Plant Pathology Jeopardy
GENERAL PLANT PATHOLOGY (upper level undergraduates, some graduate students)
Categories: (choose 6): Survival Structures, X-rated (thanks to Margie Daughtrey), Wow Worms!, Totally Trees, Those Crazy Rusts, Toxics and Tasties, Words that Start with a “P”, Famous Plant Pathologists, Prokaryotes
SURVIVAL STRATEGIES(choose 5)
$100 Both Sclerotinia sclerotiorum and Sclerotium rolfsii survive as these structures.
SCLEROTIA (good for a laugh)
$200 These host-specific nematodes die and form a container for their eggs.
$300 Fusarium, Phytophthora and Thielaviopsis produce these asexual survival structures.
$400 Called “exogenous dormancy” this phenomenon keeps spores from germinating too soon.
$500 A vase-shaped (flask-shaped) fruiting body containing bitunicate asci.
$500 The seeds of this plant parasite wait for a signal from host root exudates before germinating.
$100 Phytoplasma disease of cherries and peaches.
$200 Diseased tissue consumer in Mexico.
$300 Fungi with a naked ascus.
$400 Fungus that causes pinkster galls on azaleas and other ericaceous plants.
$500 What do mating types A1 and A2 do then they find their thrill on Green Mountain potatoes.
SEXUAL REPRODUCTION/ MAKE OOSPORES
WOW, WORMS (choose 5)
$100 Nematodes in which the female becomes a protective container for eggs.
$100 Feeding structure of plant-parasitic nematodes.
$200 Genus of root-knot nematodes.
$300 A nematode disease of coconut palm vectored by palm weevils.
$400 An imported pathogen, this nematode is causing serious forest destruction in Japan.
PINE WOOD/ Bursaphalenchus xylophilis
$500 A nematode genus that includes virus vectors.
several correct answers
TOTALLY TREES (choose 5)
$100 Hosts of white pine blister rust.
PINE/GOOSEBERRIES AND CURRANTS
$200 Root disease - signs are rhizomorphs, mycelial fans and mushrooms.
$300 Potential biocontrol for chestnut blight.
$300 A disease of the vascular cambium.
$400 Overgrowth of the propoplast of a parenchyma cell into an adjacent xylem vessel of tracheid.
$500 Genus of dwarf mistletoe.
THOSE CRAZY RUSTS (choose 5)
$100 Spores known as the “repeating stage”.
$200 Overwintering spores.
$300 A term for a rust fungus that requires only one host to complete its life cycle.
$300 The area traveled each year from Mexico to Canada by cereal urediniospores.
THE PUCCINIA PATHWAY
$400 Rust fungi that require two host species.
$500 The alternate host of coffee rust.
$500 Why insects are attracted to plants recently infected by rust basidiospores.
HONEYDEW IN SPERMOGONIA/PYCNIA
TOXICS AND TASTIES (choose 5)
$100 This blue-green fungus is cultivated for a cheese commonly used in salad dressing.
$200 The source of xanthan gums used in many food preparations.
$200 Called the “maize mushroom” by gourmets, this fungus is highly prized in Mexico.
CORN SMUT/ USTILAGO MAYDIS
$300 Producer of aflatoxin, this fungus is a common storage pathogen of corn and peanuts.
$300 Premium wines can be made if this fungus infects grapes under the right conditions.
$400 Many people died of St. Anthony’s fire in the middle ages after eating the sclerotia of this fungus.
$500 This fungus causes edible galls to form on rhododendrons and other ericaceous plants.
WORDS THAT START WITH A “P” (choose 5)
$100 Meaning “plant destroyer” this Oomycete genus includes many devastating pathogens.
$200 Vase-shaped asexual fruiting body.
$300 A common rust genus including pathogens of wheat, hollyhock and asparagus.
$300 Vase-shaped sexual fruiting body.
$300 Defense compounds produced by plants.
$400 Cytoplasmic strands between cells through which viruses may move from cell to cell.
$400 Having hairs or flagella over the surface of a bacterium.
$500 Lesion nematodes.
FAMOUS PLANT PATHOLOGISTS (choose 5)
$100 He first proved convincingly that fungi cause plant diseases.
$200 He gave us the rules that prove an organism causes a disease.
ROBERT KOCH (not a plant pathologist)
$300 His work led to the gene-for-gene theory.
$400 Father of U.S. nematology, from Spencer MA
$400 He tried to save the coffee from rust in Ceylon.
H. MARSHALL WARD
$400 His common last name resulted in an important bacterial genus named for his first name.
ERWIN F. SMITH
$500 South African plant pathologist described epidemics in terms of simple interest and compound interest diseases.
$100 A sign (not a symptom) of bacterial infection in plants.
$200 This bacterium is a plant pathogens and a natural genetic engineer.
$300 A gram-positive genus of plant-pathogenic bacteria.
several correct answers
$400 A general term for a prokaryote with no cell wall.
$500 Pathogens that cause water stress symptoms and are difficult to culture.
XYLEM-LIMITED FASTIDIOUS BACTERIA
FINAL JEOPARDY QUESTIONS
During the Holy Fire epidemics of the Middle Ages, this Saint received many prayers.
He figured out the heteroecious life cycle of rusts.
A romantic plant parasite.
What do the letters hrp of hrp genes stand for?
HYPERSENSITIVE RESPONSE AND PATHOGENICITY
What do the letters RAPD stand for?
RANDOM AMPLIFIED POLYMORPHIC DNA
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Updated: July 7, 2001