ArticleThe Plant cell2005
Pyruvate decarboxylase provides growing pollen tubes with a competitive advantage in petunia.
Article in The Plant cell, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers.
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Who cites it
43 citing papers in PubMed, 108 citations in OpenAlex.
- Free fatty acid biosynthesis precursors are involved in pollen-stigma interactions inHorticulture research · 2025Article
- Temperature dependence of pollen germination and tube growth in conifers relates to their distribution along an elevational gradient in Washington State, USA.Annals of botany · 2025Article
- Mutations in nuclear genes encoding mitochondrial ribosome proteins restore pollen fertility in S male-sterile maize.G3 (Bethesda, Md.) · 2024Article
- Homeostasis of flavonoids and triterpenoids most likely modulates starch metabolism for pollen tube penetration in rice.Plant biotechnology journal · 2023Article
- Cytosolic disproportionating enzyme2 is essential for pollen germination and pollen tube elongation in rice.Plant physiology · 2023Article
- Bioenergetics of pollen tube growth in Arabidopsis thaliana revealed by ratiometric genetically encoded biosensors.Nature communications · 2022Article
- Post-pollination sepal longevity of female flower co-regulated by energy-associated multiple pathways in dioecious spinach.Frontiers in plant science · 2022Article
- SWATH-MS based quantitive proteomics reveal regulatory metabolism and networks of androdioecy breeding system in Osmanthus fragrans.BMC plant biology · 2021Article
- Links between Regulatory Systems of ROS and Carbohydrates in Reproductive Development.Plants (Basel, Switzerland) · 2021Review
- Transcriptome analysis of Cinnamomum migao seed germination in medicinal plants of Southwest China.BMC plant biology · 2021Article
- Lipid Composition and Associated Gene Expression Patterns during Pollen Germination and Pollen Tube Growth in Olive (Olea europaea L.).Plant & cell physiology · 2020Article
- Ascorbate and Thiamin: Metabolic Modulators in Plant Acclimation Responses.Plants (Basel, Switzerland) · 2020Review
- Comparative transcriptome analysis indicates that a core transcriptional network mediates isonuclear alloplasmic male sterility in wheat (Triticum aestivum L.).BMC plant biology · 2020Article
- The modulation of acetic acid pathway genes in Arabidopsis improves survival under drought stress.Scientific reports · 2018Article
- Glycolysis regulates pollen tube polarity via Rho GTPase signaling.PLoS genetics · 2018Article
- Article
- Metabolite-Centric Reporter Pathway and Tripartite Network Analysis ofFrontiers in bioengineering and biotechnology · 2018Article
- Floral Metabolism of Sugars and Amino Acids: Implications for Pollinators' Preferences and Seed and Fruit Set.Plant physiology · 2017Review
- Functional Characterization of Waterlogging and Heat Stresses Tolerance Gene Pyruvate decarboxylase 2 from Actinidia deliciosa.International journal of molecular sciences · 2017Article
- Comparative protein profiles of Butea superba tubers under seasonal changes.Molecular biology reports · 2016Article
Corrections and comments
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Authors and funding
8 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Rapid pollen tube growth places unique demands on energy production and biosynthetic capacity. The aim of this work is to understand how primary metabolism meets the demands of such rapid growth. Aerobically grown pollen produce ethanol in large quantities. The ethanolic fermentation pathway consists of two committed enzymes: pyruvate decarboxylase (PDC) and alcohol dehydrogenase (ADH). Because adh mutations do not affect male gametophyte function, the obvious question is why pollen synthesize an abundant enzyme if they could do just as well without. Using transposon tagging in Petunia hybrida, we isolated a null mutant in pollen-specific Pdc2. Growth of the mutant pollen tubes through the style is reduced, and the mutant allele shows reduced transmission through the male, when in competition with wild-type pollen. We propose that not ADH but rather PDC is the critical enzyme in a novel, pollen-specific pathway. This pathway serves to bypass pyruvate dehydrogenase enzymes and thereby maintain biosynthetic capacity and energy production under the unique conditions prevailing during pollen-pistil interaction.
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Registered trials
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.