NDLI: Ecological role of bacterial inoculants and their potential impact on soil microbial diversity

Content Provider	Springer Nature Link
Author	Ambrosini, Adriana Souza, Rocheli Passaglia, Luciane M. P.
Copyright Year	2015
Abstract	Microbial inoculants are an alternative method of increasing crop productivity that can reduce the use of chemical fertilizers, which is one of the more controversial agricultural practices that affect the environment. Beneficial bacteria, collectively known as plant growth-promoting bacteria (PGPB), enhance plant growth and protect plants from disease and abiotic stresses through a wide variety of mechanisms. Bacterial inoculation efficiency is associated with the beneficial features of the inoculated bacterium, as well as with the complex network of interactions occurring in the soil.Beneficial bacteria have previously been examined for interactions with different plant hosts, soil types, and agricultural practices, but there is limited information concerning the potential effects of the release of microorganisms on soil functionality. Despite the plant growth promotion characteristics, the survival, abundance, and persistence of inoculant in soil or plant roots are characteristics that could potentially lead to its invasiveness. Inoculants can also interfere with soil health and microbial and faunal community composition.This review presents an overview of plant-PGPB interactions and their impacts on microbial communities, hypothesizing about the potential of these interactions to promote positive disturbances in soil, mainly in poor environments. The inoculation of free-living bacteria seems to cause a short-term impact to agricultural soils, while rhizobia-based inoculants or bacterial inoculations performed under stress conditions are long-term processes. However, there is great variability amongst results concerning the effects of bacterial inoculation into different plant and soil conditions.
Starting Page	193
Ending Page	207
Page Count	15
File Format	PDF
ISSN	0032079X
Journal	Plant and Soil
Volume Number	400
Issue Number	1-2
e-ISSN	15735036
Language	English
Publisher	Springer International Publishing
Publisher Date	2015-11-06
Publisher Place	Cham
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	PGPB Free-living bacteria Rhizobia Disturbance Impact Microbial diversity Plant Sciences Soil Science & Conservation Plant Physiology Ecology
Content Type	Text
Resource Type	Article
Subject	Soil Science Plant Science

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