scholarly journals Putrescine Is Involved in Arabidopsis Freezing Tolerance and Cold Acclimation by Regulating Abscisic Acid Levels in Response to Low Temperature

2008 ◽  
Vol 148 (2) ◽  
pp. 1094-1105 ◽  
Author(s):  
Juan C. Cuevas ◽  
Rosa López-Cobollo ◽  
Rubén Alcázar ◽  
Xavier Zarza ◽  
Csaba Koncz ◽  
...  
Keyword(s):  
Abscisic Acid ◽  
Low Temperature ◽  
Cold Acclimation ◽  
Freezing Tolerance

scholarly journals Foliar Applied Abscisic Acid Increases ‘Chardonnay’ Grapevine Bud Freezing Tolerance during Autumn Cold Acclimation

2015 ◽  
Vol 25 (3) ◽  
pp. 293-305 ◽  
Author(s):  
Imed E. Dami ◽  
Shouxin Li ◽  
Patricia A. Bowen ◽  
Carl P. Bogdanoff ◽  
Krista C. Shellie ◽  
...  
Keyword(s):  
Abscisic Acid ◽  
Cold Acclimation ◽  
Freezing Tolerance ◽  
Foliar Application ◽  
Economic Loss ◽  
The United States ◽  
Production Costs ◽  
Cold Weather ◽  
Weather Events ◽  
Berry Composition

Economic loss due to cold weather events is a major constraint to winegrape (Vitis vinifera) production and wine-related industries where extreme and/or fluctuating winter temperatures induce injury and require remedial retraining and replanting increases production costs and lowers yield and fruit quality. The purpose of this study was to determine whether a foliar application of abscisic acid (ABA) could increase the freezing tolerance (FT) of field-grown, ‘Chardonnay’ winegrape and whether its effectiveness can be influenced by the phenological timing of the application. Mature ‘Chardonnay’ grapevines were treated with a foliar application of ABA at a concentration of 500 mg·L−1 at vine phenological stages corresponding to 50% véraison, postvéraison, and postharvest. Results from field trial sites located in four distinct winegrape production regions in the United States (Idaho and Ohio) and Canada (British Columbia and Ontario) showed that foliar application of ABA increased bud FT, primarily during autumn cold acclimation. Foliar ABA application had no consistent influence on bud FT in midwinter or during spring deacclimation, or on percent budburst in spring. Vine phenological stage at the time of ABA foliar application influenced ABA effectiveness, although results were inconsistent among locations. At most locations, applications made at véraison or postvéraison were more effective than applications made postharvest. No phytotoxic response or adverse changes in yield or berry composition were detected in response to ABA application. The consistent increase in bud FT during autumn cold acclimation observed at all trial locations in this study indicates that foliar ABA, applied at véraison or postvéraison, can reduce the risk of economic loss due to cold injury in production regions with frequent early autumn cold weather events.

scholarly journals Bermudagrass Freezing Tolerance Associated with Abscisic Acid Metabolism and Dehydrin Expression during Cold Acclimation

2008 ◽  
Vol 133 (4) ◽  
pp. 542-550 ◽  
Author(s):  
Xunzhong Zhang ◽  
Kehua Wang ◽  
Erik H. Ervin
Keyword(s):  
Abscisic Acid ◽  
Cold Acclimation ◽  
Freezing Tolerance ◽  
Cold Hardiness ◽  
Management Practices ◽  
Cynodon Dactylon ◽  
Freezing Injury ◽  
Exogenous Aba ◽  
Aba Metabolism ◽  
Aba Content

