. The culturing of algae; a symposium. Algae; Algae. SOME PROBLEMS IN THE CULTIVATION OF ALGAE H. C. BOLD Vanderbilt Unwersity, Nashville, Tenn. I have deliberately employed a rather nebulous title for this paper because it is my purpose to discuss several aspects of the cul- tivation of algae which are themselves in need of clarification. It is now almost sixty years since Beijerinck (1890), following the pioneer methods of bacteriologists, mixed his Chlorella-coT^ taining ditch water with melted gelatine, and obtained pure cultures of the organism by plating. Although great advances have bee


. The culturing of algae; a symposium. Algae; Algae. SOME PROBLEMS IN THE CULTIVATION OF ALGAE H. C. BOLD Vanderbilt Unwersity, Nashville, Tenn. I have deliberately employed a rather nebulous title for this paper because it is my purpose to discuss several aspects of the cul- tivation of algae which are themselves in need of clarification. It is now almost sixty years since Beijerinck (1890), following the pioneer methods of bacteriologists, mixed his Chlorella-coT^ taining ditch water with melted gelatine, and obtained pure cultures of the organism by plating. Although great advances have been made since in the technique of cultivation, and impor- tant results have been obtained from the study of algae in pure culture, the field is still an open one in need of further devebp- ment in a number of aspects, but especially in respect to applica- tion of methods. In the first place, it seems to the author that from one point of view we are again in the position of Beijerinck who adopted the techniques of bacteriologists available in his time, but we are not taking advantage of those techniques in applying them fruit- fully to some of the problems that confront the modern phycol- ogist. I have reference here, for example, to the classification of many unicellular and colonial algae, especially Chlorophytan forms, the taxonomy of which is nothing short of chaotic. Just as the early bacteriologists naively collected and described bacterial species from various habitats, before it had become clear that the real criteria of taxonomic delimitation must be obtained from prolonged morphological and physiological studies, so even in this day, many phycologists blithely, and perhaps with equal naivete, collect unicellular algae and name them, often from pre- served material in which most of the morphological criteria are no longer recognizable. 11. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - colorati


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Keywords: ., bo, bookcentury1900, bookcollectionbiodiversity, booksubjectalgae