A5071437801- Aluminum toxicity and tolerance in plants and animals
- Silicon Effects in Agriculture
- Growth and nutrition in plants
- Plant Stress Responses and Tolerance
- Seed Germination and Physiology
- Plant-Microbe Interactions and Immunity
- Weed Control and Herbicide Applications
- Pesticide and Herbicide Environmental Studies
- Agricultural and Food Sciences
- Geochemistry and Elemental Analysis
- Plant tissue culture and regeneration
- Arsenic contamination and mitigation
- Plant Pathogenic Bacteria Studies
- Allelopathy and phytotoxic interactions
- Photosynthetic Processes and Mechanisms
- Banana Cultivation and Research
- Soil Management and Crop Yield
- Light effects on plants
- Coal and Its By-products
- Plant Pathogens and Fungal Diseases
- Plant pathogens and resistance mechanisms
- Plant responses to water stress
- Heavy metals in environment
- Seed and Plant Biochemistry
- Magnesium in Health and Disease
Instituto Federal Goiano
2016-2022
Universidade Federal de Viçosa
2010-2018
Universidade Federal de Goiás
2018
Universidade Estadual Paulista (Unesp)
2018
AgroBio
2013
Blast, caused by the fungus Pyricularia oryzae, is a major disease of wheat crop in Brazilian Cerrado and represents potential threat to world production. However, information about wheat-P. oryzae interaction still limited. In this work, activities enzymes superoxide dismutase (SOD), catalase (CAT), peroxidase (POX), glutathione-S-transferase (GST), ascorbate (APX), glutathione reductase (GR), (GPX) concentrations (O₂(-)), hydrogen peroxide (H₂O₂), malondialdehyde (MDA) as well electrolyte...
Coffea arabica cultivars Catuaí 44 and IAPAR 59, susceptible resistant, respectively, to the root knot nematode Meloidogyne exigua , were grown in pots containing Si‐deficient soil amended with either calcium silicate (+Si) or carbonate (−Si). There was an increase of 152 100%, Si content tissue cvs 59 +Si compared −Si treatment, but no significant difference between treatments for content. Plants, assessed 150 days after inoculation (d.a.i.) showed that number galls (NG) eggs (NE)...
This study investigated whether the increase in wheat resistance to blast, caused by P yricularia oryzae , potentiated silicon ( S i) is linked changes activity of antioxidative enzymes. Wheat plants (cv. BR 18) were grown hydroponic culture with either 0 (– or 2 m (+ i and half each group inoculated . Blast severity + was 70% lower compared − at 96 h after inoculation (hai). Superoxide dismutase SOD ), catalase CAT peroxidase POX ascorbate APX ) glutathione‐S‐transferase GST activities...
This study aimed to assess the ability of silicon (Si) potentiate defense enzyme activities in rice leaf sheaths and thus reduce sheath blight, caused by Rhizoctonia solani, development. Rice plants BR-Irga 409 Labelle cultivars were grown a hydroponic solution containing 0 (-Si) or 2 mM (+Si) Si inoculated with R. solani. Silicon concentration was significantly higher +Si than -Si 727% for 714% Labelle. The area under relative lesion expansion progress curve lower plants, 34.2% 30.59%...
This study aimed to determine the effect of jasmonic acid (JA), Acibenzolar-S-Methyl (ASM) and calcium silicate (a source soluble silicon, Si), on potentiation soybean resistance Asian rust (ASR). The ASR severity was significantly reduced plants sprayed with ASM or supplied Si in comparison JA deionized water. For chitinases (CHI), significant differences activity between non-inoculated inoculated water occurred at 72 hours after inoculation (hai), 24 hai when 141 Si. β-1,3-glucanases...
This study investigated the effects of silicon (Si) on resistance common bean plants to anthracnose caused by Colletotrichum lindemuthianum. The were grown in a nutrient solution containing 0 (control) or 2 mM Si (+Si) and both photosynthesis antioxidative metabolism levels evaluated. concentrations leaf tissues +Si increased 33% comparison those control plants. Anthracnose severity was reduced 34% net carbon assimilation rate, stomatal conductance water vapor transpiration rate values...
