Zobrazeno 1 - 10
of 15
pro vyhledávání: '"S. A. Nierzwicki-Bauer"'
Autor:
M. W. Swinton, P. K. Myer, M. F. Schaller, E. A. Pettitt, J. L. Farrell, S. A. Nierzwicki-Bauer
Publikováno v:
Ecotoxicology. 31:808-821
Autor:
Howard A. Simonin, Charles W. Boylen, S. W. Nierzwicki-Bauer, Gregory B. Lawrence, James W. Sutherland, Barry P. Baldigo, Bahram Momen
Publikováno v:
Environmental Science & Technology. 41:93-98
Assessments of acidic deposition effects on aquatic ecosystems have often been hindered by complications from naturally occurring organic acidity. Measurements of pH and ANCG, the most commonly used indicators of chemical effects, can be substantiall
Publikováno v:
Canadian Journal of Botany. 69:2489-2496
The ontological changes in cyanobacterial ultrastructure, including akinete germination and heterocyst differentiation, during the propagation of mature sporophytes from Azolla microphylla sporocarps were examined using transmission electron microsco
Publikováno v:
BioTechniques. 13(6)
A rapid method for the identification of bacterial cells using 16S rRNA-directed, fluorescently tagged oligonucleotide probes has been developed. The parameters evaluated for their effect on labeling intensity included storage time, type of fixative,
Publikováno v:
BioTechniques. 9(4)
The effectiveness of UV cross-linking and in vacuo baking for the immobilization and retention of DNA to various solid supports was investigated. Optimal immobilization treatments for supported and unsupported nitrocellulose and nylon membranes were:
Publikováno v:
Journal of Bacteriology. 161:1215-1218
The effects of nitrogen starvation on the morphology and ultrastructure of the branching, filamentous cyanobacterium Mastigocladus laminosus were examined with light and electron microscopy. The internal ultrastructural characteristics of vegetative
Publikováno v:
Journal of Bacteriology. 157:514-525
The morphological and ultrastructural aspects of heterocyst differentiation in the branching, filamentous cyanobacterium Mastigocladus laminosus were examined with light and electron microscopy. The earliest differentiation stages involved cytoplasmi
Publikováno v:
The Journal of Cell Biology
The first complete three-dimensional ultrastructural reconstruction of a cyanobacterium was accomplished with high-voltage electron microscopy and computer-aided assembly of serial sections. The precise arrangement of subcellular features within the
Publikováno v:
Canadian Journal of Botany. 67:2711-2719
Ultrastructural characteristics of Azolla leaf cavities were examined using transmission electron microscopy. An extracellular inner envelope, which forms a boundary between the central cavity region and the peripheral region containing cyanobacteria
Publikováno v:
Journal of Microscopy. 133:55-60
SUMMARY High-voltage electron microscopy (HVEM) of semi-thick sections was evaluated as a technique for studying thylakoid membrane arrangements in cyanobacterial cells. Semi-thick sections (0·25 μm) provided important information that was relative