Spherical parasporal inclusions of the Lepidoptera-specific and Coleoptera-specific Bacillus thuringiensis strains: A comparative electron microscopic study

Naoya Wasano, Chisa Yasunaga-Aoki, Ryoichi Sato, Michio Ohba, Takeshi Kawarabata, Hidenori Iwahana

研究成果: Contribution to journalArticle査読

6 被引用数 (Scopus)

抄録

Four Lepidoptera-specific Bacillus thuringiensis strains that belong to the four H serogroups (serovars sumiyoshiensis, fukuokaensis, darmstadiensis, and japonensis) and a Coleoptera (Scarabaeidae)-specific strain belonging to serovar japonensis were examined for comparative ultrastructure of spherical parasporal inclusions. The prominent feature of the inclusions of the Lepidoptera-specific strains was the existence of thick, highly electron- dense envelopes surrounding a homogeneous protein matrix. The envelopes were 15.0-66.7 nm thick and consisted of 5-12 layers of membrane. This is also the case with inclusions of a Coleoptera-specific strain. The ultrastructure of inclusions from the five strains was in marked contrast to that of the bipyramidal parasporal inclusions produced by a Lepidoptera-specific serovar sotto strain.

本文言語英語
ページ(範囲)128-131
ページ数4
ジャーナルCurrent Microbiology
40
2
DOI
出版ステータス出版済み - 1 18 2000

All Science Journal Classification (ASJC) codes

  • 微生物学
  • 応用微生物学とバイオテクノロジー

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