{"database":"GEO","file_versions":[{"headers":{"Content-Type":["application/json"]},"body":{"files":{"Other":["ftp://ftp.ncbi.nlm.nih.gov/geo/series/GSE338nnn/GSE338282/"]},"type":"primary"},"statusCode":"OK","statusCodeValue":200}],"scores":null,"additional":{"omics_type":["Transcriptomics"],"species":["Tradescantia spathacea"],"gds_type":["Expression profiling by high throughput sequencing"],"full_dataset_link":["https://www.ncbi.nlm.nih.gov/geo/query/acc.cgi?acc=GSE338282"],"repository":["GEO"],"entry_type":["GSE"],"additional_accession":[]},"is_claimable":false,"name":"Survival wisdom of Tradescantia spathacea Sw: Trade-off be-tween anthocyanin mediated photoprotection and photosyn-thetic capacity under high light stress","description":"Light heterogeneity shapes plant survival, yet how shade-tolerant species balance photoprotection and photosynthesis under changing light remains unclear. Tradescantia spathacea Sw, with green upper and purple-red lower leaf surfaces, exhibits both shade tolerance and high-light acclimation, but the functional specialization of its leaf sides and the underlying trade-off mechanisms are poorly understood. This study exposed T. spathacea to 100% (FL) and 30% (LL) sunlight for 2 years and systematically assessed light adaptation mechanisms through morphological observation, physiological and biochemical detection, and transcriptomic analyses. Results showed that under FL conditions, leaf morphology underwent adaptive remodeling. Anthocyanins accumu-lated specifically in the lower side, thermal dissipation and antioxidant systems were fully activated, while photosynthetic capacity was markedly inhibited, reflecting a survival-priority strategy. Under LL conditions, leaves became broader and flatter, chlorophyll content increased, and the expression of photosynthesis-related genes was upregulated. This enhanced light capture and carbon assimilation efficiency, leading to significantly greater biomass accumulation, reflecting a growth-oriented resource al-location strategy. Transcriptomic and physiological data consistently showed that FL upregulated anthocyanin biosynthetic genes, while LL activated photosystem and photosynthetic electron transport genes. T. spathacea achieves a flexible photoadapta-tion strategy across different light environments through leaf surface functional spe-cialization and an anthocyanin mediated trade-off between photoprotection and pho-tosynthesis.","dates":{"publication":"2026/07/20"},"accession":"GSE338282","cross_references":{"GSM":["GSM9870552","GSM9870551","GSM9870554","GSM9870553","GSM9870555","GSM9870550"],"GPL":["37203"],"GSE":["338282"],"taxon":["Tradescantia spathacea"],"PMID":["[42511835]"]}}