Análise Morfoestrutural E Neotectônica Na Porção Norte Da Bacia Paraíba (Pb)

Alves, Fábio Corrêa; Rossetti, Dilce de Fátima

doi:10.20502/rbg.v16i4.710

Cited by 2 publications

(2 citation statements)

References 12 publications

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“…Lastly, morphostructural lineaments of negative topography (brittle structures) were mapped, according to the distinction proposed by Alves and Rossetti (2015) to investigate lithostructural lineaments, which may attest to an epigenic morphogenesis in the evolution of the canyon. Accordingly, the mapped lineaments correspond to fractures (faults or joints) in bare rocks or segments of rectilinear channels and lithological discontinuities such as bedding, lineations and banding.…”

Section: Methodsmentioning

confidence: 99%

Subterranean river captures in siliciclastic rocks in a semiarid climate: the case of the Poti River Canyon, Brazilian Northeast

Rodrigues,

Maia,

Silva

et al. 2024

RBGeomorfologia

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This research investigates a possible subterranean river capture responsible for the morphogenesis of the Poti RiverCanyon, which crosses the uplifted edge of the Parnaíba Basin, in the northern Northeast of Brazil. Morphological andlithostructural evidence of river captures was analysed using remote sensing products (e.g., drainage network, topography,paleotopography, structural framework) and field expeditions. The results indicated a sudden inflexion of the upper courseof the Poti River, low and anomalous divides in the local geomorphological context, canyon with valley segments exhibitingasynchronous morphologies, and block collapse controlled by dissolution along fracture networks. Given this set of data, wepropose an evolutionary model of subterranean river capture for the formation of the Poti River canyon, which, throughpaleotopographic modelling, was linked to the Pleistocene epoch. This drainage rearrangement would have been influencedby a Neogene-Quaternary morphogenetic framework of structural reactivations, regional uplift, and climatic oscillations. Onthis basis, it was concluded that epigenetic processes were significant for a drainage rearrangement of approximately 10,540km² of areas in a semiarid region with sandstone substrate.

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Section: Methodsmentioning

confidence: 99%

Subterranean river captures in siliciclastic rocks in a semiarid climate: the case of the Poti River Canyon, Brazilian Northeast

Rodrigues,

Maia,

Silva

et al. 2024

RBGeomorfologia

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“…It is a well-known family due to its economic importance, its species are widely used in the perfumery, food and pharmaceutical industries. The use of Cinnamon, as most species of this family are generally called, should also be highlighted (MARQUES; BARROS, COSTA 2004;SANTOS;ALVES, 2013;DAMASCENO et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Phytochemical determination and antimicrobial activity of plant extracts from Cinnamomum amoenum (Ness) Kosterm. (Lauraceae) against salmonella spp. of poultry importance

Dos Santos,

De Souza,

Feitosa

et al. 2023

CLCS

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Salmonellosis is a zoonotic disease that affects commercial birds and causes major economic and productivity losses in the poultry sector. Belonging to the Enterobacteriaceae family, the Gram-negative bacillus of the genus Salmonella has presented itself as a health problem in recent years, as there has been a considerable increase in bacterial resistance, due to the indiscriminate use of antimicrobials as growth promoters. Given this context, bioactives from Brazilian flora, considered one of the most abundant in biodiversity, emerge as an alternative to the use of synthetic products. Thus, this work aimed to determine the chemical compounds of the native species Cinnamomum amoenum (Ness) Kosterm, as well as evaluate the antimicrobial activity of aqueous, ethyl acetate, hexane and ethanolic extracts against different serovars of the genus Salmonella. To obtain the extracts, the plant leaves were dried at 40°C and ground in a knife mill. Subsequently, sterilized by vacuum filtration and roto-evaporated, to completely remove the solvent. The minimum inhibitory concentration (MIC) and minimum bactericidal concentration (CBM) were performed using the broth microdilution method, with serial concentrations ranging from 200-0.09 mg/mL of the extract. As a positive control, gentamicin was used at a concentration of 200 mg/mL. Phytochemical tests revealed the presence of flavonoids, steroids and tannins, the latter present only in the aqueous and ethanolic extracts. Regarding antimicrobial activity, the ethanolic, hexane and ethyl acetate extracts showed inhibitory/bactericidal activity for all tested serotypes and the aqueous extract showed no activity on the tested serotypes. The ethanolic extract and ethyl acetate presented MIC ranging between 25 and 50 mg/mL and MBC ranging between 50 and 100 mg/mL. The hexane extract presented MIC ranging between 50 and 100 mg/mL and MBC with 100 mg/mL. The most susceptible serotypes for the ethyl acetate extract were S. Newport, S. Gallinarum, S. Montevideo, while for the ethanolic extract the most susceptible serotypes were S. Typhimurium, S. Mbandaka, S. Infantis, S. Heidelberg and S. Enteritidis. The results suggest that C. amoenum extracts have antimicrobial potential and could be a viable alternative to be used in poultry farms, thus being a more sustainable and less harmful approach to the consumer, who will be free from overdoses of synthetic antimicrobials that are commonly used. Furthermore, it is essential that new studies regarding the biological activities of C. amoenum are carried out, in order to validate its use in the control of poultry Salmonella.

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Análise Morfoestrutural E Neotectônica Na Porção Norte Da Bacia Paraíba (Pb)

Cited by 2 publications

References 12 publications

Subterranean river captures in siliciclastic rocks in a semiarid climate: the case of the Poti River Canyon, Brazilian Northeast

Subterranean river captures in siliciclastic rocks in a semiarid climate: the case of the Poti River Canyon, Brazilian Northeast

Phytochemical determination and antimicrobial activity of plant extracts from Cinnamomum amoenum (Ness) Kosterm. (Lauraceae) against salmonella spp. of poultry importance

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