ArticlePlant physiology2002
Overexpression of polygalacturonase in transgenic apple trees leads to a range of novel phenotypes involving changes in cell adhesion.
Article in Plant physiology, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 74 papers.
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74 citing papers in PubMed, 187 citations in OpenAlex.
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- Physiological and transcriptomic analysis provide new insight into seed shattering mechanism in Carex breviculmis 'Siji'.Plant cell reports · 2025Article
- Genome-Wide Analysis of the Polygalacturonase Gene Family in Macadamia and Identification of Members Involved in Fruit Abscission.Plants (Basel, Switzerland) · 2025Article
- Mutation of the Polygalacturonase GeneBiology · 2025Article
- Exploring the mechanism of seed shattering in Psathyrostachys juncea through histological analysis and comparative transcriptomics.BMC plant biology · 2024Article
- MdWRKY31-MdNAC7 regulatory network: orchestrating fruit softening by modulating cell wall-modifying enzyme MdXTH2 in response to ethylene signalling.Plant biotechnology journal · 2024Article
- HCC1, a Polygalacturonase, Regulates Chlorophyll Degradation via the Ethylene Synthesis Pathway.Rice (New York, N.Y.) · 2023Article
- Ethylene enhances MdMAPK3-mediated phosphorylation of MdNAC72 to promote apple fruit softening.The Plant cell · 2023Article
- Polygalacturonase gene family analysis identifies FcPG12 as a key player in fig (Ficus carica L.) fruit softening.BMC plant biology · 2023Article
- Genome-wide identification and expression analysis of the polygalacturonase gene family in sweetpotato.BMC plant biology · 2023Article
- Transcriptomic Analysis Reveals Genes Associated with the Regulation of Peach Fruit Softening and Senescence during Storage.Foods (Basel, Switzerland) · 2023Article
- Promoter Variation of the Key Apple Fruit Texture Related GenePlants (Basel, Switzerland) · 2023Article
- Secretome analysis revealed that cell wall remodeling and starch catabolism underlie the early stages of somatic embryogenesis inFrontiers in plant science · 2023Article
- Polygalacturonase activity promotes aberrant cell separation in theCell surface (Amsterdam, Netherlands) · 2022Article
- A polygalacturonase gene PG031 regulates seed coat permeability with a pleiotropic effect on seed weight in soybean.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2022Article
- Impacts of Gum Arabic and Polyvinylpyrrolidone (PVP) with Salicylic Acid on Peach Fruit (Molecules (Basel, Switzerland) · 2022Article
- Genome-Wide Identification of theInternational journal of molecular sciences · 2021Article
- Protocols for isolating and characterizing polysaccharides from plant cell walls: a case study using rhamnogalacturonan-II.Biotechnology for biofuels · 2021Article
- OsPG1 Encodes a Polygalacturonase that Determines Cell Wall Architecture and Affects Resistance to Bacterial Blight Pathogen in Rice.Rice (New York, N.Y.) · 2021Article
14 more citing papers are in PubMed but not listed here.
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Authors and funding
5 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Polygalacturonases (PGs) cleave runs of unesterified GalUA that form homogalacturonan regions along the backbone of pectin. Homogalacturonan-rich pectin is commonly found in the middle lamella region of the wall where two adjacent cells abut and its integrity is important for cell adhesion. Transgenic apple (Malus domestica Borkh. cv Royal Gala) trees were produced that contained additional copies of a fruit-specific apple PG gene under a constitutive promoter. In contrast to previous studies in transgenic tobacco (Nicotiana tabacum) where PG overexpression had no effect on the plant (K.W. Osteryoung, K. Toenjes, B. Hall, V. Winkler, A.B. Bennett [1990] Plant Cell 2: 1239-1248), PG overexpression in transgenic apple led to a range of novel phenotypes. These phenotypes included silvery colored leaves and premature leaf shedding due to reduced cell adhesion in leaf abscission zones. Mature leaves had malformed and malfunctioning stomata that perturbed water relations and contributed to a brittle leaf phenotype. Chemical and ultrastructural analyses were used to relate the phenotypic changes to pectin changes in the leaf cell walls. The modification of apple trees by a single PG gene has offered a new and unexpected perspective on the role of pectin and cell wall adhesion in leaf morphology and stomatal development.
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