25 - Slime Molds

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24 Terms

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Cellular

individual amoebae that aggregate and form more complex structures

<p>individual amoebae that aggregate and form more complex structures</p>
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plasmodial

single, multinucleate large cell

<p>single, multinucleate large cell</p>
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Amoeba

all described slime molds have this phase, typically uninucleate, unicellular, no cell wall, phagocytosis

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sorocarp

cellular slime mold fruiting body

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sporocarp

plasmodial slime mold fruiting body

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Labyrinthulids (net slime molds)

produces slimeways as tracks for cells to glide along, biflagellate zoospores, most marine or estuarine (rarely freshwater), saprobes parasites

<p>produces slimeways as tracks for cells to glide along, biflagellate zoospores, most marine or estuarine (rarely freshwater), saprobes parasites</p>
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Labyrinthula terrestris

rapid blight on turf, occurs due to buildup of sodium, infection through leaf wounds, problematic in golf courses

<p>rapid blight on turf, occurs due to buildup of sodium, infection through leaf wounds, problematic in golf courses</p>
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Labyrinthula zosterae

eelgrass wasting disease, asymptomatic until plant gets stressed, interferes with photosynthesis, outbreak in 1930s killed 90% of eelgrass

<p>eelgrass wasting disease, asymptomatic until plant gets stressed, interferes with photosynthesis, outbreak in 1930s killed 90% of eelgrass</p>
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Plasmodiophora (endoparasitic slime molds)

multinuculate wall-less protoplasts, cannot move, no phagocytosis, live entirely inside host cells, biflagellate zoospores necrotrophic parasites of vascular plants, hypertrophy and hyperplasia

<p>multinuculate wall-less protoplasts, cannot move, no phagocytosis, live entirely inside host cells, biflagellate zoospores necrotrophic parasites of vascular plants, hypertrophy and hyperplasia</p>
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plasmodiophora brassicae

clubroot of cabbage

<p>clubroot of cabbage</p>
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Spongospora subterranea

powdery scab of potatoes

<p>powdery scab of potatoes </p>
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Acrasida (acrasid cellular slime molds)

aggregate behavior, moist soil, organic debris, dung, eats bacteria, yeasts, and decaying vegetation

<p>aggregate behavior, moist soil, organic debris, dung, eats bacteria, yeasts, and decaying vegetation</p>
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Dictyostelids - cellular slime molds

when they run out of food they aggregate, forming pseudoplasmodium with cAMP, and move as a slug to optimal spore dispersal location

<p>when they run out of food they aggregate, forming pseudoplasmodium with cAMP, and move as a slug to optimal spore dispersal location</p>
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Dictyosteloim discoideum

model organism, entire cycle completed in one day

<p>model organism, entire cycle completed in one day</p>
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myxogastrids - plasmodial slime molds

no cell wall, can switch between biflagellated and non flagellated body forms,

<p>no cell wall, can switch between biflagellated and non flagellated body forms, </p>
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Physarum polyceophalum

external spatioal memory similar to pheromone trail for ants but made of slime

<p>external spatioal memory similar to pheromone trail for ants but made of slime</p>
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sporangium

several to many stalked or unstalked spore masses that are sepatrate but formed from a common plasmodium

<p>several to many stalked or unstalked spore masses that are sepatrate but formed from a common plasmodium</p>
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Plasmodiocarp

a spore mass that remains connected and retains the shape of the plasmodium

<p>a spore mass that remains connected and retains the shape of the plasmodium</p>
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Aethalium

a cushion or puffball shaped sporocarop where almost all of the tissues become spores

<p>a cushion or puffball shaped sporocarop where almost all of the tissues become spores</p>
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pseudoaethalium

composite structure composed of several sporangia massed together

<p>composite structure composed of several sporangia massed together</p>
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capillitium

thick hyphal-like cords that provide structure and retain the spores for wind dispersal made by caco3 in slime molds

<p>thick hyphal-like cords that provide structure and retain the spores for wind dispersal made by caco3 in slime molds</p>
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Fuligo septica

dog vomit slime mold

<p>dog vomit slime mold</p>
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Protostelia

formplasmodia and some can form swarmers

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Ceratiomyxa fruticulosa

one of the most common slime molds

<p>one of the most common slime molds</p>