TENDENCIES OF USE OF THE TERM «APOGAMY»
The term «apogamy» is used very little and occupies the
180.962 position in our list of most widely used terms in the
English dictionary.
The map shown above gives the frequency of use of the term «apogamy» in the different countries.
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apogamy
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10 ENGLISH BOOKS RELATING TO «APOGAMY»
Discover the use of
apogamy in the following bibliographical selection. Books relating to
apogamy and brief extracts from same to provide context of its use in English literature.
1
Studies in Spermatogensis and
Apogamy in Ferns...
This is a reproduction of a book published before 1923.
Ruth Florence Allen, 2012
2
On
Apogamy and the Development of Sporangia Upon Fern Prothalli
This is a reproduction of a book published before 1923.
In a similar way, a sporophyte may be produced from a gametophyte without any
union of gametes (apogamy). During natural conditions, these phenomena are
probably much less important than among pteridophytes. However, a wounding ...
Sven Asker, Lenn Jerling, 1992
R. N. Chopra. role in apogamy. As stated earlier, apogamy is known in vivo only
in one diploid moss-Phascum cuspidatum, and in cultures it is induced .with
comparative case in diploid systems, or in mosses with high chromosome
numbers.
5
An introduction to Bryophyta: diversity, development and ...
FACTORS FAVOURING APOGAMY A number of factors have been found to
affect the apogamous response. These can be broadly classified into
endogenous and exogenous. Endogenous Factors In an account of endogenous
factors one ...
There are three basic means of producing sporophytes that do not involve
fertilization: (1) apogamy, (2) bud production and (3) rhizome branching followed
by disintegration of the connection. Apogamy Apogamy is the development of a ...
Klaus Mehltreter, Lawrence R. Walker, Joanne M. Sharpe, 2010
7
An Introduction to Pteridophyta: Diversity, Development, ...
Apogamous sporophytes can also be induced on gametophytes which have
functional sex organs and form sporophytes by syngamy under normal conditions
-'induced ' or 'facultative' apogamy. Induced apogamy is of greater interest ...
8
Botany For Degree Pteridophyta
Regarding the cause of apogamy, several explanations have been put forth.
Lang (1898) induced the formation of sporophytic buds (Fig. 1.2 A), roots,
sporangia (Fig. 1.3) and tracheids in various fern prothalli by avoiding watering of
the ...
A sporophyte, which is produced through apogamy, has the same chromosome
number as the gametophyte from which it is derived. Apogamy often occurs in
diploid gametophytes (Springer, 1935; Lazarenko, 1960, 1963), although it is
also ...
10
Developmental Biology of Fern Gametophytes
13. Apogamy. —. an. alternate. developmental. program. of. the. gametophyte.
Fertilization which heralds the diploid or sporophytic phase, is a normal feature in
the life cycle of ferns and partly accounts for the typical alternation of generations.
