ArticleBMC plant biology2025
ROS homeostasis and cell wall biosynthesis pathway are involved in female inflorescence development of birch (Betula platyphylla).
Article in BMC plant biology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed.
- Genome-wide characterization of DUB genes in Betula platyphylla and BpUBP3 function in pollen tube growth.Plant molecular biology · 2026Article
- Bulk RNA-seq datasets analysis integration identifies robust drought-responsive genes and functional networks inFrontiers in bioinformatics · 2026Article
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Authors and funding
10 authors.
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Abstract
backgroundFemale inflorescence development from megasporogenesis to gametogenesis, and mature female gametophyte (FG), is a complex and important event in plant sexual reproduction. However, how this essential developmental process is regulated in birch remains obscure. This study conducted extensive morphological and transcriptomic analyses to reveal possible regulatory mechanisms during birch female inflorescence development.
resultsHistological analyses showed that birch exhibits a Polygonum-type embryo sac. During early ovule development, the ovule primordium emerges and subsequently differentiates into the archesporial cell (ASC), initiating megasporogenesis. The megaspore mother cell (MMC) then undergoes meiosis, generating a functional megaspore (FM) that develops into the mature embryo sac (MES). Transcriptomic profiling revealed upregulation of reactive oxygen species (ROS)-scavenging genes, including BpGSTU17, BpGSTU19, BpAPX1, BpPRXIIE-1, BpSODCP, and BpFDX3, at the MMC stage. At the MES stage, genes involved in both ROS synthesis and scavenging, such as BpACX, BpCuAOγ1, BpGLO1, BpRBOHH, BpUOX2, BpFSD2, BpCAT3, BpGRX, BpNRX, and BpTRX, were significantly expressed. BpPAL, BpC4H, BpCSE, BpCoMT, BpCCoAOMT, BpCAD, BpF5H, BpLAC, BpXTH23, and BpCESA, genes involved in the cell wall biosynthesis pathways including lignin, cellulose, hemicellulose and pectin, were also upregulated.
conclusionOur results suggest that ROS homeostasis affects the process of birch megasporogenesis. Genes related to ROS signaling and cell wall synthesis participate in embryo sac maturation.
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