ArticlePlant & cell physiology2020
Lipid Composition and Associated Gene Expression Patterns during Pollen Germination and Pollen Tube Growth in Olive (Olea europaea L.).
Article in Plant & cell physiology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.
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Who cites it
18 citing papers in PubMed, 34 citations in OpenAlex.
- Molecular and metabolic drivers of oil quality and bioenergy potential in Jatropha curcas.Planta · 2026Article
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- Rice false smut fungus hijacks rice lipid signalling to manipulate floret development and immunity.Nature plants · 2026Article
- Acetate prevents pistil dysfunction in rice under heat stress by inducing methyl jasmonate and quercetin synthesis.Journal of advanced research · 2025Article
- Bridging the gaps: advanced techniques to unlock lipid function in plant reproductive development.Plant reproduction · 2025Review
- Pollen-Derived Fatty Acids and Amino Acids Mediate Variance in Pollinator Visitation.Journal of chemical ecology · 2025Article
- Exploiting lipid droplet metabolic pathway to foster lipid production: oleosin in focus.Plant cell reports · 2024Review
- Comparative stigmatic transcriptomics reveals self and cross pollination responses to heteromorphic incompatibility inFrontiers in genetics · 2024Article
- Transcriptomic Insight into the Pollen Tube Growth ofPlants (Basel, Switzerland) · 2023Article
- Integrative lipidomics profile uncovers the mechanisms underlying high-level α-linolenic acid accumulation inHorticulture research · 2023Article
- Movement of Lipid Droplets in the Arabidopsis Pollen Tube Is Dependent on the Actomyosin System.Plants (Basel, Switzerland) · 2023Article
- Lipid droplets are versatile organelles involved in plant development and plant response to environmental changes.Frontiers in plant science · 2023Review
- Mitochondrial Complex I Disruption Causes Broad Reorchestration of Plant Lipidome Including Chloroplast Lipids.International journal of molecular sciences · 2022Article
- Comprehensive analysis of glycerolipid dynamics during tobacco pollen germination and pollen tube growth.Frontiers in plant science · 2022Article
- Comparative Metabolic Analysis Reveals a Metabolic Switch in Mature, Hydrated, and Germinated Pollen inFrontiers in plant science · 2022Article
- In Silico Analysis of Fatty Acid Desaturases Structures inInternational journal of molecular sciences · 2021Article
- Distinct Physiological Roles of Three Phospholipid:Diacylglycerol Acyltransferase Genes in Olive Fruit with Respect to Oil Accumulation and the Response to Abiotic Stress.Frontiers in plant science · 2021Article
- Methodologies and Considerations in Evaluating Heat Stress Response and Thermotolerance of Pollen Grains.Physiologia plantarumReview
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Authors and funding
5 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Pollen lipids are essential for sexual reproduction, but our current knowledge regarding lipid dynamics in growing pollen tubes is still very scarce. Here, we report unique lipid composition and associated gene expression patterns during olive pollen germination. Up to 376 genes involved in the biosynthesis of all lipid classes, except suberin, cutin and lipopolysaccharides, are expressed in olive pollen. The fatty acid profile of olive pollen is markedly different compared with other plant organs. Triacylglycerol (TAG), containing mostly C12-C16 saturated fatty acids, constitutes the bulk of olive pollen lipids. These compounds are partially mobilized, and the released fatty acids enter the β-oxidation pathway to yield acetyl-CoA, which is converted into sugars through the glyoxylate cycle during the course of pollen germination. Our data suggest that fatty acids are synthesized de novo and incorporated into glycerolipids by the 'eukaryotic pathway' in elongating pollen tubes. Phosphatidic acid is synthesized de novo in the endomembrane system during pollen germination and seems to have a central role in pollen tube lipid metabolism. The coordinated action of fatty acid desaturases FAD2-3 and FAD3B might explain the increase in linoleic and alpha-linolenic acids observed in germinating pollen. Continuous synthesis of TAG by the action of diacylglycerol acyltransferase 1 (DGAT1) enzyme, but not phosphoplipid:diacylglycerol acyltransferase (PDAT), also seems plausible. All these data allow for a better understanding of lipid metabolism during the olive reproductive process, which can impact, in the future, on the increase in olive fruit yield and, therefore, olive oil production.
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Registered trials
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