THE TOXIC DINOFLAGELLATE PROROCENTRUM-LIMA AND ITS ASSOCIATED BACTERIA .1. AN ULTRASTRUCTURAL-STUDY

被引：13

作者：

DETRAUBENBERG, CR

GERAUD, ML

SOYERGOBILLARD, MO

EMDADI, D

机构：

[1] UNIV PARIS 06, CNRS,URA 117,OBSERV OCEANOL BANYULS,LAB ARAGO, DEPT BIOL CELLULAIRE & MOLEC, F-66650 BANYULS SUR MER, FRANCE

[2] IFREMER, NANTES, FRANCE

[3] MARINE ENDOUME STN, MARSEILLE, FRANCE

来源：

EUROPEAN JOURNAL OF PROTISTOLOGY | 1995年 / 31卷 / 03期

关键词：

TOXIC DINOFLAGELLATE; BACTERIA; ASSOCIATION; ULTRASTRUCTURE;

D O I：

10.1016/S0932-4739(11)80096-9

中图分类号：

Q93 [微生物学];

学科分类号：

071005 ; 100705 ;

摘要：

Prorocentrum lima Ehrenberg (Dodge) and its associated bacteria were examined by scanning and transmission electron microscopy. The absence of trichocysts in this species is confirmed. The peculiarities of this P. lima strain (PL2V) were an abundance of intracellular reserves and extensive development of fibrous bodies, probably constituting a part of the pusule. Associated bacterial microflora was abundant. Various morphological types of free-living bacteria were found free-floating in the liquid culture medium. Numerous bacteria were directly attached to the dinoflagellate cell or agglomerated, forming large aggregates in the P. lima mucus. Bacteria-like inclusions were visible in a few percent of the P. lima cells observed. We suggest that they were intracellular bacteria, and that bacterial infection within this toxic dinoflagellate is possible, but occurs only rarely. This SEM and TEM study provides the first evidence for an association between this toxic dinoflagellate and surrounding bacteria.

引用

页码：318 / 326

页数：9

共 38 条

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