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Farmers grow sweetpotatoes worldwide and some sub-Saharan African and Asian diets include sweetpotato as a staple, yet the sweetpotato microbiome is conspicuously less studied relative to crops such as maize, soybean, and wheat. Studying sweetpotato microbiome ecology may reveal paths to engineer the microbiome to improve sweetpotato yield, and/or combat sweetpotato pests and diseases. We sampled sweetpotatoes and surrounding soil from two North Carolina farms. We took samples from sweetpotato fields under two different land management regimes, conventional and organic, and collected two sweetpotato cultivars, ‘Beauregard’ and ‘Covington’. By comparing small subunit rRNA gene amplicon sequence profiles from sweetpotato storage root skin, rhizosphere, and surrounding soil, we found the skin microbiome possessed the least composition heterogeneity among samples, lowest alpha-diversity, and was significantly nested by the rhizosphere in amplicon sequence variant (ASV) membership. Many ASVs were specific to a single field and/or only found in either the skin, rhizosphere, or surrounding soil. Notably, sweetpotato skin enriched for Planctomycetaceae in relative abundance at both farms. This study elucidates underpinnings of sweetpotato microbiome community assembly, quantifies microbiome composition variance within a single farm, and reveals microorganisms associated with sweetpotato skin that belong to common but uncultured soil phylotypes. [Formula: see text] Copyright © 2020 The Author(s). This is an open access article distributed under the CC BY 4.0 International license .

A,N author may rightly be asked to define his subject clearly, and he should also be required to define himself a little bit, so that all have a better chance to criticize his interpretations. Therefore, I will expose what faiths or prejudices of mine have a bearing on my subject. I have a basic faith in the essential soundheadedness of the United States. I do not believe that what we are living through is a crisis of the system, of the mode of life that has made the United States the great nation that it is. I think it is a crisis within the system. This means that I believe that, when policies clearly threaten the system, the policies will be forced to change. Therefore, all my conclusions are colored by a basic faith that the nation's difficulties will finally be worked out only along the pattern of life which has made the United States what it is. Having defined my own prejudices, the subject of inflation, I find, hardly permits of a coverall definition. Moreover, in order to bring my discussion in line with the actualities of the present situation, I must not confine myself to inflation in a restricted sense, because we are faced not only with that inflation which is classically the method by which governments meet an insolvency of their treasury. We are faced with it also as part of a "planned recovery." It is therefore necessary to consider the widely conflicting schools of money management and economic planning as a part of my subject.