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10 BÜCHER, DIE MIT «NUCELLUS» IM ZUSAMMENHANG STEHEN
Entdecke den Gebrauch von
nucellus in der folgenden bibliographischen Auswahl. Bücher, die mit
nucellus im Zusammenhang stehen und kurze Auszüge derselben, um seinen Gebrauch in der Literatur kontextbezogen darzustellen.
1
The Encyclopedia of Seeds: Science, Technology and Uses
of cycads contains mucilage canals. (See: Seedcoats — structure) Two other
structures derived from maternal tissues are evident in many gymnosperm seeds:
the nucellus and megaspore membrane. The nucellus is the multi-celled inner ...
J. Derek Bewley, Michael Black, Peter Halmer, 2006
2
Reproductive Versatility in the Grasses
The two ovular envelopes, the integuments, enclose and protect the central
tissue, the nucellus. The integuments and the nucellar epidermis can be
cutinized and prior to fertilization these tissues may control access to the
megasporophyte, ...
Geoffrey Peter Chapman, 1990
The development of the female gametophyte The seed-bud of gymnosperms
consists of an integument and the nucellus included in it (bitegmental seed-buds
occur in Ephedra, Welwitschia, and angiosperms; Ephedra has even three ...
4
Annual Plant Reviews, Fruit Development and Seed Dispersal
Cell proliferation in developing ovules is impaired in thesin1mutant which is
female sterile due to the uncoordinated growth of the integuments and over-
proliferation of the chalazal nucellus (Robinson-Beers et al., 1992; Lang et al.,
1994).
5
Diversity and Systematics of Seed Plants
The protuberance develops to form nucellus. The neighbouring cells at the base
of the nucellus become meristematic. they grow upwards and form integument.
The integument surrounds the nucellus, except at the top, where a small pore, ...
Dr. Singh, Dr. Pande & Dr. Jain, 2009
6
Botany For Degree Gymnosperm (M.E.)
8.12) in the cycads consists of a nucellus surrounded by a single integument with
a distinct micropyle at the distal end. The integument is free for its major part from
the nucellus during early stages in development, but at maturity only one-third ...
P C Vashishta, A K Sinha, Anil Kumar, P.C.Vasishta
7
Text Book of Botany: Angiosperms
Dr. Singh, Dr. Pande & Dr. Jain. Grevillca, the micropyle is filled with a
mucilagenous substance secreted by nucellus or the integuments, which
probably facilitates the entry of pollen tube in the ovule. [Ill] Nucellus Nucellus is a
rounded or oval ...
Dr. Singh, Dr. Pande & Dr. Jain
8
Flower Seeds: Biology and Technology
Diagrammatic illustration of ovule development: A - integument beginning to
surround the nucellus; B - further integument development; C - elongation of
funiculus and ovule; D - integuments surround nucellus except for micropylar
opening ...
M. B. McDonald, Francis Y. Kwong, 2005
9
Handbook on Plant and Cell Tissue Culture
Nucellus is the main bulk of ovule in seeds. It is diploid and parenchymatous. A
portion of nucellus is excised from fertilized ovule and cultured into embryoid.
The embryoid is then grown into a plantlet. Such plants are free from viruses.
NIIR Board of Consultants and Engineers, 2005
A vascular strand typically traverses from the base of the funiculus to the nucellus
. In most angiosperm ovules, the ovule curves during development (see Ovule
Type), displacing the micropyle to a location near the funiculus base. In this type
...
6 NACHRICHTEN, IN DENEN DER BEGRIFF «NUCELLUS» VORKOMMT
Erfahre, worüber man in den einheimischen und internationalen Medien spricht und wie der Begriff
nucellus im Kontext der folgenden Nachrichten gebraucht wird.
Boys' basketball preview: Bell-Jeff looks to pick up where it left off
"We have a pretty good nucellus of starting varsity experience that is a real big benefit for us. We have a group that has been playing together ... «Burbank Leader, Nov 14»
NCERT fails to index errors it rectified
The options included Ovule and Nucellus and others. However, according to Class-11 NCERT textbook, both Ovule and Nucellus were correct ... «Hindustan Times, Apr 14»
Teaching wrong biology, NCERT fails to upload Errata
The answers asked students to pick one among Ovule and Nucellus and others. However, both these options are correct as per Class-11 ... «Hindustan Times, Mär 14»
Separation of integument and nucellar tissues from cotton ovules …
RNA and gDNA yields were higher for WO compared with the dissected tissues, the nucellus having the lowest yield in both cases. RNA yield for OI and II was ... «BioTechniques.com, Jan 13»
The Surprising Lives of Cycads
Once there, they send out a long tube into a part of the ovule called the nucellus and send out a haustorial structure that sucks up nutrients from ... «Scientific American, Nov 11»
Hydatellaceae are water lilies with gymnospermous tendencies
169, 79–92 (2008) | Article |; Rudall, P. J. The nucellus and chalaza in monocotyledons: structure and systematics. Bot. Rev. 63, 140–184 (1997) ... «Nature.com, Mär 08»
