Abscisic acid (ABA) regulates grape bud dormancy, and dormancy release stimuli may act through modification of ABA metabolism

Zheng, Chuanlin; Halaly, Tamar; Acheampong, Atiako Kwame; Takebayashi, Yumiko; Jikumaru, Yusuke; Kamiya, Yûji; Or, Etti

doi:10.1093/jxb/eru519

Cited by 186 publications

(227 citation statements)

References 97 publications

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“…For instance, in Populus, the ABIB1 gene was associated with bud set and bud break [7]. Moreover, there is evidence that ABA hormones regulate the synthesis of flavonoids, which, as mentioned, are also involved in plant growth and development [55].…”

Section: Cork Oak Bud Burst and Development Is Under Tight Hormonal Rmentioning

confidence: 95%

Comprehensive Analysis of the Cork Oak (Quercus suber) Transcriptome Involved in the Regulation of Bud Sprouting

Usié

Simões

Barbosa

et al. 2017

Forests

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Cork oaks show a high capacity of bud sprouting as a response to injury, which is important for species survival when dealing with external factors, such as drought or fires. The characterization of the cork oak transcriptome involved in the different stages of bud sprouting is essential to understanding the mechanisms involved in these processes. In this study, the transcriptional profile of different stages of bud sprouting, namely (1) dormant bud and (2) bud swollen, vs. (3) red bud and (4) open bud, was analyzed in trees growing under natural conditions. The transcriptome analysis indicated the involvement of genes related with energy production (linking the TCA (tricarboxylic acid) cycle and the electron transport system), hormonal regulation, water status, and synthesis of polysaccharides. These results pinpoint the different mechanisms involved in the early and later stages of bud sprouting. Furthermore, some genes, which are involved in bud development and conserved between species, were also identified at the transcriptional level. This study provides the first set of results that will be useful for the discovery of genes related with the mechanisms regulating bud sprouting in cork oak.

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Section: Cork Oak Bud Burst and Development Is Under Tight Hormonal Rmentioning

confidence: 95%

Comprehensive Analysis of the Cork Oak (Quercus suber) Transcriptome Involved in the Regulation of Bud Sprouting

Usié

Simões

Barbosa

et al. 2017

Forests

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“…During ED, the expression of ABA biosynthesis-related genes increased, while the expression of ABA catabolism-related genes decreased, and the content of ABA increased (Zheng et al, 2015). Exogenous application of ABA inhibited the release of buds from ED and attenuated the effect of the dormancy-breaking compound hydrogen cyanamide (HC), which promoted bud release (Zheng et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

ABA Represses the Expression of Cell Cycle Genes and May Modulate the Development of Endodormancy in Grapevine Buds

et al. 2017

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Recently, the plant hormone abscisic acid (ABA) has been implicated as a key player in the regulation of endodormancy (ED) in grapevine buds (Vitis vinifera L). In this study, we show that in the vine, the expression of genes related to the biosynthesis of ABA (VvNCED1; VvNCED2) and the content of ABA are significantly higher in the latent bud than at the shoot apex, while the expression of an ABA catabolic gene (VvA8H3) showed no significant difference between either organ. A negative correlation between the content of ABA and transcript levels of cell cycle genes (CCG) was found in both tissues. This result suggested that ABA may negatively regulate the expression of CCG in meristematic tissues of grapevines. To test this proposition, the effect of ABA on the expression of CCG was analyzed in two meristematic tissues of the vine: somatic embryos and shoot apexes. The results indicated that cell cycle progression is repressed by ABA in both organs, since it down-regulated the expression of genes encoding cyclin-dependent kinases (VvCDKB1, VvCDKB2) and genes encoding cyclins of type A (VvCYCA1, VvCYCA2, VvCYCA3), B (VvCYCB), and D (VvCYCD3.2a) and up-regulated the expression of VvICK5, a gene encoding an inhibitor of CDKs. During ED, the content of ABA increased, and the expression of CCG decreased. Moreover, the dormancy-breaking compound hydrogen cyanamide (HC) reduced the content of ABA and up-regulated the expression of CCG, this last effect was abolished when HC and ABA were co-applied. Taken together, these results suggest that ABA-mediated repression of CCG transcription may be part of the mechanism through which ABA modulates the development of ED in grapevine buds.

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“…ABA also induces summer dormancy in Poa bulbosa [134] and its level in the plant changes under dehydrated conditions [135]. ABA controls bud dormancy in grapes where its level increases in autumn and its metabolism is modified by the stimuli of dormancy release [136].…”

Section: Hormonal Control Of Seasonal Dormancymentioning

confidence: 99%

Insights into Seasonal Dormancy of Perennial Herbaceous Forages

Adhikari¹,

Razar²,

Paudel³

et al. 2017

AJPS

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Seasonal dormancy is an adaptive mechanism where plants suspend growth and become physiologically inactive to avoid extreme environmental conditions. Environmental factors like temperature, photoperiod, nutrients, and soil moisture control plant growth and development through various complex molecular mechanisms. Crown and seed dormancy of plants are mostly influenced by day length and temperature. Genes and physiological pathways triggered by these two factors along with genotype variability are some targets to manipulate seasonal dormancy. There is genetic variation in the depth and duration of seasonal dormancy. Therefore, their genetic manipulation is possible. Manipulations of summer and fall dormancy are relatively easier compared to winter dormancy because plants require protection of their apical meristem from freezing temperatures and limited water supply. Genetic factors that regulate seed dormancy may also have regulatory role for seasonal dormancy of the maternal plants. Limited genetic and genomic information are available for seasonal dormancy in herbaceous perennial species. Knowledge of genes controlling seasonal dormancy of eudicots, forest trees, and horticultural crops could be interpolated to explore possible dormancy mechanisms in perennial forages. This study reviews current knowledge of seasonal dormancy of herbaceous forages emphasizing the genetic and physiological context that would be valuable to breeders and plant biologists to expand the production season of perennial species by developing non-dormant and semi-dormant cultivars.

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Abscisic acid (ABA) regulates grape bud dormancy, and dormancy release stimuli may act through modification of ABA metabolism

Abstract: HighlightABA has a central role in repression of grape bud meristem activity, and both the natural dormancy cycle and artificial dormancy release stimuli act via regulation of ABA metabolism.

Cited by 186 publications

References 97 publications

Comprehensive Analysis of the Cork Oak (Quercus suber) Transcriptome Involved in the Regulation of Bud Sprouting

Comprehensive Analysis of the Cork Oak (Quercus suber) Transcriptome Involved in the Regulation of Bud Sprouting

ABA Represses the Expression of Cell Cycle Genes and May Modulate the Development of Endodormancy in Grapevine Buds

Insights into Seasonal Dormancy of Perennial Herbaceous Forages

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