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MICROBIOLOGY

MI-P1
INTEGRITY OF JNK PATHWAY IS REQUIRED TO PROTECT AGAINST CYTOTOXICITY TRIGGERED BY Vibrio
cholerae EL TOR HAEMOLYSIN
Saka Héctor A, Andreoli V, Sola C and Bocco José L
Dpto. de Bioq. Clínica, Fac. de Cs. Químicas, Univ. Nac. de Córdoba, CIBICI-CONICET. [email protected]
MI-P2
Brucella abortus LUMAZINE SYNTHASE IS A NOVEL VIRULENCE FACTOR
Marchesini, Inés1; Comerci, Diego1; Ugalde, Juan1; Goldbaum, Fernando2 and Ugalde, Rodolfo 1.
1Instituto de Investigaciones Biotecnológicas (IIB-UNSAM), Universidad Nac. de Gral. San Martín, Buenos Aires, 2Instituto de Investigaciones Bioquímicas, Fundación Instituto Leloir, UBA, Argentina. E-mail:
[email protected]
MI-P3
THE Cgt PROTEIN OF Brucella abortus REQUIRES AN INTACT MONONUCLEOTIDE BINDING DOMAIN TO
FUNCTION IN TRANSPORT OF CYCLIC β-1,2-GLUCAN VIRULENCE FACTOR
Roset, Mara S., Ciocchini, Andrés E., Ugalde, Rodolfo A. and Iñón de Iannino, Nora. IIB-INTECH, UNSAM
CONICET, Buenos Aires, Argentina. E-mail: [email protected]
MI-P4
IDENTIFICATION OF ACTIVE SITE RESIDUES OF THE INVERTING GLYCOSYLTRANSFERASE Cgs FROM
Brucella abortus
Ciocchini, Andrés E.1; Roset, Mara S.1; Briones, Gabriel2; Iñón de Iannino, Nora1 and Ugalde, Rodolfo A.1
IIB-INTECH, UNSAM-CONICET, Bs. As, Argentina. E-mail: [email protected]
MI-P5
CONSTRUCTION AND CHARACTERIZATION OF A Brucella abortus MUTANT DEFECTIVE IN
PHOSPHATYDILETHANOLAMINE
Bukata, Lucas1; Comerci, Diego J. 1; Altabe, Silvia2; de Mendoza, Diego2 and Ugalde, Rodolfo A. 1
1Instituto de Investigaciones Biotecnológicas (IIB-UNSAM), Buenos Aires; 2Instituto de Biología Molecular y Celular
de Rosario (IBR). E-mail: [email protected]
MI-P6
CHARACTERIZATION OF Brucella abortus RpoN: GENETIC COMPLEMENTATION OF Sinorhizobium meliloti
ntrA MUTANT.
Iannino, Florencia, Ugalde, Rodolfo A. and Iñón de Iannino, Nora. IIB-INTECH, UNSAM-CONICET. Buenos Aires,
Argentina. E-mail:[email protected]
MI-P7
THE pha GENE CLUSTER OF Brucella abortus INVOLVED IN pH ADAPTATION.
Lerner, Betiana; Roset, Mara S.; Ciocchini, Andrés E.; Iannino, Florencia and Iñón de Iannino, Nora. Instituto de
Investigaciones Biotecnologicas, IIB-INTECH, UNSAM, Buenos Aires, Argentina. E-mail: [email protected]
MI-P8
IivA OF Brucella INTERACTS WITH PHOSPHOLIPIDS UNDERGOING A STRUCTURAL REARRANGEMENT
M. Carrica1, P. Craig2, S. Alonso3, F. Golbaum2,J. Sabio Garcia1, O. Rossetti1 y S. Cravero1. 1Instituto de
Biotecnología-INTA, Morón. 2Instituto Fundación Leloir, Cap. Fed. 3Universidad Nacional de Quilmes, Bernal.
[email protected]
MI-P9
NITRIC OXIDE PRODUCTION IN BOVINE AND MURINE MACROPHAGES CELL LINES INOCULATED WITH
Brucella abortus
Serafino, J.; Conde, S.; Zabal, O.; Samartino, L.
Seccion Brucelosis, Inst. Patobiología, INTA Castelar, 1712 Bs.As, Argentina. e-mail: [email protected]
MI-P10
A RECOMBINANT S19 Brucella abortus EXPRESSING A Babesia bovis ANTIGEN IS IMMUNOSTIMULATORY
Sabio y García, Julia1; Macedo, Gilson2; Barsante, M2; Carvalho, N2; Carrica, M1; Farber, M1; Cravero, S1; Campos,
E1; Costa, S2 y Osvaldo R1. 1Inst. de Biotecnología INTA, Hurligham, Argentina. 2Dep. de Bioq. e Imunologia, Inst.
Ciencias Biologicas, UFMG, Belo Horizonte, Brazil. [email protected].
MI-P11
IDENTIFICATION AND CHARACTERIZATION OF A NOVEL EXTRACELLULAR PHOSPHOLIPASE PRESENT IN
CLINICAL ISOLATES OF Enterobacter aerogenes
Fedrigo, Griselda V.; Clementín, Ana; Castelli, María E. and García Véscovi, Eleonora
Instituto de Biología Molecular y Celular de Rosario (IBR-CONICET), Fac. de Cs. Biológicas y Farmacéuticas,UNR.
Suipacha 531, 2000 Rosario, Argentina. E-mail: [email protected]
MI-P12
ALTERNATIVE SECRETION MECHANISM OF α-HEMOLYSIN OF E. coli BY MEMBRANE BLEBS.
María Florencia Henning 1Vanesa Herlax1 and Laura Bakás1,2.
1.INIBIOLP, Fac Cs. Médicas, 60 y 120 La Plata (1900). 2. Dto. Cs. Biológicas, Fac. Cs. Exactas, 47 y 115 La Plata
(1900) E-mail: [email protected]
MI-P13
DOES α-HEMOLYSIN OF E. coli FORM AN OLIGOMER STRUCTURE WHEN IT IS BOUND TO MEMBRANES?
Vanesa Herlax1 and Laura Bakás1,2.
1.INIBIOLP, Fac Cs. Médicas, 60 y 120 La Plata (1900).
2. Dto. Cs. Biológicas, Fac. Cs. Exactas, 47 y 115 La Plata (1900)

