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12 Cards in this Set

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Zoospore

asexual spore that uses flagella for locomotion

asexual spore that uses flagella for locomotion

Ash yellows

overall yellowing, twig dieback, suppressed trunk growth, chlorotic leaves, epicormic sprouts on trunk

Sudden Oak Death

damping off of seedlings, stem canker, chlorotic foliage, wilting, shoot dieback, stunted growth, collar rot

Phytothora ramorum on rhododendron

leaf spots, small branch dieback, lesions extend from top to bottom

Ectomycorrihizae


Wetwood

produces slimeflux, causes darkening of inner wood ("wet")

Fruiting bodies of phellinus weirii

white pocket rot, affects douglas fir, spruce, larch, & cedar

Melampsorella on fir

pycnia, aecia, uredia, yellow to pale green brooms

Teliospores of Gymnosporangium


Truffles

mycorrhizae fruiting body, rounded top, can be eaten

mycorrhizae fruiting body, rounded top, can be eaten

White Rot

lignin degradation (selective or simultaneous), cellulose/hemicellulose degradation, discoloring of wood, cell wall destruction

Soft Rot

loss of wood strength, cavities in cell walls, erosion, tunneling, wet or waterlogged environments, pH membrane degradation, scavenging bacteria