Related Experiment Video

Updated: Nov 19, 2025

Size Matters: Measurement of Capsule Diameter in Cryptococcus neoformans
08:24

Size Matters: Measurement of Capsule Diameter in Cryptococcus neoformans

Published on: February 27, 2018

14.2K

Cryptococcus neoformans: Sex, morphogenesis, and virulence

Youbao Zhao1, Xiaorong Lin2

  • 1College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, Henan Province, PR China; Department of Microbiology, University of Georgia, Athens, GA 30602, USA.

Infection, Genetics and Evolution : Journal of Molecular Epidemiology and Evolutionary Genetics in Infectious Diseases
|January 26, 2021
PubMed

Insights

Cryptococcus neoformans

Area of Science:

  • Mycology
  • Infectious Diseases
  • Fungal Pathogenesis

Background:

  • Cryptococcus neoformans is a dimorphic fungus causing meningoencephalitis, especially in immunocompromised individuals.
  • Its morphotypes facilitate adaptation to diverse environments and influence pathogenicity.
  • Fungal reproduction generates diversity, aiding adaptation, but its role in infection is unclear.

Purpose of the Study:

  • To review recent findings on cryptococcal life cycle regulation and morphogenesis.
  • To explore the impact of these processes on cryptococcal pathogenicity.
  • To discuss the potential role of meiotic machinery in ploidy regulation during infection.

Main Methods:

  • Literature review of recent discoveries.
  • Synthesis of information on fungal life cycle, morphogenesis, and pathogenicity.
  • Discussion of the meiotic machinery's role in ploidy regulation.

Main Results:

  • Cryptococcal morphogenesis and life cycle regulation are key to adaptation and pathogenicity.
  • Sexual reproduction generates diversity, potentially influencing virulence.
  • The meiotic machinery's role in ploidy during infection warrants further study.

Conclusions:

  • Understanding fungal morphogenesis and sexual reproduction is crucial for deciphering Cryptococcus neoformans virulence.
  • Further research is needed to link meiotic processes directly to cryptococcal infection outcomes.
  • Investigating the interplay between fungal form, reproduction, and pathogenicity can reveal new therapeutic targets.
Keywords:
Cryptococcus neoformansDNA damage responseDimorphismHost-pathogen interactionsMeiosisMorphogenesisPathogenesisPloidySexual cyclesVaccination

More Related Videos

Automated Measurement of Cryptococcal Species Polysaccharide Capsule and Cell Body08:08

Automated Measurement of Cryptococcal Species Polysaccharide Capsule and Cell Body

Published on: January 11, 2018

7.6K
Biolistic Transformation of a Fluorescent Tagged Gene into the Opportunistic Fungal Pathogen Cryptococcus neoformans07:32

Biolistic Transformation of a Fluorescent Tagged Gene into the Opportunistic Fungal Pathogen Cryptococcus neoformans

Published on: March 19, 2015

10.3K

Related Concept Videos

Fungal Phylum Microsporidia01:28

Fungal Phylum Microsporidia

Microsporidia are a group of obligate intracellular fungi that were initially classified as protists but were later reclassified based on phylogenetic, molecular, and structural evidence linking them to the Chytridiomycota. These unicellular, non-motile organisms are highly specialized parasites that infect a wide range of animal hosts, including humans. They have evolved extensive genomic and metabolic reductions, making them highly dependent on their hosts for survival.Morphology and Genomic...
260
Cystic Fibrosis: Pathogenesis01:23

Cystic Fibrosis: Pathogenesis

Cystic fibrosis (CF), an autosomal recessive disorder, significantly affects the function of exocrine glands. This genetically inherited disease is characterized by the production of thick and sticky mucus, which can severely affect various organs and systems in the body.
CF is primarily caused by a genetic mutation in a chromosome 7 gene coding for the cystic fibrosis transmembrane conductance regulator (CFTR) protein. The most common gene mutation leading to CF is the ΔF508 mutation,...
550
Microbial Morphologies01:29

Microbial Morphologies

Bacterial and archaeal cells exhibit remarkable diversity in shape and structure, critical in their adaptability and functionality. Among bacteria, the most commonly observed shapes include cocci and bacilli. Cocci are spherical and may exist singly or in groupings such as pairs (diplococci), chains (streptococci), clusters (staphylococci), or tetrads. Bacilli, in contrast, are rod-shaped and can also occur as single cells, in pairs, or chains, depending on their environmental and genetic...
1.5K
Diversity of Protists II01:27

Diversity of Protists II

Alveolates are a group of organisms recognized by the presence of alveoli, which are cytoplasmic sacs located beneath the cell membrane. While their function remains uncertain, alveoli may help regulate water balance by controlling how much water enters and leaves the cell. In dinoflagellates, these structures may serve as armor plates. There are three major types of alveolates: ciliates, which move using cilia; dinoflagellates, which use flagella for movement; and apicomplexans, which are...
607
Sexually Transmitted Infections01:26

Sexually Transmitted Infections

Sexually transmitted infections (STIs) are diseases transmitted primarily through unsafe sexual interactions. Bacteria, viruses, or parasites cause them and can result in severe health complications if untreated.ChlamydiaThe bacterium Chlamydia trachomatis is responsible for the disease Chlamydia, the most common STI in the United States. This peculiar pathogen requires human cells to reproduce, residing intracellularly. The initial infection often goes unnoticed because it typically does not...
590
Background and Environment Affect Phenotype02:27

Background and Environment Affect Phenotype

Although the genetic makeup of an organism plays a major role in determining the phenotype, there are also several environmental factors, such as temperature, oxygen availability, presence of mutagens, that can alter an organism’s phenotype.
An example of how genetic background affects phenotype can be seen in horses. The Extension gene in horses is responsible for their coat color. A wild-type gene (EE) produces black pigment in the coat, while a mutant gene (ee) produces red pigment. A...
7.1K