A5003614993- Plant tissue culture and regeneration
- Plant Molecular Biology Research
- Plant nutrient uptake and metabolism
- Growth and nutrition in plants
- Alkaloids: synthesis and pharmacology
- Chemical synthesis and alkaloids
- Plant Gene Expression Analysis
- Bioactive natural compounds
- Plant biochemistry and biosynthesis
- Plant Reproductive Biology
- Seed Germination and Physiology
- Light effects on plants
- Agricultural and Food Sciences
- Molecular Biology Techniques and Applications
- Insect Resistance and Genetics
- Silicon Effects in Agriculture
- Allelopathy and phytotoxic interactions
- Biochemical Analysis and Sensing Techniques
- Crop Yield and Soil Fertility
- Plant responses to water stress
- Polysaccharides and Plant Cell Walls
- Plant Pathogens and Resistance
- Traditional and Medicinal Uses of Annonaceae
- Aluminum toxicity and tolerance in plants and animals
- Plant Micronutrient Interactions and Effects
Universidade Federal do Rio Grande do Sul
2011-2022
Brazilian Agricultural Research Corporation
2007-2010
REVIEW article Front. Plant Sci., 14 May 2013Sec. Cell Biology Volume 4 - 2013 | https://doi.org/10.3389/fpls.2013.00133
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...
Adventitious root (AR) development takes place in an intricate cellular environment. Reactive oxygen species (ROS) and antioxidant defenses, triggered by wounding cuttings, can modulate this process. A comparative assessment of biochemical anatomical parameters at critical rooting stages hard- ( Eucalyptus globulus Labill.) easy- grandis W.Hill ex Maiden) to-root was carried out. Microcuttings from seedlings were inoculated auxin-free AR induction medium and, after 96 h, transferred to...
Erythrina velutina is a Brazilian native tree of the Caatinga (a unique semiarid biome). It widely used in traditional medicine showing anti-inflammatory and central nervous system modulating activities. The species rich source specialized metabolites, mostly alkaloids flavonoids. To date, genomic information, biosynthesis, regulation flavonoids remain unknown this woody plant. As part larger ongoing research goal to better understand metabolism plants inhabiting harsh conditions Caatinga,...
The objective of this work was to determine the genetic variability available for triticale (X Triticosecale Wittmack) crop improvement in Brazil. Forty-two wheat genomic microsatellites were used estimate molecular diversity 54 genotypes, which constitute base one major breeding programs country. Average heterozygosity 0.06 and average effective number alleles per locus 2.13 1.61, respectively, with allelic frequency 0.34. set clustered genotypes into seven groups, even when germplasm...
Natural products of pharmaceutical interest often do not reach the drug market due to associated low yields and difficult extraction. Knowledge biosynthetic pathways is a key element in development biotechnological strategies for plant specialized metabolite production. Erythrina species are mainly used as central nervous system depressants folk medicine important sources bioactive tetracyclic benzylisoquinoline alkaloids (BIAs), which can act on several pathology-related biological targets....
Clonal Eucalyptus propagation is essential for various industry sectors. It requires cuttings to successfully develop adventitious roots (ARs). Environmental conditions are influential on AR development and may be altered modulate the productivity of hard-to-root clones. The current knowledge gap in research physiological patterns underlying commercial-scale results hinders design novel strategies. This study aimed identify variation AR-relevant parameters contrasting seasons species with...
O objetivo deste trabalho foi determinar a capacidade de crescimento radicular 75 genótipos cereais inverno em cultivo hidropônico, diferentes concentrações alumínio, avaliar relação entre o grau tolerância/sensibilidade, solução hidropônica, e resistência/suscetibilidade ao crestamento campo. Os cevada, triticale, centeio, trigo Aegilops tauschii foram avaliados hidroponia, com Al3+ que variaram 0,5 (cevada), 2 6 (triticale), 10 (centeio) mg L-1 (trigo Ae. tauschii). delineamentos...
Auxin is critical for plant growth and development. The main natural auxin indole-3-acetic acid (IAA), whereas 1-naphthalene acetic (NAA) a synthetic form. Auxin-Binding Protein 1 (ABP1) specifically binds auxins, presumably playing roles as receptor in nontranscriptional cell responses. ABP1 structure was previously established from maize at 1.9 Å resolution. To gain further insight on structural biology, this study carried out employing molecular dynamics simulations of the complete models...
Psychotria is the largest genus in Rubiaceae. South American species of are promising sources natural products, mostly due to bioactive monoterpene indole alkaloids they accumulate. These can have analgesic, antimutagenic, and antioxidant activities different experimental models, among other pharmacological properties interest. Propagation genotypes with relevant pharmaceutical interest important for obtaining products a sustainable standardized fashion. Besides clonal propagation elite...
Changes in root architecture are an important adaptive strategy used by plants response to limited nutrient availability increase the odds of acquiring them. The quiescent center (QC) plays role altering meristem activity causing differentiation and therefore, inducing a determinate growth program. arabidopsis mutant pdr23 presents primary short presence nitrate is inefficient use nucleic acids as source phosphorus. In this study effect mutation on QC maintenance under low phosphorus (P)...
Passiflora suberosa L. (Passifloraceae) can be found throughout the Americas, and has several medicinal properties, including antioxidant, antibacterial, anti-hemolytic, hypolipidemic, hypoglycemic activities. Germination rates of P. are low, even with dormancy breaking treatments, posing an obstacle for its multiplication. Vegetative propagation is a valuable approach to produce clones elite individuals important pharmacological characteristics, affording fast genetic improvement biomass...