2020 journal article

Bacterial Community Structure Dynamics in Meloidogyne incognita-Infected Roots and Its Role in Worm-Microbiome Interactions

MSPHERE, 5(4).

By: T. Yergaliyev *, R. Alexander-Shani*, H. Dimerets*, S. Pivonia*, D. Bird n , S. Rachmilevitch *, A. Szitenberg *

author keywords: Meloidogyne incognita; bacterial succession; microbiome; plant-microbe interactions; root knot nematode
MeSH headings : Animals; Bacteria / classification; Bacteria / metabolism; DNA Barcoding, Taxonomic; Genetic Variation; Host Microbial Interactions; Microbiota; Phylogeny; Plant Roots / microbiology; Plant Roots / parasitology; RNA, Ribosomal, 16S / genetics; Rhizosphere; Soil; Soil Microbiology; Tylenchoidea / microbiology; Tylenchoidea / physiology
TL;DR: It is indicated that a structured community develops in the root, in which gall communities diverge from root segments lacking a gall, and that this structure is maintained throughout the crop season. (via Semantic Scholar)
UN Sustainable Development Goal Categories
2. Zero Hunger (Web of Science)
13. Climate Action (Web of Science)
Source: Web Of Science
Added: September 28, 2020

The study of high-resolution successional processes within tightly linked microniches is rare. Using the power and relatively low cost of metabarcoding, we describe the bacterial succession and community structure in roots infected with root-knot nematodes and in the nematodes themselves. We reveal separate successional processes in galls and adjacent non-gall root sections, which are driven by the nematode’s life cycle and the progression of the crop season. With their relatively low genetic diversity, large geographic range, spatially complex life cycle, and the simplified agricultural ecosystems they occupy, root-knot nematodes can serve as a model organism for terrestrial holobiont ecology. This perspective can improve our understanding of the temporal and spatial aspects of biological control efficacy.