A5056356986- Plant Molecular Biology Research
- Light effects on plants
- Plant Water Relations and Carbon Dynamics
- Plant nutrient uptake and metabolism
- Plant Reproductive Biology
- Photosynthetic Processes and Mechanisms
- Plant Stress Responses and Tolerance
- Bioenergy crop production and management
- Plant Micronutrient Interactions and Effects
- Seed Germination and Physiology
- Legume Nitrogen Fixing Symbiosis
- Plant responses to elevated CO2
- Traditional and Medicinal Uses of Annonaceae
- Mycorrhizal Fungi and Plant Interactions
- Seed and Plant Biochemistry
- Polar Research and Ecology
- Forensic and Genetic Research
- Infection Control and Ventilation
- Tree-ring climate responses
- Phytochemical compounds biological activities
- Lipid metabolism and biosynthesis
- Biocrusts and Microbial Ecology
- Synthesis and Biological Activity
- Marine Sponges and Natural Products
- African Botany and Ecology Studies
University of La Serena
2013-2023
Umeå Plant Science Centre
2010-2022
Umeå University
2010-2022
Arturo Prat University
2017
Corporación Universitaria Republicana
2016
Universidad Politécnica de Madrid
2005-2013
Swedish University of Agricultural Sciences
2010
University of Talca
2010
Brandeis University
2005
Abstract This study addresses the role of circadian clock in seasonal growth cycle trees: cessation, bud set, freezing tolerance, and burst. Populus tremula × tremuloides (Ptt) LATE ELONGATED HYPOCOTYL1 (PttLHY1), PttLHY2, TIMING OF CAB EXPRESSION1 constitute regulatory components because down-regulation by RNA interference these genes leads to altered phase period clock-controlled gene expression as compared wild type. Also, both lines show about 1-h-shorter critical daylength for cessation...
Circadian clock performance during winter dormancy has been investigated in chestnut by using as marker genes CsTOC1 and CsLHY , which are homologous to essential components of the central circadian oscillator Arabidopsis . During vegetative growth, mRNA levels these two seedlings adult plants cycled daily, expected. However, dormancy, were high did not oscillate, indicating that was altered. A similar disruption induced chilling (to 4°C). Normal cycling resumed when endodormant or...
Cold acclimation in woody plants may have special features compared to similar processes herbaceous plants. Recent studies shown that circadian clock behavior the chestnut tree (Castanea sativa) is disrupted by cold temperatures and primary oscillator feedback loop not functional at 4 degrees C or winter. In these conditions, CsTOC1 CsLHY genes are constantly expressed. Here, we show this alteration also affects CsPRR5, CsPRR7 CsPRR9. These homologous corresponding Arabidopsis...
Abstract Understanding the timely regulation of plant growth and phenology is crucial for assessing a terrestrial ecosystem’s productivity carbon budget. The circadian clock, system genetic oscillators, acts as ‘Master Ceremony’ during physiological processes. mechanism particularly elusive in trees despite its relevance. primary secondary tree growth, leaf senescence, bud set, burst timing were investigated 68 constructs transformed into Populus hybrids compared with untransformed or...
ABSTRACT Oligosaccharide synthesis is an important cryoprotection strategy used by woody plants during winter dormancy. At the onset of autumn, starch stored in stem and buds broken down response to shorter days lower temperatures resulting buildup oligosaccharides. Given that enzyme DSP4 necessary for diurnal degradation Arabidopsis leaves, this study was designed address role seasonal process Castanea sativa Mill. The expression pattern CsDSP4 gene cells chestnut found parallel catabolism....
Plants balance water availability with gas exchange and photosynthesis by controlling stomatal aperture. This control is regulated in part the circadian clock, but it remains unclear how signalling pathways of daily rhythms are integrated into stress responses. The serine/threonine protein kinase OPEN STOMATA 1 (OST1) contributes to regulation closure via activation S-type anion channels. OST1 also mediates gene response ABA/drought stress. We show that ZEITLUPE (ZTL), a blue light...
Abstract Key message Woody plants have salt-tolerant mechanisms similar to those developed by non-woody plants. Among others, compartmentalization of ions, production compatible solutes, synthesis specific proteins and metabolites, induction transcriptional factors are the most relevant. plant-associated microbial interactions as well naturally stress-adapted trees resources that deserve be deepened fully understand tolerance mechanisms. Context The high variability salinity responses found...
Desertification is a major concern in arid and semi-arid regions globally. Understanding interactions between vulnerable plant species associated microbial symbionts may have important applications for conservation restoration strategies affected areas. In this study, we evaluated the root-associated fungal endophyte community Prosopis chilensis, threatened arid-adapted tree of northern Chile. Host benefits terms physiological performance growth were also assessed. Endophytic fungi isolated...
Lüneburg, Nicole, Patricia Siques, Julio Brito, Juan José De La Cruz, Fabiola León-Velarde, Juliane Hannemann, Cristian Ibanez, and Rainer Böger. Long-term intermittent exposure to high altitude elevates asymmetric dimethylarginine in first exposed young adults. High Alt Med Biol. 18:226–233, 2017.—Hypoxia-induced dysregulation of pulmonary cerebral circulation may be related an impaired nitric oxide (NO) pathway. We investigated the effect chronic hypobaric hypoxia (CIH) on metabolites NO...
Woody leguminous species are valuable crops because of their nutritional, economic, and ecological characteristics. Such have aided in the recovery marginal lands for agricultural development due to ability fix nitrogen, control erosion, act as a refuge other species, addition capacity improve soil mineral composition microbial biodiversity. Nevertheless, some trees recognized be one worst invasive that affect negatively biodiversity entire ecosystem balance. In this study, we review new...
Abstract Background Early seed germination and a functional root system development during establishment are crucial attributes contributing to nutrient competence under marginal soil conditions. Chenopodium quinoa Willd (Chenopodiaceae) is rustic crop, able grow in areas. Altiplano Coastal/Lowlands two representative zones of cultivation South America with contrasting fertility edaphoclimatic In the present work, we hypothesize that ecotypes Quinoa from (landrace Socaire) Coastal/Lowland...
The aim of this study was to link the biotechnological advances made in arid lands, which are known as "brown biotechnology," current environmental challenges facing these regions, their ecosystems and inhabitants. We present a broad compilation scientific evidence technological developed over past 15 years that have helped address some classical constraints environments, such development sustainable agriculture areas limited by water resources low levels organic matter soils, including...
RESUMENEn el presente documento se hace énfasis en la prestación del servicio al cliente desde punto de vista proveedor dentro logística que manejan las PYMES productoras y comercializadoras productos cárnicos bovino ciudad Bogotá, esta información obtuvo mediante cuestionarios tipo likert con cincuenta dos preguntas acerca tres fases (pre transacción, transacción post transacción).La finalidad es optimizar todo proceso cadena distribución logística, conglomerado Pymes sector cárnico bovinos...