MI-P14
CHOLESTEROL DEPENDENT Bordetella pertussis ATTACHMENT TO HOST CELLS IS NOT LINKED TO THE
BACTERIAL VIRULENT STATE
Lamberti, Yanina, Perez Vidakovics, M Laura, and Rodríguez, M. Eugenia CINDEFI, Fac. de Ciencias Exactas,
UNLP, 47 y 115, La Plata (1900), Argentina. E-mail: [email protected]

MI-P15
DIFFERENTIAL GROWTH PHASE-DEPENDENT REGULATION OF O ANTIGEN SYNTHESIS IN Shigella
flexneri: ROLE OF THE RfaH ELONGATION FACTOR
Carter, Javier A., Blondel Carlos J., Álvarez, Sergio A., and Contreras, Inés.
Laboratorio de Microbiología, Departamento de Bioquímica y Biología Molecular, Facultad de Ciencias Químicas y
Farmacéuticas, Universidad de Chile.
E-mail: [email protected]
MI-P16
MOLECULAR CHARACTERIZATION OF INVASIVE GENES OF Shigella spp.
Fernández, Marcelo A.1,2, J. Gotta1, S. Giugno3, P. J. de Urraza 1,2. (1)Cátedra de Microbiología General, Dpto. de
Cs. Biológicas, Fac. de Cs. Exactas, U.N.L.P., 47 y 115 (1900), (2) CIDCA, Dpto. de Química, Fac. de Cs. Exactas.
U.N.L.P. E-mail: [email protected]. (3) Laboratorio Central del Hospital de Niños "Sor María
Ludovica" de La Plata.

MI-P17
THE Salmonella enterica RstA/RstB SYSTEM AND THE RpoS-DEPENDENT RESPONSE
Cabeza, M. Laura, Soncini, Fernando C. and García Véscovi, Eleonora. Instituto de Biología Molecular y Celular de
Rosario (IBR-CONICET), Fac.Cs.Bioquímicas y Farmacéuticas (UNR). Rosario, Argentina. E-mail:
[email protected]
MI-P18
ROLE OF TWO COMPONENT SYSTEMS IN THERMAL REGULATION OF ANTHRAX TOXIN EXPRESSION
Alejandra Haimovich, Diego de Mendoza, and María C. Mansilla.
Instituto de Biología Molecular y Celular de Rosario, Fac de Cs. Bioquímicas y Farmacéuticas, UNR. Suipacha 531,
S2002LRK, Rosario, Argentina. [email protected].
MI-P19
THE PROTEIN INTERACTION MAP OF P36 (ERP) FROM Mycobacterium tuberculosis.
Klepp, Laura, Santangelo Maria de la Paz, BlancoFederico, Cataldi Angel, Bigi Fabiana. Instituto de biotecnología,
INTA. Las Cabañas y Los Reseros (1712) Castelar. Buenos Aires, Argentina. E-mail: [email protected]
MI-P20
EVOLUTION OF Mycobacterium bovis STRAINS IN ARGENTINA.
Caimi, Karina*; Carmen Garcia-Pelayo†; Diego I. Etchechoury*; Gabriela Echeverría; Martin Zumárraga; María Isabel
Romano*; Angel Cataldi* and Stephen Gordon†. *Biotechnology Institute, INTA Castelar, Argentina and †Veterinary
Laboratories Agency (VLA), Surrey, United Kingdom. E-mail: [email protected]
MI-P21
CHARACTERIZATION OF INVASIVE PNEUMOCOCCAL STRAINS THAT BELONG TO THE SPAIN 9V3 CLONAL
COMPLEX
Albarracin Orio, A; P Cortes; G Piñas and J. Echenique. Dpto. Bioquímica Clínica, CIBICI-CONICET, Fac.
Cs.Químicas, UNC, Córdoba. E-mail: [email protected]
MI-P22
THE MOLECULAR CHAPERONE ClpL IS INVOLVED IN THE ACID-STRESS INDUCED AUTOLYSIS OF
Streptococcus pneumoniae
Piñas, Germán; Paulo Cortes; Andrea Albarracin Orio y José Echenique. Dpto. Bioq. Clínica Clínica, CIBICI-
CONICET, Fac. Cs Químicas.UNC. Ciudad Universitaria, Córdoba.
Email: [email protected]
MI-P23
MOLECULAR DIFFERENCES BETWEEN Bordetella pertussis CIRCULATING STRAINS AND THE VACCINE
STRAIN USED FOR VACCINE PRODUCTION: IMPLICATION IN THE EFFICIENCY OF PERTUSSIS VACCINE
INDUCED IMMUNITY AGAINST CURRENTLY CIRCULATING B. pertussis ISOLATES
Gaillard María, Sisti Federico, Fernandez Julieta, Bottero Daniela, Graieb Augusto, Fingermann Matías and Hozbor
Daniela. Instituto de Bioquímica y Biología Molecular (IBBM). FCE-UNLP. Calles 47 y 115. 1900. La Plata.
[email protected]
MI-P24
DETECTION AND IDENTIFICATION OF Proteus mirabilis OUTER MEMBRANE PROTEINS EXPRESSED IN
VIVO IN RAT INTRAPERITONEAL DIFUSSION CHAMBERS.
D’Alessandro, Bruno; Lima, Analía, Piccini, Claudia and Zunino, Pablo. Laboratorio de Microbiología. IIBCE. Av. Italia
3318, Montevideo, Uruguay. CP 11600. [email protected].
MI-P25
ANALYSIS OF THE ENDOGENOUS EXPRESSION OF Pseudomonas aeruginosa MutS, USING A HIS-TAG.
Mariani, M. E.; Jacquelin, D. K.; Argaraña C. E. and Barra J. L.
Depto. de Química Biológica, CIQUIBIC, Fac. Cs. Quím., UNC. Ciudad Universitaria, 5000 - Córdoba, Argentina.
E-mail: [email protected]
MI-P26
HIGH FREQUENCY OF QUORUM SENSING DEFICIENT (lasR) MUTANTS EMERGE FROM A Pseudomonas
aeruginosa mutS STRAIN.
Lujan A.M., Moyano A.J., Segura I., Argaraña C.E. and Smania A.M. CIQUIBIC-CONICET, Fac. Cs. Químicas, UNC,
CORDOBA, ARGENTINA. E-MAIL: [email protected]
MI-P27
HYPERMUTABILITY DUE TO mutS DEFICIENCY INCREASES THE FREQUENCY BUT REDUCES THE
SPECTRUM OF mucA MUTATIONS LEADING TO MUCOIDY IN Pseudomonas aeruginosa.
Moyano A.J., Lujan A.M., Argaraña C.E. and Smania A.M.
CIQUIBIC-CONICET, Fac. Cs. Químicas, UNC, CORDOBA, ARGENTINA. E-MAIL:[email protected]
MI-P28
REDUCTION OF THE MUTATION RATE AFTER OVEREXPRESSION OF MutS OR MutL IN Escherichia coli.
Jacquelín, D. K.; Argaraña C. E. and Barra J. L.
Depto. de Química Biológica, CIQUIBIC, Fac. Cs. Quím., UNC. Ciudad Universitaria, 5000 - Córdoba, Argentina.
E-mail: [email protected].
MI-P29
ANTIOXIDANT RESPONSE OF Xanthomonas axonopodis PV. CITRI TO HYDROGEN PEROXIDE
Tondo, M. Laura, Ottado, Jorgelina and Orellano, Elena G.
IBR-CONICET, UNR. Suipacha 531 S2002LRK, Rosario. Argentina. E-mail: [email protected]
MI-P30
XANTHAN GUM ARE INVOLVED IN BIOFILM FORMATION AND PATHOGENICITY IN Xanthomonas
axonopodis pv. citri (Xac)-citrus limón INTERACTION.
Rigano, Luciano1; Siciliano, Florencia3; Sendin, Lorena2; Angulo Biazutti, Ana2; Torres, Pablo1; Marano, María Rosa3;
Castagnaro, Atilio2; Dankert, Marcelo1 and Vojnov, Adrian1.1-IIBBA-FI Leloir; 2-EEAOC-Tucumán; 3-IBR-Rosario, Sta
Fé. [email protected]

