predatory bacterium

Edge evidence

• predatory bacterium enables bacteriolytic killing RO:0002327

  Predatory bacteria invade and lyse prey cells for nutrients.

  • DOI:10.1146/annurev.micro.091208.073346 Sockett describes Bdellovibrio invasion and digestion of prey bacteria.
• bacteriolytic killing consumes prey bacterium biolink:consumes

  Killed prey cells provide nutrients to the predator.

  • DOI:10.1111/1462-2920.13171 Pérez et al. survey predatory bacteria and their prey-killing strategies.
• prey attachment/invasion complex (portal) seals prey peptidoglycan entry pore / bdelloplast pore

  A flexible portal lines the prey peptidoglycan hole and seals the entry pore to form a bdelloplast.

  • DOI:10.1038/s41564-023-01401-2 Cryo-ET: a flexible portal lines the hole during entry and the entry pore is sealed to form a bdelloplast.
• prey cell-wall modification enzymes causes bdelloplast biolink:causes

  Predator modification of the prey cell wall rounds the killed prey into a bdelloplast.

  • DOI:10.1038/s41467-024-47412-3 During invasion the predator modifies the prey cell wall, rounding the killed prey into a bdelloplast.
• bdelloplast provides environment for intraperiplasmic growth / predator replication

  The sealed bdelloplast houses a live predator that grows and replicates inside the prey periplasm.

  • DOI:10.1038/s41564-023-01401-2 The sealed bdelloplast contains a live predator that grows and replicates inside the prey periplasm.
• exit-associated lytic activity causes prey cell-wall lysis and progeny release biolink:causes

  After septation, lytic activity breaks the prey cell wall so progeny lyse and exit.

  • DOI:10.1038/s41564-023-01401-2 After synchronous septation, progeny lyse the prey cell wall and exit.