Much research has been conducted on the changes in gene expression of model plant Arabidopsis to low-oxygen stress. Flooding results a low oxygen environment root zone. However, there is ample evidence that tolerance soil flooding more than alone. In this study, we investigated physiological response and differential root-related transcription factors (TFs) associated with soybean plants flooding. Differential responses PI408105A S99-2281 ten days were evaluated at physiological,...

Many essential oils (EOs) of different plant species possess interesting antimicrobial effects on buccal bacteria and antioxidant properties. Eugenia klotzschiana Berg (pêra-do-cerrado, in Portuguese) is a Myrtaceae with restricted distribution the Cerrado. The were extracted through hydrodistillation technique using modified Clevenger apparatus (2 hours) chemically characterized by GC-MS. major compounds α-copaene (10.6 %) found oil from leaves natura, β-bisabolene (17.4 dry...

Leishmaniasis and trypanosomiasis are globally widespread parasitic diseases which have been responsible for high mortality rates. Since drugs available their treatment highly hepatotoxic, nephrotoxic cardiotoxic, adherence to therapy has affected. Thus, the search new, more effective safer of these is necessary. Natural products stood out as an alternative searching new bioactive molecules with therapeutic potential. In this study, chemical composition antiparasitic activity essential oil...

This study aimed at determining, for the first time, chemical composition of essential oils from fresh leaves Citrus limonia and latifolia evaluating its in vitro antibacterial, trypanocidal, leishmanicidal cytotoxic effects.The C. were extracted by hydro distillation analyzed GC-MS.The oil yield was 0.8% 0.5% limonia, whereas 17 18 components identified respectively.Major limonene (46.3 %), nerol (10.0 %) 1,8-cineole (13.4 %).In antibacterial activity evaluated against bacteria...

Even though essential oils from Piper aduncum (Piperaceae) have different biological activities, little is known about their application to agricultural areas. White mold a plant disease caused by the phytopathogen Sclerotinia sclerotiorum, which needs be controlled alternative measures. This study aimed at evaluating effect of P. leaves (PL-EO) and inflorescences (PI-EO) on mycelial growth S. sclerotiorum. Essential were obtained hydrodistillation Clevenger-type apparatus while chemical...

ABSTRACT: Campomanesia adamantium is a native fruit species of the Cerrado and used in food medicines as bee pasture. The chemical composition essential oils obtained from plants same have varying constituent proportions due to influence extractive factors, environmental, genetic ontogenetic. This study aimed identify hydrodistillation time on content oil extracted leaves C. . Treatments consisted five extraction times (1, 2, 3, 4, 5h) using Clevenger with replications completely randomized...

RESUMO Campomanesia adamantium é muito utilizada na medicina popular no tratamento de hipertensão, reumatismo e diabetes. Objetivou-se com o presente trabalho avaliar rendimento, a composição química, as atividades antimicrobiana antioxidante do óleo essencial folhas C. submetidas diferentes métodos tempos secagem. O delineamento utilizado foi inteiramente casualizado, oito tratamentos três repetições. extraído por hidrodestilação das analisado CG-EM. tipo secagem influenciou teor química...

Globally, the fungus Sclerotinia sclerotiorum is considered as one of most important phytopathogens, since it affects production several economically crops. Further, difficult to control, thus increasing use pesticides. Therefore, search for new substances, especially those extracted from plants, has received special attention control this plant pathogen. The objective present study was evaluate yield and chemical composition essential oil fresh leaves guava collected during rainy dry...

Chagas disease, which is caused by Trypanosoma cruzi, has been commonly treated nifurtimox and benzonidazole, two drugs that cause several side effects.As a result, the use of natural products for treating neglected diseases increased in recent years plants have become promising alternative to developing new medicines.Therefore, this study aimed determine chemical composition essential oil from fresh flowers Eugenia klotzchiana evaluate first time its trypanocidal cytotoxic potential...

ABSTRACT: The essential oil plants contents can be affected by several factors. For example, in certain plants, collection time has been observed to affect the content and chemical composition of obtained from plant. objective this study was evaluate effect on guava ( Psidium guajava L.) leaves. Leaves were collected at different times day their determined. Collection did not qualitatively oil. However, concentration substances oil, such as α-humulene trans-caryophyllene, significantly vary...

The Annonaceae family consists of ~135 genera with diverse species and a large number chemical compounds arising from the secondary metabolism.However, composition essential oil several such as Cardiopetalum calophyllum has not been completely determined.The leaves (Annonaceae) were collected during different months year, between 5:00 8:00 h in morning, to determine oils.In this study, oils extracted C. calophyllum, typical areas Cerrado Goiás, characterized.The was by hydrodistillation for...

Soil use and management practices influence the quantity quality of soil organic matter (SOM). From this perspective, objective work was to evaluate carbon stock SOM fractions in a no-tillage (NT) crop–livestock integration (CL) system Cerrado biome. The treatments were divided into four areas, subdivided an area under NT with 11 years cultivation, two areas CL 5 or 10 native vegetation (NV). Undisturbed disturbed (Ferralsols) samples collected layers 0.0–0.1, 0.1–0.2, 0.2–0.4, 0.4–0.6 m for...

Objetivou-se, com este trabalho, avaliar o efeito do espaçamento e da complementação hídrica no crescimento produtividade pinhão-manso. O experimento foi conduzido na área experimental Instituto Federal Goiano, campus Rio Verde,GO, período de 12/09/2009 a 30/04/2011, delineamento blocos casualizados três repetições, os fatores foram sete espaçamentos duas condições hídricas, cada parcela constituída 16 plantas, sendo as quatro plantas centrais útil. Aos 60 dias após transplantio das mudas...