MI-P31
EXPRESSION OF AN Agrobacterium tumefaciens C58 OPERON UNDER SALT STRESS CONDITIONS
Torres, Leticia L. and Salerno, Graciela L. Centro de Investigaciones Biológicas (FIBA), Mar del Plata, Argentina. E-
mail: [email protected]

MI-P32
NITRIC OXIDE PRODUCTION BY Azospirillum brasilense UNDER OXIC CONDITIONS
Molina Favero, Celeste1; Creus, Cecilia1., Simontacchi, Marcela2; Puntarulo, Susana2; Lamattina, Lorenzo3
1Unidad Integrada Balcarce FCA UNMdP – EEA INTA. 2 FFyB UBA. 3IIB, FCEyN, UNMdP.
[email protected]
MI-P33
STRESS TOLERANCE, BIOCONTROL AND SURVIVAL IN WHEAT RHIZOSPHERE OF Pseudomonas spp. SF
10B
Magris, Soledad, Fischer, Sonia and Mori, Gladys.
Universidad Nacional de Río Cuarto, Córdoba, Argentina.
e-mail: [email protected]
MI-P34
EFFECT OF OXYGEN AND LIGHT ON THE EXPRESSION OF THE puf OPERON IN PHOTOSYNTHETIC
BRADYRHIZOBIA
Montecchia, Marcela S.; Pucheu, Norma L.; Kerber, Norma L.; García, Augusto F. IBYF-CONICET, Cátedra de
Microbiología Agrícola, Facultad de Agronomía, UBA.
E-mail: [email protected]

MI-P35
GLUTATHIONE BIOSYNTHESIS, IN Rhizobium tropici, IS NECESSARY FOR EFFICIENT SYMBIOSIS WITH
THE LEGUME Phaseoulus vulgaris.
Cecilia I. Muglia, Glenda Comai and O. Mario Aguilar. Instituto de Bioquímica y Biología Molecular, Facultad de
Ciencias Exactas, UNLP. 47 y 115 s/n, 1900, La Plata, Argentina. cmuglia@ biol.unlp.edu.ar.
MI-P36
ISOLATION AND CHARACTERIZATION OF SALT SENSITIVE Tn5-MUTANTS OF Ochrobactrum sp.11a.
Príncipe, Analía; Jofré, Edgardo and Mori, Gladys.
Facultad de Ciencias Exactas, Fco.-Qcas. y Naturales, UNRC. 5800-Río Cuarto. E-mail: [email protected].
MI-P37
EVALUATION OF INDIGENOUS PGPR BACTERIA FOR THE FORMULATION OF A MULTIPLE STRAIN
SOYBEAN INOCULANT.
León, Mariana; Yaryura, Pablo M.; Montecchia, Marcela S.; Kerber, Norma L.; Pucheu, Norma L.; García, Augusto F.
IBYF-CONICET, Cátedra de Microbiología Agrícola-FAUBA Av San Martín 4453 (C1417DSE), [email protected]
MI-P38
PGPR ABILITY AND INDUCTION OF DEFENSIVE ENZYMES IN TOMATO BY RHIZOBACTERIAS
Fischer, Sonia1, Ramos Beatriz2, Gutierrez, Javier2 and Mori, Gladys1.
1Universidad Nacional de Río Cuarto, Argentina. 2Universidad San Pablo CEU, España. E-
mail:[email protected]

