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. 2021 Aug 21;16(2):331–338. doi: 10.1038/s41396-021-01088-5

Fig. 1. Barriers to organism establishment and a path forward for microbiome engineering.

Fig. 1

A The current state of research focused on inoculum establishment. Without quantitative prioritization, potential barriers like the illustrated examples are investigated randomly. B Path forward to improve establishment success. Prioritization of barriers includes quantifying their relative impact in order to create decision trees that can simultaneously rank barriers and summarize the potential impact of overcoming each barrier in a multi-factor solution path. Values in parentheses on the decision tree illustrate an example of percentage impact of a barrier on inoculum establishment, guiding microbiome engineering investments.