CĂRȚI ÎN ENGLEZĂ ÎN LEGĂTURĂ CU «OOGONIAL»
Descoperă întrebuințarea
oogonial în următoarea selecție bibliografică. Cărți în legătură cu
oogonial și extrase din aceasta pentru a furniza contextul de întrebuințare al acestuia în literatura Engleză.
1
Systematics and Evolution
O. The Oogonium The oogonial initial develops as a swelling without septation or
by a transformation of a gametangial segment. The first trigger for this
morphogenetic change must be endogenous, from either a nutritional or
biochemical ...
David J. McLaughlin, Karl Esser, Paul A. Lemke, 2001
2
Fish Histology: Female Reproductive Systems
In lampreys, possibly all elasmobranchs, and some bony fishes, oogonial
proliferation is limited to the larval or embryonic period (Tokarz, 1978).
Successive generations of oocytes appear to develop from oogonia in the
germinal ridge of adult ...
3
Cryptogams: Algae, Bryophyta and Pterldophyta
The smaller lower one is called the stalk cell and the upper longer one is called
the oogonial cell (Fig. 12.9 B). The stalk cell does not divide further. The oogonial
cell gradually increases in size and becomes almost spherical. It contains dense
...
The oogonial initials now secrete Hormone C, which directs the growth of the
antheridial hyphae to the oogonial initials and also causes the formation and
delimitation of the antheridia after the antheridial hyphae make contact with
oogonial ...
5
Fungi and Allied Organisms
The oogonial initials now secrete Hormone C, which directs the growth of the
antheridial hyphae to the oogonial initials and also causes the formation and
delimitation of the antheridia after the antheridial hyphae make contact with
oogonial ...
However, intermediate strains have been discovered that produced either
antheridia or oo- gonia depending on the propensities of the opposed strain; that
is, they are antheridial in the presence of a strongly oogonial strain and oo-
gonial in ...
Effects of Pheromones. Oogonial mother spores secrete a sirenin; the
androspores are attracted by it and collect and adhere to these cells. If a capillary
is filled with the aqueous medium in which threads with oogonial mother cells
have been ...
Hans Mohr, Peter Schopfer, 1995
In A. colorata the oogonial wall bears blunt rounded projections (Fig. 7.9 D-E).
Each oogonium remains filled with dense homogeneous contents. The young
oogonial initial is multinucleatc and its nuclei keep on dividing for some time (Fig.
9
Text Book Of Botany Diversity Of Microbes And Cryptogams
It is attracted chemotactically towards the oogonial mother cell and gets attached
to it or any other adjacent cell by its anterior end. Then it germinates to form a
dwarf male. The dwarf male has a basal holdfast and one or more antheridia (Fig.
Following this sexual activation of the of plant, large lateral branches appear on
the 9 , and each of these rapidly enlarges to form a globose structure densely
packed with protoplasm, the oogonial initial or 9 sexual organ primordium. Once
the ...
ȘTIRI NOI CARE INCLUD TERMENUL «OOGONIAL»
Află ce ziare naționale și internaționale au scris despre și cum este întrebuințat termenul
oogonial în contextul următoarelor știri.
A new era for human fertility research
Female fish, flies, and virtually all other non-mammalian animals have oogonial stem cells, a special kind of stem cell that creates new eggs. «News@Northeastern, Sep 13»
Endo This Week: First Glitazar OK'd in India
Transferring mitochondria from oogonial stem cells into mature female egg cells may improve fertility, researchers reported in a review of the ... «MedPage Today, Iun 13»
Reproductive biology: Fertile mind
And in February, he reported the isolation of what he called “oogonial stem cells” from human ovaries. By injecting the cells into human ovarian ... «Nature.com, Nov 12»
Rethinking Reproductive Biology
These researchers not only identified these oogonial stem cells (or OSCs), but also managed to collect a few and to coax them into becoming ... «KQED QUEST, Aug 12»
Oocytes: Maybe That Biological Clock No Longer Ticks
Postnatal oogenesis through ongoing oogonial stem cell (OSC) mitosis explains increasing oocyte depth with age. (a) Following primordial ... «Science 2.0, Iul 12»
Eggs unlimited: an extraordinary tale of scientific discovery
The core of this new thinking lies in the remarkable discovery of “oogonial stem cells” within the ovary that are capable of producing a constant ... «The Independent, Apr 12»
Egg-making stem cells found in adult ovaries
The cells they pulled out, called oogonial stem cells (OSCs), spontaneously generated apparently normal immature oocytes when cultured in ... «Nature.com, Feb 12»
Mice Can Avoid Menopause, But Can Women?
When human oogonial stem cells are transplanted into mice, the stem cell divides and creates itself over again. One of the 2 daughter cells ... «Medscape, Sep 11»
