Physiological and biochemical characterization of bud dormancy: Evolution of carbohydrate and antioxidant metabolisms and hormonal profile in a low chill peach variety

Hernández, José Antonio; Díaz‐Vivancos, Pedro; Martínez-Sánchez, Gema; Alburquerque, Nuria; Martínez, Domingo; Barba‐Espín, Gregorio; Acosta‐Motos, José Ramón; Carrera, Esther; García-Brunton, J.

doi:10.1016/j.scienta.2021.109957

Cited by 33 publications

(53 citation statements)

References 52 publications

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“…The decline in temperature and photoperiod during winter induces vital biological processes during dormancy that ultimately affect plant re-growth in spring [54]. This phenomenon was extensively studied from different perspectives [11,14,55] as a type of plant resistance to severe reduction in temperature [15]. During dormancy, trees show no visible growth and minimize all physiological processes during winter, and eventually resume growth in spring [11].…”

Section: Understanding the Role Dormancymentioning

confidence: 99%

“…Extended dormancy could also occur as a result of hormonal imbalance such as growth promoting hormones, gibberellins, and growth retardants (e.g., abscisic acid) even under suitable weather conditions. This event results in stopping plant growth and blooming (para-dormancy) [14,18]. Dormancy can also occur when insufficient chilling requirements in winter or warm temperature in spring causes an extended dormancy (endo-dormancy) [57,60].…”

Section: Understanding the Role Dormancymentioning

confidence: 99%

“…Dormancy can also occur when insufficient chilling requirements in winter or warm temperature in spring causes an extended dormancy (endo-dormancy) [57,60]. This event is considered the most limiting blooming factor in deciduous fruit trees and may lead to reduced fruit set with increased percentage of malformed fruit affecting total fruit yield [14]. Therefore, the physiological, biochemical, and molecular aspects of flower bud dormancy for temperate fruit species are essential factors in successful fruit production, especially under climate change conditions [61].…”

Section: Understanding the Role Dormancymentioning

confidence: 99%

“…It was observed that GA4 application can compensate for chilling requirements and accelerate bud break in Japanese apricot through the inductive expression of important metabolites (e.g., galactose, glyoxylate, dicarboxylate, starch, sucrose) involved with energy metabolism and oxidation-reduction reactions (redox system) [96,97]. The complete series of bud dormancy starting from bud formation to flowering has been thoroughly described for various deciduous fruit crops [14,22,88,93,[98][99][100][101][102][103][104][105].…”

Section: Some Aspects Of the Mechanism Of Dormancy Breakingmentioning

confidence: 99%

“…Dormancy, as a plant developmental phase, occurs in deciduous fruit trees to overcome the unfavorable environmental (e.g., weather) conditions that occur during winter [12][13][14]. Several trials have evaluated the role of various bioactive compounds incompensating for the chill deficit for dormancy breaking [15].…”

Section: Introductionmentioning

confidence: 99%

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Temperate Fruit Trees under Climate Change: Challenges for Dormancy and Chilling Requirements in Warm Winter Regions

et al. 2021

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Adequate chill is of great importance for successful production of deciduous fruit trees. However, temperate fruit trees grown under tropical and subtropical regions may face insufficient winter chill, which has a crucial role in dormancy and productivity. The objective of this review is to discuss the challenges for dormancy and chilling requirements of temperate fruit trees, especially in warm winter regions, under climate change conditions. After defining climate change and dormancy, the effects of climate change on various parameters of temperate fruit trees are described. Then, dormancy breaking chemicals and organic compounds, as well as some aspects of the mechanism of dormancy breaking, are demonstrated. After this, the relationships between dormancy and chilling requirements are delineated and challenging aspects of chilling requirements in climate change conditions and in warm winter environments are demonstrated. Experts have sought to develop models for estimating chilling requirements and dormancy breaking in order to improve the adaption of temperate fruit trees under tropical and subtropical environments. Some of these models and their uses are described in the final section of this review. In conclusion, global warming has led to chill deficit during winter, which may become a limiting factor in the near future for the growth of temperate fruit trees in the tropics and subtropics. With the increasing rate of climate change, improvements in some managing tools (e.g., discovering new, more effective dormancy breaking organic compounds; breeding new, climate-smart cultivars in order to solve problems associated with dormancy and chilling requirements; and improving dormancy and chilling forecasting models) have the potential to solve the challenges of dormancy and chilling requirements for temperate fruit tree production in warm winter fruit tree growing regions.

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