Vatairea macrocarpa: Rotton, H. & Klitgård, B.

This study aimed to evaluate the abilities of plant and algae lectins to inhibit planktonic growth and biofilm formation in bacteria and yeasts. Initially, ten lectins were tested onStaphylococcus epidermidis, Staphylococcus aureus, Klebsiella oxytoca, Pseudomonas aeruginosa, Candida albicans, andC. tropicalisat concentrations of 31.25 to 250 μg/mL. The lectins fromCratylia floribunda(CFL),Vatairea macrocarpa(VML),Bauhinia bauhinioides(BBL),Bryothamnion seaforthii(BSL), andHypnea musciformis(HML) showed activities against at least one microorganism. Biofilm formation in the presence of the lectins was also evaluated; after 24 h of incubation with the lectins, the biofilms were analyzed by quantifying the biomass (by crystal violet staining) and by enumerating the viable cells (colony-forming units). The lectins reduced the biofilm biomass and/or the number of viable cells to differing degrees depending on the microorganism tested, demonstrating the different characteristics of the lectins. These findings indicate that the lectins tested in this study may be natural alternative antimicrobial agents; however, further studies are required to better elucidate the functional use of these proteins.

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Binding Studies of α-GalNAc-specific Lectins to the α-GalNAc (Tn-antigen) Form of Porcine Submaxillary Mucin and Its Smaller Fragments

Journal of Biological Chemistry ◽

10.1074/jbc.m704677200 ◽

2007 ◽

Vol 282 (38) ◽

pp. 28256-28263 ◽

Cited By ~ 65

Author(s):

Tarun K. Dam ◽

Thomas A. Gerken ◽

Benildo S. Cavada ◽

Kyria S. Nascimento ◽

Tales R. Moura ◽

...

Keyword(s):

Amino Acid ◽

Biological Activities ◽

Carbohydrate Antigen ◽

Binding Studies ◽

Total Carbohydrate ◽

Binding Model ◽

Group Type ◽

Acid Cleavage ◽

Repeat Domain ◽

Vatairea Macrocarpa

Isothermal titration microcalorimetry (ITC) and hemagglutination inhibition measurements demonstrate that a chemically and enzymatically prepared form of porcine submaxillary mucin that possesses a molecular mass of ∼106 daltons and ∼2300 α-GalNAc residues (Tn-PSM) binds to the soybean agglutinin (SBA) with a Kd of 0.2 nm, which is ∼106-fold enhanced affinity relative to GalNAcα1-O-Ser (Tn), the pancarcinoma carbohydrate antigen. The enzymatically derived 81 amino acid tandem repeat domain of Tn-PSM containing ∼23 α-GalNAc residues binds with ∼103-fold enhanced affinity, while the enzymatically derived 38/40 amino acid cleavage product(s) of Tn-PSM containing ∼11-12 α-GalNAc residues shows ∼102-fold enhanced affinity. A natural carbohydrate decorated form of PSM (Fd-PSM) containing 40% of the core 1 blood group type A tetrasaccharide, and 58% peptide-linked GalNAcα1-O-Ser/Thr residues, with 45% of the peptide-linked α-GalNAc residues linked α-(2,6) to N-glycolylneuraminic acid, shows ∼104 enhanced affinity for SBA. Vatairea macrocarpa lectin (VML), which is also a GalNAc binding lectin, displays a similar pattern of binding to the four forms of PSM, although there are quantitative differences in its affinities as compared with SBA. The higher affinities of SBA and VML for Tn-PSM relative to Fd-PSM indicate the importance of carbohydrate composition and epitope density of mucins on their affinities for lectins. The higher affinities of SBA and VML for Tn-PSM relative to its two shorter chain analogs demonstrate that the length of a mucin polypeptide and hence total carbohydrate valence determines the affinities of the three Tn-PSM analogs. The results suggest a binding model in which lectin molecules “bind and jump” from α-GalNAc residue to α-GalNAc residue along the polypeptide chain of Tn-PSM before dissociating. The complete thermodynamic binding parameters for these mucins including their binding stoichiometries are presented. The results have important implications for the biological activities of mucins including those expressing the Tn cancer antigen.

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Biologia reprodutiva de Vatairea macrocarpa (Benth.) Ducke (Fabaceae –Faboideae) em uma área de Cerrado no município de Chapadinha, MA, Brasil.

Heringeriana ◽

10.17648/heringeriana.v8i1.92 ◽

2014 ◽

Vol 8 (1) ◽

pp. 1-19

Author(s):

Franciane Oliveira Costa ◽

Dayse Castro Rodrigues de Lima ◽

André Luiz Gomes Silva

Keyword(s):

Vatairea Macrocarpa

Vatairea macrocarpa (Benth) Ducke (Fabaceae – Faboideae) é uma espécie arbórea típica do cerrado latu sensu. Sua floração é bianual e ocorre entre os meses de junho a agosto e a frutificação entre os meses de setembro e outubro. As flores são andromonóicas típicas da subfamília Faboideae. A antese é diurna e apresentam néctar como principal recurso floral. As flores foram visitadas por 17 espécies de abelhas, seis espécies de borboletas, quatro espécies de vespideae, por duas espécies de beija-flor e por uma espécie de passeriforme. As visitas iniciam logo ao amanhecer e perduram por todo o dia. Em função do seu comportamento intrafloral, por sua abundância e frequência, as abelhas do gênero Centris e Xylocopa são os polinizadores efetivos de V. macrocarpa, as demais abelhas se comportaram como pilhadoras de recursos florais. V. macrocarpa é auto-incompatível, pois não produziu frutos em experimentos de autopolinização manual e de apomixia.

