Q6a-Plant Disease & Defense pt 1 Flashcards
A micro-organism or parasite that markedly degrades a plant’s health or causes severe dysfunction is a…
Pathogen
A pathogen that lives as a parasite and needs its host alive to complete its life cycle and extracts its nourishment from living cells is a…
Biotroph
A pathogen that kills the host’s cells and tissues and then feeds on the dead remains is…
Necrotroph
Phylogenetically, fungi belong to Eukarya ‘supergroup’ as…
Animals
Dutch elm disease, chestnut blight, rust disease, powdery mildew and many types of leaf spots are caused by…
Fungi
Individual filaments of a fungus are called…
Hyphae
The ‘bud rot’ (fungus) that destroys th flowering shoots (often other parts) of a marijuana plant is a…
Necrotroph
Powdery mildew growing on the leaves of a rose plant is…
both Fungus & Biotroph
The Irish potato famine that caused many Irish to move to the United States in the 1800s was caused by….
The oomycete Phytophthora Infestans
Oomycetes are part of the same Eukarya ‘supergroup’ as…
diatoms, brown seaweeds, and kelps
What phylogenetic group of pathogens causes the most plant diseases?
Fungi
