Unique behavioral patterns of wandering colonies of Brevibacillus thermoruber on agar plates.
Brevibacillus thermoruber
motile colony
swarming
swimming
wandering colony
Journal
Journal of basic microbiology
ISSN: 1521-4028
Titre abrégé: J Basic Microbiol
Pays: Germany
ID NLM: 8503885
Informations de publication
Date de publication:
23 Apr 2024
23 Apr 2024
Historique:
revised:
27
03
2024
received:
20
02
2024
accepted:
10
04
2024
medline:
23
4
2024
pubmed:
23
4
2024
entrez:
23
4
2024
Statut:
aheadofprint
Résumé
Brevibacillus thermoruber strain Nabari cells grow as widely spreading dendritic colonies on reasoner's 2A-agar (1.5%) plates at around 55°C but as small motile colonies at 37°C. Motile colonies can be divided into colonies that move in straight or curved lines over long distances (wandering colonies), and colonies that rotate at a fixed location (rotating colonies). The addition of surfactant to the agar medium greatly increased the frequency of wandering colonies and facilitated the study of such colonies. The morphology of the wandering colonies varied: circular at the tip and pointed at the back, lemon-shaped with pointed ends, crescent-shaped, bullet-shaped, fish-like, and so on. A single colony may split into multiple colonies as it moves, or multiple colonies may merge into a single colony. The most surprising aspect of the movement of wandering colonies was that when a moving colony collides with another colony, it sometimes does not make a U-turn, but instead retreats straight back, as if bouncing back. The migration mechanisms of wandering colonies are discussed based on optical microscopic observations of swimming patterns of single cells in water and scanning electron microscopy of the arrangement of bacterial cells in wandering colonies.
Identifiants
pubmed: 38651780
doi: 10.1002/jobm.202400091
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
e202400091Informations de copyright
© 2024 Wiley‐VCH GmbH.
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