"Encyclopedia of plant viruses and viroids". 2019

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henry kuska
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"Encyclopedia of plant viruses and viroids". 2019

Post: # 72996Post henry kuska
Sat May 22, 2021 1:32 pm

This is what it states about PNRSV and roses (pages 2094 and 2095):

"Prunus necrotic ringspot virus (PNRSV)

Taxonomic position

Genus: Ilarvirus Family: Bromoviridae

PNRSV occurs worldwide, in the majority of the Rosa spp. growing areas (Curtis and Moran 1986; Wong et al. 1988; Moury et al. 2001; Sala-Rejczak and Paduch-Cichal 2005; Rakhshandehroo et al. 2006; Yardimci and Culal 2009; Milleza et al. 2013; He et al. 2015; Mitrofanova et al. 2018). The virus infected rose plants show symptoms such as chlorotic and necrotic ringspots on leaves, leaf mottling, color breaking of petals, and bud failure (Fulton 1976; Moran et al. 1988; Abdel-Salam et al. 2008). Vein-banding may occur from PNRSV infections after prolonged periods of temperature above 21 C.

Roses infected with some strains of PNRSV also showed symptoms of necrotic streaks on the stem, and flowers remained undeveloped and malformed (Moury et al. 2001). When PNRSV was present with other viruses such as ArMV and RSDaV, an oak-leaf pattern was often observed on the leaves (Milleza et al. 2013). The virus is transmitted by thrips vectors, the virus present in/on pollen, entering the host through injuries caused by thrips while feeding. The virus is transmissible mechanically and has a very wide host range infecting species in 21 dicotyledonous families. The virus is also transmissible by root grafting and by seed (Abdel-Salam et al. 2008; Golino et al. 2011). This virus spreads primarily by using virus-infected buds, scions, or rootstocks (Casper 1973; Barbara 1981). For more details of PNRSV, refer to Prunus persica."

https://www.worldcat.org/title/encyclop ... 1134076625

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