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1
Text Book Of Botany Diversity Of Microbes And Cryptogams
male gametangium female gametangium s warmers Fig. 2. Allomyces
macrogynous: Position of male and female gametangia. After liberating from the
mitosporangia the zoospores swim about for a while, come to rest, round up and
secrete a ...
2
Introduction To Fungi, 3E
The smaller cyst acts as the male gametangium and the bigger one as the female
gametangium. The male gametangium puts out a slender lateral filament, the
conjugation tube, which, on contact with the female gametangium, enlarges at
the ...
Gametangia are easily distinguishable as male and female, with the narrow,
elongated male gametangium being borne on the rounded, large female
gametangium. A number of uniflagellate gametes are formed with in the male
gametangium ...
Through this passage the contents of one cell (behaving as male gametangium)
pass towards the other cell (behaving as female gametangium). The contents
amalgamate, and after the processes of plasmogamy and karyogamy a diploid ...
Now the male gamete moves into the female gametangium through the
conjugation canal and fuses with the female gamete to form the zygospore. It is
commonly seen in S. affinis, S. tenuissima etc. III. Scalariform Conjugation : It
involves two ...
The sex organs, or gametangia (sing., gametangium), of most plants are
multicellular, whereas the gametangia of algae are unicellular (FIG. 27-1). Each
plant gametangium has a layer of sterile (nonreproductive) cells that surrounds
and ...
Eldra Solomon, Charles Martin, Diana Martin, 2014
7
Introductory Botany: Plants, People, and the Environment, ...
When the gametes are released, only the wall of the original cell remains. (c,d) In
plants, gametangia are multicellular, but only the inner cells become gametes. A
protective layer of sterile (nonreproductive) cells surrounds the gametangium.
8
Systematics and Evolution
M. Oogamy A generally accepted definition of oogamous sexual reproduction is
the production of an egg (oosphere or female gamete) in an oogonium (receptor
gametangium) (Figs. 14-25). The occurrence of multiple synchronous meioses in
...
David J. McLaughlin, Karl Esser, Paul A. Lemke, 2001
9
CROP DISEASES AND THEIR MANAGEMENT
In the latter case, the male gametangium is called antheridium (Gr. antheros =
flowery + idion = dimin, suffix) and female gametangium is called the oogonium (
Gr. oon = egg + gonos = off spring). Sexual reproduction involves fusion/union of
...
H. S. CHAUBE, V. S. PUNDHIR, 2005
10
The Genus Coelomomyces
The gametophyte becomes the gametangium, and after dehiscence all that
remains is the transparent wall-like sheath that bounded the gametophyte as it de
— veloped. In C. dodgei and C. punctatus, gametogenesis and most of the
synthesis ...
