В огляді проаналізовано й узагальнено новітні літературні дані щодо ролі ацилгомосеринлактонів (АГЛ) — сигнальних молекул бактеріального походження — у регуляції росту і розвитку рослин, формуванні стресостійкості до біотичних і абіотичних стресів. АГЛ синхронізують індивідуальні клітинні геноми, забезпечують дистанційний сигналінг між бактеріями-колонізаторами фітосфери, що дає популяції змогу реагувати на зовнішні сигнали і встановлювати симбіотичні або антагоністичні відносини з рослиною-хазяїном. Регулювання функцій ризосфери — найбільш динамічного сайта взаємодії рослини й асоційованої з нею мікрофлори — за участю АГЛ набуває особливого значення при розробці нових біотехнологічних підходів, спрямованих на підвищення врожайності та стресостійкості аграрних культур. Останні дослідження продемонстрували прямі (спрямовані на рослини) і непрямі (спрямовані на мікрофлору ризосфери) ефекти AГЛ. Доведено, що AГЛ-праймування індукує посилення росту рослин, підвищення вмісту фотосинтетичних пігментів, зміни балансу ендогенних фітогормонів, впливає на формування механізмів захисту, змінює архітектоніку коренів, впливає на продихову провідність, відкладання калози тощо. Оскільки АГЛ відповідають вимогам інтенсивного органічного землеробства, їх розглядають як перспективні екологічні фітостимулятори і фітомодулятори, що здатні підвищити кількість і якість сільськогосподарської продукції.
Ключові слова: ацилгомосеринлактони, quorum sensing, АГЛ-сигналінг, праймування, стійкість, біотехнологія
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