Banca de DEFESA: LUCAS PERANOVICHI E LIMA

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : LUCAS PERANOVICHI E LIMA
DATE: 10/03/2025
TIME: 08:00
LOCAL: https://meet.google.com/jah-ekny-cfa
TITLE:

The occurrence of (2E,6E)-methyl farnesoate in Varronia curassavica Jacq. (maria-preta) in southern Bahia an environmental influence factor?

KEY WORDS:

Cordia verbenacea; erva-baleeira; essential oils; medicinal plants; atlantic forest.

PAGES: 72
BIG AREA: Outra
AREA: Ciências Ambientais
SUMMARY:

In the area of the association of family farmers established at Fazenda Miramar, located in the municipality of Eunápolis-BA, a massive occurrence of the native Atlantic Forest species Varronia curassavica (Boraginaceae) was identified. This species, popularly known as maria-preta or erva baleeira, has proven anti-inflammatory properties, mainly due to the presence of the sesquiterpenes alpha-humulene and trans-caryophyllene. Its essential oil is the raw material for the first phytotherapeutic fully developed in Brazil and already has a consolidated market in the pharmaceutical and cosmetics industries. Between 2020 and 2022, a study on the  characterization of the chemical composition of the plants collected at Fazenda Miramar was carried out, in which the occurrence of the substance (2E,6E)-methyl farnesoate as the major compound was identified, with levels ranging from 18.4% to 22.8%. Comparing this analysis with 17 other studies conducted in different regions of Brazil, the presence of (2E,6E)-methyl farnesoate was observed in only two, both in the Northeast region, in the states of Bahia and Sergipe, with concentrations between 3.1% and 7.5%. Studies reveal that the chemical composition of plants can vary depending on the environmental conditions to which they are subjected. The objective of this research is to evaluate whether the presence of the substance (2E,6E)-methyl farnesoate in the plants occurring at Fazenda Miramar is the result of environmental influence or a characteristic presented by genetic variability in the species. For this, two mother plants from Fazenda Miramar with known chemical composition for the presence of (2E,6E)-methyl farnesoate were selected, seedlings were produced from cauline cuttings, and three experimental areas were established, located in Eunápolis-BA, Porto Seguro-BA, and Pinhais-PR, in order to expose the plants to different environmental conditions. In each experimental area, 55 seedlings were planted, 40 of which were obtained from the “B” mother plant and 15 from the “J” mother plant. The preliminary results of the research address the environmental characterization of the areas where the experiments are located, including the results of soil analyses and

COMMITTEE MEMBERS:
Externo à Instituição - CICERO DESCHAMPS - UFPR
Interno - 3072593 - FELIPE MICALI NUVOLONI
Presidente - 1955705 - GABRIELA NAREZI
Interno - 1782304 - JAILSON SANTOS DE NOVAIS
Externo à Instituição - LIN CHAU MING - UFAM