ENTRY OF A CHLORELLA-VIRUS INTO ITS HOST-CELL

被引：9

作者：

REISSER, W ^{[1
]}

KAPAUN, E ^{[1
]}

机构：

[1] UNIV GOTTINGEN,BOT GARTEN,W-3400 GOTTINGEN,GERMANY

来源：

JOURNAL OF PHYCOLOGY | 1991年 / 27卷 / 05期

关键词：

CHLORELLA; CHLORELLA-VIRUS; CHLOROPHYCEAE; CELL WALL-LYTIC ACTIVITY; ENTRY MECHANISM; PHYCOVIRUS; VIRUS; VIRUS-ASSOCIATED ENZYMES;

D O I：

10.1111/j.0022-3646.1991.00609.x

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

The endosymbiotic Chlorella sp. (Chlorophyceae) of Paramecium bursaria (Ciliata) can be infected by a double-stranded DNA-containing virus (Chlorella-virus) that has a phagelike entry mechanism. Electron micrographs show that soon after attachment of the virus to the algal cell wall, a hole is formed through which the viral DNA enters the alga. Biochemical studies on a European Chlorella-virus system suggest that digestion of the algal cell wall is caused by glycolytic enzymes, one of which was identified as a beta-D-glucosidase. Enzymes are bound to the virus capsid and are activated only after or by the attachment of the virus to its cognate alga or to preparations of the algal cell wall. Common features of viral cell wall-digesting enzymes and algal autolysins are discussed.

引用

收藏

页码：609 / 613

页数：5

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