Abstract This study investigated the effect of silicon (Si) on resistance bean plants (cv. ‘Peróla’) to anthracnose, caused by Colletotrichum lindemuthianum , grown in a nutrient solution containing 0 (−Si) or 2 mmol Si L −1 (+Si). The concentration leaf tissue and incubation period increased 55.2% 14.3%, respectively, +Si relation −Si plants. area under anthracnose progress curve severity estimated software QUANT significantly decreased 32.9% 27%, for did not affect total soluble phenolics....
Abstract The use of silicon (Si) in agriculture has attracted a great deal interest from researchers because the numerous benefits this element to plants, especially when they are submitted abiotic and/or biotic types stress. host's increased resistance diseases, promoted by Si, is mainly associated with deposition tissues and potentiation defence mechanisms. However, mechanisms involved Si‐mediated host need be further investigated. Thus, study aimed microscopically biochemically elucidate...
In Brazil, the expansion of agricultural activity and associated indiscriminate use herbicides such as glyphosate is directly related to loss biodiversity in Cerrado. The identification plant species bioindicators herbicide action, especially native area, can help monitoring impacts xenobiotics remaining Thus, this study was designed evaluate possible Cerrado Pouteria torta a bioindicator action via changes physiological performance. At 16 months after sowing, effect evaluated by applying...
Frogeye leaf spot, caused by Cercospora sojina, is one of the most important diseases soybean worldwide. Silicon (Si) known to increase resistance several plant species pathogens. The cultivars Bossier and Conquista, which are susceptible resistant, respectively, frogeye supplied nonsupplied with Si were examined for activities defense enzymes concentrations total soluble phenolics (TSP) lignin-thioglycolic acid (LTGA) derivatives at 8, 14, 16 days after inoculation (dai) C. sojina....
Abstract Frogeye leaf spot ( FLS ), caused by the fungus Cercospora sojina , is one of most important soybean diseases and can cause great yield losses. Several studies have demonstrated that silicon (Si) enhances plant antioxidant system, especially when they are subjected to stresses. Thus, this study was designed evaluate effect Si on resistance concentration reactive oxygen species cellular damage during infection process C. . Plants from cultivars Bossier Conquista, susceptible...
Although magnesium (Mg) is considered an essential element for wheat growth, its importance disease control has often been overlooked, and the physiological features of diseased plants mediated by Mg remain elusive. In this study, effect three concentrations (0·25, 2·5 4 m ) on resistance to leaf blast ( Pyricularia oryzae ), gas exchange, invertase activity, cellular damage foliar concentration photosynthetic pigments nutrients was investigated. Foliar increased from 1·9 3·9 g kg −1 ,...
This study investigated the effects of silicon (Si), acibenzolar-S-methyl (ASM), and potassium phosphite (Phi) on potentiation rice resistance to infection by Bipolaris oryzae. The treatments included soil amended with Si (1.25 g calcium silicate per kg soil), spraying plants ASM (500 mg∙L–1), Phi (5 mL∙L–1), distilled water (control) 24 h before inoculation B. supply were effective in reducing area under brown spot progress curve number lesions cm2 leaf. Polyphenoloxidases activity was...
Dipteryx alata Vog. is a forest species native to the Brazilian Cerrado with great economic potential, but information on seed behavior during germination and accelerated aging lacking. Thus, objective of this study was evaluate quality D. seeds measure possible damage caused by aging. The physiological performance investigated via two experiments: (1) imbibition curve, where were stored in Biochemical Oxygen Demand chamber (B.O.D) at 30 °C 60% relative humidity (RH), for eight days, (2)...
Esse estudo investigou o efeito do silício (Si) na resistência algodoeiro à mancha de ramulária (Ramularia areola). Plantas (cvs. NuOpal e BRS Buriti) foram cultivadas em solução nutritiva nas concentrações 0 (-Si) 2 mM Si L-1 (+Si) aos 30 dias após emergência submetidas inoculação com uma suspensão conídios R. areola. Avaliou-se período incubação (PI), latente (PL60), a severidade, número lesões (NL) por cm² folha, tamanho lesão (TL), concentração foliar as atividades das enzimas defesa...
Abstract Frogeye spot, caused by Cercospora sojina , is one of the major diseases causing yield losses in soybean. Considering potential silicon (Si) to attenuate physiological impairments imposed pathogens infection, this study investigated its effect on leaf gas exchange and chlorophyll (Chl) a fluorescence parameters as well concentrations photosynthetic pigments carbohydrate pools soybean plants from cultivars Bossier Conquista (susceptible resistant frogeye respectively) grown...