pollen tube

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pollen tube

The slender tube formed by the pollen grain that penetrates an ovule and releases the male gametes.

pollen tube

(Life Sciences & Allied Applications / Botany) a hollow tubular outgrowth that develops from a pollen grain after pollination, grows down the style to the ovule, and conveys male gametes to the egg cell

pollen tube

The slender tube that is formed after pollination by division of the tube cell in a pollen grain. The pollen tube penetrates the ovule and releases the male gametes.

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Noun

pollen tube - (botany) a slender tubular outgrowth from a pollen grain when deposited on the stigma for a flower; it penetrates the style and conveys the male gametes to the ovule

phytology, botany - the branch of biology that studies plants

plant part, plant structure - any part of a plant or fungus

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aperture botany Chalazogamy germ pore germ tube micropylar micropyle ovule phytology plant part plant structure pollen pore self-incompatible sperm Spermatophyta stoma stomate style			Knowing how to interrupt pollen tube formation in plants such as corn and soybeans, for example, could help prevent genetically engineered crops from interbreeding with wild populations. How plant tissues know which end is their growing tip by Asian News International For the first time, researchers have pinpointed the exact molecules one plant uses to attract pollen tubes to its reproductive organs. Plants reveal pollen-luring secrets: molecules of attraction ... by Zelkowitz, Rachel / Science News Beneath the stigma is a tubular style, into which a pollen tube (growing out from a pollen grain) tunnels until it reaches the ovary and, finally, the ovule (egg) at the bottom of the style. IN THE GARDEN THE BUZZ ON HONEYBEES by Daily News (Los Angeles, CA)			Poll book Poll evil poll parrot Poll pick poll taker poll tax poll watcher Pollachius Pollachius pollachius pollack Pollage Pollaiuolo pollan pollard Pollax polled pollee pollen pollen analysis pollen basket pollen count pollen grain Pollen mass pollen mother cell pollen sac pollen tube Pollenarious pollenate pollenation Pollened polleniferous Pollenin Pollenize pollenosis Poller pollex Pollicate Pollicitation pollin- pollinate pollination pollinator Pollinctor polling polling booth polling day polling place polling station pollini- polliniferous pollinium			pollen pollen allergen pollen allergen pollen allergen Pollen allergy Pollen allergy Pollen allergy Pollen analysis pollen antigen pollen antigen pollen antigen Pollen basket pollen baskets pollen coryza pollen count pollen count pollen count pollen counts pollen counts pollen counts pollen grain pollen grain pollen grain Pollen mass Pollen Mixture pollen mother cell pollen sac pollen sac Pollen Signalling Protein Pollen Transfer Efficiency pollen tube Pollen tubes Pollen tubes Pollen wasp Pollenarious Pollenase Antihistamine Pollenase Antihistamine Pollenase Nasal pollenate pollenate pollenated pollenated pollenates pollenates pollenating pollenating pollenation pollenation Pollened Pollened Pollened Pollenia Pollenia Pollenia rudis polleniferous Pollenin Pollenitis Pollenitis Pollenitis Pollenize pollenogenic

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