Krótko przypomniano źródła informacji o zasadach taksonomii wirusów i uzasadniono włączenie do tekstu wirusów grzybów oraz wiroidów. Wykaz wirusów w tej części obejmuje rodziny Geminiviridae, Nanoviridae, Caulimoviridae i Rhizidioviridae.
The sources of information concerning the principles of virus taxonomy were briefly recalled including International Committee on Taxonomy of Viruses (ICTV) Reports as well as special papers published in foreign and Polish scientific journals. The viruses infecting fungi were included to the list because they may become a tool for controlling fungus diseases of plants. The viroids were included as well, because they are present in all the newest ICTV Reports. The type species for particular virus taxons are marked with an asterisk. We decided to add the acronyms for official English names of virus species. They are not obligatory but they are commonly used. Polish names for virus species are needed in scientific papers published in Polish, as well as for handbooks and teaching process of plant pathology and virology and also in various law acts and documents produced by state and local administration. The list of plant viruses officially accepted by ICTV with Polish names for species was recently published in 2002 and 2007 so it has to be actualized. Based on the list of plants and fungi viruses and viroids included in ICTV Master Species List 2016 v 1.3 (https://talk.ictvonline.org/files/master-species-lists/m/msl/6776) as well as in the “Virus taxonomy. Ninth Report of ICTV” [King et al. 2012, Elsevier Academic] and according to the order of the mentioned viruses in these publications, we presented the propositions of Polish names of viruses with the DNA genomes [ssDNA and dsDNA (RT)]. The list of virus species includes families Geminiviridae, Nanoviridae, Caulimoviridae and Rhizidioviridae. Very short, almost concise description of the mentioned families is presented. Other virus species will be listed in a series of publications (parts 2–4).