Influences of cold deprivation during dormancy on carbohydrate contents of vegetative and floral primordia and nearby structures of peach buds (Prunus persica L. Batch)

Bonhomme, Marc; Rageau, Rémy; Lacointe, André; Gendraud, M.

doi:10.1016/j.scienta.2005.01.015

Cited by 81 publications

(52 citation statements)

References 22 publications

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“…It is possible that water dynamics affect the development of floral primordia necrosis directly. Bonhomme et al (2005) found loss of functionality in vascular connections between the bud base of peach and primordia during the processes of dormancy progression under cold-deprived conditions, resulting in a block of metabolic substances. It is possible that a similar phenomenon occurred in mixed buds of Japanese pear grown under mild winter conditions; thereafter, the duplication of inflorescence could have occurred due to the consumption of reserve substances.…”

Section: Discussionmentioning

confidence: 98%

“Floral Primordia Necrosis” Incidence in Mixed Buds of Japanese Pear (Pyrus pyrifolia (Burm.) Nakai var. culta) ‘Housui’ Grown under Mild Winter Conditions and the Possible Relation with Water Dynamics

Yamamoto

Katsumi-Horigane

Yoshida

et al. 2010

J. Japan. Soc. Hort. Sci.

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The effects of global warming have been observed in several crops as changes in temperature-dependent processes, such as dormancy in perennial fruit trees. We exposed potted Japanese pear 'Housui' plants to 600 chilling hours (CH) below 7.2°C, which is below the theoretical requirement. Such low chilling accumulation was initiated at different times (three treatments) and carried out during four consecutive seasons in order to observe the influence of these factors on the incidence and severity of floral primordia necrosis, water dynamics, phenological, and morphological changes during dormancy in lateral mixed buds, which is comprised of vegetative and reproductive primordia, obtained from the current season's shoots. The submitted amount of chilling temperatures brought about the release of dormancy stage, regardless of seasonal variations in the duration to accumulate 600 CH, but caused a remarkable increase of floral primordia necrosis and a great increase in the number of floral primordia as a consequence of the development of new inflorescences; however, these morphological changes did not increased number of opened flowers because of the progression of floral primordia necrosis. Consecutive seasons of mild winter conditions anticipated the incidence of floral primordia necrosis. The results obtained from magnetic resonance imaging in the buds of plants subjected to low chilling accumulation showed low water mobility and water content especially in scales compared to plants grown under natural conditions. In contrast, increased water mobility and relative content were observed in specific portions of the bud base in treated buds, which was more accentuated in the mixed buds of plants grown for several seasons under mild winter conditions. Moreover, abnormal functional water movement inside dormant mixed buds might result in the necrosis of floral primordia, giving way to the development of new inflorescences.

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Section: Discussionmentioning

confidence: 98%

“Floral Primordia Necrosis” Incidence in Mixed Buds of Japanese Pear (Pyrus pyrifolia (Burm.) Nakai var. culta) ‘Housui’ Grown under Mild Winter Conditions and the Possible Relation with Water Dynamics

Yamamoto

Katsumi-Horigane

Yoshida

et al. 2010

J. Japan. Soc. Hort. Sci.

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“…The active sucrose absorption could be explained by increased activity of plasma membrane H + -ATPase (Aue et al, 1999;Gévaudant et al, 2001). Bonhomme et al (2005) investigated the influence of cold deprivation during dormancy on the carbohydrate content of buds. Since sugar concentrations remained high during cold deprivation, bud necrosis caused by cold deprivation could be the consequence of an inability to use carbohydrate reserves.…”

Section: Biochemical and Molecular Biological Approaches For Prunus Dmentioning

confidence: 99%

Regulation of Bud Dormancy and Bud Break in Japanese Apricot (Prunus mume Siebold ^|^amp; Zucc.) and Peach [Prunus persica (L.) Batsch]: A Summary of Recent Studies

Yamane

2014

J. Japan. Soc. Hort. Sci.

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Bud dormancy allows most deciduous fruit tree species to avoid injury in unsuitable environments, synchronize their annual growth, and adapt to a temperate zone climate. Because bud dormancy affects next season's fruit production and vegetative growth, it is considered one of the most important physiological factors that control fruit production. Recent global climate changes require us to better understand the genetic factors regulating bud dormancy, especially those that induce dormancy release and subsequent bud break. In this review, environmental factors that affect the seasonal dormancy depth of Japanese apricot (P. mume Siebold & Zucc.) and peach [P. persica (L.) Batsch] are first outlined. Next, recent progress of genetic, biochemical, and molecular biological studies of Prunus dormancy regulation is described. Recent advances in functional genomics have promoted the discovery of gene function and gene networks associated with bud dormancy regulation. A group of candidate genes for bud dormancy regulation, the DORMANCY-ASSOCIATED MADS-box (DAM) genes in Prunus, are focused. Recently reported expressional analysis suggests a significant role for DAMs in dormancy release and bud break of Japanese apricot and peach vegetative buds. Transformation studies of PmDAM6 have demonstrated that it has an inhibitory effect on the apical growth of poplar (Populus spp.). As bud dormancy is a quantitative polygenic trait, not only DAMs, but also other genes and gene networks appear to regulate bud dormancy. Ongoing and future studies will undoubtedly facilitate the unveiling of the molecular aspects of bud dormancy regulation in temperate fruit tree species of Prunus.

