PPTH 104 lecture 3 - True slime molds

Plasmodium

multinucleate trophic stage of myxomycota comprised of protoplasm surrounded by thin plasma membrane

Cellulose

the spore walls of myxomycota are made up of this material

diploid

the ploidy of spores

haploid

the ploidy of swarm cells

sporocarp

this is where the spores are formed

swarm cells

uninucleate cells with 1-4 anteriorly inserted whiplash flagella and amoeboid posterior; capable of feeding, and can function as gametes but cannot undergo cell division

myxamoebae

uninucleate amoeboid cell emerging from spore; capable of feeding, cell division, and can function as gametes; form microcysts under adverse condition

zygote

diploid; formed by fusion of two myxamoebae or swarm cells; begins engulfing food and enlarges through repeated, synchronous nuclear division

plasmodium

multinucleate, wall-less protoplasm, often exhibiting reversible streaming to translocate food particles that are engulfed at leading edge

Sclerotium

resistant stage formed by plasmodium under adverse conditionsspor

Sporophore

entire plasmodium is converted into one or many sporophores, depending on taxa

Phaneroplasmodium

a type of plasmodia that is conspicuous, often colored, with protoplasm forming veins with reversible streaming

Aphanoplasmodium

a type of plasmodia with a network of fine, transparent threads and homogenous protoplasm

Protoplasmodium

a type of plasmodia that is microscopic, with homogenous protoplasm, giving rise to one sporophore

Sporophore

spore bearing or spore forming structure (fruiting body)

capillitium or capillitial threads

where the spores are intermingled inside the peridium

true capillitium

a type of capillitium that is threadlike, often ornamented, developed within the fruiting body

elaters

a type of capillitium that is threadlike, ornamented, not connected at the ends

pseudocapillitium

a type of capillitium that is thread, bristles, membrane, or platelike network

Sporocarp

a type of fruiting body formed from a plasmodium; consists of spores and auxiliary structures such as peridium, columella, capillitium

Aethalium

a sporophore type where it is a large, cushion-shaped sporophore, one per plasmodium

Pseudoaethalium

Cluster of sporophores grouped tightly together

Plasmodiocarp

a type of sporophore where the sporophore is developing along veins of a phaneroplasmodium and takes on reticulate shape of veins

Liceales

order that has a pale or brown spores, capillitium and lime absent, pseudocapillitium may be present

Liceales

order which the Dictydium and Lycogala belongs

Trichiida

the order that has a pale or brightly colored spores and an abundant, conspicuous capillitium

Trichiida

order where the Arcyria and Hemitrichia belongs

Physarales

the order that has purplish-brown spores, usually with abundant and conspicuous lime on or in sporophore

Physarales

the order that Leocarpus, Badhamia, and Fuligo belongs

Stemonitida

the order that usually has violet-brown spores; lime component is absent

Stemonitida

the order that Lamproderma and Stemonitis belongs

Protosteliida

referred as protosteloid amoebozoans, simplest known slime moldsP

Protosteliida

easily mistaken for sporulating structures of mucoraceous fnugi or deuteromycetes