ArticleBMC plant biology2025
Identification and functional characterization of JrbZIP40 in walnut reveals its role in salt and drought stress tolerance in transgenic Arabidopsis seedlings.
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 4 papers.
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Who cites it
4 citing papers in PubMed.
- Genome-wide characterization of the bZIP gene family in Rattus norvegicus and expression profiling analysis during brain development.BMC genomics · 2026Article
- Insights into physiological, biochemical and molecular mechanisms of abiotic stress tolerance in Persian walnut (Juglans regia L.).Protoplasma · 2026Review
- Functional characterization of MhbZIP62 in regulating drought tolerance in apple.Plant cell reports · 2026Article
- Genome-Wide Survey and Expression Profiling of bZIP Transcription Factors inInternational journal of molecular sciences · 2026Article
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18 authors.
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Abstract
backgroundSalt and drought are the primary environmental stress factors that severely threaten plant growth, development, and yield. bZIP transcription factors reportedly play crucial roles in plant responses to both biotic and abiotic stressors. However, the biological function of bZIP transcription factors in oil crops, particularly walnuts, under salt and drought stress remains unclear.
resultsIn this study, members of the walnut bZIP gene family were identified based on the walnut genome Chandler 2.0. Transcriptome data and RT-qPCR results were used to analyze the expression patterns of various JrbZIP genes under biotic and abiotic stress, revealing that JrbZIP40 was strongly induced by both drought and salt stress. Subcellular localization and transcriptional activation assays demonstrated that JrbZIP40 localized to the nucleus and exhibited transcriptional activation activity. Overexpression of JrbZIP40 in transgenic Arabidopsis seedlings significantly enhanced resistance to salt and drought stress. DAP-seq and Dual-luciferase results indicated that JrbZIP40 may bind to the JrHB7 and JrATG8G promoters and activate their expression, contributing to stress resistance.
conclusionsOverall, this study elucidates the regulatory network and biological functions of JrbZIP40 in drought and salt tolerance, providing a theoretical foundation and candidate gene resources for the future use of genetic engineering to improve walnut stress resistance.
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