The high concentrations of abscisic, jasmonic, and salicylic acids produced under long days do not accelerate flowering in Chenopodium ficifolium 459

0561991 - ÚEB 2023 RIV IE eng J - Journal Article
Gutiérrez-Larruscain, David - Krüger, Manuela - Abeyawardana, Oushadee A.J. - Belz, Claudia - Dobrev, Petre - Vaňková, Radomíra - Eliášová, Kateřina - Vondráková, Zuzana - Juříček, Miloslav - Štorchová, Helena
The high concentrations of abscisic, jasmonic, and salicylic acids produced under long days do not accelerate flowering in Chenopodium ficifolium 459.
Plant Science. Roč. 320, JUL (2022), č. článku 111279. ISSN 0168-9452. E-ISSN 1873-2259
R&D Projects: GA ČR(CZ) GA19-01639S; GA MŠMT(CZ) EF16_019/0000738
Institutional support: RVO:61389030
Keywords : Abscisic acid * Chenopodium ficifolium * Flowering * Jasmonic acid * Salicylic acid * Transcriptome
OECD category: Plant sciences, botany
Impact factor: 5.2, year: 2022
Method of publishing: Open access
https://doi.org/10.1016/j.plantsci.2022.111279

The survival and adaptation of angiosperms depends on the proper timing of flowering. The weedy species Chenopodium ficifolium serves as a useful diploid model for comparing the transition to flowering with the important tetraploid crop Chenopodium quinoa due to the close phylogenetic relationship. The detailed transcriptomic and hormonomic study of the floral induction was performed in the short-day accession C. ficifolium 459. The plants grew more rapidly under long days but flowered later than under short days. The high levels of abscisic, jasmonic, and salicylic acids at long days were accompanied by the elevated expression of the genes responding to oxidative stress. The increased concentrations of stress-related phytohormones neither inhibited the plant growth nor accelerated flowering in C. ficifolium 459 at long photoperiods. Enhanced content of cytokinins and the stimulation of cytokinin and gibberellic acid signaling pathways under short days may indicate the possible participation of these phytohormones in floral initiation. The accumulation of auxin metabolites suggests the presence of a dynamic regulatory network in C. ficifolium 459.
Permanent Link: https://hdl.handle.net/11104/0334416