Bulletin of Insectology (2011) 64, S185-S186

Anna Zorloni, Fabio Quaglino, Nicola Mori, Giovanni Zanini and Piero A. Bianco (2011)
'Bois noir' phytoplasma can be transmitted to healthy Vitis vinifera L. plants by rootstocks
Bulletin of Insectology 64 (Suppl.), S185-S186
Second International Phytoplasmologist Working Group Meeting (IPWG), Neustadt an der Weinstraße (Germany) September 12-15, 2011
Abstract: The role of the rootstocks Kober 5BB, 420A and SO4 in 'bois noir' (BN) phytoplasma transmission was investigated in cuttings, named 'trionti', created by grafting a BN-infected grapevine cane (inoculum source) and a healthy grapevine bud grafted onto a healthy rootstock. Typical grapevine yellows symptoms were observed on five originally healthy grapevine sprouts, and specific real-time PCR analyses confirmed the presence of BN phytoplasmas. These findings evidenced that BN phytoplasma translocated from the infected cane to the healthy bud through the rootstock, highlighting the possible rootstock role in spreading BN phytoplasma in the nurseries.
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Database assignments for author(s): Piero Attilio Bianco, Nicola Mori

Research topic(s) for pests/diseases/weeds:
transmission/dispersal of plant diseases

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	16SrXII phytoplasma group	Grapevine (Vitis)	Italy