uzakuescУченые записки Казанского университета. Серия Естественные наукиUchenye Zapiski Kazanskogo Universiteta Seriya Estestvennye Nauki2542-064X2500-218XKazan (Volga Region) Federal University10.26907/2542-064X.2024.2.297-311uzakuesc-122Research ArticleСтатьиВлияние гипертермии на изменение длины теломер растений Arabidopsis thalianaEffects of Hyperthermia on Telomere Length Changes in Arabidopsis thaliana PlantsАгабекянИ. А.AgabekianI. A.

Агабекян Инна Андрониковна, младший научный сотрудник НИЛ «Агробиоинженерия», Институт фундаментальной медицины и биологии

ул. Кремлевская, д. 18, г. Казань, 420008 

Kazan, 420008 

agabekian.inna@gmail.comСабаеваД. Ю.SabaevaD. Y.

Сабаева Диана Юрьевна, лаборант НИЛ «Агробиоинженерия», Институт фундаментальной медицины и биологии

ул. Кремлевская, д. 18, г. Казань, 420008

Kazan, 420008 

diana.sabayeva@yandex.ruАбдулкинаЛ. Р.AbdulkinaL. R.

Абдулкина Лилия Ринатовна, кандидат биологических наук, старший научный сотрудник НИЛ «Агробиоинженерия», Институт фундаментальной медицины и биологии

ул. Кремлевская, д. 18, г. Казань, 420008

Kazan, 420008 

nigmatullinalili@mail.ruКазанский (Приволжский) федеральный университетРоссияKazan Federal UniversityRussian Federation2024090720241662297311Copyright © Агабекян И.А., Сабаева Д.Ю., Абдулкина Л.Р., 20242024Агабекян И.А., Сабаева Д.Ю., Абдулкина Л.Р.Agabekian I.A., Sabaeva D.Y., Abdulkina L.R.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://uzakuesc.elpub.ru/jour/article/view/122

Теломеры – это высококонсервативные нуклеопротеиновые структуры, которые участвуют в защитных процессах эукариотических организмов. Различные биотические и абиотические факторы могут влиять на изменение длины теломер, в том числе и стрессоры окружающей среды. Растения из-за прикрепленного образа жизни чаще всего подвергаются различным экологическим стрессам. В литературе практически отсутствуют данные о влиянии абиотических факторов на изменение длины теломер растений. Поэтому в работе оценено влияние теплового стресса на длину теломер растений Arabidopsis thaliana. Измерение длины теломер растений на отдельных хромосомных плечах показало, что гипертермия при 42 °С влияет на длину теломер некоторых хромосомных плеч растений дикого типа A. thaliana, а также на некоторые длинные теломеры нокаут-мутанта по гену OLI5/RPL5A. Показано, что при воздействии высокой температуры на растения происходит укорачивание длины теломер, причем чем длиннее теломеры, тем больше влияние стресса на изменение их длины. Это позволяет предполагать, что сложная регуляция длины теломер может быть связана с воздействием стрессоров окружающей среды.

Telomeres are highly conserved nucleoprotein structures involved in the defense mechanisms of eukaryotic organisms. Their length depends on a variety of biotic and abiotic factors, such as environmental stressors. Being stationary, plants are particularly susceptible to environmental stresses. This article explores the effects of heat stress on telomere length in Arabidopsis thaliana. Telomere length was measured for individual chromosome arms. It was shown that hyperthermia at 42 °C altered telomere length in some chromosome arms of the wild-type A. thaliana plants, as well as in the long telomeres of the knockout mutants for the gene OLI5/RPL5A. The high temperatures caused the telomeres to become shorter, with the longer telomeres showing a stronger response to the stress. This suggests that the complex regulation of telomere length may be associated with exposure to environmental stressors.

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The authors declare that there are no conflicts of interest present.