MI-P39
IDENTIFICATION AND CHARACTERIZATION OF A SUCROSE PHOSPHATE SYNTHASE FROM
Synechococcus sp. PCC 7942
Martínez-Noël, Giselle; Pontis, Horacio and Salerno, Graciela
Fundación para Investigaciones Biológicas Aplicadas (FIBA), 7600 Mar del Plata, Argentina. E-mail:
[email protected]
MI-P40
CAROTENOIDS CONTENT AND SUNLIGHT SUSCEPIBILITY IN Rhodococcus sp.
Oppezzo, Oscar; Costa, Cristina; Pizarro, Ramón.
C.N.E.A. Departamento de Radiobiología. Av General Paz 1499 (1650) General San Martín (Bs. As.)
[email protected]

MI-P41
QUANTIFICATION, CHARACTERIZATION AND PROBIOTIC POTENTIAL OF CANINE VAGINAL LACTIC ACID
BACTERIA.
Fraga,Martín1; Perelmuter, Karen1; Delucchi, Luis2; Cidade, Esther2 and Zunino, Pablo1.
1- Lab. de Microbiología, IIBCE, Av Italia 3318, Montevideo, Uruguay. 2- Facultad de Veterinaria, Lasplaces 1550,
Universidad de la República, Montevideo, Uruguay. [email protected]
MI-P42
CodY AND DtpT ARE INVOLVED IN THE MODULATION OF prtP DURING OSMOTIC STRESS IN Lactobacillus
casei.
Mariana Piuri, Mariana C. Allievi, Carmen Sanchez Rivas and Sandra M. Ruzal
Dpto. Química Biológica, FCEN-UBA
E-mail: [email protected]
MI-P43
COMPARATIVE STUDIES OF DIFFERENT PROMOTER REGIONS OF Lactococcus lactis INTENDED FOR THE
EXPRESSION OF HETEROLOGOUS PROTEINS
Marelli, Belkis; Guillermo, Repizo; Diego de Mendoza; Christian Magni
Dpto. de Microbiología. IBR-CONICET, Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de
Rosario, Suipacha 531, Rosario, Argentina. E-mail: [email protected]
MI-P44
ON THE MECHANISM OF TELLURITE TOXICITY IN BACTERIA
Fuentes, Derie; Pérez, José Manuel; Calderón, Iván; Castro, Miguel; Arenas, Felipe; Saavedra, Claudia* and
Vásquez Claudio.
Facultad de Química y Biología, Universidad de Santiago de Chile; * Facultad de Ciencias de la Salud, Universidad
Andrés Bello, Chile.E-mail: [email protected]
MI-P45
CONTRIBUTION OF THE zwf AND fpr GENES TO OXIDATIVE STRESS TOLERANCE IN Escherichia coli.
Giró, Mariana; Carrillo, Néstor and Krapp, Adriana R.
Instituto de Biología Molecular y Celular de Rosario (IBR), Facultad de Ciencias Bioquímicas y Farmacéuticas,
Universidad Nacional de Rosario, Suipacha 531, S2002LRK Rosario. E-mail: [email protected].
MI-P46
TOXICITY FOR HYDROPEOXIDE IN Escherichia coli WITH DIFFERENTIAL EXPRESSION OF THE NADH
DEHYDROGENASE-2
Volentini, Sabrina I., Farías, Ricardo N., Rapisarda, Viviana A., and Rodríguez-Montelongo, Luisa
Dpto. Bioq. de la Nutrición (INSIBIO) e Inst. de Qca. Biológica “Dr B. Bloj” (CONICET-UNT). Chacabuco 461, S. M.
de Tucumán. E-mail: [email protected]
MI-P47
EFFECTORS THAT MODIFY THE EXPRESSION OF NADH DEHYDROGENASE-2 GENE: INVOLVEMENT IN
COPPER RESISTANCE IN Escherichia coli.
Schurig Lici A., Volentini Sabrina I., Rodríguez Montelongo Luisa, Rapisarda Viviana A.
Dpto. Bioq. de la Nutrición, INSIBIO (CONICET-UNT) e Inst. de Qca. Biológica “Dr. Bloj”, Fac. de Bioq., Qca. y Farm.
(UNT). Chacabuco 461, Tuc., Argentina. E-mail: [email protected]
MI-P48
PRODUCTION AND CHARACTERIZATION OF A PIGMENT SYNTHESIZED BY Escherichia coli CELLS
EXPOSED TO HIGH COPPER CONCENTRATIONS
Rintoul, María R.; Scaravaglio, Omar R.; Cerioni,Luciana; Volentini, Sabrina I.; Rapisarda, Viviana A. and Rodríguez-
Montelongo, Luisa.
Dpto. Bioq. de la Nutrición (INSIBIO) e Inst. de Qca. Biológica “Dr B. Bloj” (CONICET-UNT). Chacabuco 461, S. M.
de Tucumán. E-mail: [email protected].
MI-P49
SEARCH OF CHROMOSOMAL GENES INVOLVED IN MICROCIN J25 PRODUCTION
Pomares M.Fernanda, Vincent Paula A., Farías Ricardo N, Salomón Raúl A.
Dep. de Bioquímica de la Nutrición. INSIBIO (UNT-CONICET. Inst. de Química Biológica. Fac. de Bioqca. Qca. y
Fcia. UNT-4000. Tucumán E-mail: [email protected]
MI-P50
THE PLASMID pTUC200, ENCODING MICROCIN J25, HAVE UNUSUAL PROPERTIES
Vallejos Alicia C., Delgado Mónica A,. Vincent Paula A., Salomón Raúl A. Dep. de Bioquímica de la Nutrición.
INSIBIO (UNT-CONICET) Tucumán E-mail: [email protected]
MI-P51
MICROCIN J25 ACTIVITY IN A MURINE SYSTEMIC INFECTION MODEL
López, Fabián E, Zenoff, Ana M., Vincent Paula A., Salomón Raúl A., Farías Ricardo N.
Dep. de Bqca de la Nutrición. INSIBIO (UNT-CONICET). Inst. de Qca. Biológica-UNT- Tucumán E-
mail:[email protected]
MI-P52
THE yojI GENE, ENCODING A MccJ25 PUMP, IS POSITIVELY REGULATED BY THE LEUCINE-RESPONSIVE
REGULATORY PROTEIN (Lrp)
Socías S. Benjamín, Vincent Paula A., Salomón Raúl A.
Dep. de Bioquímica de la Nutrición. INSIBIO (UNT-CONICET) -4000. Tucumán E-mail: [email protected]
MI-P53
MULTIDRUG RESISTANCE PUMP AcrAB-TolC IS REQUIRED FOR HIGH-LEVEL TetA-MEDIATED
TETRACYCLINE RESISTANCE IN Escherichia coli
de Cristobal Ricardo E., Vincent Paula A., Salomón Raúl A.
Dep. de Bqca de la Nutrición. INSIBIO (UNT-CONICET). Inst. de Qca. Biológica-UNT- Tucumán E-mail:
[email protected]
MI-P54
THE ANTIBIOTIC CIPROFLOXACIN PRODUCES SUPEROXIDE IN Escherichia coli EVEN IN THE ABSENCE OF
IRRADIATION.
Haurat, M. Florencia and Krapp, Adriana R
Area Biología Molecular. Instituto de Biologia Molecular y Celular de Rosario-CONICET, Fac. de Cs. Bioquímicas y
Farmacéuticas. Universidad Nacional de Rosario. Suipacha 531, 2000- Rosario, Argentina. E-mail:
[email protected]

