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Identification and characterization of key circadian clock genes of tobacco hairy roots: putative regulatory role in xenobiotic metabolism

Sosa Alderete, Lucas Gastón et al · Springer Heidelberg · 2018

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Author / responsible party
Sosa Alderete, Lucas Gastón et al
Publisher
Springer Heidelberg
Year
2018
ISSN
1597-1608
ISSN
1597-1608
Language
English

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The circadian clock is an endogenous system that allows organisms to daily adapt and optimize their physiology and metabolism. We studied the key circadian clock gene (CCG) orthologs in Nicotiana tabacum seedlings and in hairy root cultures (HRC). Putative genes involved in the metabolism of xenobiotic compounds (MXC) were selected and their expression profiles were also analyzed. Seedlings and HRC displayed similar diurnal variations in the expression profiles for the CCG examined under control conditions (CC). MXC-related genes also showed daily fluctuations with specific peaks of expression. However, when HRC were under phenol treatment (PT), the expression patterns of the clock and MXC-related genes were significantly affected. In 2-week-old HRC, PT downregulated the expression of NtLHY, NtTOC1, and NtPRR9 while NtFKF1 and NtGI genes were upregulated by phenol. In 3-week-old HRC, PT also downregulated the expression of all CCG analyzed and NtTOC1 was the most affected. Following PT, the expression of the MXC-related genes was upregulated or displayed an anti-phasic expression profile compared to the expression under CC. Our studies thus provide a glimpse of the circadian expression of clock genes in tobacco and the use of HRC as a convenient system to study plant responses to xenobiotic stresses. Fil: Sosa Alderete, Lucas Gastón. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Biología Molecular; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Guido, Mario Eduardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Química Biológica de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Centro de Investigaciones en Química Biológica de Córdoba; Argentina

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APA 7

Sosa Alderete, L. G. E. A. (2018). Identification and characterization of key circadian clock genes of tobacco hairy roots: putative regulatory role in xenobiotic metabolism. http://hdl.handle.net/11336/72816

MLA

Sosa Alderete, Lucas Gastón et al. "Identification and characterization of key circadian clock genes of tobacco hairy roots: putative regulatory role in xenobiotic metabolism." 2018. http://hdl.handle.net/11336/72816.

Chicago

Sosa Alderete, Lucas Gastón et al. 2018. "Identification and characterization of key circadian clock genes of tobacco hairy roots: putative regulatory role in xenobiotic metabolism.". http://hdl.handle.net/11336/72816.

Harvard

Sosa Alderete, L. G. E. A. 2018, Identification and characterization of key circadian clock genes of tobacco hairy roots: putative regulatory role in xenobiotic metabolism, Springer Heidelberg, available at: http://hdl.handle.net/11336/72816 [Accessed 5 Aug. 2026].

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Title
Identification and characterization of key circadian clock genes of tobacco hairy roots: putative regulatory role in xenobiotic metabolism
Author / contributors
Sosa Alderete, Lucas Gastón et al
Publisher
Springer Heidelberg
Publication year
2018
ISSN
1597-1608
ISSN
1597-1608
Language
English

Subjects

Explore related resources through these subjects.

Circadian Clock; Phenol Treatment; Tobacco Hairy Roots; Xenobiotic Metabolism; https://purl.org/becyt/ford/1.6; https://purl.org/becyt/ford/1
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