Impact of Plant-Beneficial Bacterial Inocula on the Resident Bacteriome: Current Knowledge and Future Perspectives

The inoculation of plant growth-promoting bacteria (PGPB) as biofertilizers is one of the most efficient and sustainable strategies of rhizosphere manipulation leading to increased plant biomass and yield and improved plant health, as well as the ameliorated nutritional value of fruits and edible se...

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Main Authors: Francesco Vuolo, Giorgia Novello, Elisa Bona, Susanna Gorrasi, Elisa Gamalero
Format: Article
Language:English
Published: MDPI AG 2022-12-01
Series:Microorganisms
Subjects:
Online Access:https://www.mdpi.com/2076-2607/10/12/2462
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author Francesco Vuolo
Giorgia Novello
Elisa Bona
Susanna Gorrasi
Elisa Gamalero
author_facet Francesco Vuolo
Giorgia Novello
Elisa Bona
Susanna Gorrasi
Elisa Gamalero
author_sort Francesco Vuolo
collection DOAJ
description The inoculation of plant growth-promoting bacteria (PGPB) as biofertilizers is one of the most efficient and sustainable strategies of rhizosphere manipulation leading to increased plant biomass and yield and improved plant health, as well as the ameliorated nutritional value of fruits and edible seeds. During the last decades, exciting, but heterogeneous, results have been obtained growing PGPB inoculated plants under controlled, stressful, and open field conditions. On the other hand, the possible impact of the PGPB deliberate release on the resident microbiota has been less explored and the little available information is contradictory. This review aims at filling this gap: after a brief description of the main mechanisms used by PGPB, we focus our attention on the process of PGPB selection and formulation and we provide some information on the EU regulation for microbial inocula. Then, the concept of PGPB inocula as a tool for rhizosphere engineering is introduced and the possible impact of bacterial inoculant on native bacterial communities is discussed, focusing on those bacterial species that are included in the EU regulation and on other promising bacterial species that are not yet included in the EU regulation.
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spelling doaj.art-0d7e74d6c5314392bce4272c7cb1a3722023-11-24T16:49:29ZengMDPI AGMicroorganisms2076-26072022-12-011012246210.3390/microorganisms10122462Impact of Plant-Beneficial Bacterial Inocula on the Resident Bacteriome: Current Knowledge and Future PerspectivesFrancesco Vuolo0Giorgia Novello1Elisa Bona2Susanna Gorrasi3Elisa Gamalero4Sacco s.r.l. via Alessandro Manzoni, 29a, 22071 Cadorago, ItalyDipartimento di Scienze e Innovazione Tecnologica, Università del Piemonte Orientale, 15121 Alessandria, ItalyDipartimento per lo Sviluppo Sostenibile e la Transizione Ecologica, Università del Piemonte Orientale, 13100 Vercelli, ItalyDipartimento di Scienze Ecologiche e Biologiche, Università degli Studi della Tuscia, 01100 Viterbo, ItalyDipartimento di Scienze e Innovazione Tecnologica, Università del Piemonte Orientale, 15121 Alessandria, ItalyThe inoculation of plant growth-promoting bacteria (PGPB) as biofertilizers is one of the most efficient and sustainable strategies of rhizosphere manipulation leading to increased plant biomass and yield and improved plant health, as well as the ameliorated nutritional value of fruits and edible seeds. During the last decades, exciting, but heterogeneous, results have been obtained growing PGPB inoculated plants under controlled, stressful, and open field conditions. On the other hand, the possible impact of the PGPB deliberate release on the resident microbiota has been less explored and the little available information is contradictory. This review aims at filling this gap: after a brief description of the main mechanisms used by PGPB, we focus our attention on the process of PGPB selection and formulation and we provide some information on the EU regulation for microbial inocula. Then, the concept of PGPB inocula as a tool for rhizosphere engineering is introduced and the possible impact of bacterial inoculant on native bacterial communities is discussed, focusing on those bacterial species that are included in the EU regulation and on other promising bacterial species that are not yet included in the EU regulation.https://www.mdpi.com/2076-2607/10/12/2462PGPBresident microbiotabiofertilizer regulation<i>Azotobacter</i><i>Azospirillum</i><i>Rhizobia</i>
spellingShingle Francesco Vuolo
Giorgia Novello
Elisa Bona
Susanna Gorrasi
Elisa Gamalero
Impact of Plant-Beneficial Bacterial Inocula on the Resident Bacteriome: Current Knowledge and Future Perspectives
Microorganisms
PGPB
resident microbiota
biofertilizer regulation
<i>Azotobacter</i>
<i>Azospirillum</i>
<i>Rhizobia</i>
title Impact of Plant-Beneficial Bacterial Inocula on the Resident Bacteriome: Current Knowledge and Future Perspectives
title_full Impact of Plant-Beneficial Bacterial Inocula on the Resident Bacteriome: Current Knowledge and Future Perspectives
title_fullStr Impact of Plant-Beneficial Bacterial Inocula on the Resident Bacteriome: Current Knowledge and Future Perspectives
title_full_unstemmed Impact of Plant-Beneficial Bacterial Inocula on the Resident Bacteriome: Current Knowledge and Future Perspectives
title_short Impact of Plant-Beneficial Bacterial Inocula on the Resident Bacteriome: Current Knowledge and Future Perspectives
title_sort impact of plant beneficial bacterial inocula on the resident bacteriome current knowledge and future perspectives
topic PGPB
resident microbiota
biofertilizer regulation
<i>Azotobacter</i>
<i>Azospirillum</i>
<i>Rhizobia</i>
url https://www.mdpi.com/2076-2607/10/12/2462
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