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Oligohymenophorea (formerly Nassophorea): Peniculida: Parameciidae

Paramecium caudatum
Ehrenberg, 1838

Genus: Cigar- or foot-shaped; a single macronucleus and 1 to several vesicular or compact microuclei (Kudo, 1966).
Species: 180-300 μm long; a compact micronucleus; two contractile vacuoles (Kudo, 1966). Cylindrical or cigar-shaped; rounded anteriorly, pointed posteriorly; one large compact micronucleus ("caudatum" group) approximately 8 μm diam.; two contractile vacuoles; 170-290 μm long (Wichterman, 1986). Elongate, rounded anteriorly, pointed posteriorly; caudal cilia present; 180-280 μm long; a single macronucleus with a single micronucleus; two contractile vacuoles (Carey, 1992).
Vegetative cells
Paramecium caudatum, intact cells
intact cells
by H. Horikami
by Y. Tsukii
Paramecium caudatum, intact cells
intact cells
by A. Yanagi
by K. Mikami
Paramecium caudatum, food vacuole
Food-vacuole
formation
Paramecium caudatum
Food-vacuole
formation
Paramecium caudatum, Cells stained with Azure C
Azure C staining

Azure C staining
Paramecium caudatum, cell division
Cell division
Paramecium caudatum, Silver-stained cells
Silver-stained
Sexual reproduction
Paramecium caudatum, Mating reaction
mating reaction
Paramecium caudatum, Holdfast union
holdfast union
Paramecium caudatum, paroral union
paroral union
Paramecium caudatum
meiosis

nuclear events
by K. Mikami

micronuclear process
by A. Yanagi
Paramecium caudatum, micronuclei during conjugation
behavior of micronuclei
by A. Yanagi

nuclear exchange
by A. Yanagi
Paramecium caudatum, conjugating pairs
Conjugating pair
2n x 0

heat shock
by M. Takahashi
Paramecium caudatum, conjugation
Schemes
of conjugation
Paramecium caudatum, augogamy
Autogamy
induced
by methyl urea
by A. Yanagi
Organelle / Inclusions
Paramecium caudatum, Trichocysts
trichocysts
Paramecium caudatum
mitochondria
Paramecium caudatum
inclusion bodies
DNAs
Paramecium caudatum
mtDNA
trees/protocol

mtDNA
RFLP
Paramecium caudatum, Mitochondrial plasmids
mt Plasmids
Gel

mt Plasmids
RAPD
RAPD patterns of macronuclear genomes

Series Old
RFLP

Series New
RFLP

Series II
RFLP

Series III
RFLP

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