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micropyle    
卵孔; 珠孔

卵孔; 珠孔

micropyle
n 1: minute opening in the wall of an ovule through which the
pollen tube enters


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  • Micropyle - Wikipedia
    Micropyle Micropyle may refer to: Micropyle (botany) a minute opening in the integument of an ovule of a seed plant Micropyle (zoology), a differentiated area of surface in an egg, through which a sperm enters
  • Micropyle | plant anatomy | Britannica
    The term "micropyle" refers to a small opening In plant anatomy, it is a minute opening in the integument of an ovule in seed plants This opening is significant because it is where the pollen tube typically enters the ovule during fertilization The micropyle persists in many mature seeds as a small opening in the seed coat 1 2
  • MICROPYLE Definition Meaning - Merriam-Webster
    The meaning of MICROPYLE is a minute opening in the integument of an ovule of a seed plant
  • Micropyle - an overview | ScienceDirect Topics
    The micropyle is defined as the opening in an ovule formed by integuments, which can be classified into types such as amphistomal, endostomal, exostomal, zig-zag, or unistomal, depending on the arrangement and presence of the outer and inner integuments
  • Micropyle (zoology) - Wikipedia
    A micropyle is a pore in the membrane covering the ovum, through which a sperm enters Micropyles are also found in sporozoites of some digenetic microorganisms such as Plasmodium at the anterior part of the cell that ultimately leads towards the apical cap
  • Micropyle | insect anatomy | Britannica
    In the context of insect anatomy, the micropyle is a crucial part of the eggshell, or chorion This tiny canal allows sperm to enter the egg for fertilization
  • 4. 6. 3: Mature Embryos and Seed Structure - Biology LibreTexts
    The micropyle is a small round structure next to the hilum where the pollen tube entered Figure $4 6 3 1$: The external structures of a bean seed, an example of a eudicot (7X) The seed coat surrounds the seed There is a round micropyle, where the pollen tube originally entered the ovule
  • Micropyle (Opening in Ovule for Pollen Tube Entry)
    The micropyle stands as a pivotal yet diminutive portal in the reproductive architecture of seed plants, serving as the precise entryway for pollen tubes to access the embryo sac within the ovule
  • Micropyle: Definition Meaning
    Micropyle refers to a tiny opening in the ovule, and later in the seed coat, where the integuments do not fully close In flowering plants, it is the passage through which the pollen tube usually enters the ovule for fertilization
  • micropyle - Wiktionary, the free dictionary
    From French, from Ancient Greek μικρός (mikrós, “small”) + πύλη (púlē, “gate”) micropyle (plural micropyles) (botany) In seed-bearing plants, a small opening in the integuments of the ovule through which sperm are able to access the ovum





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