Metabolome and transcriptome analyses for explore heat stress responses and adaptation mechanisms in Rhododendron henanense subsp. lingbaoense.

ABSTRACT: In this study, we aimed to investigate the heat tolerance mechanism in Rhododendron henanense subsp. lingbaoense (Rhl). Rhl seedlings were treated at 40℃ (RLH), 32℃ (RLM), and 24℃ (RLC), and the changes in transcriptome and metabolome were compared. Overall, 78 differentially expressed metabolites were detected, and 8450 differentially expressed genes (DEGs) were identified. KEGG analysis revealed that the DEGs in RLH vs. RLC were mainly enriched in photosynthesis, secondary metabolic biosynthesis, and flavonoid biosynthesis. Most genes encoding glutathione-S-transferase were upregulated, whereas genes related to heat shock proteins were significantly downregulated. 31 genes related to photosynthesis were significantly upregulated (P-value < 0.001). It was speculated that these DEGs are re

SUBMITTER: Li Y 

PROVIDER: S-EPMC11877896 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature