Browsing by Author "XX676484"
Now showing items 1-20 of 25
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Valdés Godoy, Francisca; Olivos Hernández, Karina; Stange Klein, Claudia; Handford, Michael (MDPI, 2021)Reductions in crop yields brought about by abiotic stress are expected to increase as climate change, and other factors, generate harsher environmental conditions in regions traditionally used for cultivation. Although ...
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Handford, Michael; Rodríguez-Furlán, Cecilia; Marchant, Lorena; Segura, Marcelo; Gómez, Daniela; Alvarez-Buylla, Elena; Xiong, Guang Yan; Pauly, Markus; Orellana, Ariel (Oxford University Press, 2012)Nucleotide sugar transporters (NSTs) are antiporters comprising a gene family that plays a fundamental role in the biosynthesis of complex cell wall polysaccharides and glycoproteins in plants. However, due to the limited ...
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Rojas, Bárbara; Wurman, Joel; Zamudio, María Sofía; Donoso, Amanda; Cabedo, Pamela; Díaz, Francisca; Stange, Claudia; Handford, Michael (Springer, 2019)Sorbitol is synthesized in Rosaceae species, especially in source organs, in a pathway involving aldose 6-phosphate reductase (A6PR, EC 1.1.1.200). As compatible solutes, sorbitol and other sugar alcohols assist in the ...
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Norambuena Morales, Lorena; Nilo, Ricardo; Handford, Michael; Reyes, Francisca; Marchant, Lorena; Meisel, Lee; Orellana, Ariel (2005)The synthesis of noncellulosic polysaccharides and glycoproteins in the plant cell Golgi apparatus requires UDP-galactose as a substrate. We have cloned and characterized a nucleotide sugar transporter from Arabidopsis ...
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Handford, Michael (Facultad de Agronomía e Ingeniería Forestal, Pontificia Universidad Católica de Chile ., 2006-09)The cell wall plays a major role in determining the expansion, growth and shape of plant cells, and thus of the plant itself. Additionally, cell wall breakdown products are used as developmental signals. Moreover, the ...
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Rámila, Consuelo; Contreras, Samuel; Di Domenico, Camila; Molina Montenegro, Marco A.; Vega, Andrea; Handford, Michael; Bonilla, Carlos (Elsevier, 2016)Phytoremediation is a promising technology to tackle boron toxicity, which restricts agricultural activities in many arid and semi-arid areas. Puccinellia frigida is a perennial grass that was reported to hyperaccumulate ...
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Stange Klein, Claudia; Fuentes, Paulina; Handford, Michael; PIizarro, Lorena (SOC BIOLGIA CHILE, 2008)Carotenoids are synthesized in prokaryotic and eukaryotic organisms. In plants and algae, these lipophilic molecules possess antioxidant properties acting as reactive oxygen species scavengers and exert functional roles ...
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Handford, Michael; Carr, John P. (SOC GENERAL MICROBIOLOGY, 2006-09-14)Altered starch accumulation is a characteristic biochemical symptom of virus infection in plants. To assess its biological importance, infection of Arabidopsis thaliana with Turnip vein-clearing virus, Cucumber mosaic ...
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Almasia, Romina; Carú Marambio, Margarita; Handford, Michael; Orlando, Julieta (Elsevier, 2016)Several biogeographical hypotheses have been proposed to explain microbial distribution, but there is ongoing debate about the magnitude of the contribution of niche based processes and historical contingencies in determining ...
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Villegas, Daniel; Handford, Michael; Alcalde, José; Pérez Donoso, Alonso (Elsevier, 2016)Anthocyanins are secondary metabolites synthesized in grape berry skins via the phenylpropanoid pathway, with functions ranging from skin coloration to protection against pathogens or UV light. Accumulation of these compounds ...
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Espinoza, Analia; Contreras, Rodrigo; Zúñiga, Gustavo E.; Herrera, Raul; Moya León, María Alejandra; Norambuena Morales, Lorena; Handford, Michael (Frontiers Media, 2016)White Chilean strawberries (Fragaria chiloensis) are non-climacteric fruits, with an exotic color and aroma. In order to discover genes involved in the development of these fruits, we identified a fragment of a gene encoding ...
