Isolation of <i>Neisseria elongata </i>subsp. <i>elongata </i>Isolated from an Acute Myelogenous Leukemia Patient

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  • KUBOTA Hiroaki
    Department of Microbiology, Tokyo Metropolitan Institute of Public Health
  • OKUNO Rumi
    Department of Microbiology, Tokyo Metropolitan Institute of Public Health
  • HATAKEYAMA Kaoru
    Department of Microbiology, Tokyo Metropolitan Institute of Public Health
  • SADAMASU Kenji
    Department of Microbiology, Tokyo Metropolitan Institute of Public Health
  • HIDAI Hiroko
    Tama-Hokubu Medical Center, Tokyo Metropolitan Health and Medical Treatment Corporation
  • FUJITA Akira
    Tama-Hokubu Medical Center, Tokyo Metropolitan Health and Medical Treatment Corporation
  • KAI Akemi
    Department of Microbiology, Tokyo Metropolitan Institute of Public Health

Bibliographic Information

Other Title
  • 急性骨髄性白血病患者からの<i>Neisseria elongata </i>subsp. <i>elongata </i>の 分離事例
  • 急性骨髄性白血病患者からのNeisseria elongata subsp. elongataの分離事例
  • キュウセイ コツズイセイ ハッケツビョウ カンジャ カラ ノ Neisseria elongata subsp. elongata ノ ブンリ ジレイ

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Abstract

Gram-negative cocci with a rod-like shape were isolated from a blood sample of a patient with acute myelogenous leukemia (AML). The 16S rRNA sequence of the isolate was similar to that of Neisseria elongata. Because previous reports about N. elongata as a pathogen have been extremely rare, more reliable identification seemed to be needed. We thus additionally performed a Multilocus Sequencing Analysis (MLSA) based on another four regions (argF, rho, recA, glnA), and confirmed the identification of N. elongata. The results from the MLSA identified the species ; however, we could not identify the isolates into subspecies from the sequences. Three subspecies of N. elongata (N. elongata subsp. elongata, N. elongata subsp. glycolytica and N. elongata subsp. nitroreducens) were classified based on three definitive characteristics (catalase possession, nitrite reducibility, and acid from glucose). The results of the tests of three characteristics supported the identification of the isolate as N. elongata subsp. elongata. Therefore we determined the isolate from the AML patient to be N. elongata subsp. elongata.

Journal

  • Kansenshogaku Zasshi

    Kansenshogaku Zasshi 89 (1), 10-15, 2015

    The Japanese Association for Infectious Diseases

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