A5063282252- Aluminum toxicity and tolerance in plants and animals
- Silicon Effects in Agriculture
- Plant Molecular Biology Research
- Plant Micronutrient Interactions and Effects
- Plant nutrient uptake and metabolism
- Plant Stress Responses and Tolerance
- Plant-Microbe Interactions and Immunity
- Photosynthetic Processes and Mechanisms
- Light effects on plants
- Plant Pathogens and Resistance
- Plant Disease Resistance and Genetics
- Legume Nitrogen Fixing Symbiosis
- Plant Reproductive Biology
- Ubiquitin and proteasome pathways
- Transgenic Plants and Applications
- Lipid metabolism and biosynthesis
- Mycotoxins in Agriculture and Food
- Polysaccharides and Plant Cell Walls
- Clay minerals and soil interactions
- Glycosylation and Glycoproteins Research
- Galectins and Cancer Biology
University of Lausanne
2023
Universidad Complutense de Madrid
2005-2022
Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria
2015-2021
Centre for Plant Biotechnology and Genomics
2015-2021
Universidad Politécnica de Madrid
2015-2021
Roots normally grow in darkness, but they may be exposed to light. After perceiving light, roots bend escape from light (root avoidance) and reduce their growth. How root avoidance responses are regulated is not well understood. Here, we show that illumination induces the accumulation of flavonols Arabidopsis thaliana roots. During illumination, rapidly accumulate at side closer transition zone. This promotes asymmetrical cell elongation causes differential growth between two sides, leading...
In nature roots grow in the dark and away from light (negative phototropism). However, most current research root biology has been carried out with system grown presence of light. Here, we have engineered a device, called Dark-Root (D-Root), to plants vitro aerial part exposed normal light/dark photoperiod while are or specific wavelengths intensities. D-Root provides an efficient for cultivating large number seedlings easily characterizing architecture dark. At morphological level,...
Summary Phosphate (Pi) is an essential nutrient for all organisms. Roots are underground organs, but the majority of root biology studies have been done on systems growing in presence light. Root illumination alters Pi starvation response ( PSR ) at different intensities. Thus, we analyzed morphological, transcriptional and physiological responses to dark‐grown roots. We identified new genes pathways regulated by that were not described previously. also show Pi‐starved plants increase...
Most organisms adjust their development according to the environmental conditions. For majority, this implies sensing of alterations cell walls caused by different cues. Despite relevance process, few molecular players involved in wall are known and characterized. Here, we show that wall-associated kinase-like protein RESISTANCE TO FUSARIUM OXYSPORUM 1 (RFO1) is required for plant growth early defense against Fusarium oxysporum functions changes pectin methylation levels wall. The RFO1 dwell...
Summary Root development and its response to environmental changes is crucial for whole plant adaptation. These responses include in transcript levels. Here, we show that the alternative polyadenylation (APA) of mRNA important root responses. Mutations FIP1 , a component machinery, affects development, cell division elongation, different abiotic stresses. Salt treatment increases amount poly(A) site usage within coding region 5′ untranslated regions (5′‐UTRs), lack activity reduces these...
Spores of pathogenic fungi are virtually ubiquitous and cause human disease severe losses in crops. The endophytic Alternaria species produce host-selective phytotoxins. Alt a 1 is strongly allergenic protein found A. alternata that causes asthma. Despite the well-established pathogenicity 1, molecular mechanisms underlying its action physiological function remain largely unknown. To gain insight into role played by this fungus, we studied production activity spores. We accumulates inside...
Abstract Plants have developed several external and internal aluminium (Al) tolerance mechanisms. The mechanism best characterised is the exudation of organic acids induced by Al. Rye ( Secale cereale L.), one most Al‐tolerant cereal crops, secretes both citrate malate from its roots in response to However, role dehydrogenase MDH ) genes Al‐induced stress has not been studied rye. We isolated ScMDH1 ScMDH2 genes, encoding two different mitochondrial isozymes, three rye cultivars (Ailés,...
Aluminum (Al) is the main limiting factor for crop production in acidic soils. Efflux of organic acids one mechanisms that determine Al-tolerance, and an Al-activated citrate transporter (multidrug toxic compound extrusion) MATE1 gene involved different species. The contribution rye (ScMATE1) depends on (Secale cereale L.) cultivars crosses analyzed; there no information about cDNA sequences, phylogenetic relationships, exudation, expression ScMATE1 were analyzed several wild...
ABSTRACT Stem cells are central to plant development. During root postembryonic development stem generating tissues patterned in layers around a cell organizer or quiescent center (QC). How lineages initially is unclear. Here, we describe role for BLUEJAY (BLJ), JACKDAW (JKD) and SCARECROW (SCR) transcription factors patterning of during growth reestablishment regeneration through regulation number QC their regenerative capacities. In blj jkd scr mutants, progressively lost which results...
Plant roots have the potential capacity to grow almost indefinitely if meristematic and lateral branching is sustained. In a genetic screen we identified an Arabidopsis mutant showing limited root growth (lrg1) due defects in cell division elongation meristem. Positional cloning determined that lrg1 affects alpha-1,2-mannosyltransferase gene, LEW3, involved protein N-glycosylation. The mutation causes synonymous substitution alters correct splicing of fourth intron causing mix wild-type...
Aluminum (Al) toxicity in acid soils influences plant development and yield. Almost 50% of arable land is acidic. Plants have evolved a variety tolerance mechanisms for Al. In response to the presence Al, various species exudate citrate from their roots. Rye ( Secale cereale L.) secretes both malate, making it one most Al-tolerant cereal crops. However, no research has been done on role mitochondrial synthase mCS ) gene Al-induced stress rye. We isolated an gene, encoding CS isozyme, two S....
The major limit to plant growth in acid soils is the presence of toxic aluminum (Al) cations, which inhibit root elongation.Aluminum tolerance rye has been described as controlled by, at least, four independent and dominant loci (Alt1, Alt2, Alt3 Alt4) located on 6RS, 3RS, 4RL 7RS chromosome arms, respectively.Previous data have shown some discrepancies about location locus that should be studied.On one hand, assigned because it was linked an AFLP (AMAL4) reported chromosome.On other this...