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

Hyphal Modifications in Fungi (Mycelial Aggregations in Fungi)


mycelial aggregations in fungi

Modifications of Mycelium in Fungi

Ø  In majority of fungi, hyphae are simple

Ø  In some advanced fungi, hyphae may undergo certain modification in response to functional needs

Ø  Hyphal modifications are hyphal aggregations are required to do specific functions during the life cycle of fungi

Ø  Important hyphal modifications in fungi are:

(1). Prosenchyma

(2). Pseudoparenchyma

(3). Rhizomorphs (Mycelial cords)

(4). Sclerotium (pl. Sclerotia)

(5). Appressorium (pl. Appressoria)

(6). Haustorium (pl. Haustoria)

(7). Stroma

(8). Snares (hyphal traps)

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Botany lecture notes

Kingdom Fungi: General Characteristics (Key points with PPT)


general characters of fungi ppt

Fungi- Definition, Examples, Structure, Classification & Reproduction

What are fungi? How fungi differ from other plants?

Ø  Fungi (fungus) in Latin literally means mushrooms

Ø  Fungi are eukaryotic organisms with true nucleus and membrane bounded organelles

Ø  They are non-vascular Cryptogams included in Thallophyta along with algae due to their undifferentiated plant body.

Ø  Study of fungi is called mycology and the one who study fungi is called Mycologist

Ø  The word in Latin ‘mykes’ means fungus

Ø  Kingdom fungi includes about 5100 genera and 50,000 species

Ø  Fungi are heterotrophs since they lack chlorophyll

Ø  Fungi cannot synthesize their own carbohydrates using, carbohydrates, water and sunlight.

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