Protoplasma
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Microfilament bundles associated with tubular endoplasmic Reticulum in fusiform cells in the active cambial zone ofFraxinus excelsior L.
Protoplasma - Tập 116 - Trang 204-208 - 1983
In the active cambium ofFraxinus excelsior L. microfilament bundles and tubular endoplasmic reticulum appear always associated with each other in the parietal cytoplasm of fusiform cells. The two associated organelles are parallel to the longitudinal cell axis. The association is absent in small, isodiametric ray cells. It is suggested that the associations are specialized structures related to th...... hiện toàn bộ
Identification of K+, Cl?, and Ca2+ channels in the vacuolar membrane of tobacco cell suspension cultures
Protoplasma - - 1992
Fine structure of the spermatozoid of two mosses, with special reference to the so-called „Nebenkern“
Protoplasma - Tập 58 - Trang 663-666 - 1964
Fine structure of resting and germinatingPenicillium chrysogenum conidiospores
Protoplasma - Tập 73 - Trang 443-456 - 1971
The fine structure of resting and germinating conidia ofPenicillium chrysogenum has been examined by electron microscopy. In addition to enlargement of the cells, a number of changes in ultrastructure become evident as morphogenesis proceeds. The newly synthesized germ tube is continuous with the corresponding layers of the conidial wall. Some conidial wall layers, however, do not extend into the ...... hiện toàn bộ
Structural stability studies in adhesion molecules—role of cation–π interactions
Protoplasma - Tập 248 - Trang 673-682 - 2010
Cell adhesion molecules are important for their various roles in many cellular events and responses. In the present study, we have analyzed the roles played by cation–π interactions in the structural stability of adhesion molecules. These interactions are mainly formed by long-range contacts. The occurrence of arginine is higher than lysine to form cation–π interactions. The secondary structure pr...... hiện toàn bộ
Melatonin activates the vascular elements, telocytes, and neuroimmune communication in the adrenal gland of Soay rams during the non-breeding season
Protoplasma - Tập 257 - Trang 353-369 - 2019
The adrenal glands of 15 adult Soay rams were used to study the effect of melatonin on their vascular elements and cellular organization. A significant increase in the cross-sectional area of the blood sinusoids was demonstrated after melatonin administration. The vimentin-expressing mesenchymal cells were increased in the melatonin-treated group. Intensive S-100 protein expression was observed in...... hiện toàn bộ
The liesegang phenomenon as a source of colloidal matter
Protoplasma - Tập 30 - Trang 258-264 - 2005
The study of the interaction of calcium chloride with sodium carbonate reveals the following facts:
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