Light affects Varronia curassavica essential oil yield by increasing trichomes frequency

Author(s): Feijó E,Oliveira R, Costa L


Light can act on essential oil yield directly on synthesis of secondary metabolites, or indirectly on plant growth. Varronia curassavica Jacq., Boraginaceae, is a native medicinal species from Brazil known as “erva-baleeira”, with anti-inflammatory activity related to its essential oil. Despite pharmacological evidences of this species and its economic importance for herbal medicine production, little is known about the effect of light on growth and essential oil production. This study aimed to analyze the influence of different irradiances on growth, frequency of trichomes, essential oil yield and composition of V. curassavica. The irradiance affected plant growth, but no significant alteration on leaf biomass was detected. The increase in essential oil content under higher irradiance reflected on essential oil yield, and is associated with higher frequency of glandular, globular trichomes. The essential oil composition, rich in caryophyllene derivatives was affected by irradiance, but α-humulene, the constituent of pharmaceutical interest, remained unchanged.

Cordia verbenacea ; Irradiance; Medicinal plant; Caryophyllene oxide

Similar Articles

Bioactivity of essential oils and their volatile aroma components: Review

Author(s): ShaabanaHAE, El-Ghoraba AH, Shibamoto T

Composition and seasonal variation of the essential oil from leaves and peel of a cretan lemon variety

Author(s): Vekiari SA, Protopapadakis EE, Papadopoulou P,Papanicolaou D, Panou C, et al.

Volatile leaf oils of American Myrtaceae III

Author(s): Tucker AO, Maciarello MJ, Landrum LR

Chemical composition of the leaf essential oil of Psidium guajava L

Author(s): Chen HC, Sheu MJ, Lin LY, Wu CM

Chemical composition of essential oil of Psidium cattleianum var

Author(s): Chalannavar RK, Venugopala KN, Baijnath H, Odhav B

Morphological and Chemical Characterization of Psidium Species

Author(s): Sharma A, Sehrawat SK, Singhrot RS, Tele A

Monoterpene content in Origanum syriacum as affected by environmental conditions and flowering

Author(s): Dudai D, Putievsky E, Ravid U, Palevitch D, Halevy AH

Plant-Derived Antimalarial Agents: New Leads and Efficient Phytomedicines

Author(s): Batista R, de Jesús Silva JúniorA, de OliveiraAB