Browsing by Author "9f72d121-8794-4fc3-861c-0f41617b1134"
Now showing items 1-17 of 17
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Rubio, Sebastián; Pérez, Francisco J. (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 ...
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Rubio, Sebastián; Noriega, Ximena; Pérez, Francisco J. (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 ...
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Vergara, Ricardo; Noriega, Ximena; Aravena, Karla; Prieto, Humberto; Pérez, Francisco J. (Frontiers Media S.A., 2017)© 2017 Vergara, Noriega, Aravena, Prieto and Pérez. 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 ...
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Rubio, Sebastián; Noriega, Ximena; Pérez, Francisco J. (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 ...
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Pérez, Francisco J.; Burgos, Bárbara (2004)Polymorphism of peroxidase (Px) and changes in its activity and in H 2O2 content were studied in buds of grapevine during dormancy. Three isoforms of Px were detected in bud-extracts, two basic and one acidic, however, the ...
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Pérez, Francisco J.; Ormenoñuñez, Juan (Kluwer Academic Publishers-Plenum Publishers, 1991)Hydroxamic acids (Hx) produced by some cereal crops have been associated with allelopathy. However, the release of Hx to the soil by the producing plant-an essential condition for a compound to be involved in allelopathy-has ...
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Parada, Francisca; Noriega, Ximena; Dantas, Débora; Bressan-Smithb, Ricardo; Pérez, Francisco J. (Elsevier, 2016)Grapevine buds (Vitis vinifera L) enter endodormancy (ED) after perceiving the short-day (SD) photoperiod signal and undergo metabolic changes that allow them to survive the winter temperatures. In the present study, we ...
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Pérez, Francisco J.; Kühn, Francisco J.; Vergara, Francisco J. (2011)A common molecular regulatory pathway that involves PHYA, PHYB and floral integrator genes CONSTANS (CO), FLOWERING LOCUS T (FT) and SUPRESSOR OF OVEREXPRESSION OF CO1 (SOC1) has been suggested to participate in the ...
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Vergara, Ricardo; Parada, Francisca; Rubio, Sebastián; Pérez, Francisco J. (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 ...
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Pérez, Francisco J.; Vergara, Ricardo; Or, Etti (2009)Sodium azide (NaN3), a well-known inhibitor of mitochondrial respiration, stimulated bud-dormancy release in grapevines similar to hydrogen cyanamide (HC), while HC, a well-known dormancy release agent, inhibited the O2 ...
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Kühn, Nathalie; Ormeño-Núñez, Juan; Jaque-Zamora, Gonzalo; Pérez, Francisco J. (2009)Despite the crucial role that phytochromes (Phys) play in light perception and in the entrainment of the circadian clock to local time, the photoperiodic regulation of PHYA and PHYB gene expression has been poorly studied, ...
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Iturra, Pablo; Rojas, Diego A.; Pérez, Francisco J.; Méndez, Andrea; Ponce, Carolina A.; Bonilla, Paula; Bustamante, Rebeca; Rodríguez, Héctor; Beltrán, Caroll J.; Vargas, Sergio L. (Elsevier INC, 2018)Subclinical primary Pneumocystisinfection is the most common pulmonary infection in early infancy, making it important to determine whether it damages the lung. Pneumocystis peaks at 2 to 5 months of age, when respiratory ...
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Niemeyer Marich, August; Corcuera, Luis J.; Pérez, Francisco J. (1982)An insect inhibitor isolated from maize extracts, 2,4-dihydroxy-7-methoxy-1,4-benzoxazin-3-one (DIMBOA), reacted with cysteine, mercaptoethanol, ethane. © 1982.
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Pérez, Francisco J.; Niemeyer, Hermann M. (1989)DIMBOA (2,4-dihydroxy-7-methoxy-1,4-benzoxazin-3-one), a hydroxamic acid from cereals, reacted with primary amines to give an addition compound with two imino groups. Kinetic studies with DIMBOA and with the DIMBOA analogues ...
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Pérez, Francisco J.; Noriega, Ximena (Springer Verlag, 2018)© 2018, Springer-Verlag GmbH Germany, part of Springer Nature. Main conclusion: Bud-break assays under forced growth conditions suggest that a drop in ABA content and an increase in sugars are common features in the sprouting ...
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Rubio, Sebastián; Donoso, Amanda; Pérez, Francisco J. (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 ...
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Pérez, Francisco J.; Kühn, Nathalie; Ormeño-Nuñez, Juan; Rubio, Sebastián (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 ...