10 فروردین 1403

غلامرضا عبدی

مرتبه علمی: استادیار
نشانی: پژوهشکده خلیج فارس - گروه زیست فناوری
تحصیلات: دکترای تخصصی / بیوتکنولوژی گیاهان دارویی
تلفن: -
دانشکده: پژوهشکده خلیج فارس

مشخصات پژوهش

عنوان Origanum vulgare terpenoids modulate Myrmica scabrinodis brain biogenic amines and ant behaviour
نوع پژوهش مقالات در نشریات
کلیدواژه‌ها
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مجله PLoS One
شناسه DOI
پژوهشگران Giuseppe Mannino (نفر اول) ، غلامرضا عبدی (نفر دوم) ، Massimo Emilio Maffei (نفر سوم) ، Francesca Barbero (نفر چهارم)

چکیده

Coordinated social behaviour is fundamental for ant ecological success. However, even distantly- related organisms, such as plants, have evolved the ability to manipulate ant collective performances to their own advantage. In the parasitic system encompassing Maculinea butterflies, Myrmica ants, and Origanum vulgare plants, the ant-plant interaction elicits the release of a volatile terpenoid compound (carvacrol) which is used by the gravid butterfly to locate the ideal oviposition site. Here we show that this ant-plant association is maintained by the effect of O. vulgare terpenoids on ant behaviour and that food plants might gain protection by Myrmica ants by chemically manipulating workers to forage in their surroundings. The variation in the locomotor ability of three ant species (Formica cinerea, Tetramorium caespitum, and Myrmica scabrinodis) was studied after treatment with the two major O. vulgare terpenoid volatile compounds (i.e., carvacrol and thymol). The brain levels of three biogenic amines (dopamine, tyramine and serotonin) were analysed in ants exposed to the O. vulgare terpenoids by HPLC-ESI-MS/MS. Carvacrol and thymol increased the locomotor activity of all ant species tested, but if blended reduced the movement propensity of Myrmica scabrinodis. Dopamine and tyramine production was positively correlated with the worker locomotor activity. In Myrmica ants, both brain biogenic ammines were negatively correlated with the aggressive behaviour. Blends of O. vulgare volatiles affected the locomotor ability while increased the aggressiveness of Myrmica workers by altering the aminergic regulation in the ant brains. This behavioural manipulation, might enhance partner fidelity and plant protection. Our findings provide new insights supporting a direct role of plant volatiles in driving behavioural changes in social insects through biogenic amine modulation.