A5086405863- Plant Molecular Biology Research
- Light effects on plants
- Photosynthetic Processes and Mechanisms
- Endoplasmic Reticulum Stress and Disease
- Heat shock proteins research
- Marine Toxins and Detection Methods
- Leaf Properties and Growth Measurement
- Aquatic Ecosystems and Phytoplankton Dynamics
- Greenhouse Technology and Climate Control
- Protist diversity and phylogeny
- Protein Structure and Dynamics
- Plant Water Relations and Carbon Dynamics
- Polysaccharides and Plant Cell Walls
- Plant Reproductive Biology
- Algal biology and biofuel production
- Plant nutrient uptake and metabolism
- Plant responses to elevated CO2
Instituto de Biología Molecular y Celular de Plantas
2023-2025
Fundación Instituto Leloir
2016-2024
Consejo Nacional de Investigaciones Científicas y Técnicas
2016-2024
Consejo Superior de Investigaciones Científicas
2024
Universitat Politècnica de València
2024
Combining heat and light responses Plants integrate a variety of environmental signals to regulate growth patterns. Legris et al. Jung analyzed how the quality is interpreted through ambient temperature transcription (see Perspective by Halliday Davis). The phytochromes responsible for reading ratio red far-red were also responsive small shifts in that occur when dusk falls or shade from neighboring plants cools soil. Science , this issue p. 897 886 ; see 832
Significance DELLA proteins are plant-specific transcriptional regulators that act as signaling hubs at the interface between environment and networks control growth. The growth-promoting hormone gibberellin destabilizes DELLAs. Here we describe an alternative pathway to destabilize these proteins. We show DELLAs substrate of COP1, E3 ubiquitin ligase increases its activity promote growth in response shade or warmth. Our results not changes levels, mediates rapid destabilization environmental cues.
Significance In agricultural crops, plants are cultivated in close proximity, exposed to mutual shading. Photosensory receptors perceive this light environment and initiate growth responses that adjust the position of plant organs within canopy maximize capture. During early hours under shade, these mediated by elevated levels hormone auxin. Here we show prolonged PHYTOCHROME INTERACTING FACTOR 4 light-signaling transcription factor, selected auxin receptors, their upstream regulatory miRNA,...
Sunflecks, transient patches of light that penetrate through gaps in the canopy and transiently interrupt shade, are eco-physiologically agriculturally important sources energy for carbon gain, but our molecular understanding how plant organs perceive respond to sunflecks photoreceptors remains limited. The UV-B photoreceptor UV RESISTANCE LOCUS8 (UVR8) is a recent addition list photosensory receptors, we have made considerable advances physiology mechanisms action UVR8 its signaling...
Summary Shade and warmth promote the growth of stem, but degree mechanistic convergence functional association between these responses is not clear. We analysed quantitative impact mutations natural genetic variation on hypocotyl Arabidopsis thaliana to shade warmth, relationship abundance PHYTOCHROME INTERACTING FACTOR 4 (PIF4) stimulation by or effects both cues transcriptome consequences warm temperature carbon balance. Growth showed strong linkage similar dependence PIF4 levels....
The prefoldin‐like protein UNCONVENTIONAL PREFOLDIN RPB5 INTERACTOR (URI) participates in diverse cellular functions, including homeostasis, transcription, translation, and signal transduction. Thus, URI is a highly versatile protein, although the molecular basis of this versatility remains unknown. In work, we show that Arabidopsis thaliana ( ) (AtURI) possesses large intrinsically disordered region (IDR) spanning most C‐terminal part feature conserved yeast human orthologs. Our findings...
Nitrate supply is fundamental to support shoot growth and crop performance, but the associated increase in stem height exacerbates risks of lodging yield losses. Despite their significance for agriculture, mechanisms involved promotion by nitrate remain poorly understood. Here, we show that elongation hypocotyl Arabidopsis thaliana , used as a model, responds rapidly persistently upshifts concentration, rather than level itself. The response occurred even shoots dissected from roots required...
p53 AND DNA DAMAGE-REGULATED GENE1 (PDRG1) is part of the prefoldin-like complex (PFDLc) in plants and animals. Whether PDRG1 acts primarily as a subunit PFDLc or an independent not known any eukaryote. Here, we show that impairment activity Arabidopsis thaliana leads to embryonic lethality, case for other proteins UXT AtURI. The subunits are main interactors vivo, interactomes PDRG1, UXT, AtURI strong overlaps, including nuclear RNA polymerases various complexes spliceosome. Our results...
Canopy shade enhances the activity of PHYTOCHROME INTERACTING FACTORs (PIFs) to boost auxin synthesis in cotyledons. Auxin, together with local PIFs and their positive regulator CONSTITUTIVELY PHOTOMORPHOGENIC 1 (COP1), promotes hypocotyl growth facilitate access light. Whether alters cellular redox status thereby affecting responses, remains unexplored. Here, we show that, under shade, high levels increased reactive oxygen species nitric oxide accumulation Arabidopsis. This nitroxidative...
First record of the invasive dinoflagellate Ceratium furcoides (Levander) Langhans 1925 in Argentina and its distribution influence area Yacyretá Reservoir (Paraná River, Argentina-Paraguay)In this study, we report for first time presence Argentina, Reservoir, Paraná River.Though with low population densities (up to 15 cells/ ml), species rapidly spread developed diverse trophic conditions, so it can be considered as established area.Being an region, probably will lower sections River near...
SUMMARY In agricultural crops, forests and grasslands, water deficit often occurs in the presence of cues from neighbouring vegetation. However, most studies have addressed separately mechanisms plant growth responses to these two aspects environment. Here we show that transferring Arabidopsis thaliana seedlings agar containing polyethylene glycol (PEG) restrict availability reduces hypocotyl shade without simultaneous affecting cotyledon expansion or its response shade. Water restriction...
Abstract The prefoldin-like protein UNCONVENTIONAL PREFOLDIN RPB5 INTERACTOR (URI) participates in diverse cellular functions, including homeostasis, transcription, translation, and signal transduction. Thus, URI is a highly versatile protein, although the molecular basis of this versatility remains unknown. In work, we show that Arabidopsis thaliana ( ) (AtURI) possesses large intrinsically disordered region (IDR) spanning most C-terminal part feature conserved yeast human orthologs. Our...
Abstract DELLA transcriptional regulators are central components in the control of plant body form response to environment. This is considered be mediated by changes metabolism hormones gibberellins (GAs), which promote degradation DELLAs. However, here we show that warm temperature or shade reduced stability a GA-insensitive allele Arabidopsis . Furthermore, induced warmth anticipated GA levels and depended on E3 ubiquitin ligase CONSTITUTIVELY PHOTOMORPHOGENIC1 (COP1). COP1 enhanced normal...
In agricultural crops, forests and grasslands, water deficit often occurs in the presence of cues from neighbouring vegetation. However, most studies have separately addressed mechanisms plant growth responses to these two aspects environment. Here we show that drought reduces promotion hypocotyl caused by natural or simulated shade Arabidopsis thaliana. The shade-water interaction depended on CONSTITUTIVELY PHOTOMORPHOGENIC 1 (COP1). COP1 rapidly accumulates nucleus response targets...