Concept explainers
To determine: Whether the given data support the hypothesis and if stump removal reduces effects of A. ostoyae.
Introduction: Parasitic
To determine: Whether the stump removal reduces the effects of A. ostoyae or not.
Introduction: Parasitic fungi attack plants and withdraw nutrients from them. Armillaria ostoyae (honey mushroom) is an example of fungal parasite. They attack the root systems of living trees. When the tree dies, the fungal parasite survives on the dead remains. The hyphae that grow from roots of infected trees and dead stumps invade roots of healthy plants leading to infection.
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Biology: The Unity and Diversity of Life (MindTap Course List)
- Assume you have an invasive fungus species growing in your backyard and you want to get rid of it. You decide to remove them from the ground by hand and dispose them in a corner because they will die off anyways. Few days later, you see even more fungi growing where you remove the original fungus. Why do you think that happened?arrow_forwardThe mycelium of a multicelled fungus is a mesh of filaments, each called a_______ . a. septa b. hypha c. sporearrow_forwardIf all of the saprophytic fungi in an ecosystem died, which of the following would be a likely short-term result? Group of answer choices Plants would not be able to absorb nutrients from the soil as effectively Dead plant material would be decomposed more quickly, releasing higher levels of CO2 Less carbon dioxide would be released into the atmosphere because dead plant material would not be decomposed Plants would be unable to absorb nitrogen as efficiently because their root symbiotic fungi would be unable to break gaseous nitrogen apart Plants would be unable to absorb nitrogen as efficiently because their root symbiotic fungi would be unable to break gaseous nitrogen apartarrow_forward
- Glomeromycete fungi and plants take part in a mycorrhiza that ____. benefits the plant, but harms the fungus benefits the fungus, but harms the plant harms both the plant and the fungus allows the fungus to use its host to disperse spores benefits both the plant and the fungusarrow_forwardWhen a fungus infects a plant, it (a) infiltrates leaves with lichens (b) forms relationships by attaching mycorrhizae to stems (c) secretes powerful digestive juices onto the leaves (d) uses haustoria to dissolve roots (e) enters leaves or stems through stomataarrow_forwardWhat steps would it take for a fungus to establish a symbiotic relationship with plants? I understand that there are symbiotic soil fungi that are entangled amongst plant roots but this question I am wondering how they form a relationship if the fungus live between the plant cells.arrow_forward
- Mutualistic associations between fungi and the roots of plants are called (a) lichens (b) mycorrhizae (c) pathogenic associations (d) parasitic haustoria (e) mycotoxic symbiosesarrow_forwardA more recent threat to tree survival is a fungus in the genus Phytophthora which can kill full-grown trees. Studies indicate that the fungus can arrive via footwear of hikers. What is a possible solution to reduce fungus arrival or prevent the fungus on footwear from reaching the trees?arrow_forwardThe Armillaria fungus species that grew to massive size inOregon harms trees in the forests it inhabits. As the fungusfeeds on roots, it causes “root rot” that weakens or kills trees.This root rot provides aboveground evidence of Armillaria’sexistence; the giant Oregon specimen was first identified byexamining aerial photos to find forested areas with many deadtrees. Can people, as well plants, be victims of fungal attack?arrow_forward
- Ambrosia bark beetles carryAmbrosiella fungal spores to trees, then bore holes and lay their eggs with the fungus. When the new larvae hatch, they eat the fungus that has germinated in the holes. Describe how this relationship can be classified as mutualistic.arrow_forwardWhich of the following is an example of a symbiosis between an Ascomycete and a green algae? Group of answer choices Ferns Rhizobium and Plants Lichens Mycorrhizal Fungi and Plants Hornwortsarrow_forwardFungi are plants that lack: A. Oxygen B. Carbon dioxide C. Chlorophyll D. None of thesearrow_forward
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