By Leland N. Edmunds Jr. (auth.), Professor Dr. Wolfgang Wiessner, Professor David G. Robinson Ph.D., Professor Richard C. Starr Ph.D. (eds.)
From the contents: interplay of circadian oscillators and the mobilephone developmental cycle in Euglena.- keep watch over issues within the Chlamydomonas mobile Cycle.- percentages for time size in synchronous Chlorella - circadian rhythm and timing.- Diatom mitosis: Implications of a version System.- Wall morphogenesis in centric diatoms.- mobile elongation within the crimson alga Griffithsia: keep an eye on via mild, ions, and an endogenous glycoprotein hormone.- Molecular indications in the course of sexual induction of Volvox carteri f. nagariensis.- Pheromone-inducible glycoproteins of the extracelluar matrix of Volvox and their attainable function in sexual induction.- Environmental and Pheromonal regulate of Sexual replica inLaminaria.- motion of phone wall autolysins in asexual replica of filamentous eco-friendly algae: proof and species specificity.- Molecular popularity homes of Chlamydomonas HRGPs.- Maturation of a Flagellum/Basal physique calls for a couple of cellphone Cycle in Algal Flagellates: experiences on Nephroselmis olivacea.- Protein synthesis in chloroplasts.- comparability of envelope membranes from greater vegetation and algae plastids and of outer membranes from Cyanobacteria.- legislation of chloroplast differentiation: Cooperation among Light-Induced procedures and inner Adaptation.- interplay of nuclear and chloroplast mutations in biogenesis of chloroplast ribosomes in Chlamydomonas.- facts for a number of services of the Intrinsic, 32-34 kDa Chloroplast Membrane Polypeptide of Scenedesmus in Photosystem II Reactions.- "Life cycle" of the 32 kDa-protein of Chlamydomonas chloroplasts.- assorted different types of LHC within the eco-friendly Alga chlamydobotrys stellata.- Taxonomic Index.- topic Index. Die verschiedenen Entwicklungstypen und Rhythmen von Algen werden anhand von verschiedenen Beispielen erlautert, wobei die physiologischen Grundlagen im Vordergrund stehen.
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Extra resources for Algal Development: Molecular and Cellular Aspects
We have proposed that conventional kinetochores also slide along polar MTs as in diatoms, before attaching to them; this view is not held by many other workers in the field. THE SPINDLE MATRIX. Several large diatoms reveal in the electronmicroscope the presence of a matrix, spindle, and which the collar, runs between which permeates the outer MTs of each half the kinetochores and the pole (22). That the kinetochores are attached to this matrix is shown in experiments using colchicine which breaks down the MTs radiating from the poles, while leaving the more stable central spindle intact In (23) • this event, prometaphase oscillations cease, while at metaphase, random breakage of either of the two bipolar attachments of each chromosome allows that chromosome to contract elastically to the other pole.
Concentration of dictysomes or vesicles at the rhizoid apex; in addition, chloroplasts are no longer excluded from the apex and are found in the apical zone as well as along the sides of the cell. The dictysomes, still with associated mitochondria, have flattened cisternae and appear to be inactive. If a dark-treated plant is returned to the light, the rhizoid tip reorganizes. The refractile zone and chloroplast band are reestablished and growth restarts. Thus apices of growing rhizoids and repair shoot cells have a characteristic cytoplasmic organization typified by localized accumulat~on of specific organelles and a localized zone of vesicle fusion with the tip.
Time of autospore release Fig. 12 Committment of the induction for daughter cell release, yield fixation and the time of daughtercell release dependent upon different light dark changes. ): time of daughtercell release. For further explanation refer to the text. Remarks to lane 2 of fig. 12 Some cells were already induced for daughter cell release at the beginning of the dark pulse; their yield of daughter cell production was also fixed. These cells liberate their daughter cells in time with the control with low yield.