MI-P55
HIGHER CYTOTOXICITY OF METHICILLIN-RESISTANT Staphylococcus aureus (MRSA) EPIDEMIC CLONES
RELATED TO THE PRODUCTION OF α-TOXIN
Sola Claudia, Saka Héctor A. and Bocco José Luis.
Departamento de Bioq. Clínica, Facultad de Ciencias Químicas, UNC, Córdoba, Argentina. mail:
[email protected]
MI-P56
HIGH-LEVEL RESISTANCE TO MECILLINAM PRODUCED BY INACTIVATION OF SOLUBLE LYTIC
TRANSGLYCOSYLASE IN Salmonella enterica SEROVAR TYPHIMURIUM
Cristina S. Costa and Dora N. Antón
Departamento de Radiobiología, Comisión Nacional de Energía Atómica, Avda. General Paz 1499, 1650 San Martín,
Argentina
E-mail: [email protected]
MI-P57
HSP70 CYTOSOLIC CHAPERONES INVOLVED IN THE SECRETION OF METALLO-β-LACTAMASES IN GRAM-
NEGATIVE BACTERIA
Morán Barrio, J.; Limansky, A. S. and Viale, A. M.
IBR (CONICET), FCByF, UNR, Rosario, Argentina. [email protected]
MI-P58
CarO, AN OUTER MEMBRANE PROTEIN OF Acinetobacter baumannii INVOLVED IN CARBAPENEM
RESISTANCE, IS A PORIN FOR BASIC AMINO ACIDS.
Mussi M. Alejandra, Relling Verónica, Limansky Adriana S. and Viale Alejandro M. IBR (CONICET), Departamento
de Microbiología, Fac. Ciencias Bioquímicas y Farm, UNR. Rosario. Argentina. e-mail: [email protected]
MI-P59
EXPOSURE TO SUBINHIBITORY CONCENTRATIONS OF PENICILIN INCREASES OPTOCHIN RESISTANT
PHENOTIPE IN Streptococcus pneumoniae
Cortes, P; G. Piñas; A. Albarracín, J. Echenique.
CIBICI–CONICET, Fac. Cs. Químicas, UNC, Córdoba. E-mail: [email protected]
MI-P60
INVOLMENT OF pbpE IN THE OSMOADAPTATION OF Bacillus subtilis
Maria Mercedes Palomino, Carmen Sanchez Rivas and Sandra M. Ruzal
Dpto. Química Biológica, FCEN-UBA
E-mail: [email protected]
MI-P61
EXPRESIÓN OF SURFACE LAYER PROTEINS OF Bacillus sphaericus DURING OSMOTIC STRESS
MarianoPrado Acosta, , Carmen Sanchez Rivas and Sandra M. Ruzal
Dpto. Química Biológica, FCEN-UBA
mail:[email protected]
MI-P62
QUORUM SENSING, COMMUNITY FORMATIONS AND THE IDENTITY OF Bacillus subtilis.
Lombardía Esteban., Pretto Luciana, Rovetto Adrián and Grau Roberto. Departamento de Microbiología. IBR –
CONICET, Facultad de Ciencias Bioquímicas y Farmacéuticas. Rosario
Email: [email protected]
MI-P63
RELEVANCE OF TRANSCRIPTION FACTOR σB DURING GERNINATION AND POST-GEMINATION STRESS
ADAPTATION IN Bacillus subtilis.
Anibal Goñi, Marcelo Méndez, Lelia Orsaria, and Roberto Grau
Facultad de Cs. Bioquímicas y Farmacéuticas Dpto. de Microbiología e IBR – CONICET – Rosario.
[email protected].
MI-P64
THERMAL INACTIVATION ANALYSIS OF EXTRACELLULAR PROTEASES OBTAINED FROM A SUB-
ANTARCTIC Colwellia ISOLATE
Nievas, Marina L., Sequeiros, Cynthia and Olivera, Nelda L.
Centro Nacional Patagónico, CONICET, Bv. Brown s/nº, U9120ACF, Puerto Madryn, Argentina. E-mail:
[email protected]
MI-P65
METABOLIC REGULATION AND SECONDARY REACTIONS OF E. coli MALIC ENZYMES
Bologna, Federico P.; Andreo, Carlos S. and Drincovich, María F. CEFOBI - Fac. de Cs. Bioq. y Farm. UNR.
Suipacha 531. 2000. Rosario. Argentina. e-mail: [email protected]
MI-P66
