-
Megaspores, also
called macrospores, are a type of
spore that is
present in
heterosporous plants.
These plants have two
spore types,
megaspores and microspores...
- the megasporangium), and the
female gametophyte (formed from a
haploid megaspore) in its center. The
female gametophyte —
specifically termed a megagametophyte...
- A
megaspore mother cell, or megasporocyte, is a
diploid cell in
plants in
which meiosis will occur,
resulting in the
production of four
haploid megaspores...
- generations. The
spores of seed
plants are
produced internally, and the
megaspores (formed
within the ovules) and the
microspores are
involved in the formation...
- plants. The
smaller of these, the microspore, is male and the
larger megaspore is female.
Heterospory evolved during the
Devonian period from isospory...
- megagametogenesis, the
megaspore,
which arises from megasporogenesis,
develops into the
embryonic sac, in
which the
female gamete is housed.
These megaspores then develop...
- Low
magnification of an ultra-thin
section (length = 0.5 mm) of a
megaspore of
Salvinia cucullata (intermediate lens
micrograph taken with the
ZEISS TEM...
-
undergoes meiosis,
producing four
haploid megaspores. Only one of the four
resulting megaspores survives. This
megaspore undergoes three rounds of mitosis, resulting...
-
megaspores are dis****d from
sporangia either p****ively or by
active ejection.
Microspores produce microgametophytes which produce sperm.
Megaspores...
-
Microspores are land
plant spores that
develop into male gametophytes,
whereas megaspores develop into
female gametophytes. The male
gametophyte gives rise to sperm...
