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Digestive activities of carnivorous plants
MATERIALS AND METHODS
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acid activity added additional agar ammonia amounts appeared associated August bacteria Balsam Lake broth casein cells characteristics characterizations chitin collected colonies color considered containing cultures detected determined digestion dilution disc early enrichments Enumerations enzymes extract field flies flower gelatin glands glucose gram-negative growth Hepburn Hope Lake hydrolysis identifications increase incubation indicated inoculated insects isolates Jones July 16 June 30 laboratory larvae leaf leaves materials medium method microbial moss nitrogen nitrogen-fixing noted numbers nutrient observed obtained October organic pH readings photo synthetic Photograph pitcher fluid samples pitcher plants placed plate plate counts possible present probably production protease proteolytic Pseudomonas purpurea range reaction readings relatively rods samples collected Sarracenia seen Selected Serratia showed solates species sterile strains summarized surface Table temperature tested tubes Type zone