Vermicompost significantly affects plant growth. A meta-analysis

Blouin, Manuel; Barrere, Julien; Meyer, Nicolas; Lartigue, Silène; Barot, Sébastien; Mathieu, Jérôme

doi:10.1007/s13593-019-0579-x

Cited by 155 publications

(104 citation statements)

References 41 publications

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“…These variations in functional diversity of the bacterial communities over the course of vermicomposting could provide a plausible microbial-derived mechanism by which improved plant performance occurs when grown in vermicompost [12,57,58,59]. In line with this, Song et al [58] found that adding vermicompost enhanced the beneficial effects of plant growth-promoting rhizobacteria on both soil and crop, but the extent of this promotion varied with the dose of vermicompost and the crop type.…”

Section: Discussionmentioning

confidence: 99%

Rapid Bacterial Community Changes during Vermicomposting of Grape Marc Derived from Red Winemaking

et al. 2019

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Previous studies dealing with changes in microbial communities during vermicomposting were mostly performed at lab-scale conditions and by using low-throughput techniques. Therefore, we sought to characterize the bacterial succession during the vermicomposting of grape marc over a period of 91 days in a pilot-scale vermireactor. Samples were taken at the initiation of vermicomposting, and days 14, 28, 42, and 91, representing both active and mature stages of vermicomposting. By using 16S rRNA high-throughput sequencing, significant changes in the bacterial community composition of grape marc were found after 14 days and throughout the process (p < 0.0001). There was also an increase in bacterial diversity, both taxonomic and phylogenetic, from day 14 until the end of the trial. We found the main core microbiome comprised of twelve bacterial taxa (~16.25% of the total sequences) known to be capable of nitrogen fixation and to confer plant-disease suppression. Accordingly, functional diversity included increases in specific genes related to nitrogen fixation and synthesis of plant hormones (salicylic acid) after 91 days. Together, the findings support the use of grape marc vermicompost for sustainable practices in the wine industry by disposing of this high-volume winery by-product and capturing its value to improve soil fertility.

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Section: Discussionmentioning

confidence: 99%

Rapid Bacterial Community Changes during Vermicomposting of Grape Marc Derived from Red Winemaking

et al. 2019

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“…While the influence of plants on soil microbial communities is well documented (e.g. Philippot et al, 2013), the overlooked role of earthworms may be as important (Brown et al 2004;de Menezes et al 2018;Blouin et al 2019;Medina-Sauza et al 2019), given they represent the largest soil animal biomass in most terrestrial ecosystems (Bouché 1972). Indeed, root microbiota are renowned for their importance on plant health (Tkacz & Poole 2015;Pérez-Jaramillo et al 2016;Finkel et al 2017), but so far very few is known regarding the role of microbes leaving in contact with earthworms (Medina-Sauza et al 2019).…”

Section: Introductionmentioning

confidence: 99%

A core microbiota of the plant-earthworm interaction conserved across soils

Jacquiod

Puga-Freitas

Spor

et al. 2020

Soil Biology and Biochemistry

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The core microbiota defines the fraction of microorganisms common to all individuals from the same host species regardless of the abiotic context, be they located inside (e.g. animal guts) or outside (e.g. plant rhizospheres). While the core microbiota of many host species have been documented, no studies attempted to decipher how these core microbiota could be altered when their respective host species are interacting. We thus tested the hypothesis that interactions between different host species possessing external microbiota could result in a novel emerging entity: a core microbiota of an interaction. This is particularly true in soils, where such interactions are likely to occur between different host species harboring external microbiota, like plants through rhizospheres and earthworms through drilospheres. Using three contrasting soils (sand, loam or clay) and a meticulous sampling of different microhabitats (rhizospheres, casts and bulk) coupled to a "sourcesink approach" derived from the meta-community theory, we evidenced the presence of a conserved core microbiota of bacterial OTUs resulting from plant-earthworm interactions in all soils. This interaction was also evidenced using a tailored network analysis, revealing the presence of signature OTUs always found in earthworms casts and plant rhizospheres, and whose co-occurrence patterns were indicative of soil type. Furthermore, qPCR abundance estimates revealed that not only bacteria, but also fungi and archeae, are affected by plant-earthworm interactions. Our findings provide a new framework to explore aboveground-belowground interactions through the prism of microbial communities.

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“…On the one hand, it may provide a means to neutralize the pH of this winery byproduct, as previously shown by Domínguez et al [2]. And, on the other hand, vermicomposting has been shown to effectively reduce organic biomass and generate high-quality fertilizer with beneficial effects on soil and plants [18,19].…”

Section: Introductionmentioning

confidence: 94%

Temporal Dynamics of Bacterial Communities in a Pilot-Scale Vermireactor Fed with Distilled Grape Marc

et al. 2020

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Vermicomposting has been found as a profitable approach to dispose of and treat large quantities of raw grape marc. However, less information is available with regard to its efficiency for treating distillery winery byproducts, even though distillation has been widely used as a way to economically valorize grape marc. As such, we sought to characterize the compositional and functional changes in bacterial communities during vermicomposting of distilled grape marc by using 16S rRNA high-throughput sequencing. Samples were collected at the initiation of vermicomposting and at days 14, 21, 28, 35 and 42. There were significant changes (p < 0.0001) in the bacterial community composition of distilled grape marc after 14 days of vermicomposting that were accompanied by twofold increases in bacterial richness and diversity from a taxonomic and phylogenetic perspective. This was followed by significant increases in functional diversity of the bacterial community, including metabolic capacity, lignin and cellulose metabolism, and salicylic acid synthesis. These findings indicate that the most striking compositional and functional bacterial community changes took place during the active phase of the process. They also pinpoint functional attributes that may be related to the potential beneficial effects of distilled grape marc vermicompost when applied on soil and plants.

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Vermicompost significantly affects plant growth. A meta-analysis

Cited by 155 publications

References 41 publications

Rapid Bacterial Community Changes during Vermicomposting of Grape Marc Derived from Red Winemaking

Rapid Bacterial Community Changes during Vermicomposting of Grape Marc Derived from Red Winemaking

A core microbiota of the plant-earthworm interaction conserved across soils

Temporal Dynamics of Bacterial Communities in a Pilot-Scale Vermireactor Fed with Distilled Grape Marc

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