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ULTRASTRUCTURE OF HELICOBACTER PYLORI
Author(s) -
Saito Nagahito,
Oda Hisashi,
Sato Fujio,
Kato Mototsugu,
Takeda Hiroshi,
Sugiyama Toshiro,
Asaka Masahiro
Publication year - 2000
Publication title -
journal of gastroenterology and hepatology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.214
H-Index - 130
eISSN - 1440-1746
pISSN - 0815-9319
DOI - 10.1046/j.1440-1746.2000.00s17.x
Subject(s) - ultrastructure , helicobacter pylori , organism , microbiology and biotechnology , biology , genetics , anatomy
The ultrastructure of cell gives suggestions to the elucidation of the function. The study about the ultrastructure of H. pylori is important to know the nature of the organism. It is beyond doubt that Helicobacter pylori (H. pylori) is related to the pathogenesis of gastric disorders and it has been sequenced the bacterial genome. Although many morphological studies have been performed about this organism by light microscopy, few reports about theprecise ultrastructure exist. In general, H. pylori are divided into two types: spiral forms and coccoid ones. It is considered that the former is changing into the latter in an undesirable environment. It remains obscure about the nature of the letter such as the detailed ultrastructure, the transformation process or the viability. There are antithetic concepts about the coccoid H. pylori. One is that this type of the organism remains in a degenerated state. The other is that such organism is viable and non‐culturable. In addition to these opinions. I exhibit the third view. That is, the coccoid form are divided into two types; type I whose ultrastructure is generally nonspecific and type II identically intact. Moreover, type II coccoid form is also suggested to process growth viability. In this symposium, the ultrastructure of the cultured H. pylori (ATCC43504) will suggest some hypotheses about the nature. Some other natures will be also hypothesized from our ultrastructural study.