Genome-Wide Identification and Characterization of the BZR Transcription Factor Gene Family in Leymus chinensis

Genes, Journal Year: 2025, Volume and Issue: 16(2), P. 155 - 155

Published: Jan. 26, 2025

Background/Objectives: The BZR gene family, a critical transcription factor in the brassinosteroid (BR) signaling pathway, regulates plant growth and development. Despite its significance, family Leymus chinensis, valuable forage grass renowned for stress tolerance nutritional quality, remains uncharacterized, functional roles are largely unexplored. Methods: Employing advanced bioinformatics tools, we conducted genome-wide survey to identify members of L. chinensis. Phylogenetic analyses were performed classify these genes into distinct clades, while structure conserved motif assessed their evolutionary conservation potential regulatory mechanisms. Additionally, transcriptome sequencing was utilized examine expression patterns response simulated animal grazing. Results: Eight LcBZR identified, evenly distributed across all seven chromosomes. analysis categorized three groups, reflecting relationships. Most exhibited highly structures motifs, with promoters enriched cis-acting elements such as G-box ARE. Expression profiling revealed that predominantly expressed key tissues, particularly leaves roots, suggesting involvement physiological processes. Transcriptomic demonstrated grazing modulated levels genes, implicating role promoting cellular elongation division through BR pathway. Conclusions: This study highlights crucial regulating growth, development, environmental stimuli, providing foundational basis understanding molecular mechanisms BR-mediated development adaptation.

Language: Английский

Regulation of Exogenous Strigolactone on Storage Substance Metabolism and Endogenous Hormone Levels in the Early Germination Stage of Rice Seeds Under Salt Stress

Antioxidants, Journal Year: 2024, Volume and Issue: 14(1), P. 22 - 22

Published: Dec. 27, 2024

Salt stress inhibits rice seed germination. Strigolactone (GR24) plays a vital role in enhancing plant tolerance against salt stress. However, GR24's impact on the metabolism of stored substances and endogenous hormones remains unclear. This study investigated exogenous GR24 during early stages germination under The results showed that significantly reduced rate, potential, index, radicle length, germ fresh dry weights Pre-treatment (1.2 μmol L-1 GR24) inhibition seedling growth. promoted decomposition starch by activities α-amylase, β-amylase, total amylase improved levels soluble sugars proteins conversion rate effectively enhanced superoxide dismutase (SOD), catalase (CAT), ascorbate peroxidase (APX); increased ascorbic acid (ASA) glutathione (GSH) levels; malondialdehyde (MDA) content. oxidative damage Furthermore, contents strigolactones (SLs), auxin (IAA), gibberellin (GA3), cytokinin (CTK) as well IAA/ABA, CTK/ABA, GA/ABA, SL/ABA ratios abscisic (ABA) levels. current findings indicate mitigates adverse regulating antioxidant enzyme activity hormone balance.

Language: Английский