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J Virol. 2019 Mar 21;93(7). pii: e01688-18. doi: 10.1128/JVI.01688-18. Print 2019 Apr 1.

Chloroviruses Lure Hosts through Long-Distance Chemical Signaling.

Author information

1
Department of Plant Pathology, University of Nebraska-Lincoln, Lincoln, Nebraska, USA ddunigan2@unl.edu.
2
Nebraska Center for Virology, University of Nebraska-Lincoln, Lincoln, Nebraska, USA.
3
College of Science, University of Baghdad, Baghdad, Iraq.
4
School of Natural Resources, University of Nebraska-Lincoln, Lincoln, Nebraska, USA.
5
Medical Technical Institutes, Middle Technical University, Baghdad, Iraq.
6
Department of Plant Pathology, University of Nebraska-Lincoln, Lincoln, Nebraska, USA.
7
School of Biological Sciences, University of Nebraska-Lincoln, Lincoln, Nebraska, USA.

Abstract

Chloroviruses exist in aquatic systems around the planet and they infect certain eukaryotic green algae that are mutualistic endosymbionts in a variety of protists and metazoans. Natural chlorovirus populations are seasonally dynamic, but the precise temporal changes in these populations and the mechanisms that underlie them have heretofore been unclear. We recently reported the novel concept that predator/prey-mediated virus activation regulates chlorovirus population dynamics, and in the current study, we demonstrate virus-packaged chemotactic modulation of prey behavior.IMPORTANCE Viruses have not previously been reported to act as chemotactic/chemoattractive agents. Rather, viruses as extracellular entities are generally viewed as non-metabolically active spore-like agents that await further infection events upon collision with appropriate host cells. That a virus might actively contribute to its fate via chemotaxis and change the behavior of an organism independent of infection is unprecedented.

KEYWORDS:

chemotaxis; chlorovirus; giant virus; population dynamics; symbiosis

PMID:
30626679
PMCID:
PMC6430536
[Available on 2019-09-21]
DOI:
10.1128/JVI.01688-18

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