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bacterial cells

Listing 1 - 10 from 91 for bacterial cells

EXTOXNET PIP - 2,4-DB
... Mutagenic effects: Chromosome changes occurred due to exposure to 2,4-DB in Chinese hamster cells; however, the exposure was relatively high (just below a threshold of significant cell toxicity) ... 2 hours produced no chromosome changes [33]. The Ames test produced no chromosomal abnormalities in bacterial cells. The data, though minimal, indicate that 2,4-DB is weakly or nonmutagenic. Carcinogenic ...
extoxnet.orst.edu

EXTOXNET PIP - DIFLUBENZURON
... days 6 to 18 of gestation [16,28]. Mutagenic effects: Extensive testing on mamalian cells and on bacterial cells shows that diflubenzuron is not mutagenic [16,28]. Carcinogenic effects: Rats fed diets containing ...
extoxnet.orst.edu
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On-Line Glossary: L
... inoculum. (See incubation period.) 2. Elapsed time between phage infection or induction and lysis of bacterial cells. 3. Period after acquisition of virus by a vector before it becomes infective. (8, 24 ...
ppathw3.cals.cornell.edu

FAQ - Fungi and Mycorrhizae
... cells (cells having distinct membrane-bound organelles such as nuclei, mitochondria). Bacterial cells which lack these organelles are termed prokaryotic. Fungal cells divide by mitosis (asexual reproduction) and by meiosis (sexual reproduction); bacterial cells ...
res2.agr.gc.ca

OREP - Formulation and Delivery of an Actinomycete Biocontrol Agent for Damping-off and Seedling Root Rots in Greenhouse-grown Plug Transplants
... off were suppressed by as much as 80% by treatments with the bacterial biocontrol agent. Freeze-dried, vegetative bacterial cells filtered from bulked liquid cultures of the biocontrol agent on a yeast ... placed beside the seed in the plug cells or mixed with the peat-based potting medium. These evaluations are based on proliferation of the bacterial biocontrol agent in the transplant rhizosphere ...
res2.agr.gc.ca
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Lab Manual Exercise # 1a
... of prokaryotic bacterial cells. In addition, the layers of thylakoid membranes in the grana of chloroplasts are remarkably similar to photosynthetic cells of cyanobacteria. Acquiring cells and genomes ... of prokaryotic bacterial cells. In addition, the layers of thylakoid membranes in the grana of chloroplasts are remarkably similar to photosynthetic cells of cyanobacteria. Acquiring cells and genomes ...
waynesword.palomar.edu

Flower Terminology (Part 1)
... forest trees. Orchid seeds are also grown under aseptic conditions in nutrient agar, similar to bacterial and fungal cultures. The ripened ovary (capsule) of an unknown orchid cut lengthwise (longitudinally) into ... individual seed is only about 0.2 mm in diameter. In fact, there are unusual bacterial cells that are larger than this orchid seed. The resolving power for an unaided human eye ...
waynesword.palomar.edu
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Lwoff's Pathways - Viral Replication
... on the time-honored technique of persistent, careful observations. He observed the growth of single bacterial cells of Bacillus megaterium, a really large bacterium, in tiny droplets of medium. Close observation revealed ... time, in most of the bacterial host cells, the phage was in an inactive form. Later, Lwoff found that it was possible to artificially induce all the cells in a lysogenic culture to ...
web.mit.edu

The Search for the Genetic Material
... in 1868 by Friedrich Miescher, a Swiss biologist, in the nuclei of pus cells obtained from discarded surgical bandages. He called the substance nuclein, noted the presence ... were allowed to infect bacteria. Agitation in a blender dislodged phage particles from bacterial cells. Centrifugation pelleted cells, separating them from the phage particles left in the supernatant. Results Summary: ...
web.mit.edu
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VDIN018 - Bacterial Spot of Pepper and Tomato
... of Infection] [Field Spread] [Control] [Cautions] [Back to Vegetable Disease Notes] [Other Resources] General Information Bacterial leafspot is a severe disease of peppers and tomatoes in North Carolina. It is ... infection to occur. If a protective film of copper fungicide is on plant surfaces, most bacterial cells will be killed before gaining entry into the leaf or fruit -- hence, the importance of ...
www.ces.ncsu.edu




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