Pseudomonas tolaasii

From Wikipedia, the free encyclopedia
Jump to: navigation, search
Pseudomonas tolaasii
Scientific classification
Kingdom: Bacteria
Phylum: Proteobacteria
Class: Gamma Proteobacteria
Order: Pseudomonadales
Family: Pseudomonadaceae
Genus: Pseudomonas
Species: P. tolaasii
Binomial name
Pseudomonas tolaasii
Paine 1919
Type strain
ATCC 33618

CCUG 23369 and 32782
CFBP 2068
CIP 106735
ICMP 12883
JCM 21583
LMG 2342
NCPPB 2192

Pseudomonas tolaasii is a species of Gram-negative soil bacteria that is the causal agent of bacterial blotch on cultivated mushrooms (Agaricus bisporus).[1] It is known to produce a toxin, called tolaasin, which is responsible for the brown blotches associated with the disease.[2] It also demonstrates hemolytic activity, causing lysis of erythrocytes.[3] Based on 16S rRNA analysis, P. tolaasii has been placed in the P. fluorescens group.[4]


  1. ^ Brodey (1991). "Bacterial blotch disease of the cultivated mushroom is caused by an ion channel forming lipodepsipeptide toxin". Molecular Plant Microbe Interactions. 1 (4): 407–411. doi:10.1094/MPMI-4-407. 
  2. ^ Soler-Rivas; et al. (1999). "Biochemical and physiological aspects of brown blotch disease of Agaricus bisporus". FEMS Microbiology Reviews. 23 (5): 591–614. PMID 10525168. doi:10.1111/j.1574-6976.1999.tb00415.x. 
  3. ^ Munsch P, Alatossava T. (2002). "Several pseudomonads, associated with the cultivated mushrooms Agaricus bisporus or Pleurotus sp., are hemolytic". Microbiol Res. 157 (4): 311–315. PMID 12501995. doi:10.1078/0944-5013-00159. 
  4. ^ Anzai; et al. (Jul 2000). "Phylogenetic affiliation of the pseudomonads based on 16S rRNA sequence". Int J Syst Evol Microbiol. 50 (4): 1563–89. PMID 10939664. doi:10.1099/00207713-50-4-1563. 

External links[edit]