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101.
Denisa Blažková 《Folia Geobotanica》1971,6(1):43-80
Caricetum gracilis Almquist 1929 ist eine Assoziation mit ausgedehnter eurosibirischer Verbreitung, es bewahrt sich jedoch in seinem ganzen Areal eine mehr oder weniger konstante zönotische Zusammensetzung, die durch das Grundmerkmal—die Anwesenheit vonCarex gracilis als Dominante (Kondominante) und Ädifikator, bedingt ist. Als ausschlaggebonder Faktor für die Entstehung der Gesellschaft kommt der Wasserhaushalt mit charakteristischer Abwechslung der Überschwemmungen und Austrocknungen zur Geltung. Die geographischen, klimatischen und bodenökologischen Unterschiede der Standorte ermöglichen eine weitere Gliederung der Assoziation inCaricetum gracilis Subass.typicum mit grösstem Verbreitungsgebiet, die in drei Varianten zerfällt, weiter inCaricetum gracilis comaretosum, dessen Areal an nördliche Teile Mittel- und Osteuropas gebunden ist und das in zwei Varianten zerfällt, und schliesslich inCaricetum gracilis naumburgietosum, das vor allem an das Herzynische Gebiet und den Nordrand der Karpaten gebundon ist. 相似文献
102.
Denisa Blažková 《Folia Geobotanica》1973,8(3):225-230
Vesicular cavities in the lava fields of Northern Iceland communicate by small openings with the ground surface. Aeolian sediments, called the Icelandic Ioess, deposit over the bottom of these cavities, together with the reduced light intensity and equable microclimate, create specific biotopes occupied by sciophilous bryophytes andCystopteris fragilis. A new association within the allianceCtenidion Stefureac 1941—Cystopteri-Distichietum capillacei Bla?ková ass. nova— is described in the present paper. 相似文献
103.
Oldřich Lhotský Denisa Blažková Pavel Cudlín Josef Holub Emil Hadač 《Folia Geobotanica》1979,14(3):326-336
104.
Carboxylated latex beads coated with fibronectin bind to the surfaces of NIL8 hamster cells. Similar beads coated with bovine serum albumin, gelatin or normal rabbit immunoglobulin do not bind to the cells, whereas beads coated with polylysine or rabbit anti-hamster immunoglobulin bind, as do fibronectin-coated beads. Surface-bound beads are endocytosed by the cells. This endocytosis is inhibited by N-ethyl maleimide or low temperatures. The endocytosed beads form arrays aligned with the microfilament bundles inside the cells and after extended incubations (18–24 h) become concentrated in the perinuclear region. These results suggest that, after phagocytosis of large particles, the endocytic vesicles align with microfilament bundles, as previously reported for coated pits involved in receptor-mediated endocytosis. The system described here offers possibilities for the analysis of membrane and transmembrane interactions involved in cell-substratum binding and phagocytosis. 相似文献
105.
Alvaro AR Rosmaninho-Salgado J Santiago AR Martins J Aveleira C Santos PF Pereira T Gouveia D Carvalho AL Grouzmann E Ambrósio AF Cavadas C 《Neurochemistry international》2007,50(5):757-763
NPY is present in the retina of different species but its role is not elucidated yet. In this work, using different rat retina in vitro models (whole retina, retinal cells in culture, microglial cell cultures, rat Müller cell line and retina endothelial cell line), we demonstrated that NPY staining is present in the retina in different cell types: neurons, macroglial, microglial and endothelial cells. Retinal cells in culture express NPY Y(1), Y(2), Y(4) and Y(5) receptors. Retina endothelial cells express all NPY receptors except NPY Y(5) receptor. Moreover, NPY is released from retinal cells in culture upon depolarization. In this study we showed for the first time that NPY is present in rat retina microglial cells and also in rat Müller cells. These in vitro models may open new perspectives to study the physiology and the potential pathophysiological role of NPY in the retina. 相似文献
106.
107.
Sequencing of 15 622 gene‐bearing BACs clarifies the gene‐dense regions of the barley genome
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MingCheng Luo Kavitha Madishetty Jan T. Svensson Matthew J. Moscou Steve Wanamaker Tao Jiang Andris Kleinhofs Gary J. Muehlbauer Roger P. Wise Nils Stein Yaqin Ma Edmundo Rodriguez Dave Kudrna Prasanna R. Bhat Shiaoman Chao Pascal Condamine Shane Heinen Josh Resnik Rod Wing Heather N. Witt Matthew Alpert Marco Beccuti Serdar Bozdag Francesca Cordero Hamid Mirebrahim Rachid Ounit Yonghui Wu Frank You Jie Zheng Hana Simková Jaroslav Dolezel Jane Grimwood Jeremy Schmutz Denisa Duma Lothar Altschmied Tom Blake Phil Bregitzer Laurel Cooper Muharrem Dilbirligi Anders Falk Leila Feiz Andreas Graner Perry Gustafson Patrick M. Hayes Peggy Lemaux Jafar Mammadov Timothy J. Close 《The Plant journal : for cell and molecular biology》2015,84(1):216-227
Barley (Hordeum vulgare L.) possesses a large and highly repetitive genome of 5.1 Gb that has hindered the development of a complete sequence. In 2012, the International Barley Sequencing Consortium released a resource integrating whole‐genome shotgun sequences with a physical and genetic framework. However, because only 6278 bacterial artificial chromosome (BACs) in the physical map were sequenced, fine structure was limited. To gain access to the gene‐containing portion of the barley genome at high resolution, we identified and sequenced 15 622 BACs representing the minimal tiling path of 72 052 physical‐mapped gene‐bearing BACs. This generated ~1.7 Gb of genomic sequence containing an estimated 2/3 of all Morex barley genes. Exploration of these sequenced BACs revealed that although distal ends of chromosomes contain most of the gene‐enriched BACs and are characterized by high recombination rates, there are also gene‐dense regions with suppressed recombination. We made use of published map‐anchored sequence data from Aegilops tauschii to develop a synteny viewer between barley and the ancestor of the wheat D‐genome. Except for some notable inversions, there is a high level of collinearity between the two species. The software HarvEST:Barley provides facile access to BAC sequences and their annotations, along with the barley–Ae. tauschii synteny viewer. These BAC sequences constitute a resource to improve the efficiency of marker development, map‐based cloning, and comparative genomics in barley and related crops. Additional knowledge about regions of the barley genome that are gene‐dense but low recombination is particularly relevant. 相似文献
108.
Lucia Slovinska Denisa Harvanova Jana Janockova Jana Matejova Peter Cibur Marko Moravek Timea Spakova Jan Rosocha 《Current issues in molecular biology》2022,44(2):578
At present, there is no effective way to treat the consequences of spinal cord injury (SCI). SCI leads to the death of neural and glial cells and widespread neuroinflammation with persisting for several weeks after the injury. Mesenchymal stem cells (MSCs) therapy is one of the most promising approaches in the treatment of this injury. The aim of this study was to characterize the expression profile of multiple cytokines, chemokines, growth factors, and so-called neuromarkers in the serum of an SCI patient treated with autologous bone marrow-derived MSCs (BM-MSCs). SCI resulted in a significant increase in the levels of neuromarkers and proteins involved in the inflammatory process. BM-MSCs administration resulted in significant changes in the levels of neuromarkers (S100, GFAP, and pNF-H) as well as changes in the expression of proteins and growth factors involved in the inflammatory response following SCI in the serum of a patient with traumatic SCI. Our preliminary results encouraged that BM-MSCs with their neuroprotective and immunomodulatory effects could affect the repair process after injury. 相似文献
109.