vestichИзвестия Национальной академии наук Беларуси. Серия химических наукProceedings of the National Academy of Sciences of Belarus, Chemical Series1561-83312524-2342The Republican Unitary Enterprise Publishing House "Belaruskaya Navuka"10.29235/1561-8331-2026-62-3-252-264vestich-1033Research ArticleОБЗОРЫБрассиностероиды в качестве бор-связывающих стероидов растенийBrassinosteroids as boron-binding plant steroidsДембицкийВ. М.DembitskyV. M.

Дембицкий Валерий Михайлович – доктор химических наук, профессор, научный сотрудник

Ленинский пр-т, 47, 119991, Москва 

Dembitsky Valery M. – Dr. Sci. (Chemistry), Professor, Researcher

47, Leninsky prospect, 119991, Moscow

devalery@gmail.comТерентьевА. О.Terent’evA. O.

Терентьев Александр Олегович – академик РАН, доктор химических наук, профессор, директор

Ленинский пр-т, 47, 119991, Москва 

Terent’ev Alexander O. – Academician of the Russian Academy of Sciences, Dr. Sci. (Chemistry), Professor, Director

47, Leninsky prospect, 119991, Moscow

terentev@ioc.ac.ruБаранинС. В.BaraninS. V.

Баранин Сергей Викторович – доктор химических наук, профессор, заведующий лабораторией

Ленинский пр-т, 47, 119991, Москва 

Baranin Sergey V. – Dr. Sci. (Chemistry), Professor, Head of the Laboratory

47, Leninsky prospect, 119991, Moscow

svbar@ioc.ac.ruЖабинскийВ. Н.ZhabinskiiV. N.

Жабинский Владимир Николаевич – член-коррес­пондент НАН Беларуси, доктор химических наук, про­фессор, главный научный сотрудник

ул. В. Ф. Купревича, 5/2, 220084, Минск

Zhabinskii Vladimir N. – Corresponding Member of the National Academy of Sciences of Belarus, Dr. Sci. (Chemistry), Professor, Chief Researcher

5/2, Kup­revich Str., 220084, Minsk

vz@iboch.byИнститут органической химии имени Н. Д. Зелинского Российской академии наукРоссияN. D. Zelinsky Institute of Organic Chemistry of the Russian Academy of SciencesRussian FederationИнститут биоорганической химии Национальной академии наук БеларусиБеларусьInstitute of Bioorganic Chemistry of the National Academy of Sciences of BelarusBelarus202629082026623252264Copyright © Дембицкий В.М., Терентьев А.О., Баранин С.В., Жабинский В.Н., 20262026Дембицкий В.М., Терентьев А.О., Баранин С.В., Жабинский В.Н.Dembitsky V.M., Terent’ev A.O., Baranin S.V., Zhabinskii V.N.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://vestichem.belnauka.by/jour/article/view/1033

Брассиностероиды (БС) представляют собой уникальный класс полигидроксилированных стероид­ных фитогормонов, регулирующих рост, развитие и реакции на стресс у растений. Определяющей и консервативной структурной особенностью всех биологически активных БС является наличие вицинальных 1,2-диольных мотивов, наиболее выраженных в 2α,3α-положениях А-кольца и в 22,23-положениях боковой цепи. Эти цис-диольные функциональные группы придают химические свойства, которые отличают брассиностероиды от всех других основных классов фитогормонов и делают возможной обратимую координацию с соединениями бора. Обобщаются аналитические, химические и физиологические данные, подтверждающие концепцию 1,2-диольных БС как фитогормонов, чувствительных к бору, проводятся параллели между химией образования боронатных производных in vitro и комплексообразованием с бором in vivo, а также предлагается рассматривать координацию с бором в качестве ранее недооцененного регуляторного уровня в биологии брассиностероидов. Интегрируя неорганическую химию с сигнализацией растительных гормонов, данная концепция углубляет наше понимание эволюции, транспорта и функции брассиностероидов и позиционирует 1,2-диольные БС в качестве модельной системы для изучения корегуляции минералов и гормонов у растений.

Brassinosteroids (BRs) constitute a unique class of polyhydroxylated steroidal phytohormones that regulate plant growth, development, and stress responses. A defining and conserved structural feature of all biologically active BRs is in the presence of vicinal 1,2-diol motifs, most prominently at the 2α,3α-positions of the A ring and at the 22,23-positions of the side chain. These cis-diol functionalities impart chemical properties that distinguish brassinosteroids from all other major phytohormone classes and enable reversible coordination with boron species. This review summarizes analytical, chemical, and physiological evidence supporting the concept of 1,2-diol brassinosteroids as boron-responsive phytohormones, highlights parallels between boronate derivatization chemistry and in vivo boron complexation, and proposes boron coordination as a previously underappreciated regulatory layer in brassinosteroid biology. Integrating inorganic chemistry with plant hormone signaling allows improving our understanding of brassinosteroid evolution, transport, and function, and positions 1,2-diol BRs as a model system for mineral–hormone co-regulation in plants.

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