Pediastrum duplex Meven var. loktakense Bruhl et Biswas; P incavatum Turner. Special Features: 1. Free-floating disc-shaped coenobium composed of single layer of cells of which the outer ones having radiating processes. 2. Parietal chloroplast. 3. Asexual reproduction by biflagellate zoospores. 4. Sexual reproduction isogamous. 5. The zygote.
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Freshwater phytoplankton communities can be classified into a variety of functional groups that are based on physiological, morphological, and ecological characteristics. This classification method was used to study the temporal and spatial changes in the phytoplankton communities of Gaozhou Reservoir, which is a large municipal water source in South China. Between January 2015 and December.
The main outlines of bacterial classification. J Bacteriol 1941; 42:437-463. 3. Doolittle WF, Brown JR. Tempo, mode, the progenote, and the universal root. Proc Natl Acad Sci USA 1994; 91:6721-6728. 4. Stanier RY, van Niel CB. The concept of a bacterium. Arch Microbiol 1962; 42:17-35. 5. Stanier RY. Some aspects of the biology of cells and their possible evolutionary significance. Symp Soc Gen.
The tetrazolium method was originally described by Lakon (1942) for cereals but the paper was unobtainable and a re-description of the method in English (Lakon, 1949) was seen only after most of the work described had been completed and use had therefore to be made of other methods of embryo classification. A 1% aqueous solution of 2.3.5. triphenyl tetrazolium chloride was used.