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Resumen completo sobre BACILOS G + NO ESPORULADOS- BACTERIOLOGÍA. $7.49   Add to cart

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Resumen completo sobre BACILOS G + NO ESPORULADOS- BACTERIOLOGÍA.

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Resumen completo sobre BACILOS G + NO ESPORULADOS- BACTERIOLOGÍA. Patologías- diagnóstico, etc.

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  • July 10, 2021
  • 25
  • 2019/2020
  • Class notes
  • Josefina ramirez
  • All classes
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FACULTAD DE CIENCIAS MÉDICAS.
C ÁT E D R A D E B A C T E R I O L O G Í A


Corynebacterium diphtheriae: difteria.
Mycobacterium tuberculosis Mycobacterium leprae
Práctica : Bacilo Diftérico Tinción de Albert, Bacilo de Koch.

, CORINEBACTERIAS
Corynebacterium diphtheriae 1
Pequeños, finos, pleomorfos

Bacilos Grampositivos, rectos o ligeramente curveados


Diámetro de 0.5 a 1 μm y varios micrómetros de longitud


No móviles, no encapsuladas, no esporuladas


Aerobios



❑ Saprófitas: C. pseudodiphteriticum (difteroides) Biotipos
Gravis
❑ Patógenas: Corynebacterium diphtheriae y Corynebacterium ulcerans Mitis
(toxigénica) Intermedius

, Toxina diftérica 2
Dispersa en sangre
Exotoxina: principal Se produce en el lugar
causa signos
factor de virulencia de la infección
sistémicos




Mediante un Se introduce en las El gen tox que codifica
bacteriófago cepas de C. la exotoxina
lisogénico diphtheriae



Escisión proteolítica de la secuencia adelantada de la proteína tox durante la
secreción desde la pared bacteriana


Escisión de la molécula de la toxina en dos polipéptidos (A y B)

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