Download Algal Development: Molecular and Cellular Aspects by Leland N. Edmunds Jr. (auth.), Professor Dr. Wolfgang PDF

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 cellphone developmental cycle in Euglena.- keep watch over issues within the Chlamydomonas mobile Cycle.- chances for time size in synchronous Chlorella - circadian rhythm and timing.- Diatom mitosis: Implications of a version System.- Wall morphogenesis in centric diatoms.- mobilephone elongation within the pink alga Griffithsia: keep watch over through gentle, ions, and an endogenous glycoprotein hormone.- Molecular signs in the course of sexual induction of Volvox carteri f. nagariensis.- Pheromone-inducible glycoproteins of the extracelluar matrix of Volvox and their attainable position in sexual induction.- Environmental and Pheromonal keep an eye on of Sexual replica inLaminaria.- motion of mobile wall autolysins in asexual replica of filamentous eco-friendly algae: proof and species specificity.- Molecular acceptance homes of Chlamydomonas HRGPs.- Maturation of a Flagellum/Basal physique calls for multiple telephone Cycle in Algal Flagellates: experiences on Nephroselmis olivacea.- Protein synthesis in chloroplasts.- comparability of envelope membranes from larger crops and algae plastids and of outer membranes from Cyanobacteria.- rules of chloroplast differentiation: Cooperation among Light-Induced approaches and inner Adaptation.- interplay of nuclear and chloroplast mutations in biogenesis of chloroplast ribosomes in Chlamydomonas.- facts for a number of features 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.- diversified sorts 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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The mechanism of action of nigericin may be similar. In many systems, nigericin catalyzes a K+/H+ exchange. However, in Griffithsia effects of nigericin on elongation and cellular morphology appear to be identical to those of monensin. Thus it is likely that both ionophores induce similar changes in ion balance in these cells. In red blood cells both ionophores have been shown to cause a simultaneous influx of Na+ and efflux of K+ (Pressman and Fahim, 1982). It seems unlikely that monensin and nigericin effects in Griffithsia are due to changes in internal K+ levels since their effects on elongation and cytoplasmic organization appear to be very different from those caused by lowered [K+] or by valinomycin, While both monensin and nigericin might cause similar changes in the ionic and pH relations of dictyosome cisternae, their effects might also be due to the fact that they both cause an increase in cytoplasmic [Na+].

44 Transcellular Currents: In many cells which elongate by tip growth, a role for transcellular ion currents in the establishment and maintenance of pol arized growth has been postul ated. Regions of localized inflowing current are found at the tips of many of these cells; in some cases localized inflowing currents preceed the initiation of localized growth (Nuccitelli, 1983; 1986). The role of endogeneous transcellular ion currents in regulating elongation and maintaining localized growth and organelle localization in Griffithsia has been studied (Waaland and Lucas, 1984).

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