Infection of Tetrahymena pyriformis by Legionella longbeachae and other Legionella species found in potting mixes.
نویسندگان
چکیده
All Legionella longbeachae strains, both serogroups of L. bozemanii, and three strains of L. anisa reproducibly infected washed Tetrahymena pyriformis at 30 degrees C. L. pneumophila serogroup 1 strains infected T. pyriformis less reproducibly than did L. longbeachae. Low-level concentrations of nutrients in cocultures inhibited infection. Four L. micdadei strains and L. anisa ATCC 35292 failed to infect T. pyriformis.
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fertilizer, and manure. Thirty-one strains of Legionella were recovered (table 1). L. longbeachae serogroup 1 was isolated from 8 samples; L. bozemanii serogroup 1, 9; Legionella micdadei, 5; Legionella pneumophila serogroup 4, 1; and L. pneumophila serogroup 12, 1. An unidentifiable Legionella species was isolated from four soil samples; Legionella gormanii, Legionella birminghamensis, and Leg...
متن کاملIsolation of Legionella longbeachae serogroup 1 from potting mixes.
Following a statewide outbreak of legionellosis due to Legionella longbeachae serogroup 1 in South Australia in 1988 and 1989, studies were performed to find a source of the organism. A number of water and soil samples with and without acid decontamination were examined for L. longbeachae by using a selective medium containing vancomycin, aztreonam, and pimafucin. There were no isolations of L....
متن کاملLegionella longbeachae and Legionellosis
Reported cases of legionellosis attributable to Legionella longbeachae infection have increased worldwide. In Australia and New Zealand, L. longbeachae has been a known cause of legionellosis since the late 1980s. All cases for which a source was confirmed were associated with potting mixes and composts. Unlike the situation with other Legionella spp., L. longbeachae-contaminated water systems ...
متن کاملDistribution of Legionella longbeachae serogroup 1 and other legionellae in potting soils in Australia.
Legionella longbeachae serogroup 1 and other Legionella spp. were isolated from 73% of 45 potting soils made in Australia by 13 manufacturers but were not detected in 19 potting soils made in Greece, Switzerland, and the United Kingdom examined between March 1989 and May 1990. Several Legionella species were isolated from a small number of samples of uncomposted pine sawdusts, but it is not kno...
متن کاملLegionella longbeachae infection in a persistent hand-wound after a gardening accident
INTRODUCTION Unlike other Legionella species, Legionella longbeachae has been associated with soil and potting composts instead of water systems, and it has caused pneumonia in gardeners. CASE PRESENTATION We report, to our knowledge, the first case of prolonged localized L. longbeachae infection in an accidental wound on the back of a hand caused by a broken flowerpot. CONCLUSION Identific...
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ورودعنوان ژورنال:
- Applied and environmental microbiology
دوره 62 3 شماره
صفحات -
تاریخ انتشار 1996