Lysophosphatidylcholine 17:1 from the Leaf Surface of the Wild Potato Species Solanum bulbocastanum Inhibits Phytophthora infestans.
J Agric Food Chem
; 69(20): 5607-5617, 2021 May 26.
Article
in En
| MEDLINE
| ID: mdl-33988025
ABSTRACT
Late blight, caused by the oomycete Phytophthora infestans, is economically the most important foliar disease of potato. To assess the importance of the leaf surface, as the site of the first encounter of pathogen and host, we performed untargeted profiling by liquid chromatography-mass spectrometry of leaf surface metabolites of the susceptible cultivated potato Solanum tuberosum and the resistant wild potato species Solanum bulbocastanum. Hydroxycinnamic acid amides, typical phytoalexins of potato, were abundant on the surface of S. tuberosum, but not on S. bulbocastanum. One of the metabolites accumulating on the surface of the wild potato was identified as lysophosphatidylcholine carrying heptadecenoic acid, LPC171. In vitro assays revealed that both spore germination and mycelial growth of P. infestans were efficiently inhibited by LPC171, suggesting that leaf surface metabolites from wild potato species could contribute to early defense responses against P. infestans.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Solanum tuberosum
/
Solanum
/
Phytophthora infestans
Language:
En
Journal:
J Agric Food Chem
Year:
2021
Document type:
Article
Affiliation country: