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Effect of Cytokinin and Auxin Treatments on Morphogenesis, Terpenoid Biosynthesis, Photosystem Structural Organization, and Endogenous Isoprenoid Cytokinin Profile in Artemisia alba Turra In Vitro
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SYSNO ASEP 0489590 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Effect of Cytokinin and Auxin Treatments on Morphogenesis, Terpenoid Biosynthesis, Photosystem Structural Organization, and Endogenous Isoprenoid Cytokinin Profile in Artemisia alba Turra In Vitro Author(s) Danova, K. (BG)
Motyka, Václav (UEB-Q) RID, ORCID
Todorova, M. (BG)
Trendafilova, A. (BG)
Krumova, S. (BG)
Dobrev, Petre (UEB-Q) RID, ORCID
Andreeva, T. (DE)
Oreshkova, T. (BG)
Taneva, S. (BG)
Evstatieva, L. (BG)Number of authors 10 Source Title Journal of Plant Growth Regulation. - : Springer - ISSN 0721-7595
Roč. 37, č. 2 (2018), s. 403-418Number of pages 16 s. Language eng - English Country US - United States Keywords Artemisia alba Turra in vitro ; Cis- and trans-zeatin ; Endogenous cytokinins ; Photosystem II and thylakoid morphology ; Plant growth regulators ; Terpenoid profile of the essential oil Subject RIV EF - Botanics OECD category Plant sciences, botany R&D Projects GA16-14649S GA ČR - Czech Science Foundation (CSF) Institutional support UEB-Q - RVO:61389030 UT WOS 000431420000006 EID SCOPUS 85027688026 DOI 10.1007/s00344-017-9738-y Annotation Developmental pattern modification in essential oil bearing Artemisia alba Turra was obtained by exogenous plant growth regulator (PGRs) treatments in vitro. Enhanced rooting (in PGR-free and auxin-treated plants) led to elevation of the monoterpenoid/sesquiterpenoid ratio in the essential oils of aerials. On the contrary, root inhibition and intensive callusogenesis [combined cytokinin (CK) and auxin treatments] reduced this ratio more than twice, significantly enhancing sesquiterpenoid production. Both morphogenic types displayed sesquiterpenoid domination in the underground tissues, which however differed qualitatively from the sesquiterpenoids of the aerials, excluding the hypothesis of their shoot-to-root translocation and implying the possible role of another signaling factor, affecting terpenoid biosynthesis . Inhibited rooting also resulted in a significant drop of endogenous isoprenoid CK bioactive-free bases and ribosides as well as CK N-glycoconjugates and in decreased trans-zeatin (transZ):cis-zeatin (cisZ) ratio in the aerials. Marked impairment of the structural organization of the photosynthetic apparatus and chloroplast architecture were also observed in samples with suppressed rooting. It is well known that in the plant cell monoterpenoid and transZ-type CKs biogenesis are spatially bound to plastids, while sesquiterpenoid and cisZ production are compartmented in the cytosol. In the present work, interplay between the biosynthesis of terpenoids and CK bioactive free bases and ribosides in A. alba in vitro via possible moderation of chloroplast structure has been hypothesized. Workplace Institute of Experimental Botany Contact David Klier, knihovna@ueb.cas.cz, Tel.: 220 390 469 Year of Publishing 2019
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