Results 21 to 30 of about 739 (182)

Warming Reduces Cold Hardiness of Boreal Plants but Damage Risk Varies by Species and Season. [PDF]

Glob Chang Biol
Whole ecosystem warming did not alter maximum midwinter cold hardiness of four boreal peatland species, but delayed fall acclimation and especially accelerated spring deacclimation. However, warming only increased cold damage risk in late winter and spring and for three of the four species, suggesting potential shifts in boreal forest composition ...
Campos-Arguedas F, Kirchhof E, North MG, Pearson KJ, Guilliams MP, Hanson PJ, Kovaleski AP.   +6 more
europepmc   +2 more sources

Chilling Accumulation Shapes Transcriptomic Responses to Warming Exposure During Grapevine Deacclimation. [PDF]

Physiol Plant
ABSTRACT During winter, grapevine (Vitis vinifera) bud dormancy and cold hardiness are regulated by complex interactions between chilling accumulation and warm temperature cues. However, the molecular mechanisms underlying physiological transitions during winter remain poorly understood.
Wang H, Londo JP.
europepmc   +2 more sources

Brassinosteroids negatively regulate barley deacclimation tolerance via modulation of chloroplast gene expression and cell hydration [PDF]

Scientific Reports
Global warming may cause overwintering plants to lose tolerance to low temperatures owing to de-acclimation caused by winter temperature fluctuations. The effect of elevated temperatures is regulated by the endogenous levels of phytohormones, including ...
Ewa Pociecha, Magdalena Wójcik-Jagła, Agata Daszkowska-Golec, Michał Dziurka, Maciej T. Grzesiak, Damian Gruszka   +5 more
doaj   +2 more sources

Cold hardiness dynamics predict budbreak and associated low-temperature threats in grapevine. [PDF]

New Phytol
Summary Dormant buds of temperate woody perennial plants must attain cold hardiness to survive winters and timely lose it in spring to break bud while avoiding damage from low temperatures and late frosts. Therefore, we asked: Can a cold hardiness model be used to predict budbreak?
Campos-Arguedas F, Kirchhof E, North MG, Londo JP, Bates T, van Leeuwen C, Destrac-Irvine A, Bois B, Kovaleski AP.   +8 more
europepmc   +2 more sources

Mid-winter de-acclimation triggers a stress-like response in leaves of cold-acclimated wheat (Triticum aestivum L.) at the tillering stage [PDF]

BMC Plant Biology
Background Active de-acclimation, triggered by mid-winter warm spells, threatens winter wheat survival under freezing conditions. This study investigated the physiological and molecular mechanisms underlying the response to active de-acclimation in eight
Magdalena Wójcik-Jagła, Ipsa Bani, Martin Kovacik, Ales Pecinka, Piotr Waligórski, Marcin Rapacz   +5 more
doaj   +2 more sources

Cold hardiness mechanisms and modeling: existing approaches and future avenues. [PDF]

New Phytol
Summary Cold hardiness models are useful tools to predict cold damage in plants, such as those produced by unseasonal temperature cycles or by increased cold exposure. Although development of these models started about five decades ago, their applications remain limited.
Charrier G, Kovaleski AP, Wenden B, Hänninen H.   +3 more
europepmc   +2 more sources

Deacclimation-Induced Changes of Photosynthetic Efficiency, Brassinosteroid Homeostasis and BRI1 Expression in Winter Oilseed Rape (Brassica napus L.)-Relation to Frost Tolerance. [PDF]

Int J Mol Sci, 2022
The objective of this study was to answer the question of how the deacclimation process affects frost tolerance, photosynthetic efficiency, brassinosteroid (BR) homeostasis and BRI1 expression of winter oilseed rape.
Stachurska J, Rys M, Pociecha E, Kalaji HM, Dąbrowski P, Oklestkova J, Jurczyk B, Janeczko A.   +7 more
europepmc   +2 more sources

Memory in the wall: expanding our understanding of the roles of plant cell walls. [PDF]

New Phytol
Summary The plant cell wall, while providing mechanical support to cells, also dynamically adjusts its composition and structure in response to cellular and environmental cues. Recent findings indicate that plants exposed to cold stress alter the composition of cell wall polysaccharides and that this altered status primes the plants to overcome future,
Shikata H, Yoshinari A, Asaoka M, Takahashi D.   +3 more
europepmc   +2 more sources

Insight into Hormonal Homeostasis and the Accumulation of Selected Heat Shock Proteins in Cold Acclimated and Deacclimated Winter Oilseed Rape (Brassica napus L.)

Agriculture, 2023
The aim of the current work was to characterize disturbances in the hormonal balance and changes in the accumulation of the protective heat shock proteins (HSP) as a result of deacclimation in a few cultivars of oilseed rape.
Julia Stachurska, Iwona Sadura, Magdalena Rys, Michał Dziurka, Anna Janeczko   +4 more
doaj   +1 more source

Transcriptome Analysis of Diurnal and Nocturnal-Warmed Plants, the Molecular Mechanism Underlying Cold Deacclimation Response in Deschampsia antarctica. [PDF]

Int J Mol Sci, 2023
Warming in the Antarctic Peninsula is one of the fastest on earth, and is predicted to become more asymmetric in the near future. Warming has already favored the growth and reproduction of Antarctic plant species, leading to a decrease in their freezing ...
López D, Larama G, Sáez PL, Bravo LA.
europepmc   +2 more sources