RT Journal Article
SR Electronic
T1 Seed microbiota revealed by a large-scale meta-analysis including 50 plant species
JF bioRxiv
FD Cold Spring Harbor Laboratory
SP 2021.06.08.447541
DO 10.1101/2021.06.08.447541
A1 Marie Simonin
A1 Martial Briand
A1 Guillaume Chesneau
A1 Aude Rochefort
A1 Coralie Marais
A1 Alain Sarniguet
A1 Matthieu Barret
YR 2021
UL http://biorxiv.org/content/early/2021/06/08/2021.06.08.447541.abstract
AB Seed microbiota constitutes a primary inoculum for plants that is gaining attention due to its role for plant health and productivity. Here, we performed a meta-analysis on 63 seed microbiota studies covering 50 plant species to synthesize knowledge on the diversity of this habitat. Seed microbiota are diverse and extremely variable, with taxa richness varying from one to thousands of taxa. Hence, seed microbiota presents a variable (i.e flexible) microbial fraction but we also identified a stable (i.e. core) fraction across samples. Around 30 bacterial and fungal taxa are present in most plant species and in samples from all over the world. Core taxa, such as Pantoea agglomerans, Pseudomonas viridiflava, P. fluorescens, Cladosporium perangustum and Alternaria sp., are dominant seed taxa. The characterization of the core and flexible seed microbiota provided here will help uncover seed microbiota roles for plant health and design effective microbiome engineering.Competing Interest StatementThe authors have declared no competing interest.