Chemical diversity of native populations of Varronia curassavica Jacq. and antifungal activity against Lasiodoplodia theobromae

•High chemical diversity was observed within populations of Varronia curassavica.•Five chemical groups were formed from the constituents of the essential oils.•There is high correlation between bioactive compounds from V. curassavica.•The essential oil of V. curassavica showed fungistatic activity....

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Bibliographic Details
Published in:	Industrial crops and products Vol. 76; pp. 437 - 448
Main Authors:	Nizio, Daniela Aparecida de Castro, Brito, Fabiany de Andrade, Sampaio, Taís Santos, Melo, Juliana de Oliveira, Silva, Fábio Leal Santos da, Gagliardi, Paulo Roberto, Arrigoni-Blank, Maria de Fátima, Anjos, Charlene Souza dos, Alves, Péricles Barreto, Wisniewski Junior, Alberto, Blank, Arie Fitzgerald
Format:	Journal Article
Language:	English
Published:	Elsevier B.V 15-12-2015
Subjects:	Chemical constituents Essential oil Germplasm Phytopathogens Varronia curassavica Germplasm Phytopathogens Essential oil Chemical constituents Varronia curassavica
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Summary:	•High chemical diversity was observed within populations of Varronia curassavica.•Five chemical groups were formed from the constituents of the essential oils.•There is high correlation between bioactive compounds from V. curassavica.•The essential oil of V. curassavica showed fungistatic activity. The aim of this work was to characterize the chemical diversity of the essential oil from leaves of five native populations of Varronia curassavica Jacq. collected in Northeast Brazil and to evaluate the antifungal potential of the essential oil from plants sampled of each chemical group against Lasiodiplodia theobromae. The essential oils of 59 plants, collected in five localities, were obtained by hydrodistillation and analyzed by GC/MS-FID. Sixty-three compounds were detected in the essential oil of V. curassavica, of which 53 were identified. High chemical diversity was observed among the plants, which are distributed within the chemical groups, regardless of the collection site. By cluster analysis, there was formation of five groups. The cluster 1, consisting of 14 plants, was characterized by presenting turmerone and E-caryophyllene as the major compounds. Cluster 2, consisting of 4 plants, presented as major compounds tricyclene and camphene. Cluster 3, consisting of 5 plants, presented α-zingiberene and β-sesquiphellandrene as the major compounds. Cluster 4, consisting of 13 plants, was characterized by presenting E-caryophyllene and/or 7-cyclodecen-1-ona, 7-methyl-3-methylene-10-(1-propyl) as the major compounds. Cluster 5, consisting of 23 plants, presented 7-cyclodecen-1-ona, 7-methyl-3-methylene-10-(1-propyl) as the major compound. High correlation was observed between the compounds α-humulene and E-caryophyllene. The essential oil of the plants from the clusters 2, 4 and 5 inhibited approximately 75% of the mycelial growth of L. theobromae, after 96 hours of incubation.
ISSN:	0926-6690 1872-633X
DOI:	10.1016/j.indcrop.2015.07.026