The comparison of different responses to the light stimuli between partners of wild and mutant type. Introduction: The fungus Cryptococcus neoformans is a pathogen found in patients with weakened immune system like HIV/AIDS (Human immunodeficiency virus/Acquired immunodeficiency syndrome) patients. It is a dangerous pathogen that causes cryptococcosis with severe symptoms like encephalitis and pneumonia-like illnesses. It thrives well in dark places, which is suitable for sexual reproduction, whereas light inhibits the sexual reproduction process by affecting the development of dikaryon stage.

Question

Want to see the full answer?

Answer 1

Question

Chapter 30, Problem 1ITD

Summary Introduction

To review:

The comparison of different responses to the light stimuli between partners of wild and mutant type.

Introduction:

The fungus Cryptococcus neoformans is a pathogen found in patients with weakened immune system like HIV/AIDS (Human immunodeficiency virus/Acquired immunodeficiency syndrome) patients. It is a dangerous pathogen that causes cryptococcosis with severe symptoms like encephalitis and pneumonia-like illnesses. It thrives well in dark places, which is suitable for sexual reproduction, whereas light inhibits the sexual reproduction process by affecting the development of dikaryon stage.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Students have asked these similar questions

In the pictures below, identify the arrowed reproductive structures of microscopic cyanobacteria based on the following descriptions: Akinetes are dormant structures larger than the vegetative cells, are rich in food reserves, and have thick walls. Most filamentous cyanobacteria develop akinetes in adverse conditions (e.g., winter, dry periods). When favorable conditions return, they germinate and produce new filaments. Hormogonia are short pieces of filaments consisting of 5–15 trichomes that fragment and develop into new filaments. Heterocytes (or heterocysts) are multicellular structures that have a thick and massive sheath, formed by members of the Nostocales. It is the location of the enzyme nitrogenase for nitrogen fixation, the conversion of nitrogen gas into ammonium and then amino acids. They may be intercalary or terminal in position and may germinate from either end or both the ends to give rise to new filaments. Non-filamentous cyanobacteria generally produce spores…

In secondary endosymbiosis, the plastid organelle is derived from engulfing Prokaryotic algal cell. an True False

An infectious disease research group is studying a microbe that can cause infections and gastrointestinal disease in humans, and which can also survive and reproduce in hamsters. A dormant cyst form of the microbe infects human hosts through fecal-oral transmission if they come in contact with hamster droppings and don’t wash their hands before eating. The organism exhibits active, motile morphological forms at other stages of its life cycle. Sexual reproduction (fusion of haploid gametes) occurs in the hamsters; only asexual reproduction occurs in humans. It has a nucleus, but does NOT have a cell wall. This microbe could be which of the following? Protozoan Fungus Bacterium Virus