Počet záznamů: 1
Hormonal and transcriptomic regulation of drought adaptation in barley roots and leaves
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SYSNO ASEP 0643680 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Hormonal and transcriptomic regulation of drought adaptation in barley roots and leaves Tvůrce(i) Collin, A. (PL)
Pacwa-Plociniczak, M. (PL)
Płociniczak, T. (PL)
Novák, Ondřej (UEB-Q) RID, ORCID, SAI
Marzec, M. (PL)
Guo, W. (US)
Simpson, G. G. (GB)
Daszkowska-Golec, A. (PL)Celkový počet autorů 8 Číslo článku 16368 Zdroj.dok. Scientific Reports. - : Nature Publishing Group - ISSN 2045-2322
Roč. 15, č. 1 (2025)Poč.str. 14 s. Jazyk dok. eng - angličtina Země vyd. GB - Velká Británie Klíč. slova stress tolerance ; abscisic-acid ; growth ; aba ; impact ; Alternative splicing (AS) ; Barley ; Drought ; Hormones ; Metatranscriptomics ; Transcriptomics Obor OECD Plant sciences, botany Způsob publikování Open access Institucionální podpora UEB-Q - RVO:61389030 UT WOS 001488137600004 EID SCOPUS 105004667794 DOI https://doi.org/10.1038/s41598-025-01590-2 Anotace Drought poses a significant threat to global crop productivity and food security. In this study, we aimed to elucidate the impact of drought on transcriptional regulation and alternative splicing in barley (Hordeum vulgare), and to determine whether these transcriptomic alterations correlate with changes in hormonal profiles. We hypothesized that drought stress induces extensive reprogramming of gene expression, including alternative splicing events, and that these molecular responses are accompanied by tissue-specific shifts in hormone levels, ultimately underpinning adaptive responses in both leaves and roots. To test this, we performed RNA-seq and comprehensive hormone profiling on leaves and roots sampled at 25 days after planting under both optimal and drought conditions. Our analysis identified over 6,655 differentially expressed genes, with a substantial subset exhibiting differential alternative splicing. In leaves, drought primarily downregulated photosynthesis-related genes while upregulating pathways involved in water stress and abscisic acid (ABA) signaling. In contrast, roots displayed broader metabolic adjustments and significant isoform switching. Hormone analysis revealed marked ABA accumulation, particularly in roots, alongside organ-specific modulation of jasmonates and auxins. A limited assessment of the rhizosphere microbial community revealed low transcript abundance, underscoring the primacy of intrinsic plant responses. Collectively, these findings provide valuable insights into the multilayered adaptive strategies of barley under drought stress. Pracoviště Ústav experimentální botaniky Kontakt David Klier, knihovna@ueb.cas.cz, Tel.: 220 390 469 Rok sběru 2026 Elektronická adresa https://doi.org/10.1038/s41598-025-01590-2
Počet záznamů: 1