PAROLE IN INGLESE ASSOCIATE CON «APOSPORIC»
aposporic
aposporic
spor
spôr
development
gametophyte
directly
from
sporophyte
without
occurrence
meiosis
spore
formation
merriam
webster
¦apə¦spōrəs
əˈpäspər
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10 LIBRI IN INGLESE ASSOCIATI CON «APOSPORIC»
Scopri l'uso di
aposporic nella seguente selezione bibliografica. Libri associati con
aposporic e piccoli estratti per contestualizzare il loro uso nella letteratura.
For instance, in D. aristatum, a December (early summer in Australia, when
photoperiod was exceeding 13h) sample gave 52.14% aposporic sacs, another
sample collected following February (later summer) showed 78.09% aposporic
sacs ...
2
Cell and Molecular Biology
Aposporic embryo sacs develop from additional cells that differentiate from the
nucellus, and do not involve the archesporial cell or megaspore mother cell.
These cells are called aposporic initials and give rise to unreduced aposporic
embryo ...
3
Apomixis in Angiosperms
Our observations on the genus Zanthoxylum indicate that initial cells of aposporic
embryo sacs at the light microscope level have much in common with those of
adventive embryos. These cells can be located in different parts of the ovule and
...
4
The Flowering of Apomixis: From Mechanisms to Genetic ...
1993; Naumova et al. 1993; Naumova and Willemse 1995; Peel et al. 1997). As
is typical for the functional megaspore in sexuals, aposporic initials, which will
form apomictic embryo sacs, are devoid of callose (Naumova and Willemse 1995
).
Yves Savidan, John G. Carman, Thomas Dresselhaus, 2001
5
Plant Anatomy and Embryology
In grasses, more than one embryo sac may develop in the same nucellus, e.g. in
Poa arctica, the number of aposporic embryo sacs reach upto twelve. In
aposporic forms of family Asteraceae, only one nucellar cell functions as the
mother cell ...
S. N. Pandey, Ajanta Chadha, 1996
6
The Embryology Of Angiosperms, 5E
14.5 Development of aposporic embryo sac ln Hleraclum flagellars. A. A nucellar
cell (arrow marked) near the base of the megaspore tetrad has enlarged to form
an aposporic embryo sac. B. The megaspore tetrad has degenerated and the ...
S P Bhatnagar S S Bhojwani, 2009
7
In Vitro Embryogenesis in Plants
and is able to function without fertilization. In H. aurantiacum, the aposporic
embryo-sac usually originates from a cell of the nucellar epidermis [1, 53]. While
in the aposporic members of most angiosperm families only one nucellar cell acts
as ...
8
Brachiaria: Biology, Agronomy, and Improvement
Ndikumana (1985) compared sexual with aposporic development inside the
embryo sacs of one ecotype of B. brizantha and one of B. decumbens from
Burundi. The apomictic materials from both species showed similar development
of ...
John W. Miles, Brigitte L. Maass, Cacilda Borges Valle, 1996
9
Molecular Breeding for the Genetic Improvement of Forage ...
aposporic. tetraploid. Paspalum. notatum. (Bahiagrass). J.P.A. Ortiz1,2, J. Stein2,
E.J. Martínez1, S.C. Pessino2 and C.L. Quarin1 1Plant Research Central
Laboratory, Agronomy Department, National University of Rosario, (2123)
Zavalla, ...
Mervyn O. Humphreys, 2005
10
Text Book of Botany: Angiosperms
It encroaches upon the megaspore and eventually forms an aposporic embryo
sac (Fig. 3 A,B). As the development of aposporic embryo sac does micropyle
nucellar epidermis normal embryo sac aposporic embryo sac enlarged.
Dr. Singh, Dr. Pande & Dr. Jain
