Page 18 - Volume 1, Issue 1, January 2008

K. Elena et al. 16
Table 3 (continued)
Pathogen Host Transmission Reference
Little cherry virus I Cherry Grafting Maliogka et al., 2006
Maize rough dwarf virus Maize Planthoppers-persistent Dovas et al., 2004
Odontoglossum ringspot virus Orchid Mechanically Dovas et al., 2001d
Olive mild mosaic virus Spinach ? Gratsia et al., 2006
Onion yellow dwarf virus Garlic, onion Aphids–non persistent Dovas et al., 2001b
Parietaria mottle virus Tomato ? Roggero et al., 2000
Pea enation mosaic virus Pea Aphids- persistent Chatzivassiliou et al., 2006
Pea seed-borne mosaic virus Pea Aphids– non persistent Chatzivassiliou et al., 2006
Peach latent mosaic viroid Pear Grafting, mechanically Kyriakopoulou &
Hadidi, 1998
Pear blister canker viroid Pear Grafting, mechanically Kyriakopoulou &
Hadidi, 1998
Potato virus Y NTN
Potato virus Y NW
Potato Aphids–non persistent Bem et al., 1999
Varveri, 2006
Rupestris stem pitting
associated virus-1
Grapevine Grafting Dovas et al., 2001c
Shallot latent virus Garlic Aphids–non persistent Dovas et al., 2001b
Sowbane mosaic virus Spinach Pollen, seed Gratsia et al., 2006
Tomato chlorosis virus Tomato Aleurodes-semi
persistent
Dovas et al., 2002
Tomato infectious chlorosis virus Tomato T. vaporariorum-semi
persistent
Dovas et al., 2002
Tomato mild green mosaic virus Tree tobacco Mechanically Mathioudakis et al., 2006
Tomato yellow leaf curl virus Tomato B. tabaci-persistent Avgelis et al., 2001
Tomato yellow leaf curl
Sardinia virus
Tomato B. tabaci-persistent Papagiannis et al., 2007a
propagating material.
Pea enation  mosaic virus (PEMV, genus
Enamovirus), Bean leaf roll virus (BLRV,
genus Luteovirus), Pea seed-borne
mosaic virus (PSbMV, genus Potyvirus),
Beet mosaic virus (BtMV, genus Potyvirus)
During 2000, a survey was conducted in
pea (Pisum sativum L.) crops in Thessaloniki
and Thessaly and symptomatic samples were
collected. Persistently (PEMV, BLRV) and non
persistently (PSbMV, BtMV) aphid transmitted
viruses were identified by serological meth-
ods: PEMV (44%), BLRV (40%), PSbMV (12%)
and BtMV (4%) (Chatzivassiliou et al., 2006).
Potato  virus Y NTN, Potato virus Y NWilga
(PVYNTN, PVYNW, genus Potyvirus )
Potato tuber necrotic ringspot dis-
ease (PTNRD) was first observed in com-
mercial potato (Solanum tuberosum L.)
fields of the Nevrokopi region in North-
ern Greece in 1994. Measures taken at that
time halted further disease spread. PTN-
RD reappeared in the same area in 1998
in a more aggressive manner (Bem et al.,
1999). Severe symptoms appeared in 80%
of the tubers of the cultivar Hermes im-
ported from Scotland whereas other cul-
tivars were affected at a lower rate. Symp-