Browsing by Author "a396235b-0db8-4bfd-8b7a-ed372eabdb54"
Now showing items 1-12 of 12
-
ABA and its signaling pathway are involved in the cold acclimation and deacclimation of grapevine buds
(Elsevier B.V., 2019)The grapevine (Vitis vinifera L.) buds as well as the buds of other deciduous fruit trees acclimate and deacclimate to the cold during the autumn-winter season. Cold acclimation (CA) is characterized by an increase in bud ... -
ABA promotes starch synthesis and storage metabolism in dormant grapevine buds
(Elsevier GmbH, 2019)© 2019 Elsevier GmbH In grapevine (Vitis vinifera L.) buds, the short day (SD)-photoperiod induces endodormancy and increases the level of ABA and the expression of ABA key biosynthesis genes, which suggests that ABA could ... -
Abscisic acid (ABA) and low temperatures synergistically increase the expression of CBF/DREB1 transcription factors and cold-hardiness in grapevine dormant buds
(Oxford University Press, 2019)Background and Aims: It has been reported that low temperatures (LTs) and the plant hormone abscisic acid (ABA) induce the expression of CBF/DREB1 transcription factors in vegetative tissues and seedlings of Vitis vinifera ... -
H2O2 is involved in the dormancy-breaking effect of hydrogen cyanamide in grapevine buds
(SPRINGER, 2008-06)Hydrogen cyanamide (HC) is widely used to induce the breakage of endodormancy (ED) in grape and other deciduous fruit crop, though its mechanism of action is poorly understood. Applications of HC to grapevine buds ... -
Hypoxia and hydrogen cyanamide induce bud-break and up-regulate hypoxic responsive genes (HRG) and VvFT in grapevine-buds
(Springer, 2012)It has been reported that dormancy-breaking compound hydrogen cyanamide (HC) stimulates the fermentative pathway and inhibits respiration in grapevinebuds, suggesting in this way, that a respiratory stress must be ... -
Hypoxia induces H2O2 production and activates antioxidant defence system in grapevine buds through mediation of H 2O2 and ethylene
(2012)Paradoxically, in eukaryotic cells, hydrogen peroxide (H2O 2) accumulates in response to oxygen deprivation (hypoxia). The source of H2O2 under hypoxia varies according to the species, organs, and tissue. In nonphotosynthetic ... -
Hypoxia induces H2O2 production and activates antioxidant defence system in grapevine buds through mediation of H2O2 and ethylene
(2012)Paradoxically, in eukaryotic cells, hydrogen peroxide (H2O2) accumulates in response to oxygen deprivation (hypoxia). The source of H2O2 under hypoxia varies according to the species, organs, and tissue. In nonphotosynt ... -
An improved chemiluminescence method for hydrogen peroxide determination in plant tissues
(SPRINGER, 2006-01)As a consequence of the increasing importance of hydrogen peroxide in plant metabolism, more efficient methods are required for accurate determinations of its concentration in plant tissue and organs. Here we present a ... -
Testing the Ferguson model for the cold-hardiness of dormant grapevine buds in a temperate and subtropical valley of Chile
(Springer, 2020)A dynamic thermal time model (DTTM) has been developed to predict cold-hardiness in dormant grapevine buds, which uses daily mean temperatures as the only input variable. However, it has been recently reported that ... -
The dormancy-breaking stimuli "chilling, hypoxia and cyanamide exposure" up-regulate the expression of α-amylase genes in grapevine buds
(2014)It has been suggested that respiratory stress is involved in the mechanism underlying the dormancy-breaking effect of hydrogen cyanamide (H2CN2) and sodium azide in grapevine buds; indeed, reductions in oxygen levels ... -
The expression of VvPHYA and VvPHYB transcripts is differently regulated by photoperiod in leaves and buds of grapevines
(2009)Light signals perceived by phytochromes (Phys) and cryptochromes (Crys) play key roles in plant growth and development and in photoperiod dependant process such as flowering, tuberization, seasonal growth cessation and ... -
Use of the dynamic model for the assessment of winter chilling in a temperate and a subtropical climatic zone of Chile
(Instituto de Investigaciones Agropecuarias, INIA, 2008-04)Accumulated chilling was estimated by applying three different models to the hourly autumn-winter temperature records from Santiago (33°34 S lat; 625 m.a.s.l.) and Vicuña (30°02´ S lat; 643 m.a.s.l.) for the years 2005 ...
