Bulletin of Insectology (2007) 60, 317-318

R. D'Amelio, N. Massa, E. Gamalero, G. D'Agostino, S. Sampò, G. Berta, F. Faoro, M. Iriti, D. Bosco and C. Marzachì (2007)
Preliminary results on the evaluation of the effects of elicitors of plant resistance on chrysanthemum yellows phytoplasma infection
Bulletin of Insectology 60 (2), 317-318
First International Phytoplasmologist Working Group Meeting (IPWG), Bologna (Italy) November 12-15, 2007
Abstract: Delay of syndrome development and of plant death has been used to evaluate the activity of the arbuscular mycorrhizal fungi Glomus mosseae and G. intraradices, the rhizobacteria Pseudomonas putida S1PF1, Pseudomonas aureofaciens 30-84 and Streptomyces sp. SB20, chitosan, and benzo (1,2,3) thiadiazole-7-carbothioic acid S-methyl ester (BTH) as inducers of resistance against chrysanthemum yellows (CY) phytoplasma infection. While G. mosseae and P. putida S1PF1 slightly reduced the number of CY-infected plants and extended the life span of the affected plants, only 2.4 mM BTH provided some protection from the disease and a delay of the syndrome. Two concentration of chitosan dissolved in acetic or chloride acids were not effective, although some protection from the disease was present in plants sprayed only with acetic acid. Both acids induced phytotoxic effects on daisy plants.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
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Database assignments for author(s): Cristina Marzachi, Franco Faoro, Domenico Bosco

Research topic(s) for pests/diseases/weeds:
resistance/tolerance/defence of host
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
general biology - morphology - evolution

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Phytoplasma asteris	Chrysanthemum (genus)