17 documents found, page 1 of 2
Propagation of Cunila galioides Benth.: a Medicinal and Aromatic Species Native...
Pauletti,Gabriel Fernandes; Silvestre,Wendel Paulo; Rota,Luciana Duarte; Barros,Ingrid Bergman Inchausti de; Echeverrigaray,SergioAbstract Cunila galioides Benth. is an aromatic and medicinal plant widely used in the traditional medicine of South Brazil. The essential oil of one of its chemotypes has high citral contents, an oxygenated monoterpene used in perfumery, cosmetics, and food industries. The seeds of C. galioides have low germination percentages and there are few studies regarding its vegetative propagation. Thus, this study aim...
Morphological characterization and molecular identification of Colletotrichum s...
Andrioli,Joel; Scariot,Fernando Joel; Delamare,Ana Paula Longaray; Echeverrigaray,SergioABSTRACT: The highlands of Southern Brazil contribute with 40% of Brazilian persimmon production. Although expanding, persimmon production faces major problems caused by anthracnose disease (black spot), including fruit rot and necrosis of leaves. Several Colletotrichum species (C. horii, C. gloeosporioides, among others) are implicated in persimmon anthracnose around the world. To identify Colletotrichum speci...
Poejo (Cunila galioides Benth.) Production in Five Agroecological Regions of Ri...
Pauletti,Gabriel Fernandes; Silvestre,Wendel Paulo; Rota,Luciana Duarte; Echeverrigaray,Sergio; Barros,Ingrid Bergman Inchausti deAbstract The objective of this study was to evaluate the biomass and essential oil production of nine populations of poejo (Cunila galioides) cultivated in five agroecological regions of the state of Rio Grande do Sul, under different edaphoclimatic conditions. The experiments were performed in field conditions in Erechim, Caxias do Sul, Pelotas, São Francisco de Paula, and Santa Vitoria do Palmar. The experime...
A rapid and reliable method for the clonal isolation of Acanthamoeba from envir...
Zanella,Janice; Costa,Sergio Olavo Pinto da; Zacaria,Jucimar; Echeverrigaray,SergioAcanthamoeba are abundant in a wide range of environments, and some species are responsible for cutaneous infections, keratitis, and granulomatous amoebic encephalitis (GAE). The conventional detection and isolation of amoeba from clinical and environmental samples involves sampling and culture on non-nutrient Ágar medium. Although efficient, this system requires several transfers in order to eliminate contamin...
Rules extraction from neural networks applied to the prediction and recognition...
Silva,Scheila de Avila e; Gerhardt,Günther J.L.; Echeverrigaray,SergioPromoters are DNA sequences located upstream of the gene region and play a central role in gene expression. Computational techniques show good accuracy in gene prediction but are less successful in predicting promoters, primarily because of the high number of false positives that reflect characteristics of the promoter sequences. Many machine learning methods have been used to address this issue. Neural Network...
Micropropagation of Salvia guaranitica Benth. through axillary shoot proliferation
Echeverrigaray,Sergio; Carrer,Rosane Postingher; Andrade,Luciana BavarescoNodal segments from greenhouse grown adult plants of Salvia guaranitica were used to evaluate the effect of culture media and growth regulators on the micropropagation and growth. The highest multiplication rate was obtained on Murashige and Skoog (MS) medium supplemented with 2.22 µM of 6-benzylaminopurine (BAP). The best condition for rooting was MS medium with 2.85 µM indole-3-acetic acid (IAA). Rooted plant...
Comparison of PCR-based molecular markers for the characterization of Proteus m...
Michelim,Lessandra; Muller,Gabriela; Zacaria,Jucimar; Delamare,Ana Paula Longaray; Costa,Sérgio Olavo Pinto da; Echeverrigaray,SergioProteus mirabilis is one of the most important pathogens associated with complicated urinary tract infections (acute pyelonephritis, bladder infections, kidney stones) and bacteremia, affecting patients with anatomical abnormalities, immunodeficiency, and long-term urinary catheterization. For epidemiological purposes, various molecular typing methods, such as pulse-field gel electrophoresis (PFGE) or ribotypin...
Aeromonas associated diarrhoeal disease in south Brazil: prevalence, virulence ...
Guerra,Ivani M.F.; Fadanelli,Raquel; Figueiró,Manuela; Schreiner,Fernando; Delamare,Ana Paula L.; Wollheim,Claudia; Costa,Sérgio Olavo P.Aeromonas were isolated from 27 (6.6%) of 408 patients admitted with acute gastroenteritis in two hospitals at Rio Grande do Sul, Brazil. Isolates were classified as A. hydrophila (51.8%), A. caviae (40.8%), and A. veronii biotype sobria (7.4%). The highest prevalence of Aeromonas associated infections occurred in lactants and children. Virulence genes (aerA -aerolysin/hemolysin, ahpA -serine-protease, satA - g...
Genetic relationships among species of the genus Bothrops based on RAPD markers
Grazziotin,Felipe; Echeverrigaray,SergioThe genetic relationships among 11 species of Bothrops found in Brazil were determined using random amplified fragment (RAPD) information. A total of 239 amplified bands were scored using 20 aleatory primers. Most of the bands (88.7%) were polymorphic. Phylogenetic analysis of the data determined three similarity groups within Bothrops: Group I- B. alternatus, B. neuwiedi, B. cotiara, and B. jararacusu; Group I...
Presence of the yeast Candida tropicalis in figs infected by the fruit fly Zapr...
Gomes,Luiz H.; Echeverrigaray,Sergio; Conti,José H.; Lourenço,Marcus Vinicius M.; Duarte,Keila M.R.In the last years, the fruit fly Zapronius indianus became the most important plague of Brazilian fig production. A fermentation process is associated with infection of the fruit by this fly. A single yeast species, Candida tropicalis, was identified in all the infected figs. The presence of one species and the low genetic variability (RAPD) of the isolates indicates an uncommonly strict interaction between C. ...