Figure 5: Significantly more Streptomyces spp. capable of producing a neurodegenerative compound were isolated from agricultural and undeveloped soils than from urban soils.
From: The Prevalence and Distribution of Neurodegenerative Compound-Producing Soil Streptomyces spp.
n = 60 for each land use. Columns with the same letters are not significantly different from one another (Fisher’s exact test, p < 0.01).
