A5023269166- Plant Molecular Biology Research
- Plant nutrient uptake and metabolism
- Plant Stress Responses and Tolerance
- Legume Nitrogen Fixing Symbiosis
- Horticultural and Viticultural Research
- Plant Virus Research Studies
- Plant Gene Expression Analysis
- Plant-Microbe Interactions and Immunity
- Plant Reproductive Biology
- Fungal and yeast genetics research
- Fungal Plant Pathogen Control
- Plant and Fungal Interactions Research
- Cocoa and Sweet Potato Agronomy
- Plant Disease Resistance and Genetics
- Plant Micronutrient Interactions and Effects
- Plant Parasitism and Resistance
- Photosynthetic Processes and Mechanisms
- Plant biochemistry and biosynthesis
- Phytoplasmas and Hemiptera pathogens
- Crop Yield and Soil Fertility
- Plant tissue culture and regeneration
- Antioxidant Activity and Oxidative Stress
- Plant Pathogenic Bacteria Studies
- Plant and animal studies
- Aluminum toxicity and tolerance in plants and animals
Adolfo Ibáñez University
2022-2024
Center of Applied Ecology & Sustainability
2022-2023
Millennium Science Initiative
2021-2023
Millennium Engineering and Integration (United States)
2022
Millennium Institute for Integrative Biology
2019-2021
Pontificia Universidad Católica de Chile
2008-2021
Anthocyanins, flavan-3-ols, and flavonols are the three major classes of flavonoid compounds found in grape berry tissues. Several viticultural practices increase content fruit, but underlying genetic mechanisms responsible for these changes have not been completely deciphered. The impact post-veraison sunlight exposure on anthocyanin flavonol accumulation skin its relation to expression different transcriptional regulators known be involved synthesis was studied. Treatments consisting...
Understanding how plants sense and respond to changes in nitrogen availability is the first step toward developing strategies for biotechnological applications, such as improvement of use efficiency. However, components involved signaling pathways remain poorly characterized. Calcium a second messenger signal transduction plants, it has been indirectly implicated nitrate responses. Using aequorin reporter we show that treatments transiently increase cytoplasmic Ca2+ concentration. We found...
Plant growth-promoting rhizobacteria (PGPR) induce positive effects in plants, such as increased growth or reduced stress susceptibility. The mechanisms behind PGPR/plant interaction are poorly understood, most studies have described short-term responses on plants and only a few analyzed plant molecular under PGPR colonization. Here, we studied the of bacterial model Burkholderia phytofirmans PsJN whole life cycle Arabidopsis thaliana plants. We reported that at different developmental...
Boron is an essential micronutrient for plants and taken up in the form of boric acid (BA). Despite this, a high BA concentration toxic plants, inhibiting root growth thus significant problem semi-arid areas world. In this work, we report molecular basis inhibition caused by boron. We show that application reduces size meristems, correlating with growth. The decrease meristem reduction cell division. Mitotic number significantly decreases expression level key core cycle regulators modulated....
Article5 January 2021Open Access Source DataTransparent process Modulation of plant root growth by nitrogen source-defined regulation polar auxin transport Krisztina Ötvös orcid.org/0000-0002-5503-4983 Institute Science and Technology (IST) Austria, Klosterneuburg, Austria Bioresources Unit, Center for Health & Bioresources, AIT Austrian GmbH, Tulln, Search more papers this author Marco Marconi orcid.org/0000-0002-3457-1384 Centro de Biotecnología y Genómica Plantas (CBGP, UPM-INIA)...
The RESPONSIVE TO DEHYDRATION 22 (RD22) gene is a molecular link between abscisic acid (ABA) signalling and abiotic stress responses. Its expression has been used as reliable ABA early response marker. In Arabidopsis, the single copy RD22 possesses BURP domain also located at C-terminus of USP embryonic proteins beta subunit polygalacturonases. grapevine, identified but putative paralogs are found in grape genome, possibly forming large family this species. work, we searched for annotations...
Nitrogen (N) is one of the main limiting nutrients for plant growth and crop yield. It well documented that changes in nitrate availability, N source found agricultural soils, influences a myriad developmental programs processes including defense response. Indeed, many agronomical reports indicate nutritional status their ability to respond effectively when challenged by different pathogens. However, molecular mechanisms involved N-modulation susceptibility pathogens are poorly...
Nitrate can act as a potent signal to control growth and development in plants. In this study, we show that nitrate is able stimulate primary root via increased meristem activity cytokinin signaling. Cytokinin perception biosynthesis mutants displayed shorter roots compared with wild-type plants when grown the only nitrogen source. Histological analysis of tip revealed decreased cell division elongation receptor double mutant ahk2/ahk4 under sufficient regime. Interestingly,...
Plant defense responses to biotic stresses are complex biological processes, all governed by sophisticated molecular regulations. Induced systemic resistance (ISR) is one of these mechanisms where beneficial bacteria or fungi prime plants resist pathogens pest attacks. In ISR, the arsenal in remains dormant and it only triggered an infection, allowing a better allocation plant resources. Our group recently described that well-known bacterium Paraburkholderia phytofirmans PsJN able induce...
Nitrate commands genome-wide gene expression changes that impact metabolism, physiology, plant growth, and development. In an effort to identify new components involved in nitrate responses plants, we analyze the Arabidopsis thaliana root phosphoproteome response treatments via liquid chromatography coupled tandem mass spectrometry. 176 phosphoproteins show significant at 5 or 20 min after treatments. Proteins identified by include signaling such as kinases transcription factors. contrast,...
Carotenoids are essential components of the photosynthetic antenna and reaction center complexes, being also responsible for antioxidant defense, coloration, many other functions in multiple plant tissues. In tomato, salinity negatively affects development vegetative organs productivity, but according to previous studies it might increase fruit color taste, improving its quality, which is a current agricultural challenge. The quality parameters that increased by cultivar-specific include...
The plant pathogen Botrytis cinerea is responsible for gray-mold disease, which infects a wide variety of species. outcome this host-pathogen interaction, result the interplay between defense and fungal virulence pathways, can be modulated by various environmental factors. Among these, iron availability acquisition play crucial role in diverse biological functions. How B. obtains iron, an essential micronutrient, during infection unknown. We set out to determine reductive assimilation (RIA)...
A novel MADS-box transcription factor from Pinus radiata D. Don was characterized. PrMADS11 encodes a protein of 165 amino acids for belonging to group II, related the MIKC structure. differentially expressed in stems pine trees response 45° inclination at early times (1 h). Arabidopsis thaliana stably transformed with 35S::PrMADS11 construct an effort identify putative targets PrMADS11. massive transcriptome analysis revealed 947 genes: 498 genes were up-regulated, and 449 down-regulated...
Abstract Nitrogen is an essential macronutrient and its availability in soil plays a critical role plant growth, development impacts agricultural productivity. Plants have evolved different strategies to sense respond heterogeneous nitrogen distribution. Modulating root system architecture, including primary growth branching, among the most adaptions ensure adequate acquisition. However, immediate molecular pathways coordinating adjustment of response varying sources are poorly understood....
For comprehensive gene expression analyses of the phytopathogenic fungus Botrytis cinerea, which infects a number plant taxa and is cause substantial agricultural losses worldwide, we developed BEB, web-based B. cinerea Expression Browser. This computationally inexpensive application its associated database contain manually curated RNA-Seq data for cinerea. BEB enables genes interest under different culture conditions by providing publication-ready heatmaps depicting transcript levels,...