Botany lecture notes

Fungi General Characteristics PPT


Plant Science PPT

Fungi General Characteristics PPT
(General Characteristics of Fungi PPT)

What are fungi? How fungi differ from other plants? What is mycelium and hyphae? What is dolipore septum? How fungal cell wall is different from the cell wall of other plants? How mitosis in fungi is different from other eukaryotes? What is meant by dikaryotization? What are the hyphal modifications in fungi? What is the type of nutrition in fungi? How fungi reproduce? Holocarpic vs Eucarpic fungi, How sexual reproduction occurs in fungi?

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Botany lecture notes

Reproduction in Fungi- Part-3: Sexual Reproduction (Lecture Notes & PPT)


methods of sexual reproduction in fungi

Sexual Reproduction in Fungi

Ø  Fungi reproduce by vegetative, asexual and sexual methods

Ø  This post describes the Sexual Reproduction methods in fungi

Ø  Sexual reproduction takes place in all groups of fungi except Deuteromycetes

Ø  Fungi may be monoecious (bisexual) or dioecious (unisexual)

Ø  Moneoecious species produce two sex organs (male and female) in the same thallus, thus they are called homothallic

Ø  Dioecious forms produces sex organs in separate thalli, hence called heterothallic

Ø  Based on the complexity of sexual reproduction, fungi can be grouped into two categories:

(1). Eukarpic fungi

(2). Holocarpic fungi

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Botany lecture notes

Reproduction in Fungi- Part-2: Asexual Reproduction (Lecture Notes & PPT)


Spores in fungi

Asexual Reproduction in Fungi

Ø  Fungi reproduce by vegetative, asexual and sexual methods

Ø  This post describes different types of ASEXUAL REPRODUCTION methods in fungi

Ø  About 20% fungi propagate only by asexual means

Ø  Asexual reproduction take places during favorable condition by the formation of a variety of spores

Ø  Such spores produced by asexual reproduction are called mitospores

Ø  Spores may be unicellular (Aspergillus, Penicillium) or Multicellular (Alternaria, Cercospora)

Ø  Based on the number of cells in spores, asexual spores of fungi are classified into:

1. Amerospore: one celled spores

2. Didymospore: two celled spores

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Botany lecture notes

Reproduction in Fungi- Part-1: Vegetative Reproduction (Lecture Notes & PPT)


how fungi reproduce vegetatively

Vegetative Reproduction in Fungi

Ø  Fungi reproduce by vegetative, asexual and sexual methods

Ø  This post describes different types of Vegetative reproduction methods in fungi

Ø  Vegetative reproduction helps to increase the number of individuals in the population

Ø  Vegetative reproduction in fungi occurs by:

(1). Fragmentation

(2). Fission

(3). Bud fission

(4). Budding

(5). Gemmae

(6). Sclerotia

(7). Rhizomorphs

(8). Mycelial cords

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Botany lecture notes

Nutrition in Fungi Key Points with PPT (Saprophytic, Parasitic, Symbiotic and Predator Fungi)


nutrition in fungi

Ø  Fungi are heterotrophic in nutrition

Ø  They are chlorophyll deficient plants and hence they cannot manufacture carbohydrates using carbon dioxide, water and sunlight

Ø  Fungi are with simple structural organization, thus they always depends on dead or living organic matter for their energy requirements

Ø  On the basis of mode of nutrition, fungi are classified into four groups:

(1). Saprophytes

(2). Parasites

(3). Symbionts

(4). Predacious fungi

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