Algae, Tree, Herbs, Bush, Shrub, Grasses, Vines, Fern, Moss, Spermatophyta, Bryophyta, Fern Ally, Flower, Photosynthesis, Eukaryote, Prokaryote, carbohydrate, vitamins, amino acids, botany, lipids, proteins, cell, cell wall, biotechnology, metabolities, enzymes, agriculture, horticulture, agronomy, bryology, plaleobotany, phytochemistry, enthnobotany, anatomy, ecology, plant breeding, ecology, genetics, chlorophyll, chloroplast, gymnosperms, sporophytes, spores, seed, pollination, pollen, agriculture, horticulture, taxanomy, fungi, molecular biology, biochemistry, bioinfomatics, microbiology, fertilizers, insecticides, pesticides, herbicides, plant growth regulators, medicinal plants, herbal medicines, chemistry, cytogenetics, bryology, ethnobotany, plant pathology, methodolgy, research institutes, scientific journals, companies, farmer, scientists, plant nutrition
Select Language:
 
 
 
 
Main Menu
Please click the main subject to get the list of sub-categories
 
Services offered
 
 
 
 
  Section: Introduction to Botany » The Basidiomycetes
 
 
Please share with your friends:  
 
 

The Basidiomycetes

 
     
 
Content
The Basidiomycetes
  Rusts
  Smuts
  Puffballs
  Mycorrhiza
Basidiospores are most commonly formed on a clubshaped hypha, butalso can take the form shown at left. In the lower right-hand comer, the fusion of nuclei to create the diploid condition, which is then followed by meiosis to produce haploid basidiospores.
Figure 20-1 Basidiospores are most
commonly formed on a clubshaped hypha, but
also can take the form shown at left. In the
lower right-hand corner, the fusion of nuclei to
create the diploid condition, which is then
followed by meiosis to produce haploid
basidiospores.














The Basidiomycetes are the “club fungi,” so-called because the sexual spores, called basidiospores, are borne on a club-shaped hypha, called the basidium. The typical number of basidiospores is four. Basidiomycetes includes mushrooms, toadstools, mildews, molds, smuts, rusts, puffballs, earth stars, bracket fungi, jelly fungi, bird’s nest fungi, and stinkhorns. Approximately 100,000 species have been described and perhaps twice that number await discovery. The class is divided into two subclasses, one of which includes the rusts and smuts, and the other of which includes the mushrooms, bracket fungi, and puffballs. The hyphae are septate but with a remaining central pore, which makes a continuous channel for cytoplasm between adjacent cells. The mycelium, which forms after the sexual cycle, is typically binucleated. Nuclear fusion occurs just prior to the formation of basidiospores, which are produced by meiotic divisions.

 
     
 
 
     



     
 
Copyrights 2012 © Biocyclopedia.com | Disclaimer