ASSOCIATION BETWEEN MOBILE GENETIC ELEMENTS AND phb GENES IN Pseudomonas extremoaustralis
Ayub, ND, Pettinari MJ, Méndez, BS and NI López* Dpto. de Química Biológica, Facultad de Ciencias Exactas y
Naturales, UBA.* [email protected]
MI-P67
CLONING OF phnA1-LIKE GENES OF POLYCYCLIC AROMATIC HYDROCARBON-DEGRADING BACTERIA
FROM MARINE SEDIMENTS
Guerrero, Leandro D.1; Di Marzio, Walter D. 2 and Dionisi, Hebe M. 1
1Centro Nacional Patagónico (CENPAT-CONICET), Pto. Madryn, Chubut, Argentina. E-mail:
[email protected]; 2Programa de Investigación en Ecotoxicología, Departamento de Ciencias Básicas,
Universidad Nacional de Luján -CONICET, Luján, Argentina.
MI-P68
THE BACTERIAL SMTR GII INTRON RECONGNIZES THE attC GENE CASSETTE ATTACHMENT SITE.
Quiroga, Cecilia; Roy, Paul H. and Centrón Daniela. Depto. de Microbiología, F. de Medicina, UBA. Paraguay 2155,
Piso 12, CABA, Argentina. Centre de Recherche en Infectiologie-CHUL, Ste. Foy. Quebec, Canada. E-mail:
[email protected]
MI-P69
PREDOMINANCE OF INCN PLASMIDS IN TOTAL COMMUNITY DNA ISOLATED FROM HIGH ALTITUDE
ENVIRONMENTS IN THE ARGENTINEAN ANDEAN WETLANDS‡
Ana Carolina Colin, and Maria Eugenia Farías
PROIMI Planta Piloto de Procesos Industriales Microbiológicos Av. Belgrano y Pje. Caseros -(4000) - Tucumán,
Argentine. CONICET Consejo Nacional de Investigaciones Científicas y TécnicasE-mail: [email protected]
MI-P70
BACTERIA ISOLATED FROM PRISTINE HIGH ALTITUDE ENVIRONMENTS IN THE ARGENTINEAN ANDEAN
WETLANDS: PLASMID PROFILE AND MULTIPLE ANTIBIOTIC RESISTANCE
J.R.Dib, M.A. Martínez, Faustino Siñeriz and M.E.Farías. PROIMI-CONICET. Av. Belgrano y Pje. Caseros -(4000) -
Tucumán, Argentina.
E-mail: [email protected]
MI-P71
RESPONSE OF Acinetobacter jonhsonii TO ULTRAVIOLET- B RADIATION
María Verónica Fernández Zenoff, Julián Rafael Dib and María Eugenia Farias. PROIMI-CONICET Planta Piloto de
Procesos Industriales Microbiológicos Av. Belgrano y Pje. Caseros - (4000) - Tucumán, Argentina. E-mail mefarias@
proimi.org.ar.
MI-P72
PRELIMINARY STUDIES OF NAPHTHALENE-DEGRADING BACTERIA ISOLATED FROM MUELLE STORNI
SEDIMENTS
Riva Mercadal, Juan P.1, Delgado, Osvaldo1, Dionisi, Hebe2 and Ferrero, Marcela1
1PROIMI-CONICET (Planta Piloto de Procesos Industriales Microbiológicos) 2CENPAT-CONICET (Centro Nacional
Patagónico)
E-mail adress: [email protected]
MI-P73
CALCULATION OF MAXIMAL GROWTH RATES OF E. coli IN MIXTURES OF SUGARS, PERFORMING A FLUX
BALANCE ANALYSIS OF ITS METABOLIC NETWORK
Ponce de León, Miguel 1; Berger, Pablo 1; Cancela, Héctor 2 and Acerenza, Luis 1
1Facultad de Ciencias and 2Facultad de Ingeniería, Universidad de la República, Montevideo, Uruguay. E-mail: [email protected]
MI-P74
STREPTOMYCES SP BIODEGRADATION ACTIVITY ON PROPERTIES OF POLYHYDROXYALKANOATES.
Miyazaki, Silvia S. (2)(3);Yashchuk ,Oxana (1)(3);Hermida,Elida(1)(3) and Povolo, Francisco (1)(3)
(1) U.A. Materiales – Comisión de Energía Atómica (CNEA), (2) Área Agroalimentos - Fac. Agronomía - UBA, Av.
San Martín 4453, 1417 Buenos Aires, Argentina. (3) CONICET. E-mail: [email protected]

