Acaricidal bioactivity and molecular target analysis of Origanum onites and Ocimum gratissimum essential oils against Haemaphysalis doenitzi ticks.

ABSTRACT:

Background

Haemaphysalis doenitzi is a parasite mainly found on the body surface of birds that is capable of transmitting rickettsiae and borrelia, which can cause serious zoonotic diseases. Chemical acaricides are controversial because they pollute the environment and predispose ticks to resistance. In contrast, plant essential oils (EOs) are favored for their effective acaricide properties and environmental friendliness.

Methods

The constituents of Origanum onites and Ocimum gratissimum EOs were profiled using gas chromatography-mass spectrometry (GC-MS). Acaricidal activities were evaluated by immersing unfed nymphs and adults of H. doenitzi in serial solutions for 5 min and monitoring mortality after 24 h. Enzyme activities (Na⁺/K⁺-ATPase, GST, CarE, AChE) and transcript

SUBMITTER: Zhang S 

PROVIDER: S-EPMC12506390 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature