ArticleBMC plant biology2012
Down-regulation of POLYGALACTURONASE1 alters firmness, tensile strength and water loss in apple (Malus x domestica) fruit.
Article in BMC plant biology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 84 papers.
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Who cites it
84 citing papers in PubMed, 238 citations in OpenAlex.
- Coordinated Cell-Wall and Starch Maturation Is Associated with Winter-Harvest Quality inInternational journal of molecular sciences · 2026Article
- Fine-mapping and candidate gene analysis of qFF3.1 conferring fruit firmness in a modern tomato variety.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2026Article
- Insights into the roles of RALF peptides and CrRLK1L receptors in fruit ripening.The Plant journal : for cell and molecular biology · 2026Review
- Gibberellin-Treated Seedless Cultivation Alters Berry Fracture Behavior, Cell Size and Cell Wall Components in the Interspecific Hybrid Table Grape (Plants (Basel, Switzerland) · 2026Article
- Integrated metabolome and transcriptome reveal the molecular basis of flavonoid pathway-mediated fruit firmness variation in sweet cherry (Current research in food science · 2026Article
- Advances in Cell Wall Dynamics and Gene Expression in Postharvest Fruit Softening.Plants (Basel, Switzerland) · 2025Review
- ERF100 regulated by ERF28 and NOR controls pectate lyase 7, modulating fig (Ficus carica L.) fruit softening.Plant biotechnology journal · 2025Article
- Ethylene-Activated E3 Ubiquitin Ligase MdEAEL1 Promotes Apple Fruit Softening by Facilitating the Dissociation of Transcriptional Repressor Complexes.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025Article
- EIL (ethylene-insensitive 3-like) transcription factors in apple affect both ethylene- and cold response-dependent fruit ripening.The Plant journal : for cell and molecular biology · 2025Article
- DNA-free CRISPR genome editing in raspberry (Frontiers in genome editing · 2025Article
- Exploring the mechanism of seed shattering in Psathyrostachys juncea through histological analysis and comparative transcriptomics.BMC plant biology · 2024Article
- Effect of Short-Term High-COPlants (Basel, Switzerland) · 2024Article
- MdWRKY31-MdNAC7 regulatory network: orchestrating fruit softening by modulating cell wall-modifying enzyme MdXTH2 in response to ethylene signalling.Plant biotechnology journal · 2024Article
- Transcriptome analysis reveals regulatory mechanism of postharvest softening in kiwiberry.BMC plant biology · 2024Article
- Identification, charectrization and genetic transformation of lignin and pectin polysaccharides through CRISPR/Cas9 in Nicotiana tobacum.Functional & integrative genomics · 2024Article
- Exploring the influence of a single-nucleotide mutation in EIN4 on tomato fruit firmness diversity through fruit pericarp microstructure.Plant biotechnology journal · 2024Article
- A 5.2-kb insertion in the coding sequence of PavSCPL, a serine carboxypeptidase-like enhances fruit firmness in Prunus avium.Plant biotechnology journal · 2024Article
- Insights into the cell-wall dynamics in grapevine berries during ripening and in response to biotic and abiotic stresses.Plant molecular biology · 2024Review
- Decrypting Molecular Mechanisms Involved in Counteracting Copper and Nickel Toxicity in Jack Pine (Plants (Basel, Switzerland) · 2024Article
- Expansin SlExp1 and endoglucanase SlCel2 synergistically promote fruit softening and cell wall disassembly in tomato.The Plant cell · 2024Article
24 more citing papers are in PubMed but not listed here.
Corrections and comments
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Authors and funding
10 authors at 1 institution in 1 country.
Funding
Abstract
backgroundWhile there is now a significant body of research correlating apple (Malus x domestica) fruit softening with the cell wall hydrolase ENDO-POLYGALACTURONASE1 (PG1), there is currently little knowledge of its physiological effects in planta. This study examined the effect of down regulation of PG1 expression in 'Royal Gala' apples, a cultivar that typically has high levels of PG1, and softens during fruit ripening.
resultsPG1-suppressed 'Royal Gala' apples harvested from multiple seasons were firmer than controls after ripening, and intercellular adhesion was higher. Cell wall analyses indicated changes in yield and composition of pectin, and a higher molecular weight distribution of CDTA-soluble pectin. Structural analyses revealed more ruptured cells and free juice in pulled apart sections, suggesting improved integrity of intercellular connections and consequent cell rupture due to failure of the primary cell walls under stress. PG1-suppressed lines also had reduced expansion of cells in the hypodermis of ripe apples, resulting in more densely packed cells in this layer. This change in morphology appears to be linked with reduced transpirational water loss in the fruit.
conclusionsThese findings confirm PG1's role in apple fruit softening and suggests that this is achieved in part by reducing cellular adhesion. This is consistent with previous studies carried out in strawberry but not with those performed in tomato. In apple PG1 also appears to influence other fruit texture characters such as juiciness and water loss.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.