MI-P75
GENE ADAPTATION TO EXTREME ENVIRONMENTS
Pol Marlaire, Valeria Rodríguez, Néstor Kerner. Lab. de Investigaciones Científicas, Fundación Pablo Cassará,
Saladillo 2452 2°P, Bs. As., Argentina. [email protected].

MI-P76
STUDY OF CHEMOTAXIS IN HALOARCHAEA.
Herrera Seitz, Karina1; Koch, Matthias2; Oesterhelt, Dieter.2 and De Castro, Rosana.1
1Instituto de Investigaciones Biológicas, FCEyN-UNMDP, Funes 3250, 4to. Nivel. CC 1245, 7600, Mar del Plata,
Argentina.2Max- Planck Institute for Biochemistry, Martinsried, Germany.E-mail: [email protected]
MI-P77
STRUCTURAL HOMOLOGY WITH UBIQUITIN IN THE HALOALKALIPHILIC ARCHAEA Natrialba magadii.
Nercessian, Débora*(1); Marino-Buslje, Cristina*(2); De Castro, Rosana E.(1) and Conde, Rubén D. (1).
(1)Instituto de Investigaciones Biológicas, Facultad de Ciencias Exactas y Naturales,Universidad Nacional de Mar del Plata, CC 1245, 7600 Mar del Plata. (2) Instituto de Química y Fisicoquímica Biológica, Facultad de Farmacia y Bioquímica, Universidad Nacional de
Buenos Aires.
*These authors had similar contribution to the paper.
E-mail: [email protected]
MI-P78
IDENTIFICATION AND CHARACTERIZATION OF UBIQUITIN-LIKE PROTEINS IN HALOARCHAEA
Ordóñez, Maria Victoria; Nercessian, Debora; Conde, Rubén Danilo.
Instituto de Investigaciones Biológicas, FCEyN, UNMdP. Funes 3250 CC 1245. 7600. Mar del Plata. E-mail:
[email protected].
MI-P79
CHARACTERIZATION OF THE PROTEOLYTIC SYSTEMS EXPRESSED IN THE STATIONARY GROWTH
PHASE IN THE HALOALKALIPHILIC ARCHAEON Natrialba magadii
Sastre Diego E. and De Castro Rosana E.
Instituto de Investigaciones Biológicas, UNMdP, CC 1245. Mar del Plata (7600), Argentina. E-mail:
[email protected]

MI-P80
ACTIVITY AND STABILITY OF AN EXTRACELLULAR PROTEASE FROM THE HALOALKALIPHILIC
ARCHAEON Natrialba magadii IN ORGANIC SOLVENTS
Ruiz DM, De Castro RE.
IIB-FCEyN-UNMdP. CC1245, Mar del Plata 7600. E-mail: [email protected]
MI-P81
PICOEUKARYOTIC DIVERSITY IN ARGENTINEAN SEA COSTAL SITE STUDIED BY MOLECULAR
APPROACHES.
Cumino, Andrea1; Covacevich, Fernanda1; Silva, Ricardo 2; Negri, Rubén2 and Salerno, Graciela 1.
[1] Centro de Investigaciones Biológicas, FIBA, [2] INIDEP, Mar del Plata, Argentina. [email protected].
MI-P82
IS OXIDATIVE STRESS A COMMON MECHANISM OF STRESS AND STRESS RESPONSE IN BAKER'S
YEAST?
1Kronberg, M. Florencia and 1,2Galvagno, Miguel A. 1IIB-CONICET-UNSAM, 1650, San Martín; and 2Laboratorio de Microbiología Industrial, FI-UBA, CONICET, 1428,
Buenos Aires, Argentina. E-mail: [email protected]
MI-P83
CAROTENOID PIGMENTS ENHANCE PHOTOPROTECTION IN THE YEAST Rhodotorula mucilaginosa.
Moliné, Martín1; Libkind, Diego1; Diéguez, María del Carmen2 and van Broock, María Rosa1.
1. Laboratorio de Microbiología Aplicada y Biotecnología. 2. Laboratorio de Fotobiología. CRUB, Universidad
Nacional del Comahue, Bariloche, Argentina. E-mail: [email protected]

MI-P84
SUBSTRATE AFFINITY PATTERNS SHOWING BY LIPASE AND ESTERASE ACTIVITIES FROM Aspergillus
niger MYA 135
Romero, Cintia M; Pera, Licia M.; Rodriguez, Emilio and Baigorí, Mario D.
PROIMI-CONICET Av. Belgrano y Pje. Caseros, 4000 Tucumán. Tel: 4344888, e-mail: [email protected]

MI-P85
EFFECT OF CULTURE CONDITIONS ON BRANCHING DEGREE IN Aspergillus niger MYA 135
Pera, Licia M. and Baigorí, Mario D.
PROIMI-CONICET Av. Belgrano y Pje. Caseros, 4000 Tucumán. Tel: 4344888, e-mail: [email protected]

MI-P86
EXPRESSION OF CAPSID POLYPEPTIDE cDNA OF THE BcV1 VIRUS FROM Botrytis cinerea CCg378 IN
Escherichia coli AND Saccharomyces cerevisiae.
Cartagena, Julio R; Cottet, Luis E; Morales, Angélica L and Castillo, Antonio R.
Laboratorio de Virología de Hongos, Facultad de Química y Biología, Universidad de Santiago de Chile.
Email: [email protected]

