ArticleThe Plant cell2023
Proteasomal degradation of MaMYB60 mediated by the E3 ligase MaBAH1 causes high temperature-induced repression of chlorophyll catabolism and green ripening in banana.
Article in The Plant cell, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.
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30 citing papers in PubMed, 84 citations in OpenAlex.
- MaMPK3-2 Phosphorylating and Stabilizing Transcriptional Repressor MaAS1 by Counteracting MaRNF4-Mediated Ubiquitination During Banana Fruit Ripening.Plant biotechnology journal · 2026Article
- A cool temperature-induced ubiquitination-controlled transcription factor promotes starch degradation and ripening in kiwifruit.Plant communications · 2026Article
- Modified Atmosphere Packaging Delays Senescence and Chlorophyll Degradation by Enhancing Antioxidant Capacity in Postharvest Broccoli.Foods (Basel, Switzerland) · 2026Article
- Characterization and expression analysis of UBC gene family provide insights into the potential roles in pigment biosynthesis in pepper fruit.BMC genomics · 2026Article
- Effects of hot water treatment, silver hydroxide ion solution and carboxymethyl chitosan onFood chemistry. Molecular sciences · 2026Article
- Temperature Dominates Light in Regulating Lycopene During a Critical Period in Postharvest Tomato Fruit.International journal of molecular sciences · 2026Article
- Hybridization footprint and the mechanism of leaf color differences inHorticulture research · 2026Article
- Carotenoid aggregates negatively impact chlorophyll levels and disrupt chloroplast development in peaches.Molecular horticulture · 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
- Review
- Domestication of Tartary Buckwheat Shaped a Regulatory Module for Seedling Salt Tolerance by Targeting the Magnesium Transporter Gene FtMGT2.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026Article
- Dynamic transcriptome unveils transcriptional network associated with chlorophyll degradation in tobacco leaves under high humidity and temperature.Frontiers in plant science · 2026Article
- The MabZIP5-MaMYB69 module cooperates with MaERF55 to modulate banana fruit ripening via cell wall degradation.Horticulture research · 2026Article
- Transcriptomics and Gene Family Identification of Cell Wall-Related Differentially Expressed Genes RevealPlants (Basel, Switzerland) · 2025Article
- A Study on the Cell Layer Patterns of a Citrus Periclinal Chimera Reveals β-Cryptoxanthin Regulation in Citrus Fruits.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025Article
- The MaASR3-MaHDT1 module modulates high-temperature-inhibited chlorophyll breakdown in banana fruit by suppressing the E3 ligase MaNIP1.Horticulture research · 2025Article
- Review
- Spatial regulation of chlorophyll degradation in kiwifruit: AcNAC2-AcSGR1/2 cascades mediate rapid de-greening in the inner pericarp.Plant biotechnology journal · 2025Article
- Heat vs. hue: A molecular tug-of-war in pear fruit coloration.The Plant cell · 2025Article
- The ETHYLENE RESPONSE FACTOR6-GRETCHEN HAGEN3.5 module regulates rooting and heat tolerance in Dimocarpus longan.Plant physiology · 2025Article
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8 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Banana (Musa acuminata) fruits ripening at 30 °C or above fail to develop yellow peels; this phenomenon, called green ripening, greatly reduces their marketability. The regulatory mechanism underpinning high temperature-induced green ripening remains unknown. Here we decoded a transcriptional and post-translational regulatory module that causes green ripening in banana. Banana fruits ripening at 30 °C showed greatly reduced expression of 5 chlorophyll catabolic genes (CCGs), MaNYC1 (NONYELLOW COLORING 1), MaPPH (PHEOPHYTINASE), MaTIC55 (TRANSLOCON AT THE INNER ENVELOPE MEMBRANE OF CHLOROPLASTS 55), MaSGR1 (STAY-GREEN 1), and MaSGR2 (STAY-GREEN 2), compared to those ripening at 20 °C. We identified a MYB transcription factor, MaMYB60, that activated the expression of all 5 CCGs by directly binding to their promoters during banana ripening at 20 °C, while showing a weaker activation at 30 °C. At high temperatures, MaMYB60 was degraded. We discovered a RING-type E3 ligase MaBAH1 (benzoic acid hypersensitive 1) that ubiquitinated MaMYB60 during green ripening and targeted it for proteasomal degradation. MaBAH1 thus facilitated MaMYB60 degradation and attenuated MaMYB60-induced transactivation of CCGs and chlorophyll degradation. By contrast, MaMYB60 upregulation increased CCG expression, accelerated chlorophyll degradation, and mitigated green ripening. Collectively, our findings unravel a dynamic, temperature-responsive MaBAH1-MaMYB60-CCG module that regulates chlorophyll catabolism, and the molecular mechanism underpinning green ripening in banana. This study also advances our understanding of plant responses to high-temperature stress.
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