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Sporogenesis

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Sanchari Bhattacharyya

Types of asexual reproduction in organisms include binary fission and sporogenesis. Binary fission involves a unicellular organism dividing into two genetically identical daughter cells through mitosis. Sporogenesis produces reproductive spores through mitosis in some fungi and algae or meiosis in plants. These spores can form within structures called sporangia and allow organisms to survive unfavorable conditions.

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Types of Asexual Reproduction
BinaryFission A fully grown unicellular organism divides into two daughter ce The daughter cells are genetically identical to the parent. Steps in Binary Fission Step 1: DNA is copied inside the parent organism. Step 2: Organism grows in size and distance increases between two genetic materials . Step 3: The cell wall starts growing and the genetic materials drift further apart. Step 4: Cell divides completely giving rise to two daughter cells.
one-celled, reproductive unit capable of giving rise to a new individual without sexual fusion, characteristic of lower plants, fungi, and protozoans. sometimes dormant spores are formed due to unfavourable condition. spores may form as a result of meiosis (in Plants), or mitosis (some Fungi and algae) Sporogenesis
Reproductive Spores produced by one parent only (through mitosis). are genetically identical to that parent. Parts involving Sporogenesis: thallus is the plant body. Sporangium: special reproductive sac.
Reproductive spores are generally the result of cell division, most commonly meiosis. Sporogenesis occurs via mitosis in some fungi and algae Sporogenesis occurs in reproductive structures termed sporangia. The process involves sporogenous cells (sporocytes, also called spore mother cells) undergoing cell division to give rise to spores. Some Algae and fungi produce mitospores through mitiotic cell division within a sporangium
Dormant Spores To survive unfavourable condition Metabolically Dormant Offer resistance to: Freezing Heating Dessication Pressure Radiation Chemicals Seen in some algae, fungi and bacteria Chlamydospores, teliospores, zygospores, and myxospores are types of dormant spores.
Sporogenesis

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Sporogenesis

  • 1. Types of Asexual Reproduction
  • 2. BinaryFission A fully grown unicellular organism divides into two daughter ce The daughter cells are genetically identical to the parent. Steps in Binary Fission Step 1: DNA is copied inside the parent organism. Step 2: Organism grows in size and distance increases between two genetic materials . Step 3: The cell wall starts growing and the genetic materials drift further apart. Step 4: Cell divides completely giving rise to two daughter cells.
  • 3. one-celled, reproductive unit capable of giving rise to a new individual without sexual fusion, characteristic of lower plants, fungi, and protozoans. sometimes dormant spores are formed due to unfavourable condition. spores may form as a result of meiosis (in Plants), or mitosis (some Fungi and algae) Sporogenesis
  • 4. Reproductive Spores produced by one parent only (through mitosis). are genetically identical to that parent. Parts involving Sporogenesis: thallus is the plant body. Sporangium: special reproductive sac.
  • 5. Reproductive spores are generally the result of cell division, most commonly meiosis. Sporogenesis occurs via mitosis in some fungi and algae Sporogenesis occurs in reproductive structures termed sporangia. The process involves sporogenous cells (sporocytes, also called spore mother cells) undergoing cell division to give rise to spores. Some Algae and fungi produce mitospores through mitiotic cell division within a sporangium
  • 6. Dormant Spores To survive unfavourable condition Metabolically Dormant Offer resistance to: Freezing Heating Dessication Pressure Radiation Chemicals Seen in some algae, fungi and bacteria Chlamydospores, teliospores, zygospores, and myxospores are types of dormant spores.