ArticlePlant cell reports2022
Analyses of Botrytis cinerea-responsive LrWRKY genes from Lilium regale reveal distinct roles of two LrWRKY transcription factors in mediating responses to B. cinerea.
Article in Plant cell reports, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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9 citing papers in PubMed.
- A comprehensive review of physiological and molecular responses to stress of lilies (genusHorticulture research · 2026Article
- Advances in WRKY regulation of immune responses in medicinal plants.Frontiers in plant science · 2025Review
- Obtaining and Characterization of an Interspecific Hybrid betweenPlants (Basel, Switzerland) · 2024Article
- Colour-analyzer: a new dual colour model-based imaging tool to quantify plant disease.Plant methods · 2024Article
- Recent advances in functional assays of WRKY transcription factors in plant immunity against pathogens.Frontiers in plant science · 2024Review
- Establishment of Highly Efficient Plant Regeneration, Callus Transformation and Analysis ofPlants (Basel, Switzerland) · 2023Article
- Advances in the Research on Plant WRKY Transcription Factors Responsive to External Stresses.Current issues in molecular biology · 2023Review
- Candidate gene discovery ofFrontiers in plant science · 2023Article
- Transcriptome Analysis Reveals that Exogenous Melatonin ConfersFrontiers in genetics · 2022Article
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Abstract
key messageBotrytis cinerea induced expression of 15 LrWRKY genes; overexpression of LrWRKY39 and LrWRKY41a increased resistance and susceptibility, respectively, to B. cinerea in a manner related to SA and JA signaling. WRKY transcription factors (TFs), a large family, play important roles in coping with biotic stresses. Lilium regale Wilson is a lily species with strong resistance to fungi and viruses; however, functional characterization of LrWRKY TFs remains very limited. Here, a total of 25 LrWRKY members were identified from the L. regale transcriptome, and 15 LrWRKY genes were significantly induced by Botrytis cinerea. Based on their structural features, B. cinerea-responsive LrWRKY genes could be classified into six subgroups (Groups I, IIa-d, and III), and sequence alignment showed that 12 LrWRKY proteins have a well-conserved WRKYGQK domain, while 3 LrWRKYs have a variant sequence (WRKYGKK or WRMYEQK). Quantitative RT-PCR analysis revealed tissue-specific expression of B. cinerea-responsive LrWRKY genes and their expression profiles in response to defense-related hormones salicylic acid (SA), methyl jasmonate (MeJA) and hydrogen peroxide. LrWRKY39 and LrWRKY41a, which encode two LrWRKY TFs with different three-dimensional (3D) models of the WRKY domain, were cloned, and both proteins were targeted to the nucleus. Overexpression of LrWRKY39 and LrWRKY41a in Arabidopsis thaliana increased the resistance and susceptibility to B. cinerea, respectively, compared to the wild type. Similar results were also observed in tobacco and lily (L. longiflorum 'Snow Queen') by transient transformation analyses. Their distinct roles may be related to changes in the transcript levels of SA-/JA-responsive genes. Our results provide new insights into B. cinerea-responsive LrWRKY members and the biological functions of two different 3D models of LrWRKY TFs in defense responses to B. cinerea infection.
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