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Aceituno Valenzuela, Uri; Covarrubias, María Paz; Aguayo, María Francisca; Valenzuela Riffo, Felipe; Espinoza, Analía; Gaete Eastman, Carlos; Godoy Herrera, Raúl; Handford, Michael; Norambuena Morales, Lorena (Elsevier, 2018)The equilibrium between protein synthesis and degradation is key to maintaining efficiency in different physiological processes. The proteinase inhibitor cystatin regulates protease activities in different developmental ...
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Moreno, J. C.; Cerda, A.; Simpson, K.; López Díaz, I; Carrera, E.; Handford, Michael; Stange Klein, Claudia (Oxford Univ Press, 2016)The expression of Dclcyb1 in tobacco induces a positive feedback on the isoprenoid, carotenoid, gibberellin and chlorophyll pathways leading to an enhancement in fitness, biomass, photosynthetic efficiency and carotenoid ...
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Levels of Lycopene b-Cyclase 1 Modulate Carotenoid Gene Expression and Accumulation in Daucus carota Moreno, Juan Camilo; Pizarro, Lorena; Fuentes, Paulina; Handford, Michael; Cifuentes Guzmán, Víctor; Stange Klein, Claudia (PLoS ONE, 2013)Plant carotenoids are synthesized and accumulated in plastids through a highly regulated pathway. Lycopene b-cyclase (LCYB) is a key enzyme involved directly in the synthesis of a-carotene and b-carotene through the ...
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Levels of Lycopene β-Cyclase 1 Modulate Carotenoid Gene Expression and Accumulation in Daucus carota Moreno, Juan Camilo; Pizarro, Lorena; Fuentes, Paulina; Handford, Michael; Cifuentes Guzmán, Víctor; Stange Klein, Claudia (2013)Plant carotenoids are synthesized and accumulated in plastids through a highly regulated pathway. Lycopene β-cyclase (LCYB) is a key enzyme involved directly in the synthesis of α-carotene and β-carotene through the ...
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Fuentes, Paulina; Pizarro, Lorena; Moreno, Juan Camilo; Handford, Michael; Rodriguez-Concepcion, Manuel; Stange Klein, Claudia (2012)Carrot is an important nutritional crop due to the high levels of pro-vitamin A carotenoids (β-carotene and, to a lower extent, α-carotene) that accumulate in its storage root during secondary growth. In this work we show ...
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Handford, Michael; Rodríguez Furlán, C.; Orellana López, Ariel (ASSOC BRAS DIVULG CIENTIFICA, FACULDADE MEDICINA, 2006-09)
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Aguayo, M. Francisca; Cáceres, Juan Carlos; Fuentealba, Matías; Muñoz, Rodrigo; Stange Klein, Claudia; Cabrera Paucar, Ricardo; Handford, Michael (Frontiersin Plant Science, 2015)Polyols are enzymatically-produced plant compounds which can act as compatible solutes during periods of abiotic stress. Nicotinamide adenine dinucleotide+-dependent SORBITOL DEHYDROGENASE (SDH, E. C. 1.1.1.14) from ...
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Aguayo, M. Francisca; Cáceres, Juan Carlos; Fuentealba, Matías; Muñoz, Rodrigo; Stange Klein, Claudia; Cabrera Paucar, Ricardo; Handford, Michael (Frontiers Research Foundation, 2015)© 2015 Aguayo, Cáceres, Fuentealba, Muñoz, Stange, Cabrera and Handford. Polyols are enzymatically-produced plant compounds which can act as compatible solutes during periods of abiotic stress. Nicotinamide adenine ...
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Araya Flores, Jorge; Miranda, Simon; Covarrubias Becerra, María Paz; Stange Klein, Claudia; Handford, Michael (Elsevier, 2020)Lipoic acid (LA) and its reduced form (dihydrolipoic acid, DHLA) have unique antioxidant properties among such molecules. Moreover, after a process termed lipoylation, LA is an essential prosthetic group covalently-attached ...