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microspore    
n. 小胞子

小胞子

microspore
n 1: smaller of the two types of spore produced in heterosporous
plants; develops in the pollen sac into a male gametophyte


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  • Microspore - Wikipedia
    The microspore divides by mitosis producing two cells The first of the cells (the generative cell) is small and is formed inside the second larger cell (the tube cell) The members of each part of the microspores separate from each other A double-layered wall then develops around each microspore
  • Microsporogenesis: Process, Stages, and Significance
    During microsporogenesis, all the sporogenous cells differentiate into microspore mother cells whereas during megasporogenesis, only one sporogenous cell differentiates into a megaspore mother cell
  • Microsporogenesis – Definition, Process, Structure, Importance
    Microsporogenesis is the development and maturation of microspores, the haploid progeny of pollen grains By means of meiosis, diploid microsporocytes (pollen mother cells) produce a tetrad of four haploid microspores, therefore guaranteeing genetic recombination and variation in this process
  • Microspore - an overview | ScienceDirect Topics
    Microspores, the immature precursors to pollen grains, result from the meiotic reductive pollen mother cell division in anthers Each microspore contains a haploid genome copy, a single chromosome set (n), and a unique allelic composition resulting from the genetic recombination of the parental genes
  • Microspore embryogenesis: establishment of embryo identity and pattern . . .
    Here, we use the more commonly used term ‘microspore embryogenesis’ to refer to the in vitro culture of the immature male gametophyte, regardless of the developmental stage of the cells that form embryos
  • What is the Difference Between a Microspore and Pollen Grain?
    Each microspore grows into a pollen grain that is essential for fertilization in the plants Microspores are plant spores that produce male gametophytes, which develop into sperm cells
  • Microspore - (General Biology I) - Vocab, Definition, Explanations . . .
    A microspore is a haploid spore that develops into a male gametophyte in seed plants and some other vascular plants These tiny spores are crucial for reproduction, as they give rise to pollen grains which carry the male gametes necessary for fertilization
  • Microspore | plant anatomy | Britannica
    When a microspore germinates, it is known as a pollen grain When the pollen sacs in a stamen’s anther are ripe, the anther releases them and the pollen is shed
  • Microsporogenesis: Structure and Development - Embibe
    Microsporogenesis is the process of formation of pollen grains (or microspores) inside the pollen sacs (or microsporangium) of flowering plants by meiotic or reduction division Each microspore is the first cell of the male gametophyte that produces male gametes
  • Microsporogenesis: Definition, Diagram, Process, Types, Structure and . . .
    Microsporogenesis in flowering plants is the process by which microspores are formed within their anthers, the precursory cells leading to the formation of pollen grains There is a meiotic division of one diploid microsporocyte that gives rise to four haploid microspores





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