The Crosstalk between Cytokinin and Auxin Signaling Pathways in the Control of Natural Senescence of Arabidopsis thaliana Leaves
| العنوان: | The Crosstalk between Cytokinin and Auxin Signaling Pathways in the Control of Natural Senescence of Arabidopsis thaliana Leaves |
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| المؤلفون: | V. Yu. Shtratnikova, Victor V. Kusnetsov, M. N. Danilova, N. V. Kudryakova, A. V. Klepikova, A. S. Doroshenko |
| المصدر: | Russian Journal of Plant Physiology. 67:1028-1035 |
| بيانات النشر: | Pleiades Publishing Ltd, 2020. |
| سنة النشر: | 2020 |
| مصطلحات موضوعية: | 0106 biological sciences, 0301 basic medicine, chemistry.chemical_classification, Senescence, fungi, Mutant, food and beverages, Plant Science, Biology, biology.organism_classification, 01 natural sciences, Cell biology, Transcriptome, 03 medical and health sciences, chemistry.chemical_compound, 030104 developmental biology, chemistry, Auxin, Arabidopsis, Cytokinin, Gene family, Arabidopsis thaliana, 010606 plant biology & botany |
| الوصف: | Natural senescence of leaves is a regular physiological process subjected to a certain genetic program and controlled by various phytohormones. Cytokinins (CKs) play a crucial role in the leaf-senescence control being negative regulators of this process. We previously reported on the prolonged vegetative growth and the development of a double knockout ahk2ahk3 mutant of Arabidopsis thaliana Heynh. (L.) for the genes encoding CK receptors. According to the data of the transcriptomic analysis and real-time RT‑PCR of selected genes performed in this study, the delay of leaf senescence in ahk2ahk3 mutants is accompanied by enhanced (4–281-fold) expression of the group of SAUR (small auxin-up RNA) genes encoding auxin response proteins and by upregulation of the SSPP (senescence-suppressed protein phosphatase) gene, whose expression level significantly (137-fold) exceeded that in a wild-type transcriptome. Thus, it is quite possible that under significant inhibition of the CK signaling leaf senescence in Arabidopsis plants regulated via a compensatory mechanism connected with changes in the expression of the SAUR gene family and a certain pool of genes related to the auxin transport and signaling. |
| تدمد: | 1608-3407 1021-4437 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::998fec246db9a85e3f6d8f425a5bd180 https://doi.org/10.1134/s1021443720060035 |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi...........998fec246db9a85e3f6d8f425a5bd180 |
| قاعدة البيانات: | OpenAIRE |
Find this article in full text from Springer Verlag. | تدمد: | 16083407 10214437 |
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