Enhancement of phenolic compounds in olive plants ( Olea europaea L.) and their influence on resistance against Phytophthora sp

The total phenol levels in different olive organs and tissues are studied. The HPLC-MS studies point to the presence of oleuropein, catechin and tyrosol as some of the main phenolic compounds in these extracts. The effect of Brotomax treatment on phenolic compound levels in this plant and the possib...

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Bibliographic Details
Published inFood chemistry Vol. 83; no. 1; pp. 75 - 78
Main Authors Rio, J.A. del, Baidez, A.G, Botia, J.M, Ortuno, A
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 2003
Subjects
Antifungal agents
Brotomax
Catechin
Oleuropein
Tyrosol
Catechin
Oleuropein
Brotomax
Tyrosol
Antifungal agents
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Summary:The total phenol levels in different olive organs and tissues are studied. The HPLC-MS studies point to the presence of oleuropein, catechin and tyrosol as some of the main phenolic compounds in these extracts. The effect of Brotomax treatment on phenolic compound levels in this plant and the possible role of these compounds as antifungal agents against Phytophthora sp. are also studied. An increase in the total phenol content of leaves and stems was observed 120 days after treatment with 0.3% Brotomax. The cortex was the stem tissue which showed the greatest accumulation of these secondary compounds. An in vitro study of the inhibitory effect of these compounds on fungal growth revealed that tyrosol was the most active agent, followed by catechin and oleuropein, their fungitoxic effect being greater when they acted synergically.
Bibliography:http://dx.doi.org/10.1016/S0308-8146(03)00051-7
ISSN:0308-8146
1873-7072
DOI:10.1016/S0308-8146(03)00051-7