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Endogenous cytokinins, auxins, and abscisic acid in red algae from Brazil
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SYSNO ASEP 0359279 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Endogenous cytokinins, auxins, and abscisic acid in red algae from Brazil Author(s) Yokoya, N. S. (BR)
Stirk, W. A. (ZA)
van Staden, J. (ZA)
Novák, Ondřej (UEB-Q) RID, ORCID, SAI
Turečková, Veronika (UEB-Q) RID, ORCID
Pěnčík, Aleš (UEB-Q) ORCID, RID, SAI
Strnad, Miroslav (UEB-Q) RID, ORCIDNumber of authors 7 Source Title Journal of Phycology. - : Wiley - ISSN 0022-3646
Roč. 46, č. 6 (2010), s. 1198-1205Number of pages 8 s. Language eng - English Country US - United States Keywords ENDOGENOUS ; CYTOKININS ; AUXINS ; ABSCISIC ACID ; RED ; ALGAE ; BRAZIL Subject RIV EF - Botanics R&D Projects GA301/08/1649 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z50380511 - UEB-Q (2005-2011) UT WOS 000284854100015 DOI 10.1111/j.1529-8817.2010.00898.x Annotation Endogenous cytokinins (CKs), auxins, and abscisic acid (ABA) were identified and quantified in 11 red algae collected from the Brazilian coast. Seaweed materials were extracted, purified by solid-phase extraction followed by immunoaffinity chromatography, and analyzed by liquid chromatography-tandem mass spectrometry. Isoprenoid CKs were detected in all species, aromatic CKs were not detected in any of the samples. The CK profile of Chondracanthus teedei (Mert. ex Roth) Kütz. was distinct in comparison to other species with para-topolin derivatives detected in low concentrations. The main auxins present in all species were free indole-3-acetic acid and indole-3-acetamide. ABA was present in all species analyzed except for Hypnea nigrescens Grev. ex J. Agardh. No ABA conjugates were detected in any species. These results confirm that plant hormones were common constituents in red seaweeds, with this being the first report of the occurrence of ABA in Rhodophyta. Workplace Institute of Experimental Botany Contact David Klier, knihovna@ueb.cas.cz, Tel.: 220 390 469 Year of Publishing 2011
Number of the records: 1