| Information | |
|---|---|
| has gloss | (noun) (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 pollen tube |
| has gloss | eng: The pollen tube is the tube which sperm from the pollen reaches the ovary, and fertilises the plant to form seeds. |
| has gloss | eng: The pollen tube of most seed plants acts as a conduit to transport sperm cells from the pollen grain, either from the stigma (in flowering plants or angiosperms) to the ovules at the base of the pistil, or directly through ovule tissue in some gymnosperms (conifers and gnetophytes). In other gymnosperms (Ginkgo and cycads) the pollen tube is involved only in nutrient uptake from ovule tissue by the pollen grain, and does not convey sperm cells to the egg. Like ferns, other basal land plants, and many algae, these gymnosperms have flagellate sperm, which swim through a watery fluid to fertilize the egg cells. |
| lexicalization | eng: Pollen Tube |
| subclass of | (noun) any part of a plant or fungus plant structure, plant part |
| Meaning | |
|---|---|
| Catalan | |
| has gloss | cat: El túb pol·línic és una estructura allargada creada pel gra de pol·len en el moment que aquest germina. |
| lexicalization | cat: tub pol·línic |
| lexicalization | cat: Tub poŀlínic |
| Czech | |
| has gloss | ces: Pylová láčka je buněčný útvar (polárně rostoucí buňka), který prorůstá na povrch pylového zrna po té, kdy pylové zrno dopadne na povrch blizny. |
| lexicalization | ces: Pylová láčka |
| German | |
| has gloss | deu: Unter Pollenschlauch versteht man eine Struktur, die von der vegetativen Zelle (Pollenschlauchzelle) und der Intine des auf die Narbe gelangten Pollenkorns bei der Keimung gebildet wird. Sie dient bei ursprünglicheren Gymnospermen (Ginkgo, Cycadopsida) der Befestigung und Ernährung des männlichen Gametophyten, bei den übrigen Spermatophyten der Übertragung der männlichen Geschlechtszellen in die Samenanlage und damit der Befruchtung. |
| lexicalization | deu: Pollenschlauch |
| French | |
| lexicalization | fra: tube pollinique |
| Italian | |
| has gloss | ita: In botanica, il tubo pollinico è un prolungamento a forma di tubo che trasmette i granuli di polline, dopo essersi adagiati negli stigmi dei fiori, agendo come un mezzo di trasporto dei gameti maschili, dal granulo di polline fino all'ovulo. |
| lexicalization | ita: tubo pollinico |
| Polish | |
| has gloss | pol: Łagiewka pyłkowa - wytworzona przez komórkę wegetatywną znajdującą się w mikrosporze (ziarnku pyłku), przenosi komórki plemnikowe do woreczka zalążkowego. |
| lexicalization | pol: Łagiewka pyłkowa |
| Castilian | |
| has gloss | spa: En Botánica, el tubo polínico es una prolongación en forma de tubo que emiten los granos de polen luego de aterrizar en los estigmas de las flores y que actua como un transporte de los gametos masculinos desde el grano de polen hasta el óvulo. |
| lexicalization | spa: Tubo polinico |
| lexicalization | spa: tubo polínico |
| Links | |
|---|---|
| has category | (noun) the branch of biology that studies plants botany, phytology |
| Show unreliable ▼ | |
| similar | e/Pollen tube |
| similar | e/simple/Pollen tube |
| Media | |
|---|---|
| media:img | Angiosperm life cycle diagram-es.svg |
| media:img | Fruchtknoten Polygonum Strasburger 1900 new.png |
| media:img | Mature flower diagram.svg |
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