Thiago Corrêa de Souza

Composition, and Anti‐Inflammatory and Antioxidant Activities of the Volatile Oil from the Fruit Peel of Garcinia brasiliensis

The composition of the volatile oil obtained by hydrodistillation from the fruit peel of Garcinia brasiliensis (Mart.) Planch. et Triana was determined by GC/MS. A total of 38 components were identified, including γ‐muurolene (10.3%), spathulenol (8.7%), δ‐cadinene (8.3%), torreyol (8.0%), α‐cadinol (7.0%), cadalene (6.3%), and γ‐cadinene (5.3%). Oxygenated sesquiterpenes (43%) were the main group of compounds. The anti‐inflammatory activity of the volatile oil was evaluated through the rat‐paw edema model induced by carrageenan. Inhibition of the inflammatory process was noticed 3 h after carrageenan administration. In addition, the volatile oil showed poor antioxidant activity.

Complete assignment of the 1H and 13C NMR spectra of garciniaphenone and keto-enol equilibrium statements for prenylated benzophenones.

This article reports the structural elucidation by IR, UV and MS spectroscopic data along with 1H and 13C NMR chemical shift assignments of two benzophenones isolated from the fruit pericarp of Garcinia brasiliensis Mart. (Clusiaceae): garciniaphenone, (1R,5S,7S)‐3‐benzoyl‐4‐hydroxy‐6,6‐dimethyl‐5,7‐di(3‐methyl‐2‐butenyl)bicyclo[3.3.1]non‐3‐ene‐2,9‐dione, a novel triprenylated benzophenone; and 7‐epi‐clusianone, a tetraprenylated benzophenone that has already been extracted from another species of the same family. Furthermore, the keto‐enol tautomeric equilibrium at solution‐state was described for these compounds by 1D and 2D NMR spectral methods and one attempt to rationalize the different ratios between the noted tautomers was based on stereochemical features. Copyright

GROWTH AND PHYSIOLOGICAL RESPONSES OF TREE SPECIES (Hymenaea courbaril L., Peltophorum dubium (Spreng.) Taub. and Myroxylon peruiferum L. F.) EXPOSED TO DIFFERENT COPPER CONCENTRATIONS IN THE SOIL

1 Received on 13.06.2017 accepted for publication on 01.03.2018. 2 Universidade Federal de Lavras, Programa de Pós-Graduação em Botânica Aplicada, Lavras, MG-Brasil. E-mail: <danimarques.bio@gmail.com>. 3 Universidade José do Rosário Vellano, Instituto de Ciências Agrárias, Alfenas, MG-Brasil. E-mail: <adriano.silva@unifenas.br>, <jose.mantovani@unifenas.br> and <DalvanaSousa@hotmail.com>. 4 Universidade Federal de Alfenas, Instituto de Ciências da Natureza, Alfenas, MG-Brasil. E-mail: <thiagonepre@hotmail.com>. *Corresponding author.

Analysis of photosynthetic and water-use efficiency of piper aduncun in a degraded area from gaseous exchange

Background Plants are able to survive in a distinctive environment from its usual one, especially due to morphological or physiological changes, thus a good ability of acclimatization and phenotypic plasticity is present [1]. Light and water availability are decisive factors in a plant’s survival, the occurrence of those is irregular, because luminosity is broadly available on the edges and large clearingsaccording to the criteria proposed by Souza, et al.[3] and scarce inside woods [2] and water availability depends on local pluviosity. Considering this, studies relating photosynthesis and water-use efficiency to phenotypic plasticity are major to the discovery of species capable of tolerating degraded environments with diverse luminous and pluvious intensity, thus, contributing to the enhancement of them. Based on the given information, this study aims to look into the behavior of these variables in Piper aduncum through gas exchange in distinctive spots of a gully.