The Cerrado is one of the world's biodiversity hotspots and Brazil’s second largest biome. Many native species Brazilian provide fruits that have unique sensory characteristics high nutritional value. This study aimed at characterizing pulp Eugenia klotzschiana O. Berg, concerning its proximal composition, bioactive compound content antioxidant activity. under had moisture (89.47 g kg-1) caloric (96.07 kcal values whereas contents protein (0.59 lipids (2.35 were low. cerrado pear also iron...

ABSTRACT Crambe has been studied as an option in crop rotation systems order to provide raw material for biodiesel production. This study aimed evaluate the effect of raising soil base saturation and addition phosphorus (P) on vegetative development, grain yield oil content crambe. The experiment was carried out a Oxisol, arranged factorial scheme (4 x 3), with 4 replicates (48 plots), completely randomized blocks. Four levels (34 - natural soil, 40, 50 60%) three P doses (0, 40 80 kg ha-1...

Psidium guajava L. is native to Central and South America. It widely distributed well adapted Brazil, a producer of essential oils rich in terpenes. The objective this study was evaluate the effects natural artificial drying on content chemical composition oil guava leaves (Psidium L.) grown Rio Verde (GO). two treatments consisted fresh either naturally shade or artificially at 40°C. Chemical analyzed qualitatively quantitatively by gas coupled with mass spectrometer chromatography (GC/MS)...

RESUMO O objetivo deste estudo foi avaliar o efeito antibacteriano e tripanocida in vitro do extrato hidroalcóolico das raízes de Tradescantia sillamontana Matuda (Commelinaceae), conhecida popularmente como veludo branco. Foi avaliada a atividade antibacteriana frente às bactérias Streptococcus mitis (CIM = 100 µg/mL; CMB 150 µg/mL), mutans 200 220 sanguinis 400 425 sobrinus 420 µg/mL) Bacteroides fragilis 430 pelo método diluição em caldo. Os protozoários da família tripanossomatídeo...

This study aimed to verify the effect of phosphorus and liming doses on morphological nutritional characteristics D. nigra seedlings. The experiment was conducted using a completely randomized 4x4 factorial design. treatments consisted 4 levels doses. Morphological analyses plants were measured. There no significant interactions between x P. presented differences for when analyzed separately. best productive performances found an increase in base saturation 48.07% 54.76%. showed linear...

Um dos principais atributos do solo é a estrutura, pois importante principalmente no que tange à dinâmica da água solo.Assim, utilização de práticas conservacionistas manejo vêm ganhando destaque na agricultura.O objetivo deste trabalho foi avaliar velocidade infiltração básica pelo método infiltrômetro anel para diferentes agroecossistemas.A pesquisa desenvolvida em áreas pastagem degradada e sistemas agroflorestal município Capitão Poço, Pará.As amostras foram coletadas com o auxílio trado...

O crambe é uma espécie vegetal oleaginosa potencial fornecedora de matéria prima para biodiesel. No Brasil, seu cultivo incipiente, sendo necessárias informações relativas ao manejo da cultura. Assim, o objetivo com este trabalho foi avaliar efeito quatro espaçamentos entre linhas (0,15; 0,30; 0,45; e 0,60 m) três níveis calagem (0; 1.500; 3.000 kg ha-1 calcário) sobre crescimento produtividade cultura do crambe. experimento desenvolvido em condições campo na área experimental agroenergia IF...

O governo brasileiro tem incentivado a producao de biodisel no pais, por meio da sua mistura diesel. Assim, para evitar competicao com o oleo industria alimentos, novas especies oleaginosas sido investigadas como fontes alternativas oleo. Dentre estas, pinhao manso ( Jatropha curcas L.) apresenta um grande potencial producao, principalmente pela agricultura familiar, porem, sao raras as informacoes tecnicas cerca do seu cultivo, incluindo-se distribuicao sistema radicular desta especie,...

Hymenaea stigonocarpa is anarboreal medicinal species used in the recovery of degraded areas. However, little known about its nutritional requirements during seedling phase, especially concerning to potassium. In this context, aim study was evaluate if potassium doses promote morphophysiological changes seedlings.A completely randomized design, consisting six KCl (0, 50, 100, 150, 200 and 250 mg dm-3KCl) four replications applied. Biometric, biomass, physiological content variables were...

Acrocarpus fraxinifolius, known as Indian cedar, has little forestry development in Brazil. Thus, the objective of this study was to find best relation between nutrition and container (tube) volume seedlings species. The experiment carried out a 2 × 8 factorial scheme (2 containers fertilizers), with polypropylene tubes 50 110 cm³ being tested, following fertilization treatments: one control, 4 increasing doses osmocotee plus: 3, 5, 7, 9 kg per m³ substrate, fractionated mineral...

The objective was to evaluate the effect of addition increasing doses nitrogen (N) in grain sorghum on development sandy textured soil with low fertility Cerrado conditions. work carried out at Fazenda Pântano located, municipality Jataí – Goiás, Brasil. seeds used for experiment were AG 1085 variety. Using five N: 0 (control), 50, 100, 150 and 200 kg ha-1, source being urea, replications each, a design randomized blocks, totaling 25 experimental units. variables evaluated were: stem length...