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The Expression Characteristics and Potential Functions of Heat Shock Factors in Diatom Phaeodactylum tricornutum

Phyton-International Journal of Experimental Botany 2024年第10期93卷 2583-2596页

作者： Yanhuan Lin Jiaxin Feng Hao Fang Wei Huang kanglie guo Xiyan Liu Shuqi Wang Xiaojuan Liu Zhangzhou Institute of Technology Zhangzhou363000China Guangdong Provincial Key Laboratory of Marine Biotechnology and Guangdong Provincial Key Laboratory of Marine Disaster Prediction and Prevention College of SciencesShantou UniversityShantou515063China

Heat shock transcription factor(HSF)are essential regulators of heat shock protein(HSP)gene expression in plants and algae,contributing to their resilience against biotic and abiotic ***,the localization,structure,phylogenetic relationship,and characteristics of PtHSF genes in microalgae,especially in diatom Phaeodactylum tricornutum,remain largely *** study presents a comprehensive analysis of the PtHSF gene family in ***.A genome-wide analysis identified 68 PtHSF genes,which were classified into two distinct subfamilies:traditional and *** and structure analyses revealed evidence of multiple duplication events within the PtHSF gene *** profiling revealed diurnal patterns,with 34 genes being downregulated during the light period and upregulated during the dark period,while 19 genes exhibited the opposite *** findings suggest that PtHSF genes may have specialized functions during the diurnal cycle and play a crucial role in maintaining cellular homeostasis in response to various ***,PtHSF16,30,and 43 genes exhibited higher expression levels,suggesting their potential *** study provides a valuable foundation for future investigations into the specific functions of HSFs under different stress conditions and their regulatory mechanisms in *** and other microalgae.

关键词： Diurnal cycle heat shock factor diatom cellular homeostasis differentially expressed gene

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