10 LIBRI IN POLACCO ASSOCIATI CON «GONIDIUM»
Scopri l'uso di
gonidium nella seguente selezione bibliografica. Libri associati con
gonidium e piccoli estratti per contestualizzare il loro uso nella letteratura.
1
The Developmental Biology of Reproduction - Strona 66
<69. Fig. 11. Diagram of the structure of V. carteri asexual spheroids. The “normal” spheroid has 8 gonidia in two tiers of 4. The other spheroids illustrate the results of UV-irradiation during the precleavage period (1T1 = 1 gonidium missing in ...
2
Changing Syntheses in Development - Strona 66
The gonidia in V. carteri f. nagariensis are located near the periphery of the spheroid just beneath the single layer Of small somatic cells. Every somatic cell and every gonidium is surrounded by a thick envelope of undetermined composition.
3
Germline Development - Strona 17
No'thr'ger: You stated that the decision for cells to become gonidia or somatic cells is dependent entirely on cell size. Is there a point of no return in this determination process beyond which the fate of cells cannot be changed? If you performed ...
CIBA Foundation Symposium, 2008
4
Volvox: A Search for the Molecular and Genetic Origins of ... - Strona 128
5.4.1 Cleavage: creating two cell lineages from one Throughout most of its growth and maturation, a V. carteri gonidium is spherical, has a central nucleus, is highly vacuolated (Figure5.2A), and is intimately connected to the glycoprotein ...
5
Sexual Interactions In eukaryotic Microbes - Strona 79
In one of these, characterized by V. carteri, the pheromone acts on a gonidium and in some fashion alters its cleavage pattern so that sexual rather than asexual reproductive cells are differentiated, and the resultant juvenile spheroid is male or ...
6
Textbook of Algae - Strona 151
They are called gonidia (Fig. 9.27 and 9.28A) or autocolony initials. With the help of successive longitudinal divisions each gonidium develops into a daughter colony. Zim merman n (1925), Pocock (1933), Starr (1969) and Karn et al. (1974) ...
7
Progress in Botany: Structural Botany Physiology Genetics ...
The pattern of gonidia in the sphaeroid of V. carteri has been interpreted on the basis of cell bridges in the developing embryo and a dichotomic flow of signals (Sumper 1979, 1984). However, such plasmodesmata do not exist, and the facts ...
8
Minnesota Algae - Tom 1 - Strona 162
3.5-4 mic. in diameter; gonidia 6-7 mic. in diameter, 7-8 mic. in length N. linckia 2 Filaments flexuous, loosely entangled (1) Gonidia 6-7 mic. in diameter, spherical; wall of gonidium smooth; trichomes 4 mic. in diameter N. piscinale (2) Gonidia ...
Josephine Elizabeth Tilden, 1910
9
SUCCESSIVE BOTANY: FOR B. Sc Part 1 - Based on Kashmir ...
The gonidia do not have flagella and eye spots. Usually two gonidia are separated by several vegetative cells. A gonidium is embedded in a hollow gelatinous cavity of the colony along with its globular gelatinous sac. The protoplast of the ...
10
A Text-Book of Botany: Morphological and Physiological - Strona 266
The mode of growth, branching, and external structure of the Lichen-thallus may either be determined by the gonidia, the hyphae being concerned only in a secondary degree in the construction of the substance, or it may happen that the ...
Julius Sachs, Alfred W. Bennett, W. T. Thiselton Dyer, 2011
