Vinogradskii’s Transformation from Plant Physiologist to Ecologist, 1890–1920
Between the 1880s and the 1930s Vinogradskii underwent a striking intellectual transformation. In 1888, he considered himself a plant physiologist concerned with investigating the nutritional requirements of microorganisms. He conducted his research within a theoretical framework he called the cycle of life. By the 1930s, he identified himself as a soil microbiologist; and although he continued to study microbial nutrition, he now investigated it as an ecological phenomenon.