Phytotoxins produced by Lasiodiplodia laeliocattleyae involved in Botryosphaeria dieback of grapevines in Brazil

Pierluigi REVEGLIA, Marco MASI, Alessio CIMMINO, Sami MICHEREFF, Tamara CINELLI, Laura MUGNAI, Antonio EVIDENTE

Abstract


Botryosphaeria dieback (BD) is an important trunk disease affecting grapevines. Several Lasiodiplodia species have been shown to be involved in BD affecting the perennial organs of grapevine, mainly causing cankers. (R)-(-)-mellein and tyrosol, two well-known fungal phytotoxins, were isolated from the organic extract of culture filtrate of Lasiodiplodia laeliocattleyae (syn. egyptiacae), which had been isolated from grapevines affected by BD in Brazil. This increases knowledge of the secondary metabolites produced by Lasiodiplodia species, confirming that (R)-(-)-mellein is a toxin typically produced by Botryosphaericeae species.


Keywords


grapevine wood disease; phytotoxins; (R)-(-)-mellein; tyrosol

Full Text:

PDF


DOI: http://dx.doi.org/10.14601/Phytopathol_Mediterr-24647



Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License (CC-BY- 4.0)

 
Firenze University Press
Via Cittadella, 7 - 50144 Firenze
Tel. (0039) 055 2757700 Fax (0039) 055 2757712
E-mail: info@fupress.com