A5019283130- Plant nutrient uptake and metabolism
- Plant Molecular Biology Research
- Plant Reproductive Biology
- Plant Stress Responses and Tolerance
- Plant Micronutrient Interactions and Effects
- Plant responses to water stress
- Plant Virus Research Studies
- Polysaccharides and Plant Cell Walls
- Phytase and its Applications
- Legume Nitrogen Fixing Symbiosis
Universidad Andrés Bello
2022-2025
Millennium Science Initiative
2022-2025
Millennium Institute for Integrative Biology
2024-2025
Health First
2025
Pontificia Universidad Católica de Chile
2017-2019
Summary Root hairs (RH) are excellent model systems for studying cell size and polarity since they elongate several hundred‐fold their original size. Their tip growth is determined both by intrinsic environmental signals. Although nutrient availability temperature key factors a sustained plant growth, the molecular mechanisms underlying sensing downstream signaling pathways remain unclear. We use genetics to address roles of surface receptor kinase FERONIA (FER) TOR Complex 1 (TORC) in RH...
Root hair (RH) cells can elongate to several hundred times their initial size, and are an ideal model system for investigating cell size control. Their development is influenced by both endogenous external signals, which combined form integrative response. Surprisingly, a low-temperature condition of 10°C causes increased RH growth in Arabidopsis monocots, even when the rest plant halted. Previously, we demonstrated strong correlation between response significant decrease nutrient...
Root hairs (RH) are mixed tip- and non-tip-growing protrusions derived from root epidermal cells, playing essential roles in nutrient water uptake, anchoring, interactions with soil microorganisms. While availability temperature critical interconnected factors for sustained plant growth, the molecular mechanisms underlying their sensing downstream signaling pathways remain unclear. Here, we show that moderate low (10°C) induces a strong RH elongation response mediated by several components...
Phosphorus (as phosphate, Pi) and iron (Fe) are critical nutrients in plants that often poorly available the soil can be microbially affected. This work aimed to evaluate how plant-rhizobacteria interaction changes due different Pi or Fe nutritional scenarios study underlying molecular mechanisms of microbial modulation these plants. Thus, three proteobacteria (Paraburkholderia phytofirmans PsJN, Azospirillum brasilense Sp7, Pseudomonas putida KT2440) were used inoculate Arabidopsis seeds....
Iron is an essential micronutrient for plants. Little know about how iron loaded in embryo during seed development. In this article we used Perls/DAB staining order to reveal localization at the cellular and subcellular levels different Brassicaceae species. dry seeds of Brassica napus, Nasturtium officinale, Lepidium sativum, Camelina sativa oleracea localizes vacuoles cells surrounding provasculature cotyledons hypocotyl. Using B. napus N. officinale as model plants determined where Our...
Seeds accumulate iron during embryo maturation stages of embryogenesis. Using Arabidopsis thaliana as model plant, it has been described that mature embryos within a specific cell layer, the endodermis. This distribution pattern was conserved in most analyzed members from Brassicales, with exception basal Vasconcellea pubescens also showed elevated amounts cortex cells. To determine whether V. indicative wider non-Brassicales Eudicotyledoneae, we studied different belonging to plant species...
Anemia due to iron deficiency is a worldwide issue, affecting mainly children and women. Seed major source of this micronutrient for feeding however in most crops these levels are too low meet daily needs. Thus, increasing allocation its storage seeds can represent an important step enhance provision humans animals. Our knowledge on seed homeostasis based studies performed the model plant Arabidopsis thaliana, where accumulates endodermis cells surrounding embryo provasculature. It has been...
Abstract The root hair (RH) cells can elongate to several hundred times their initial size, and are an ideal model system for investigating cell size control. Their development is influenced by both endogenous external signals, which combined form a integrative response. Surprisingly, low temperature condition of 10°C causes increased RH growth in Arabidopsis monocots, even when the rest aerial parts plant halted. Previously, we demonstrated strong correlation between response significant...
Abstract An specific group of 2-oxoglutarate (2OG) dioxygenases named as Prolyl 4-Hydroxylases (P4H) produce trans-4-hydroxyproline (Hyp/O) from peptidyl-proline, catalyzing proline hydroxylation cell wall glycoproteins EXT, AGPs, and HRGPs in plant cells, a crucial modification for O -glycosylation. Out the Arabidopsis thaliana 13 P4Hs, P4H5 regulate root hair elongation T-DNA insertional p4h5 mutant has arrested shortened hairs. selectively hydroxylates EXT units indicating that an...
Abstract Root hairs (RH) as a mixed tip- and non-tip growing protrusions that develop from root epidermal cells are important for nutrient water uptake, anchoring, interaction with soil microorganisms. Although availability temperature critical interlinked factors sustained plant growth, the molecular mechanisms underlying their sensing downstream signaling pathways remain unclear. Here, we identified moderate low (10°C) condition triggers strong RH elongation response involving several...
Abstract Root hairs (RH) are excellent model systems for studying cell size and polarity since they elongate several hundred-fold their original size. Their tip growth is determined both by intrinsic environmental signals. Although nutrient availability temperature key factors a sustained plant growth, the molecular mechanisms underlying sensing downstream signaling pathways remain unclear. Here, we identified that low (10°C) triggers strong RH elongation response involving surface receptor...