PollinationFertilizationFertilization in VitroPollenFlowersOrchidaceaeSpermatozoaBeesSperm-Ovum InteractionsReproductionIridaceaeOvumOocytesSeedsAngiospermsEmbryo TransferSelf-FertilizationPollen TubePlant NectarZygoteOvuleSelf-Incompatibility in Flowering PlantsZona PellucidaLiliaceaeInsectsInflorescenceMalpighiaceaeSperm Injections, IntracytoplasmicGymnospermsSperm MotilityPetuniaPregnancyWindSea UrchinsFruitPregnancy RateAcrosomeGentianaceaeEcosystemYuccaPlant Physiological PhenomenaJuniperusEricaceaeCleavage Stage, OvumCactaceaeAcrosome ReactionFertilizersCrops, AgriculturalSperm CapacitationInfertility, FemaleBignoniaceaeWaspsFertilityEmbryonic DevelopmentCampanulaceaeCryopreservationBlastocystEuphorbiaceaeOvulation InductionBorneoInfertility, MaleProteaceaeApocynaceaeInfertilityEgg ProteinsAcanthaceaeBiological EvolutionMicroinjectionsEcologyOrganic AgriculturePolygalaceaeEmbryo ImplantationPyrusBirdsBreedingChrysobalanaceaeVitelline MembraneArumRubiaceaeRosalesEmbryonic and Fetal DevelopmentParthenogenesisGerm Cells, PlantAgricultureSperm HeadSpecies SpecificityInbreedingPregnancy OutcomeNelumboAntirrhinumSemen PreservationHoneyGene Expression Regulation, PlantOocyte RetrievalOogenesisMarantaceaeCrosses, GeneticInsemination, ArtificialMelastomataceaeEndosperm