Concept explainers
To answer:
Without reference to genetic sequences, mycologists are certain that none of the septate, filamentous Deuteromycetes will be shown to make zygospores. How can they be certain, when the sexual stages of Deuteromycetes are still unknown?
Introduction:
Deuteromycetes are commonly known as imperfect
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Chapter 12 Solutions
EBK MICROBIOLOGY:W/DISEASES BY BODY...-
- Which of the following cells or structures areassociated with asexual reproduction in fungi?(A) ascospores(B) basidiospores(C) zygosporangia(D) conidiophoresarrow_forwardComplete the following table distinguishing the true fungi phyla based on reproduction. SEXUAL reproduction through conjugation of 2 different mating strains ASEXUAL reproduction by conidial ASEXUAL reproduction by spores (produced in sporangia) ASEXUAL reproduction by conidia (produced on tips of conidiophores) or budding Do not perform SEXUAL reproduction. SEXUAL reproduction by fusion of 2 mating types of monokaryotic hyphae. Resulting dikaryotic mycelium often develops basidiomata SEXUAL reproduction through the union of male and female structures, followed by formation of asci ASEXUAL reproduction by zoospores (produced in zoosporangia) ASEXUAL reproduction is rare, but can occur by conidia. SEXUAL reproduction through fusion of two motile or non-motile gameres PHYLUM Chytridiomycota The Chytrids Zygomycota: The Coenocytic True Fungi Ascomycota: The Sac Fungi Basidiomycota: The Club Fungi Deuteromycota: The Imperfect Fungi ASEXUAL SEXUAL REPRODUCTION REPRODUCTIONarrow_forwardWhy are zygomycetes called conjugation fungi?arrow_forward
- Molds from the Rhizopus genus are probably the best known species of zygomycete fungi. Please find photograph of a Rhizopus species zygosporangium (an actual photograph, not a drawing). Label the zygosporangium and upload it.arrow_forwardDefine germ pore. Differentiate between amyloid, dextrinoid (pseuodamyloid), and inamyloid reactions. Describe the reactions that result in cyanophilous structures and metachromatic structures. Describe the mitic system of mushrooms.arrow_forwardExplain the meaning of the term tetrad as applied to theasci produced by certain fungi.arrow_forward
- Fungi tend to reproduce sexually when nutrients are limited or other conditions are unfavorable, but they reproduce asexually in more ideal conditions. Why is this strategy successful? Please add a reference website, and an example if possiblearrow_forwardCompare and contrast the following types of asexual fungal spores: sporangiospore, arthrospore, conidiospore, and blastospore.arrow_forwardDescribe how homothallism (amphithallism) can be achieved by packaging multiple nuclei into basidiospores. Differentiate between simple holobasidia, tuning-fork basidia, longitudinally septate phragmobasidia, and transversely septate phragmobasida. Describe, in general terms, some of the problems with the traditional classification of the “gilled mushrooms” given what we know about fungal evolution.arrow_forward
- Comparison of microscopic morphology of representative zygomycetous and ascomycetous molds. Genus Septa in mycelium (-/+) Septa in conidiophore/ sporangiophore (-/+) Branching in conidiophore/ sporangiophore (-/+) Location of asexual spores (internal or external) Rhizopus Aspergillus Penicilliumarrow_forwardList the distinguishing properties of actinoplanetes. What other actinomycetes form motile spores?arrow_forwardFrom an evolutionary point of view, how can you explain the production of so many eggs and cercaria during the life-cycle of Schistosoma?arrow_forward
- Biology (MindTap Course List)BiologyISBN:9781337392938Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. BergPublisher:Cengage Learning
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