The action of predatorily specialized, PBP4-like peptidoglycan-endopeptidase enzymes of Bdellovibrio modifies and rounds the prey cell wall. This prevents wasteful double invasion of already occupied prey bacteria by subsequent Bdellovibrio. Electron microscopy shows two predatory Bdellovibrio bacteria outside of two rounded E. coli prey "bdelloplasts" previously invaded by the crescent-shaped Bdellovibrio seen within. Cells were negatively strained with phosphotungstic acid (see Lerner et al., doi:10.1371/journal.ppat.1002524).
Image Credit: Thomas Lerner, University of Nottingham and Prefectural University of Hiroshima
Opinion
The Role of Animal Models for Research on Severe Malaria
PLOS Pathogens: published February 2, 2012 | https://doi.org/10.1371/journal.ppat.1002401
Pearls
Population Genetic Analyses Reveal the African Origin and Strain Variation of Cryptococcus neoformans var. grubii
PLOS Pathogens: published February 23, 2012 | https://doi.org/10.1371/journal.ppat.1002495
Five Questions about Viral Trafficking in Neurons
PLOS Pathogens: published February 16, 2012 | https://doi.org/10.1371/journal.ppat.1002472
How Do Microbial Pathogens Make CENs?
PLOS Pathogens: published February 9, 2012 | https://doi.org/10.1371/journal.ppat.1002463
Selecting an Invertebrate Model Host for the Study of Fungal Pathogenesis
PLOS Pathogens: published February 2, 2012 | https://doi.org/10.1371/journal.ppat.1002451
Review
Tuberculosis and HIV Co-Infection
PLOS Pathogens: published February 16, 2012 | https://doi.org/10.1371/journal.ppat.1002464
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Novel Transmembrane Receptor Involved in Phagosome Transport of Lysozymes and β-Hexosaminidase in the Enteric Protozoan Entamoeba histolytica
PLOS Pathogens: published February 23, 2012 | https://doi.org/10.1371/journal.ppat.1002539
Transient Reversal of Episome Silencing Precedes VP16-Dependent Transcription during Reactivation of Latent HSV-1 in Neurons
PLOS Pathogens: published February 23, 2012 | https://doi.org/10.1371/journal.ppat.1002540
Nonequivalence of Classical MHC Class I Loci in Ability to Direct Effective Antiviral Immunity
PLOS Pathogens: published February 23, 2012 | https://doi.org/10.1371/journal.ppat.1002541
ChLae1 and ChVel1 Regulate T-toxin Production, Virulence, Oxidative Stress Response, and Development of the Maize Pathogen Cochliobolus heterostrophus
PLOS Pathogens: published February 23, 2012 | https://doi.org/10.1371/journal.ppat.1002542
The Invasive Capacity of HPV Transformed Cells Requires the hDlg-Dependent Enhancement of SGEF/RhoG Activity
PLOS Pathogens: published February 23, 2012 | https://doi.org/10.1371/journal.ppat.1002543
Early Priming Minimizes the Age-Related Immune Compromise of CD8+ T Cell Diversity and Function
PLOS Pathogens: published February 23, 2012 | https://doi.org/10.1371/journal.ppat.1002544
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