Recent advances in bermudagrass [Cynodon dactylon (L.) Pers. var. dactylon] breeding and cultural management practices have enabled its use as a sports surface in U.S. Department of Agriculture cold hardiness zones 5 and 6. Use of these more cold-hardy bermudagrass cultivars further into transition- and cool-season zones increases the probability of freezing injury and increases the need for an improved understanding of physiological responses to chilling and freezing temperatures. Abscisic acid (ABA) has been shown to increase during cold acclimation (CA) and play a role in dehydration tolerance. This study investigated changes in ABA metabolism and dehydrin expression during CA and their association with freezing tolerance in four bermudagrass cultivars. Two cold-tolerant (‘Patriot’ and ‘Riviera’) and two relatively cold-sensitive (‘Tifway’ and ‘Princess’) cultivars were either subjected to CA at 8 °C day/4 °C night with a light intensity of 250 μmol·m−2·s−1 over a 10-h photoperiod for 21 days or maintained at 28 °C day/24 °C night over a 12-h photoperiod. In a separate study, exogenous ABA at 0, 50, 100, and 150 μm was applied to ‘Patriot’ bermudagrass without CA. ABA content in leaf and stolon tissues increased substantially during the first week of CA and remained relatively stable thereafter. ‘Patriot’ and ‘Riviera’ had greater ABA content and less stolon electrolyte leakage (EL) relative to ‘Tifway’ and ‘Princess’. Expression of a 25 kDa dehydrin protein increased during CA in all four cultivars. A significant correlation was found between ABA content and freezing tolerance. Exogenously applying ABA to ‘Patriot’ at 50, 100, and 150 μm significantly increased endogenous ABA content and the 25 kDa dehydrin expression and reduced stolon EL. The results suggest that alteration of ABA metabolism during CA is closely associated with freezing tolerance. Selection and use of cultivars with substantial accumulation of ABA and certain dehydrins during CA or in response to exogenous ABA could improve bermudagrass persistence in transition zone climates.

scholarly journals Physiological and Biochemical Processes of Magnolia wufengensis in Response to Foliar Abscisic Acid Application during Natural Cold Acclimation

HortScience ◽  
2015 ◽  
Vol 50 (3) ◽  
pp. 387-394 ◽  
Author(s):  
Yang Yang ◽  
Zhongkui Jia ◽  
Faju Chen ◽  
Ziyang Sang ◽  
Luyi Ma
Keyword(s):  
Abscisic Acid ◽  
Cold Acclimation ◽  
Freezing Tolerance ◽  
Foliar Application ◽  
Soluble Sugars ◽  
Northern China ◽  
Freezing Injury ◽  
Exogenous Aba ◽  
Physiological And Biochemical ◽  
Magnolia Wufengensis

The rare species Magnolia wufengensis frequently suffers from freezing injury in northern China. To investigate the influence of exogenous abscisic acid (ABA) application on the natural cold acclimation of M. wufengensis, physiological and biochemical changes in field-grown M. wufengensis seedlings subjected to foliar ABA treatments at four concentrations (0, 300, 600, and 900 mg·L−1) were evaluated from Sept. 2012 to Jan. 2013. The optimum foliar application concentrations of ABA for M. wufengensis were between 600 and 900 mg·L−1, which led to faster shoot growth cessation, leaf senescence, and development rates of bud endodormancy level and shoot freezing tolerance. The improved freezing tolerance under exogenous ABA application was associated with promoted dehydration and accumulation of proline, soluble protein, and certain soluble sugars such as glucose and fructose. Foliar ABA treatments initiated a cascade of steps for advancing the cold acclimation process of M. wufengensis. We suggest that exogenous ABA application may be used on M. wufengensis grown in northern China, where there are short growing seasons and early fall frost events.

scholarly journals The Arabidopsis 14-3-3 Protein RARE COLD INDUCIBLE 1A Links Low-Temperature Response and Ethylene Biosynthesis to Regulate Freezing Tolerance and Cold Acclimation

2014 ◽  
Vol 26 (8) ◽  
pp. 3326-3342 ◽  
Author(s):  
Rafael Catalá ◽  
Rosa López-Cobollo ◽  
M. Mar Castellano ◽  
Trinidad Angosto ◽  
José M. Alonso ◽  
...  
Keyword(s):  
Low Temperature ◽  
Cold Acclimation ◽  
Freezing Tolerance ◽  
Temperature Response ◽  
Ethylene Biosynthesis

Effects of abscisic acid (ABA) and ABA analogs on freezing tolerance, low-temperature growth, and flowering in rapeseed

1994 ◽  
Vol 13 (4) ◽  
pp. 235-241 ◽  
Author(s):  
Ronald W. Wilen ◽  
Lawrence V. Gusta ◽  
Bo Lei ◽  
Suzanne R. Abrams ◽  
Bruce E. Ewan
Keyword(s):  
Abscisic Acid ◽  
Low Temperature ◽  
Freezing Tolerance ◽  
Temperature Growth ◽  
Low Temperature Growth ◽  
Aba Analogs
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