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Biology (Basel)

Title:		Rhizosphere Colonization Determinants by Plant Growth-Promoting Rhizobacteria (PGPR)
Author(s):		Santoyo G; Urtis-Flores CA; Loeza-Lara PD; Orozco-Mosqueda MDC; Glick BR;
Address:		"Instituto de Investigaciones Quimico-Biologicas, Universidad Michoacana de San Nicolas de Hidalgo, Morelia 58030, Mexico. Licenciatura en Genomica Alimentaria, Universidad de La Cienega del Estado de Michoacan de Ocampo, Sahuayo 59103, Mexico. Facultad de Agrobiologia 'Presidente Juarez', Universidad Michoacana de San Nicolas de Hidalgo, Melchor Ocampo, Uruapan 60170, Mexico. Department of Biology, University of Waterloo, Waterloo, ON N2L 3G1, Canada"
Journal Title:		Biology (Basel)
Year:		2021
Volume:		20210527
Issue:		6
Page Number:		-
DOI:		10.3390/biology10060475
ISSN/ISBN:		2079-7737 (Print) 2079-7737 (Electronic) 2079-7737 (Linking)
Abstract:		"The application of plant growth-promoting rhizobacteria (PGPR) in the field has been hampered by a number of gaps in the knowledge of the mechanisms that improve plant growth, health, and production. These gaps include (i) the ability of PGPR to colonize the rhizosphere of plants and (ii) the ability of bacterial strains to thrive under different environmental conditions. In this review, different strategies of PGPR to colonize the rhizosphere of host plants are summarized and the advantages of having highly competitive strains are discussed. Some mechanisms exhibited by PGPR to colonize the rhizosphere include recognition of chemical signals and nutrients from root exudates, antioxidant activities, biofilm production, bacterial motility, as well as efficient evasion and suppression of the plant immune system. Moreover, many PGPR contain secretion systems and produce antimicrobial compounds, such as antibiotics, volatile organic compounds, and lytic enzymes that enable them to restrict the growth of potentially phytopathogenic microorganisms. Finally, the ability of PGPR to compete and successfully colonize the rhizosphere should be considered in the development and application of bioinoculants"
Keywords:		biocontrol bioinoculants rhizosphere sustainable agriculture;
Notes:		"PubMed-not-MEDLINESantoyo, Gustavo Urtis-Flores, Carlos Alberto Loeza-Lara, Pedro Damian Orozco-Mosqueda, Ma Del Carmen Glick, Bernard R eng Review Switzerland 2021/06/03 Biology (Basel). 2021 May 27; 10(6):475. doi: 10.3390/biology10060475"