Effect Of Accessions And Environment Conditions On Coumarin, O-coumaric And Kaurenoic Acids Levels Of Mikania Laevigata

Coumarin, o-coumaric, and kaurenoic acid are bioactive compounds usually found in the leaves of Mikania laevigata. Genetic and environmental variations in the secondary metabolites of plants may have implications for their biological effects. Three different accessions of M. laevigata cultivated in four sites between the Equator and the Tropic of Capricorn in Brazil were evaluated aiming to present potential raw materials and discuss relationships among these three bioactive compounds. The results revealed effects of plant accessions and environmental factors and suggested two contrasting chemical phenotypes of M. laevigata. The first phenotype presented the highest levels of kaurenoic acid (2283 +/- 316 mg/100 g) besides lower levels of coumarin (716 +/- 61 mg/100 g), which was also stimulated by the environment and mild climate at the site nearest to the Tropic of Capricorn. The other phenotype presented the lowest levels of kaurenoic acid (137 +/- 17 mg/100 g) besides higher levels of coumarin (1362 +/- 108 mg/100 g), which was also stimulated by the environment and tropical climate at the site nearest to the Equatorial beach.821614311437EMBRAPA [02.10.06.019.00.03

Response to selection per generation (S), accuracy of the index (R_IH), and monetary overall genetic gain per generation (Δ<i>G</i>) for weight of 100 seeds (W100S, g), seed oil content (SOC, %) and phorbol ester concentration in seeds (PEC, mg/g) using selection index.

<p>Response to selection per generation (S), accuracy of the index (R_IH), and monetary overall genetic gain per generation (Δ<i>G</i>) for weight of 100 seeds (W100S, g), seed oil content (SOC, %) and phorbol ester concentration in seeds (PEC, mg/g) using selection index.</p

Ward cluster method based on the Mahalanobis distance, calculated using genotypic values estimated by the Bayesian multi-trait analysis.

<p>Ward cluster method based on the Mahalanobis distance, calculated using genotypic values estimated by the Bayesian multi-trait analysis.</p

Scenarios with the respective traits considered by the selection criteria.

<p>Scenarios with the respective traits considered by the selection criteria.</p

Variance components and genetic parameters estimated under the Bayesian multi-trait analysis via Gibbs sampling of weight of 100 seeds (W100S), seed oil content (SOC) and phorbol ester concentration (PEC) traits.

<p>Variance components and genetic parameters estimated under the Bayesian multi-trait analysis via Gibbs sampling of weight of 100 seeds (W100S), seed oil content (SOC) and phorbol ester concentration (PEC) traits.</p

Heritability (diagonal), genotypic (above) and phenotypic (below) correlation between traits.

<p>Heritability (diagonal), genotypic (above) and phenotypic (below) correlation between traits.</p

Genotypic values (above diagonal) and phenotypic values (below diagonal) distributions between seed oil content (SOC, g), weight of 100 seed (W100S, %) and phorbol ester concentration (PEC, mg/g).

<p>Genotypic values (above diagonal) and phenotypic values (below diagonal) distributions between seed oil content (SOC, g), weight of 100 seed (W100S, %) and phorbol ester concentration (PEC, mg/g).</p

Effect of accessions and environment conditions on coumarin, O-Coumaric and Kaurenoic acids levels of Mikania laevigata

Coumarin, o-coumaric, and kaurenoic acid are bioactive compounds usually found in the leaves of Mikania laevigata. Genetic and environmental variations in the secondary metabolites of plants may have implications for their biological effects. Three different accessions of M. laevigata cultivated in four sites between the Equator and the Tropic of Capricorn in Brazil were evaluated aiming to present potential raw materials and discuss relationships among these three bioactive compounds. The results revealed effects of plant accessions and environmental factors and suggested two contrasting chemical phenotypes of M. laevigata. The first phenotype presented the highest levels of kaurenoic acid (2283 +/- 316 mg/100 g) besides lower levels of coumarin (716 +/- 61 mg/100 g), which was also stimulated by the environment and mild climate at the site nearest to the Tropic of Capricorn. The other phenotype presented the lowest levels of kaurenoic acid (137 +/- 17 mg/100 g) besides higher levels of coumarin (1362 +/- 108 mg/100 g), which was also stimulated by the environment and tropical climate at the site nearest to the Equatorial beach821614311437sem informaçã