of deacclimation affects the ability to recover from simulated winter herbivory

Plant Ecology, 1998
The ability of Vaccinium myrtillus L. to recover from simulated winter herbivory has been investigated on different plants which had been exposed to three elevated temperatures (5 °C, 10 °C or 20 °C) for four weeks in a greenhouse environment. After herbivory, number and length of new aerial shoots and number of leaves/shoot increased faster in plants ...
Anne Tolvanen, Kari Taulavuori
openaire   +1 more source