Potato Microbiome: Relationship with Environmental Factors and Approaches for Microbiome Modulation

Abstract

Every land plant exists in a close relationship with microbial communities of several niches: rhizosphere, endosphere, phyllosphere, etc. The growth and yield of potato—a critical food crop worldwide—highly depend on the diversity and structure of the bacterial and fungal communities with which the potato plant coexists. The potato plant has a specific part, tubers, and the soil near the tubers as a sub-compartment is usually called the “geocaulosphere”, which is associated with the storage process and tare soil microbiome. Specific microbes can help the plant to adapt to particular environmental conditions and resist pathogens. There are a number of approaches to modulate the microbiome that provide organisms with desired features during inoculation. The mechanisms of plant–bacterial communication remain understudied, and for further engineering of microbiomes with particular features, the knowledge on the potato microbiome should be summarized. The most recent approaches to microbiome engineering include the construction of a synthetic microbial community or management of the plant microbiome using genome engineering. In this review, the various factors that determine the microbiome of potato and approaches that allow us to mitigate the negative impact of drought and pathogens are surveyed.

A Comparative Analysis of Microbial Communities in the Rhizosphere Soil and Plant Roots of Healthy and Diseased Yuanyang Nanqi (Panax vietnamensis) with Root Rot

“…However, most previous studies on plant diseases have only analyzed the effect of strains on the disease using the culture method, which has certain limitations. The Illumina MiSeq high-throughput sequencing method used in this study overcomes this limitation and can obtain thousands of sequences at the same time, identifying many more microorganisms [44]. With this method, we have the chance to systematically compare the microbial communities in the rhizosphere soil and roots between diseased and healthy Nanqi, and to better understand the changes in microorganisms during root rot.…”

Potential Biofertilizers for Alkaline Soil: Bacteria Isolated from the Rhizosphere of Potatoes

“…In potatoes, the function of rhizosphere microorganisms is mainly concentrated on the resistance of pathogenic bacteria. Only a few studies have shown that arbuscular fungi, such as Rhizophagus irregularis, Funneliformis mosseae and Claroideoglomus etunicatum, and some bacteria, such as Enterobacter cloacae, Bacillus thuringiensis and Pseudomonas pseudoalcaligenes, can improve increase both the yield and nutritional quality of potatoes [7].…”