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What characteristics of pathogenic fungi result in their being efficiently transmitted?

Short Answer

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The characteristics of pathogenic fungi that result in their being efficiently transmitted to host organisms are the hardy spore stage and the ability to grow in a favorable new environment.

The hardy spore aids in dispersal and withstands unfavorable conditions.

Step by step solution

01

Fungi

Fungi are eukaryotic organisms. Fungus is a spore-producing organism and reproduces both asexually or sexually. The typical habitats of fungi are soil and water.

Some fungi play a crucial role in biogeochemical cycles, while others can also be parasitic.

02

Pathogenicity

The ability of an organism to produce damage or disease in a host is known as pathogenicity. Fungi capable of causing harmful diseases are called pathogen or pathogenic fungi.

Just as fungi have ecological benefits and can be beneficial, they can also be toxic or threaten other organisms. Infection caused by a pathogenic fungus is called mycosis.

03

Characteristics of pathogenic fungi aiding in the transmission

Transmission of pathogenic fungi takes place in several ways. The common pathway includes escape from an already infected host and traveling to infect a new host. The infection begins with the fungal spores.

For instance, in plants, these spores germinate and penetrate the host tissue. After it enters the host, the pathogenic fungus continues to grow and cause disease in the host.

The characteristics of pathogenic fungi that aid in their being transmitted are the hardy spore stage and the ability to grow in a favorable new environment. While they multiply rapidly under suitable conditions, they capitalize on the host鈥檚 resources.

The spores are hardy and can withstand unfavorable conditions. The spores disperse and grow under favorable conditions and aids in successful transmission.

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Most popular questions from this chapter

The grass Dichantheliumlanuginosum lives in hot soils and houses fungi of the genus Curvularia as endophytes. Researchers tested the impact of Curvularia on the heat tolerance of this grass. They grew plants without (E-) and with (E+) Curvularia endophytes at different temperatures and measured plant mass and the number of new shoots the plants produced. Draw a bar graph for plant mass versus temperature and interpret it.

Table 2 shows data from gene expression studies for the four L.bicolor genes whose transcription was most increased (鈥渦pregulated鈥) in mycorrhizae. (a) For the gene encoding the first protein listed, what does the number 22,877 indicate? (b)Do the data in Table 2 support your hypothesis in 2(c)? Explain. (c) Compare the data for poplar mycorrhizae with those for Douglas fir and hypothesize what might account for any differences.

The most important adaptive advantage associated with the filamentous nature of fungal mycelia is

(A) the ability to form haustoria and parasitize other organisms.

(B) the potential to inhabit almost all terrestrial habitats.

(C) the increased chance of contact between mating types.

(D) an extensive surface area well suited for invasive growth and absorptive nutrition.

The closest relatives of fungi are thought to be the

(A) animals.

(B) vascular plants.

(C) mosses.

(D) slime molds.

Review Figure 10.4 and Figure 10.6. If a plant has mycorrhizae, where might carbon that enters the plant鈥檚 stomata as CO2 eventually be deposited: in the plant, in the fungus, or both? Explain.

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