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Now showing items 11-20 of 27
Studies in the Danthonieae (Poaceae) /
(1984)
Finally, treatments of the genera and species of Arundo, Phragmites, and Danthonia in the southeastern United States are presented.
Systematic studies in Physalis (Solanaceae) /
(1984)
(4) Physalis (for the Vascular Flora of the Southeastern United States). Measurements were made from over 6,500 herbarium sheets and personal collections, and updated keys and descriptions were written for the 20 species ...
Pollen characters in relation to the delimitation of Myrtales.
(1982)
Pollen representative of the Lythraceae, Punicaceae, Sonneratiaceae, Trapaceae, Oliniaceae, Combretaceae, Alzateaceae, Penaeaceae, Crypteroniaceae, Melastomataceae, Myrtaceae and Onagraceae was examined with SEM and TEM. ...
Differences in nitrate reductase activity between species of different stages in old field succession.
(1982)
The ratio of nitrate/ammonium in the soil decreases from a high level in the early stages of old field succession to a low level in the climax in the tall grass prairie region of central Oklahoma. Characteristic species ...
The effects of diet and carcinogen on the natural killer cell activity of sprague dawley rats.
(1981)
This study was conducted to determine if dietary fat and/or administration of 7,12 dimethylbenz((alpha))anthracene (DMBA) to Sprague Dawley rats affected the natural killer cell activity of these animals.
Studies in the dinoflagellate genera, Peridinium and Peridiniopsis.
(1981)
Photoheterotrophy occurs in Peridinium willei, P. limbatum, P. inconspicuum, and Peridiniopsis polonicum. All species tested exhibited photoheterotrophy except P. volzii. Growth of all species was strongly depressed by ...
Allelopathic potential of wheat accessions /
(1984)
Root exudates of 286 accessions of hard red winter wheat (Triticum aestivum L.) were compared with that of a commercial strain 'T 64' for their relative ability to inhibit root and shoot growth of Japanese brome (Bromus ...
Blastomyces dermatitidis :
(1981)
A hybridoma cell line was isolated which produced monoclonal antibody to one protein component of a yeast-phase cytoplasmic antigen of B.dermatitidis. The IgM antibody product was characterized by immunodiffusion, ...
An investigation of the interaction of aminoacy-transfer RNA with elongation factor Tu using site-specific fluorescent probes.
(1982)
This research shows that association with EF-Tu(.)GTP induces a conformational change in the aa-tRNA. This may be the primary means by which EF-Tu promotes protein biosynthesis. Topological data from this research, when ...