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RELATIONSHIP BETWEEN MOISTURE CONTENT AND FLAMMABILITY OF CERRADO SPECIES IN SOUTHERN TOCANTINS

FLORESTA ◽

10.5380/rf.v52i1.78543 ◽

2022 ◽

Vol 52 (1) ◽

pp. 122

Author(s):

Marcileia Dias De Oliveira ◽

Marcos Giongo

Keyword(s):

Moisture Content ◽

Plant Species ◽

Correlation Coefficients ◽

Anacardium Occidentale ◽

Moisture Contents ◽

Time To Ignition ◽

The Relationship ◽

Vatairea Macrocarpa ◽

Flammability Parameters ◽

Curatella Americana

This study aimed to analyze the relationship between moisture content and flammability of nine plant species from the Cerrado in southern Tocantins. The species studied were: Machaerium brasiliense, Qualea grandiflora, Luehea grandiflora, Campomanesia guaviroba, Astronium fraxinifolium, Curatella americana, Bauhinia forficata, Vatairea macrocarpa, and Anacardium Occidentale. The plants were analyzed at four moisture contents (M1, M2, M3, and M4). For each level, 50 samples (1 g ± 0.1 g) of each species were collected, and 50 repetitions of burning were performed. The parameters analyzed were: time to ignition (TI), frequency of ignition (FI), duration of combustion (DC), combustion index (CI), flammability value (FV), and height of flames (HF). Our results showed that moisture contents influence flammability in Cerrado plant species. The correlation coefficients between moisture and flammability parameters were r = 0.951 (TI), r = -0.962 (DC), r = -0.977 (HF), and r = -0.988 (FI).

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Isoform Characterisation, Heterologous Expression and Functional Analysis of Two Lectins from Vatairea macrocarpa

Protein and Peptide Letters ◽

10.2174/09298665113209990049 ◽

2013 ◽

Vol 20 (11) ◽

pp. 1204-1210 ◽

Cited By ~ 2

Author(s):

João Alves Filho ◽

Antonia Fernandes do Nascimento ◽

Ana Silva Gondim ◽

Ronniery Pereira ◽

Rodrigo Silva da Cunha ◽

...

Keyword(s):

Functional Analysis ◽

Heterologous Expression ◽

Vatairea Macrocarpa

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INDIVÍDUOS JOVENS DE VATAIREA MACROCARPA SÃO MAIS SENSÍVEIS À FALHAS NO TRANSPORTE DE ÁGUA

Agroecologia: Métodos e Técnicas para uma Agricultura Sustentável - Volume 5 ◽

10.37885/210605006 ◽

2021 ◽

pp. 172-178

Author(s):

Igor Araújo de Souza ◽

Bruno Araújo de Souza ◽

Josiene Naves Carrijo ◽

Tiffani Carla da Silva Vieira ◽

Carla Heloísa Luz de Oliveira ◽

...

Keyword(s):

Vatairea Macrocarpa

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Anti-inflammatory properties of ethanolic extract from Vatairea macrocarpa Leaves

Journal of Ethnopharmacology ◽

10.1016/j.jep.2021.114308 ◽

2021 ◽

pp. 114308

Author(s):

Elisangela dos Santos ◽

Saulo Euclides Silva-Filho ◽

Joyce Alencar Santos Radai ◽

Arielle Cristina Arena ◽

Thiago Leite Fraga ◽

...

Keyword(s):

Ethanolic Extract ◽

Anti Inflammatory ◽

Vatairea Macrocarpa

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EFFECT OF THE FINAL CARBONIZATION TEMPERATURE ON THE QUALITY OF FIVE SPECIES OF CERRADO

FLORESTA ◽

10.5380/rf.v50i4.66996 ◽

2020 ◽

Vol 50 (4) ◽

pp. 1902

Author(s):

Renata Carvalho da Silva ◽

Raquel Marchesan ◽

Gabriella Alves Mendes ◽

Lorrainy Azevedo de Carvalho ◽

Wendel Marciano Freitas Lima dos Santos ◽

...

Keyword(s):

Basic Density ◽

Heat Content ◽

Calorific Value ◽

High Energy ◽

Sensu Stricto ◽

Carbonization Temperature ◽

Pyrolysis Process ◽

Energy Potential ◽

Hydrostatic Balance ◽

Vatairea Macrocarpa

The objective of the research was to characterize the energetic properties of the charcoal from species from the cerrado sensu stricto, as well as to evaluate the effect of the final carbonization temperature. Five species were selected for study. Ten specimens were obtained from the logs of each species, submitted to two treatments with five replicates each. The basic density of the wood was calculated by the hydrostatic balance method. The charcoal was produced by the pyrolysis process of the wood in a muffle furnace adapted to capture the pyrolignous liquor, in which two heating speeds were used with final temperatures of 500 °C and 550 °C. Through the pyrolysis process, the total gravimetric yield of the coal, yield in condensable gas, and non-condensable gas were obtained. The apparent density, the immediate chemical analysis (ICA) of the charcoal was determined and, finally, its calorific value was calculated. The YC presented acceptable values for the species Terminalia glabrescens (35.43%) and Vatairea macrocarpa (32.59%). The volatile material content of Vatairea macrocarpa (22.53%) presented satisfactory values. Fixed carbon, ash and heat content were also considered acceptable for the species Terminalia glabrescens (74.43%, 0.96% 7457.40 kcal.kg-¹), Vatairea macrocarpa (75.21% 0.55% and 7443.57 kcal.kg-¹) and Xylopia aromatica (74.27%, 0.67% and 7365.56 kcal.kg-¹), presenting high energy potential. The YC, YL and YNNC were influenced by the heating speeds as well as the content of volatile materials. The recommended final carbonization temperature is 550 °C.

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