Problema 15 · Biología URV Test Practice: Eukaryotes and Fungi

a. Which fungal phylum contains devastating biotrophic plant pathogens such as rusts (Pucciniales) and smuts (Ustilaginales)?

Solución: c) Basidiomycota

b. Which fungal group has a sexual fruiting cycle where the primordial sporocarp initially develops as an underground 'button'?

Solución: d) Basidiomycota

c. Which chytrid species is the causative agent of potato wart disease?

Solución: b) Synchytrium endobioticum

d. Which major group of fungi serves as the primary agent of wood decay (cleaving both lignin and cellulose)?

Solución: b) Basidiomycota

e. Which fungi develop resistant zygospores following gametangial conjugation?

Solución: a) Zygomycota

f. What is the technical mycological term for the macroscopic fruiting body of a basidiomycete?

Solución: c) Basidiocarp

g. What metabolic lifestyle characterizes Saccharomyces cerevisiae in varying oxygen levels?

Solución: b) Facultative aerobe (capable of both oxidative respiration and ethanol fermentation)

h. What morphological feature defines coenocytic hyphae?

Solución: b) Absence of regular transverse septa along the vegetative hypha

i. What are specialized hyphae that bear and generate conidia in Ascomycota called?

Solución: b) Conidiophores

j. Which chytrid fungus is responsible for fatal cutaneous infections in amphibians worldwide?

Solución: a) Batrachochytrium dendrobatidis