Amaranthus Species (Family: Amaranthaceae) as Hosts of Plant-Viruses: A Review

Horváth, József (1991) Amaranthus Species (Family: Amaranthaceae) as Hosts of Plant-Viruses: A Review. ACTA PHYTOPATHOLOGICA ET ENTOMOLOGICA HUNGARICA, 26 (3-4). pp. 385-422. ISSN 0238-1249

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Abstract

The Amaranthus species as test plants, perennial virus hosts and inhibitor-containing plants are equally important in virus research. Of the about 1000 species of the genus Amaranthus 63 species (including four synonymous species) have so far been found to be susceptible to viruses according to our knowledge. The Amaranthus species are known to be susceptible to 121 viruses, and some 470 host-virus relations have been detected among them. There are remarkable differences in virus susceptibility between the Amaranthus species; some species, e.g. Amaranthus caudatus (syn.: A. cruentus) are susceptible to some 84 viruses while others (e.g. Amaranthus aurora, A. blitoides etc.) only to one each. Out of the viruses cucumber mosaic virus has the larges number of Amaranthus hosts (42 species), while e.g. Arracacha virus A and carnation Italian ringspot virus each has but a single Amaranthus host. Out of the 63 Amaranthus species susceptible to 121 viruses belonging to 24 virus groups (and to one "unidentified" and one "complex or mixed" virus group) the largest number of susceptible Amaranthus plants are known in the potyvirus group.

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