Репродуктивні ендосимбіотичні бактерії антарктичних ногохвісток: на порозі нових відкриттів?
- Arsenophonus,
- Cardinium,
- Collembola,
- Rickettsia,
- Spiroplasma
- Wolbachia ...Більше
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Ця робота ліцензується відповідно до Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Анотація
Eндосимбіотичні бактерії інфікують величезну кількість безхребетних представників різноманітних таксонів. У цій роботі представлено огляд результатів щодо ідентифікації ендосимбіотичних бактерій (зокрема родів Wolbachia, Cardinium, Rickettsia, Arsenophonus та Spiroplasma), здатних потенційно впливати на репродуктивні стратегії організму-хазяїна у представників фауни Collembola Антарктичного регіону. Ці бактерії грають важливу роль у формуванні адаптаційних механізмів та популяційних структур членистоногих поза Антарктикою в мінливих умовах довкілля. В даній роботі проаналізовано видове різноманіття антарктичних колембол та проведено ретроспективний пошук відомостей про інфікування видів, які зустрічаються в даному регіoні та поза ним бактеріями-ендосимбіонтами. Встановлено, що дані бактерії інфікують представників ногохвісток, зокрема тих, які можуть зустрічатися в Антарктиці (Folsomia candida, Megalothorax minimus, Mesaphorura macrochaeta, Parisotoma notabilis). Екологія та фізіологія членистоногих регіону вже ґрунтовно вивчені. Втім, на сьогодні у доступних наукових джерелах відсутня інформація, яка б свідчила про наявність відповідних ендосимбіотичних асоціацій у колембол Антарктики. Виявлений дефіцит даних може вказувати як на потенційну ізольованість місцевих популяцій, так і на існування умов, за яких інфікування ногохвісток Антарктики бактеріями родів Wolbachia, Cardinium, Rickettsia, Arsenophonus та Spiroplasma не можливе в силу тих чи інших причин. Водночас, потребується проведення більш масштабних молекулярно-генетичних скринінгів із застосуванням сучасних методів сиквенування з метою отримання остаточної відповіді з питання можливого інфікування антарктичних видів ногохвісток ендосимбіотичними бактеріями. Проведений аналіз літературних даних окреслює перспективний напрям для подальших досліджень мікроорганізмів-симбіонтів антарктичних організмів, зокрема ногохвісток.
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