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Tetraspores are red
algae spores produced by the
tetrasporophytic (diploid)
phase in the life
history of
algae in the
Rhodophyta as a
result of meiosis...
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Tetraspores of Polysiphonia...
- sporophyte. The
sporophyte then
undergoes meiosis to
produce haploid tetraspores (which can be male or female) that
develop into gametophytes. The three...
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thalloid algae.
Specimens can
reach around 2 mm in size and
produce tetraspores. Some
currently recognised species:
Botrydium becherianum Botrydium corniforme...
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diploid plant.
Tetraspores occur in
scattered patches sori (spores) on the
mature diploid blade. The
adult tetrasporophyte produces tetraspores meiotically...
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twenty days
these are mature, 20 mm (0.8 in) long or more, and
produce tetraspores in
concentric rings a
millimetre or so wide. By the time the
frond reaches...
- singly. with a
narrow ostiole from
which carpospores are released. The
tetraspores occur in
spiral series resulting from a
simultaneous division into 4...
- sporangiospore, sporangium, spore, sporocarp, sporophyte, teliospore,
tetraspore, tetrasporophytic,
zygospore spele-
cavern Gr**** σπέος (spéos), σπήλαιον...
-
largest type of
spore (larger than bispores,
which are
larger again than
tetraspores). The wall of the
carposporangium then
breaks down,
releasing the spores...
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patterns of
darker and
lighter tissue akin to tree rings.
Zonaria produces tetraspores.
Zonaria is
widespread with some
species being locally abundant upon...
