ArticlePlant physiology2023
The microRNA ppe-miR393 mediates auxin-induced peach fruit softening by promoting ethylene production.
Article in Plant physiology, 2023. 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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10 citing papers in PubMed, 34 citations in OpenAlex.
- Ethylene networking in fruit ripening: molecular mechanisms, hormone crosstalk, climate interactions, and postharvest management.Plant cell reports · 2026Review
- Anthocyanin biosynthesis in blueberry is regulated by light and abscisic acid signaling via a VcABF2-miR156-VcSPL9 feedback loop.The New phytologist · 2026Article
- Identification of PpTHE1, a cell wall integrity sensor regulating the increased duration of harvest window in slow-melting flesh peach, through the assembly of a chromosome-level reference genome of Prunus persica.Plant biotechnology journal · 2025Article
- The ethylene response factor ERF1A regulates UV-C-induced delayed ripening in peach fruit.Plant physiology · 2025Article
- Systematic analysis of the Aux/IAA gene family in pineapple reveals insights into their structural diversity, expression dynamics, and interaction networks.BMC plant biology · 2025Article
- Enrichment of two important metabolites D-galacturonic acid and D-glucuronic acid inhibits MdHb1-mediated fruit softening in apple.Nature plants · 2025Article
- CitGATA7 interact with histone acetyltransferase CitHAG28 to promote citric acid degradation by regulating the glutamine synthetase pathway in citrus.Molecular horticulture · 2025Article
- Divergence in MiRNA targeting of AchAco and its role in citrate accumulation in kiwifruit.BMC plant biology · 2024Article
- Article
- Focus on fruit crops.Plant physiology · 2023Article
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Authors and funding
11 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Auxin can inhibit or promote fruit ripening, depending on the species. Melting flesh (MF) peach fruit (Prunus persica L. Batsch) cultivars produce high levels of ethylene caused by high concentrations of indole-3-acetic acid (IAA), which leads to rapid fruit softening at the late stage of development. In contrast, due to the low concentrations of IAA, the fruit of stony hard (SH) peach cultivars does not soften and produces little ethylene. Auxin seems necessary to trigger the biosynthesis of ethylene in peach fruit; however, the mechanism is not well understood. In this study, we identified miRNA gene family members ppe-miR393a and ppe-miR393b that are differentially expressed in SH and MF fruits. RNA ligase-mediated 5' rapid amplification of cDNA ends and transient transformation of Nicotiana benthamiana revealed TRANSPORT INHIBITOR RESPONSE 1 (PpTIR1), part of the auxin perception and response system, as a target of ppe-miR393a and b. Yeast 2-hybrid assay and bimolecular fluorescence complementation assay revealed that PpTIR1 physically interacts with an Aux/IAA protein PpIAA13. The results of yeast 1-hybrid assay, electrophoretic mobility shift assay, and dual-luciferase assay indicated that PpIAA13 could directly bind to and trans-activate the promoter of 1-aminocyclopropane-1-carboxylic acid synthase 1 (PpACS1), required for ethylene biosynthesis. Transient overexpression and suppression of ppe-miR393a and PpIAA13 in peach fruit induced and repressed the expression of PpACS1, confirming their regulatory role in ethylene synthesis. Gene expression analysis in developing MF and SH fruits, combined with postharvest α-naphthalene acetic acid (NAA) treatment, supports a role for a ppe-miR393-PpTIR1-PpIAA13-PpACS1 module in regulating auxin-related differences in ethylene production and softening extent in different types of peach.
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