1. Plenary lecture


, Volume 326, Issue 1, pp 21-28

First online:

Host-virus interactions in marine brown algae

  • Dieter G. MüllerAffiliated withFakultät für Biologie der Universität

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Ectocarpus-like marine brown algae are frequently parasitized by polyhedric DNA viruses. Infected hosts have been studied in unialgal and axenic cultures, and the present state of knowledge is summarized in regard to stage-specific virus expression, discharge and survival time of virus particles, infection mechanism, association with host's nuclear genome, passage of the virus genome through mitosis and meiosis of the host, suppression of symptoms and spontaneous recovery of infected plants, host specificity and intergeneric transmission, vitality of infected plants, pandemic occurrence of virus infections, molecular data on Ectocarpus and Feldmannia viruses, and algal DNA-viruses as potential vectors for gene transfer. A scheme for the nomenclature of brown algal viruses is proposed.

Key words

DNA-virus Ectocarpus Feldmannia Hincksia pathology Phaeophyceae