A5069288453- Plant Molecular Biology Research
- Photosynthetic Processes and Mechanisms
- Lipid metabolism and biosynthesis
- Plant nutrient uptake and metabolism
- Light effects on plants
- Plant tissue culture and regeneration
- Plant Stress Responses and Tolerance
- Plant Virus Research Studies
- Plant Reproductive Biology
- Aluminum toxicity and tolerance in plants and animals
- Plant-Microbe Interactions and Immunity
- Plant Micronutrient Interactions and Effects
- Enzyme Catalysis and Immobilization
- Biodiesel Production and Applications
- Transgenic Plants and Applications
- Alkaloids: synthesis and pharmacology
- Plant Physiology and Cultivation Studies
- Soybean genetics and cultivation
- Pharmaceutical and Antibiotic Environmental Impacts
- Genetic Mapping and Diversity in Plants and Animals
- Plant biochemistry and biosynthesis
- Soil Management and Crop Yield
- Plant Diversity and Evolution
- Plant Parasitism and Resistance
- Plant Surface Properties and Treatments
Universidade Federal do Rio Grande do Sul
2011-2022
Leiden University
2009
REVIEW article Front. Plant Sci., 14 May 2013Sec. Cell Biology Volume 4 - 2013 | https://doi.org/10.3389/fpls.2013.00133
Abstract Background Triacylglycerides (TAGs) are a class of neutral lipids that represent the most important storage form energy for eukaryotic cells. DGAT (acyl-CoA: diacylglycerol acyltransferase; EC 2.3.1.20) is transmembrane enzyme acts in final and committed step TAG synthesis, it has been proposed to be rate-limiting plant lipid accumulation. In fact, two different enzymes identified several species, DGAT1 DGAT2, main responsible synthesis. These do not share high DNA or protein...
The plant hormone auxin (indole-3-acetic acid or IAA) regulates development by inducing rapid cellular responses and changes in gene expression. Auxin promotes the degradation of Aux/IAA transcriptional repressors, thereby allowing response factors (ARFs) to activate transcription auxin-responsive genes. enhances binding proteins receptor TIR1, which is an F-box protein that part E3 ubiquitin ligase complex SCF(TIR1). Binding leads via 26S proteasome, but evidence for SCF(TIR1)-mediated...
Triacylglycerols (TAGs), which consist of three fatty acids bound to a glycerol backbone, are major storage lipids that accumulate in developing seeds, flower petals, pollen grains, and fruits innumerous plant species. These great nutritional nutraceutical value and, thus, common source edible oils for human consumption industrial purposes. Two metabolic pathways the production TAGs have been clarified: an acyl CoA-dependent pathway acyl-CoA-independent pathway. Lipid metabolism, specially...
MicroRNAs (miRNAs) are important post-transcriptional regulators of plant development and seed formation. In Brassica napus, an edible oil crop, valuable lipids synthesized stored in specific tissues during embryogenesis. The miRNA transcriptome B. napus is currently poorly characterized, especially at different developmental stages. This work aims to describe the miRNAome developing seeds by identifying plant-conserved novel miRNAs comparing abundance mature versus seeds. Members 59...
Iron (Fe) and zinc (Zn) are essential micronutrients required for proper development in both humans plants. Rice (Oryza sativa L.) grains the staple food nearly half of world's population, but a poor source metals such as Fe Zn. Populations that rely on milled cereals especially prone to Zn deficiencies, most prevalent nutritional deficiencies humans. Biofortification is cost-effective solution improvement quality crops. However, better understanding mechanisms underlying grain accumulation...
Plant development is highly affected by light quality, direction, and intensity. Under natural growth conditions, shoots are directly exposed to whereas roots develop underground shielded from direct illumination. The photomorphogenic strongly represses shoot elongation promotes root growth. Over the years, several studies helped elucidation of signaling elements that coordinate perception underlying developmental outputs. Light exposure has diverse effects on main lateral (LR) formation. In...
Ribosome-inactivating proteins (RIPs) are enzymes that inhibit protein synthesis after depurination of a specific adenine in rRNA. The RIP family members classified as type I RIPs contain an RNA-N-glycosidase domain and II lectin (B chain) addition to the glycosidase (A chain). In this work, we identified 30 new plant characterized 18 Ricinus communis RIPs. Phylogenetic functional divergence analyses indicated emergence probably occurred before monocot/eudicot split. We also report...
Peroxidases are enzymes that catalyze the reduction of hydrogen peroxide, thus minimizing cell injury and modulating signaling pathways as response to this reactive oxygen species. Using a phylogenetic approach, we previously identified new peroxidase family composed small subset ascorbate (APx) homologs with distinguished features, which named peroxidase-related (APx-R). In study, showed APx-R is an ascorbate-independent heme peroxidase. Despite being annotated cytosolic protein in public...
Apple is a fruit crop cultivated worldwide. orchards are exposed to diverse set of environmental and biological factors that affect the productivity sustainability culture. Many efforts costs for apple production rely on reducing incidence fungal diseases, one main diseases scab caused by fungus Venturia inaequalis. The economic impact has guided many breeding programs search cultivars resistant scab. Introgression from wild relatives been successful some extent, genetic engineering even...
Background Triacylglycerols (TAGs) are the main seed storage lipids of plants. TAGs chemichal properties largely dependent on their fatty acid composition. Diacylglycerol Acyltransferase (DGAT) genes encode enzymes needed for TAG biosynthesis. Different types DGAT (named DGAT1, DGAT2, DGAT3 and DAcT) have been identified in DGAT1 DGAT2 well characterized, but little is known about DAcT most plant species. The understanding biosynthesis enzymatic steps its transcriptional regulation plants...
The diversity of diacylglycerol acyltransferases (DGATs) indicates alternative roles for these enzymes in plant metabolism besides triacylglycerol (TAG) biosynthesis. In this work, we functionally characterized castor bean (Ricinus communis L.) DGATs assessing their subcellular localization, expression seeds, capacity to restore biosynthesis mutant yeast and evaluating whether they provide tolerance over free fatty acids (FFA) sensitive yeast. RcDGAT3 displayed a distinct located vesicles...
Abstract Following germination, seedlings grown in light show a photomorphogenic development with open and green cotyledons robust root system. The perception by the photoreceptors activate autotrophic photosynthetic metabolism to sustain growth of whole plant. Several studies have evaluated transcriptional responses signals. Nevertheless, evaluating single source experiment might bias identificationof general, reproducible responses. In order identify widespread light-dependent signaling...