16 Flashcards
sub hymenium
site where asci are originally generated from
describe the asci of Aleuria
operculate
describe the hymenium of Aleuria
contains paraphyses & asci
describe the FB of Aleuria
cup like
describe the cells of Discomycetes
angular
not hyphal (unlike Basidiomycota)
describe the apothecium of Ascobulus
outer layer, ectal excipulum can be a variety of thicknesses
hymenium contain paraphyses
epigeous
describe the spore dispersal of Ascobulus
asci stick together & ascospores shoot off as a mass
describe the apothecium of Tuber
hypogeous
closed
asci are scattered
contains a gleba with a peridium covering
how many ascospores does Tuber produce?
4 - only a meiotic division, not mitosis
what do stalk cells give rise to?
asci
paraphyses
ectal & medullary excipulum
what does the asci mother cell form from?
crozier
what is a hymenium layer dependent on?
plasmogamy, karyogamy & meiosis
what forms the hymenium in apothecia?
branching of ascogenous hyphae
what do paraphyses originate from?
the stalk cell as monokaryotic hyphal cells
what is the outer surface of the apothecium derived from?
parenchymatous-like cells (interwoven hyphae)