MI-P87
AMPLIFICATION BY RT-PCR OF CYTOCHROME P-450 GENE SEGMENTS FROM ALKANE-GROWN Beauveria
bassiana.
Pedrini, Nicolás and Juárez, M. Patricia.
Instituto de Investigaciones Bioquímicas de La Plata (CONICET-UNLP), Facultad de Ciencias Médicas, cal es 60 y
120, La Plata, 1900, Argentina. e-mail: [email protected]
MI-P88
CHARACTERIZATION OF THE ACYL-COA OXIDASE IN Beauveria bassiana.
Alconada, Teresa and Juárez, M. Patricia.
Instituto de Investigaciones Bioquímicas de La Plata (CONICET-UNLP), Facultad de Ciencias Médicas, cal es 60 y
120 (1900) La
Plata, Argentina e-mail: [email protected]
MI-P89
THIOREDOXIN REDUCTASE FROM Entamoeba histolytica HK9. MOLECULAR CLONING AND FUNCTIONAL
CHARACTERIZATION.
Arias, Diego; Gutierrez, César; Guerrero, Sergio A. and Iglesias, Alberto A.
UNL-CONICET, Facultad de Bioquímica y Cs. Biológicas.3000-Santa Fe. E-mail: [email protected]

MI-P90
EFFECT OF POLYAMINE BIOSYNTHESIS INHIBITORS ON GROWTH AND PATHOGENESIS OF Ustilago
maydis
Gárriz, A*∆; Gonzalez, ME*∆; Marina, M*; Ruiz-Herrera, J†; Ruiz, OA*‡.
*IIB-INTECh (UNSAM-CONICET), Chascomús, Pcia. Bs. As.
† CINVESTAV-Irapuato, México. ‡[email protected]
∆These authors contributed equally to this work.
MI-P91
METALLOCARBOXYPEPTIDASES (MCPs) OF Trypanosoma cruzi: EXPRESSION AND CHARACTERIZATION.
Niemirowicz, Gabriela; Parussini, Fabiola; Agüero, Fernán and Cazzulo, Juan José.
IIB-INTECH, UNSAM-CONICET. Av. Gral. Paz s/n, Edificio 24 (1650) San Martín, Buenos Aires, Argentina.
E-mail: [email protected]
MI-P92
IDENTIFICATION OF QUINONE OXIDOREDUCTASE ACTIVITIES PRESENT IN Trypanosoma cruzi
Bayona1, Julio; Maugeri1,Dante; Agüero1, Fernan; Hellman2, Ulf;Podesta3,Dolores; Cazzulo1,Juan J. and Cannata3,
Joaquin
1IIB,INTECH, UNSAM-CONICET. 2Ludwig Institute for Cancer Research, Uppsala Sweden.3CIBIERG, Facultad de
Medicina,UBA-CONICET.E-mail: [email protected]
MI-P93
HISTONE ACETYLATION IN Trypanosoma cruzi.
Meyer, Cristian G.; Torres, Hector N.; Flawiá, Mirtha M.; Alonso, Guil ermo D.
Instituto de Investigaciones en Ingeniería Genética y Biología Molecular (INGEBI CONICET-UBA)
[email protected]
MI-P94
POLY(ADP-RIBOSYL)ATION IN TRYPANOSOMATIDS
Baltanás, Rodrigo; Alonso, Guillermo D.; Torres, Héctor N., Flawiá, Mirtha M., Fernández Villamil, Silvia H.
INGEBI-CONICET-UBA. Argentina. e-mail:[email protected]
MI-P95
THE TRANSKETOLASE (TKT) FROM Trypanosoma cruzi. CLONING, EXPRESSION AND
CHARACTERIZATION.
Beluardi, Paula and Cazzulo Juan J.
IIB-INTECH, UNSAM-CONICET, Colectora Av. Gral Paz 5445 (1650) San Martín, pcia. Buenos Aires, Argentina.
e-mail: [email protected].
MI-P96
TRANSIENT EXPRESSION OF THE NS5A PROTEIN OF HEPATITIS C VIRUS (HCV) IN HeLa CELLS.
Montenegro, Graciela; Fernández Gamba, Ágata; Rivero, Cintia; Minassian, María; Ruiz, Vanesa; Cuestas, María;
Trinks Julieta; Mathet, Verónica and Oubiña, José. Depto. Microbiología. Fac. de Medicina. UBA, Argentina. E-mail:
[email protected]
MI-P97
GB VIRUS C (GBV-C) GENOMIC RNA IS PRESENT IN SPECIFIC LYMPHOCYTIC CELLS IN VIVO.
Ruiz, Vanesa; Giordano, Mirta; Mathet, Verónica; Rivero, Cintia; Minassian, María; Cuestas, María; Fleming, Ximena;
Trinks Julieta; Oubiña, José. Depto. Microbiología Fac. de Medicina. UBA, Argentina. E-mail:
[email protected]

MI-P98
DEVELOPMENT OF MICROBIAL BIOSENSORS FOR BOD AND OTHER WATER-QUALITY RELATED
PARAMETERS.
Santiago Chiappini, Diego Kormes, Alberto A. Viale and Eduardo Cortón, Grupo de Biosensores y Bioanalisis,
Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, UBA, Ciudad Universitaria, (1428)
Buenos Aires, Argentina. Email: [email protected]

MI-P99
IDENTIFICATION OF Streptococcus sp AND Enterococcus SPECIES ISOLATED FROM BOVINE MASTITIS IN
ARGENTINA BY RFLP
Reinoso Elina, Lasagno Mirta, Odierno Liliana
Dpto Microbiología e Inmunología. Facultad de Cs. Exactas. Universidad Nacional de Río Cuarto.
E-mail: [email protected]
MI-P100
REGULATION OF CITRATE METABOLISM IN Enterococcus faecalis ATCC29212
Blancato, Víctor S., Repizo Guillermo and Magni, Christian. Dpto. de Microbiología, FCByF, U.N.R., IBR-CONICET
Suipacha 531, Rosario, Argentina . E-mail: [email protected]

Source: http://www.saib.org.ar/paginas/2005/pdf/Poster%20Sections/MICROBIOLOGY.pdf