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A promising, sustainable way to enhance plant health and productivity is by leveraging beneficial microbes. Beneficial microbes are natural soil residents with proven benefits for plant performance and health. When applied in agriculture to improve crop yield and performance, these microbes are commonly referred to as bioinoculants. Yet, despite their promising properties, bioinoculant efficacy can vary dramatically in the field, hampering their applicability. Invasion of the rhizosphere microbiome is a critical determinant for bioinoculant success. Invasion is a complex phenomenon that is shaped by interactions with the local, resident microbiome and the host plant. Here, we explore all of these dimensions by cross-cutting ecological theory and molecular biology of microbial invasion in the rhizosphere. We refer to the famous Chinese philosopher and strategist Sun Tzu, who believed that solutions for problems require deep understanding of the problems themselves, to review the major biotic factors determining bioinoculant effectiveness.
Poppeliers et al. (Sat,) studied this question.