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“…Insufficient chilling causes abnormal patterns in budbreak and development in temperate zone fruit trees cultivated in warm climates (BONHOMME et al, 2005). Low percentage and heterogeneity along the stem in budbreak and flowering and other anomalies occur in temperate fruit trees grown in subtropical conditions, when chilling requirement is not satisfied (LEITE et al, 2006).…”

Section: Introductionmentioning

confidence: 99%

Evaluation of winter temperatures on apple budbreak using grafted twigs

et al. 2013

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-Temperature is the main climate factor related to induction, maintenance and dormancy release in apple (Malus domestica Borkh.). The inadequate chilling exposure in apples causes budbreak problems, resulting in decrease in yield potential. Thus, the knowledge of physiological principles and environmental factors determining the dormancy phenomenon, especially winter temperature effects, it is necessary for the efficient selection of cultivars in a productive region. In addition, it is indispensable to adapt the orchard management aiming to decrease the problems caused by lack chilling during winter. The objective of this study was to evaluate the influence of different thermal conditions during the dormancy period on budbreak of apple cultivars. One-year-old twigs of 'Castel Gala' and 'Royal Gala' cultivars, grafted on M7 rootstock, were submitted to temperatures of 5, 10 and 15ºC for different exposure periods (168; 336; 672; 1,008 and 1,344 hours). After treatments execution, the plants were kept in a greenhouse at 25ºC. Budbreak was quantified when accumulated 3,444; 6,888; 10,332; 13,776; 17,220 and 20,664 GDHºC after temperature treatments. The cultivars responded differently to temperature effect during the winter period. The temperature of 15°C during winter shows a greater effectiveness on 'Castel Gala' apple budbreak while in the 'Royal Gala' apples the temperatures of 5 and 10ºC show better performance. 'Castel Gala' cultivar (low chilling requirement) may supply its physiological necessities, may be capable to budburst, even when subjected to higher temperatures in relation to 'Royal Gala' apples (high chilling requirement). Index terms: Malus domestica, dormancy, chilling requirement, grafted twigs, apical dominance. AVALIAÇÃO DE TEMPERATURAS HIBERNAIS NA BROTAÇÃO DE GEMAS DE MACIEIRA UTILIZANDO RAMOS ENXERTADOSRESUMO -A temperatura é o principal fator ambiental relacionado à indução, manutenção e superação da dormência da macieira (Malus domestica Borkh.). O inadequado suprimento em frio para esta espécie determina a ocorrência de problemas relacionados à brotação, repercutindo na diminuição do potencial produtivo. Dessa forma, o conhecimento dos princípios fisiológicos e dos fatores ambientais determinantes no fenômeno da dormência, sobretudo o efeito das temperaturas hibernais, faz-se necessário para a eficiente seleção de cultivares em determinada região produtora, assim como para eficiente elaboração e adequação de práticas culturais para minimização de problemas causados pelo insuficiente acúmulo de frio hibernal. O objetivo deste trabalho foi avaliar a influência de diferentes condições térmicas durante o período de dormência na brotação de gemas de cultivares de macieira. Ramos de um ano das cultivares Castel Gala e Royal Gala, enxertadas no porta-enxertos M7, foram submetidas às temperaturas de 5; 10 e 15ºC, durante diferentes períodos de exposição (168; 336; 672; 1.008 e 1.344 horas). Após a efetivação dos tratamentos, as plantas foram mantidas em casa de vegetação a 25ºC. A brot...

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Influences of cold deprivation during dormancy on carbohydrate contents of vegetative and floral primordia and nearby structures of peach buds (Prunus persica L. Batch)

Cited by 81 publications

References 22 publications

“Floral Primordia Necrosis” Incidence in Mixed Buds of Japanese Pear (Pyrus pyrifolia (Burm.) Nakai var. culta) ‘Housui’ Grown under Mild Winter Conditions and the Possible Relation with Water Dynamics

“Floral Primordia Necrosis” Incidence in Mixed Buds of Japanese Pear (Pyrus pyrifolia (Burm.) Nakai var. culta) ‘Housui’ Grown under Mild Winter Conditions and the Possible Relation with Water Dynamics

Regulation of Bud Dormancy and Bud Break in Japanese Apricot (Prunus mume Siebold ^|^amp; Zucc.) and Peach [Prunus persica (L.) Batsch]: A Summary of Recent Studies

Evaluation of winter temperatures on apple budbreak using grafted twigs

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