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Related Concept Videos

Seed Structure and Early Development of the Sporophyte02:33

Seed Structure and Early Development of the Sporophyte

Seed structures are composed of a protective seed coat surrounding a plant embryo, and a food store for the developing embryo. The embryo contains the precursor tissues for leaves, stem, and roots. The endosperm and cotyledons—seed leaves—act as the food reserves for the growing embryo.
Seedless Vascular Plants03:24

Seedless Vascular Plants

Seedless Vascular Plants Were the First Tall Plants on Earth
Morphogenesis02:19

Morphogenesis

Plant morphogenesis—the development of a plant’s form and structure—involves several overlapping developmental processes, including growth and cell differentiation. Precursor cells differentiate into specific cell types, which are organized into the tissues and organ systems that make up the functional plant.
Asexual Reproduction02:38

Asexual Reproduction

Asexual reproduction allows plants to reproduce without growing flowers, attracting pollinators, or dispersing seeds. Offspring are genetically identical to the parent and produced without the fusion of male and female gametes.
Spermatogenesis01:41

Spermatogenesis

Spermatogenesis is the process by which haploid sperm cells are produced in the male testes. It starts with stem cells located close to the outer rim of seminiferous tubules. These spermatogonial stem cells divide asymmetrically to give rise to additional stem cells (meaning that these structures “self-renew”), as well as sperm progenitors, called spermatocytes. Importantly, this method of asymmetric mitotic division maintains a population of spermatogonial stem cells in the male reproductive...
Spermatogenesis01:22

Spermatogenesis

Spermatogenesis is a complex process that involves the development of sperm cells from undifferentiated stem cells in the seminiferous tubules of the testes. The process is essential for the production of mature and functional sperm cells that are capable of fertilizing an egg.
The process of spermatogenesis can be divided into mitosis, meiosis, and spermiogenesis. During mitosis, the spermatogonia or stem cells divide to produce two identical daughter cells, type A and B spermatogonia. Type-A...

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Related Experiment Video

Updated: Jun 25, 2026

Evaluation of Fertilization State by Tracing Sperm Nuclear Morphology in Arabidopsis Double Fertilization
05:21

Evaluation of Fertilization State by Tracing Sperm Nuclear Morphology in Arabidopsis Double Fertilization

Published on: August 29, 2019

Male gametophyte development: a molecular perspective.

Michael Borg1, Lynette Brownfield, David Twell

  • 1Department of Biology, University of Leicester, UK.

Journal of Experimental Botany
|February 14, 2009
PubMed
Summary
This summary is machine-generated.

Flowering plants

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Last Updated: Jun 25, 2026

Evaluation of Fertilization State by Tracing Sperm Nuclear Morphology in Arabidopsis Double Fertilization
05:21

Evaluation of Fertilization State by Tracing Sperm Nuclear Morphology in Arabidopsis Double Fertilization

Published on: August 29, 2019

An Efficient Method for Quantitative, Single-cell Analysis of Chromatin Modification and Nuclear Architecture in Whole-mount Ovules in Arabidopsis
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Area of Science:

  • Plant reproductive biology
  • Molecular genetics
  • Developmental biology

Background:

  • Pollen grains are essential for plant reproduction, delivering sperm for double fertilization.
  • Male gametophyte development is a key innovation in flowering plant evolution.

Purpose of the Study:

  • To review recent advances in understanding the molecular mechanisms of male gametophyte development.
  • To present an emerging model for the regulatory network controlling male germline development.

Main Methods:

  • Review of genome-wide transcriptomic studies.
  • Genetic analysis of male gametogenesis.
  • Discussion of molecular mechanisms.

Main Results:

  • Recent advances illuminate molecular control of male gametophyte development.
  • Progress in understanding sperm cell production and male germline regulation.

Conclusions:

  • Understanding gametophytic control of pollen development is crucial.
  • Future research will build on these molecular and genetic insights.