I.A. VEGA*, M.C. DAMBORENEA**, C. GAMARRA-LUQUES*, E. KOCH*, J.A. CUETO, A. CASTRO-VAZQUEZ*

BIOCELL, Vol.30, Suppl.S, pp. 367-375, 2006

Abstract This article has no abstract. More >

MARCOS S. DREON¹, HORACIO HERAS^1,2, RICARDO J. POLLERO¹

BIOCELL, Vol.30, Suppl.S, pp. 359-365, 2006

Abstract This article has no abstract. More >

PABLO R. MARTÍN*, CLAUDIO G. DE FRANCESCO**

BIOCELL, Vol.30, Suppl.S, pp. 337-343, 2006

Abstract This article has no abstract. More >

ALEJANDRA L. ESTEBENET^✝, PABLO R. MARTÍN, SILVANA BURELA

BIOCELL, Vol.30, Suppl.S, pp. 329-335, 2006

Abstract This article has no abstract. More >

BIOCELL, Vol.30, Suppl.S, pp. 501-529, 2006

Abstract This article has no abstract. More >

C. DAMBORENEA*, F. BRUSA*, A. PAOLA**

BIOCELL, Vol.30, No.3, pp. 457-468, 2006, DOI:10.32604/biocell.2006.30.457

Abstract Pomacea canaliculata is a common gastropod in freshwater habitats from Central and Northern Argentina, extending northwards into the Amazon basin. Several Platyhelminthes have been reported associated to P. canaliculata, sharing an intimate relationship with this gastropod host. The objectives of this study were to describe the symbiotic species assemblages associated to P. canaliculata in the study area, and to disclose differences among them. Samples were taken in three typical small streams and one artificial lentic lagoon, all connected with the Río de la Plata estuary. The 81.53% were infested with different symbiotic (sensu lato) species. Among the Platyhelminthes, the… More >

M. F. IZAGUIRRE, M. N. VERGARA, V. H. CASCO.

BIOCELL, Vol.30, No.2, pp. 309-320, 2006, DOI:10.32604/biocell.2006.30.309

Abstract CAS might have a key role in the apoptosis induced by toxins, acting as anti-apoptotic factor, stimulating the cellular proliferation and the cell contact stabilization. To start to elucidate their role in the brain apoptosis of Bufo arenarum induced by cypermethrin (CY), the expression patterns of CAS and several cell adhesion molecules (CAMs) were established.
Bufo arenarum tadpoles of the control and acute bioassay survival at different doses (39, 156, 625 and 2,500 μg CY/L) and times (24, 48, 72 and 96 h) of CY treatment were fixed in Carnoy, embedded in paraffin and sectioned. CAS and… More >

M.E. RÜTTLER, C.S. YANZÓN, M.J. CUITIÑO, N.F. RENNA, M.A. PIZARRO, A.M. ORTIZ.

BIOCELL, Vol.30, No.2, pp. 301-308, 2006, DOI:10.32604/biocell.2006.30.301

Abstract Enteroaggregative Escherichia coli (EAEC) has been implicated in sporadic diarrhea in children and adults and has been identified as the cause of several outbreaks worldwide. The HEp-2 test remains the gold standard for identification of this pathotype. A 60-65 MDa plasmid encodes the aggregative adherence fimbriae (AAF/I and AAF/II), a transcriptional activator (aggR gene), the enteroaggregative heat-stable enterotoxin EAST1 (astA gene) and a cytotoxin (Pet). The standard assay for EAEC is performed only in research laboratories, because it is expensive, labor intensive and time-consuming. The Polymerase Chain Reaction (PCR) offers the possibility of rapid diagnosis. In the… More >

MARÍA DE LOS A. ALVAREZ, NORA B. DEBATTISTA, NORA B. PAPPANO

BIOCELL, Vol.30, No.1, pp. 39-42, 2006, DOI:10.32604/biocell.2006.30.039

Abstract In our previous studies, bacteriostatic action of flavonoids against Staphylococcus aureus ATCC 25 923 and Escherichia coli ATCC 25 922 was demostrated. In the present work synergism of their combinations in order to improve the bacteriostatic action against the same microorganisms was determined. The experiences were made in nutritive broth, maintaining constant one drug concentration (20 µg/ml) and increasing the other one. A turbidimetric kinetic method was used and by means of a mechanism previously proposed, the minimal inhibitory concentrations (MIC´s) of each flavonoid combination were determined. The MIC´s for assayed combinations against S. aureus were: variable morin More >

Hernández-Castillo¹ FD, Adalberto Aguirre-Aguirre¹, RH Lira-Saldivar², E Guerrero-Rodríguez¹, G Gallegos-Morales¹

Phyton-International Journal of Experimental Botany, Vol.75, pp. 91-101, 2006, DOI:10.32604/phyton.2006.75.091

Abstract The biological efficiency of five stocks of Bacillus subtilis, of the mixture of the bioproducts quitosan and Larrea tridentata extract, and five synthetic fungicides were evaluated against the fungus Alternaria dauci Kühn in laboratory and greenhouse experiments. The effect of these compounds on growth and yield of carrot was also determined. Stocks of the bacteria Bacillus (B3, B9, B15 and a combination of these) and the mixture quitosan- Larrea stimulated carrot development because it reached greater width, length and weight in comparison to the control and the other treatments. Stock B3 was the best in promoting carrot growth More >