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(Reference retrieved automatically from SciELO through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

In vivo elicitation is efficient in increasing essential oil yield with high anti-inflammatory sesquiterpene content in Varronia curassavica Jacq.

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Author(s):
Elisa Ramos Melo [1] ; Eliane Gomes Fabri [2] ; Hélida Mara Magalhães [3] ; Pedro Henrique Gorni [4] ; Ana Cláudia Pacheco [5]
Total Authors: 5
Affiliation:
[1] Universidade do Oeste Paulista (UNOESTE). Departamento de Agronomia - Brasil
[2] Instituto Agronômico de Campinas (IAC). Centro de Horticultura - Brasil
[3] Universidade Paranaense (UNIPAR). Departamento de Agronomia - Brasil
[4] Universidade Estadual Paulista (UNESP). Departamento de Engenharia de Biossistemas - Brasil
[5] Universidade do Oeste Paulista (UNOESTE). Departamento de Agronomia - Brasil
Total Affiliations: 5
Document type: Journal article
Source: Chilean J. Agric. Res.; v. 83, n. 3, p. 369-379, 2023-06-00.
Abstract

ABSTRACT Essential oils in plants are produced in very low concentrations and elicitation stands out among the techniques used to increase their productivity. This work evaluated the potential elicitor of salicylic acid (SA) or seaweed extract (SE) on the biomass yield, physiological parameters and essential oil production in Varronia curassavica Jacq. plants. The elicitors were applied through foliar spray in four serial applications (21, 34, 53 and 70 d after transplanting the seedlings to the pots - DAT), in concentrations of 1 mM (SA) and 5 mL L-1 (SE). The control plants were sprayed with water. Biometric measurements of plant height and number of branches were performed after 2, 3 and 4 elicitor applications. Plants were harvested at 91 DAT and biometric, biochemical and phytochemical parameters were evaluated. Application of SA resulted in increases in number of leaves (11.68%) and foliar concentrations of chlorophylls (57.67%), anthocyanins (73.80%), carotenoids (42.58%), total soluble sugars (19.48%) and essential oil (18%). The plants treated with SE had no changes in leaf biomass or essential oil production. The SA treatment increased by twice the amount of α-humulene and (E)-caryophyllene present in the essential oil while for SE treatment there was an average increase of 78.6%. It was concluded that the elicitation of V. curassavica plants by SA foliar pulverization is an efficient strategy for promoting the higher productivity of leaves and essential oil. Foliar pulverization of SA or SE modifies essential oil quality, inducing increases in the compounds of greatest interest for the pharmaceutical industry. (AU)

FAPESP's process: 18/25812-1 - Multi-User Equipment approved in grant 2017/50338-9: gas chromatograph (GC/MS)
Grantee:Marcia Ortiz Mayo Marques
Support Opportunities: Multi-user Equipment Program
FAPESP's process: 17/50338-9 - From basic to applied science: upgrading the institutional infrastructure for supporting research and agribusiness innovations (PDIp)
Grantee:Sérgio Augusto Morais Carbonell
Support Opportunities: Research Grants - State Research Institutes Modernization Program
FAPESP's process: 20/16259-7 - Elicitation in the medicinal plant Varronia curassavica Jacq .: a proposal for increasing the production of essential oil anD SUSTAINABLE CULTIVATION
Grantee:Elisa Patricia Ramos de Melo
Support Opportunities: Scholarships in Brazil - Scientific Initiation