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Domestication has altered the ABA and gibberellin profiles in developing pea seeds
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SYSNO ASEP 0575458 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Domestication has altered the ABA and gibberellin profiles in developing pea seeds Author(s) Balarynová, J. (CZ)
Klčová, B. (CZ)
Tarkowská, Danuše (UEB-Q) RID, ORCID
Turečková, Veronika (UEB-Q) RID, ORCID
Trněný, O. (CZ)
Špundová, M. (CZ)
Ochatt, S. (TF)
Smýkal, P. (CZ)Number of authors 8 Article number 25 Source Title Planta. - : Springer - ISSN 0032-0935
Roč. 258, č. 2 (2023)Number of pages 16 s. Language eng - English Country DE - Germany Keywords Desiccation ; Legume ; Maturation ; Phytohormones ; Pigmentation ; Seed-coat OECD category Biochemistry and molecular biology R&D Projects EF16_019/0000738 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) EF16_019/0000827 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Method of publishing Open access Institutional support UEB-Q - RVO:61389030 UT WOS 001013202600001 EID SCOPUS 85162837438 DOI 10.1007/s00425-023-04184-2 Annotation Although the role of abscisic acid (ABA) and gibberellins (GAs) interplay has been extensively studied in Arabidopsis and cereals models, comparatively little is known about the effect of domestication on the level of phytohormones in legume seeds. In legumes, as in other crops, seed dormancy has been largely or entirely removed during domestication. In this study, we have measured the endogenous levels of ABA and GAs comparatively between wild and domesticated pea seeds during their development. We have shown that wild seeds contained more ABA than domesticated ones, which could be important for preparing the seeds for the period of dormancy. ABA was catabolised particularly by an 8 & PRIME,-hydroxylation pathway, and dihydrophaseic acid was the main catabolite in seed coats as well as embryos. Besides, the seed coats of wild and pigmented cultivated genotypes were characterised by a broader spectrum of bioactive GAs compared to non-pigmented domesticated seeds. GAs in both seed coat and embryo were synthesized mainly by a 13-hydroxylation pathway, with GA(29) being the most abundant in the seed coat and GA(20) in the embryos. Measuring seed water content and water loss indicated domesticated pea seeds & PRIME, desiccation was slower than that of wild pea seeds. Altogether, we showed that pea domestication led to a change in bioactive GA composition and a lower ABA content during seed development. Workplace Institute of Experimental Botany Contact David Klier, knihovna@ueb.cas.cz, Tel.: 220 390 469 Year of Publishing 2024 Electronic address https://doi.org/10.1007/s00425-023-04184-2
Number of the records: 1