References

izvestiiatimacad

Известия Тимирязевской сельскохозяйственной академии

IZVESTIYA OF TIMIRYAZEV AGRICULTURAL ACADEMY

0021-342X

ФГБОУ ВО РГАУ-МСХА имени К.А. Тимирязева

10.34677/0021-342X-2019-3-80-94

izvestiiatimacad-77

Research Article

ФИЗИОЛОГИЯ РАСТЕНИЙ, МИКРОБИОЛОГИЯ

PLANT PHYSIOLOGY, MICROBIOLOGY

Регуляция роста и пространственной ориентации боковых корней Arabidopsis thaliana L

Regulating growth and spatial orientation of lateral roots of Arabidopsis thaliana L

Кривобок

А. С.

Krivobok

A. S.

nuxin@yandex.ru

Бибикова

Т. Н.

Bibikova

T. N.

tbibik@yahoo.com

Государственный научный центр Российской Федерации -Институт медико-биологических проблем РАНРоссияState Research Center of the Russian Federation -Institute for Biomedical Problems of the Russian Academy of SciencesRussian Federation

Московский государственный университет им. М.В. ЛомоносоваРоссияMoscow Lomonosov State UniversityRussian Federation

2019

17112022

038094

2022

Кривобок А.С., Бибикова Т.Н.

Krivobok A.S., Bibikova T.N.

Данная работа распространяется под лицензией Creative Commons Attribution 4.0.

This work is licensed under a Creative Commons Attribution 4.0 License.

https://izvestiia.timacad.ru/jour/article/view/77

Боковые корни играют существенную роль в формировании разветвленной корневой сети, а значит определяют потенциал растения в поиске и потреблении ресурсов, механическом креплении в почве. В отличие от инициации, развитие боковых корней после их выхода из главного корня стало объектом рассмотрения ученых сравнительно недавно. На основании длины, угла по отношению к вектору гравитации и количества клеток в колумелле выделяют 6 стадий развития бокового корня. Как и в случае с главным корнем, ведущую роль в гомеостазе боковых корней несут растительные гормоны - ауксин и цитокинин. Но на отдельных стадиях развития отклики боковых корней на действие ауксина, цитокинина и абсцизовой кислоты значительно отличаются от известных процессов в главном корне, и оказывают существенное влияние на архитектуру корневой системы. Различия в организации эндогенной регуляции главного и боковых корней наглядно проявляются в их индивидуальной реакции на доступность отдельных элементов минерального питания и засоление. В данном обзоре собраны актуальные данные касательно скорости роста, ориентации и внутренних механизмов регуляции роста и развития боковых корней модельного растения Arabidopsis thaliana.

Lateral roots play an important role in the formation of an extensive rootage, and therefore determine plant’s potential in search and consumption of water and mineral nutrients and its mechanical attachment to the soil. In contrast to initiation, the development of lateral roots after their emergence from the main root has relatively recently become a separate object of scientific research. Based on the length, an angle relative to the gravity vector, and the number of cells in the columella, six stages of lateral root development have been distinguished. As in the case of the main root, the plant hormones, auxin and cytokinin, play a leading role in lateral root homeostasis. However, at different development stages, the responses of the lateral roots to auxin, cytokinin and abscisic acid differ significantly from the responses of the main root and have a significant influence on the rootage. Differences in the organization of endogenous regulation of the main and lateral roots are clearly manifested in the individual response of the main root and lateral roots to the availability of certain elements of mineral nutrition and salt stress. This review discusses relevant data on the growth rate, orientation, and mechanisms regulating growth and development of lateral roots of the Arabidopsis thaliana model plant.

боковые корниGSAауксинцитокининабсцизовая кислотаArabi-dopsis thalianalateral rootsGSAauxincytokininabscisic acidArabidopsis thaliana

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