ArticlePlant biotechnology journal2024
MaHsf24, a novel negative modulator, regulates cold tolerance in banana fruits by repressing the expression of HSPs and antioxidant enzyme genes.
Article in Plant biotechnology journal, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed.
- Apple ZAT11, a C2H2-type zinc finger protein, enhances resistance to Penicillium expansum by affecting jasmonic acid biosynthesis in apple.The New phytologist · 2026Article
- The transcriptional cascade CiERF023Horticulture research · 2026Article
- Engineering climate-resilient horticultural crops: advances in transcriptional regulation, genome editing, and synthetic networks.Horticulture research · 2026Article
- Lily Transcription Factors LlPLATZ1 and LlMYB4 Orchestrate the Homeostasis of Heat Stress Responses via Antagonistic Regulation of LlHSF24.Plant biotechnology journal · 2026Article
- MaHSFA2c modulates high temperature-inhibited chlorophyll breakdown in banana fruit by directly inducing the transcription of the E3 ligase gene MaBAH1.Molecular horticulture · 2026Article
- JAZ2/JAZ4-MYC2.1 module mediates MeJA-induced alleviation of chilling injury in peach fruit (Horticulture research · 2026Article
- Standardized Protocols and Bioinformatic Pipelines for Conducting DAP-seq Experiments in Non-model Plant Crops.Methods in molecular biology (Clifton, N.J.) · 2026Article
- Review
- Expression characteristics ofPlant signaling & behavior · 2025Article
- Recent advances and future directions in banana molecular biology and breeding.Molecular horticulture · 2024Review
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Funding
Abstract
Transcriptional regulation mechanisms underlying chilling injury (CI) development have been widely investigated in model plants and cold-sensitive fruits, such as banana (Musa acuminata). However, unlike the well-known NAC and WRKY transcription factors (TFs), the function and deciphering mechanism of heat shock factors (HSFs) involving in cold response are still fragmented. Here, we showed that hot water treatment (HWT) alleviated CI in harvested banana fruits accomplishing with reduced reactive oxygen species (ROS) accumulation and increased antioxidant enzyme activities. A cold-inducible but HWT-inhibited HSF, MaHsf24, was identified. Using DNA affinity purification sequencing (DAP-seq) combined with RNA-seq analyses, we found three heat shock protein (HSP) genes (MaHSP23.6, MaHSP70-1.1 and MaHSP70-1.2) and three antioxidant enzyme genes (MaAPX1, MaMDAR4 and MaGSTZ1) were the potential targets of MaHsf24. Subsequent electrophoretic mobility shift assay (EMSA), chromatin immunoprecipitation coupled with quantitative PCR (ChIP-qPCR) and dual-luciferase reporter (DLR) analyses demonstrated that MaHsf24 repressed the transcription of these six targets via directly binding to their promoters. Moreover, stably overexpressing MaHsf24 in tomatoes increased cold sensitivity by suppressing the expressions of HSPs and antioxidant enzyme genes, while HWT could recover cold tolerance, maintaining higher levels of HSPs and antioxidant enzyme genes, and activities of antioxidant enzymes. In contrast, transiently silencing MaHsf24 by virus-induced gene silencing (VIGS) in banana peels conferred cold resistance with the upregulation of MaHSPs and antioxidant enzyme genes. Collectively, our findings support the negative role of MaHsf24 in cold tolerance, and unravel a novel regulatory network controlling bananas CI occurrence, concerning MaHsf24-exerted inhibition of MaHSPs and antioxidant enzyme genes.
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