Essential oils from condiment and medicinal plants in the control of contaminants from the micropropa-gation of Myrciaria dubia

Abstract The main limitation of the micropropagation camu-camu (Myrciaria dubia) is related to in vitro contamination. In order overcome contamination, effect essential oils was studied as an alternative conventional chemical treatments. This study aimed analyze action from four condiment and medicinal plants (Oregano, Origanum vulgare L.; Garlic, Allium sativum Citronella, Cymbopogon nardus L.;and Ginger, Zingiber officinale Rosc.) reducing microbial contamination growth on survival rate explants camu-camu. antimicrobial activity analyzed tissue culture at concentrations 0.5, 1, 2, 3 4 µL mL-1 woody plant medium (WPM), emulsified with 1% Polysorbate 80 (Tween 80). antibacterial strains isolated also using agar diffusion broth microdilution methods. use allowed a reduction culture, it being observed that, concentration 2 mL-1, there no manifestation fungal contaminants, significant bacterial exception ginger oil that showed all concentrations. Inversely relation vitro, increase explant oxidation increase, citronella oregano showing phytotoxic potential lowest Garlic better balance, lower rates greater control microorganisms 0.5 1 mL-1. Oregano test.