Organic amendments to avocado crops induce suppressiveness and influence the composition and activity of soil microbial communities

Applied and Environmental Microbiology
Nuria BonillaA de Vicente

Abstract

One of the main avocado diseases in southern Spain is white root rot caused by the fungus Rosellinia necatrix Prill. The use of organic soil amendments to enhance the suppressiveness of natural soil is an inviting approach that has successfully controlled other soilborne pathogens. This study tested the suppressive capacity of different organic amendments against R. necatrix and analyzed their effects on soil microbial communities and enzymatic activities. Two-year-old avocado trees were grown in soil treated with composted organic amendments and then used for inoculation assays. All of the organic treatments reduced disease development in comparison to unamended control soil, especially yard waste (YW) and almond shells (AS). The YW had a strong effect on microbial communities in bulk soil and produced larger population levels and diversity, higher hydrolytic activity and strong changes in the bacterial community composition of bulk soil, suggesting a mechanism of general suppression. Amendment with AS induced more subtle changes in bacterial community composition and specific enzymatic activities, with the strongest effects observed in the rhizosphere. Even if the effect was not strong, the changes caused by AS in bulk soil m...Continue Reading

References

Jun 12, 2002·Current Opinion in Microbiology·Vigdis Torsvik, Lise Øvreås
Jul 31, 2002·Annual Review of Phytopathology·David M WellerLinda S Thomashow
Jul 31, 2004·Annual Review of Phytopathology·Mark Mazzola
Sep 16, 2005·Journal of Applied Microbiology·S M Tiquia
Sep 20, 2005·Bioresource Technology·E GomezS Toresani
Jun 15, 2007·FEMS Microbiology Letters·Hélène SauvageKarine Laval
Jul 13, 2007·Current Opinion in Plant Biology·Luis da CunhaDavid Mackey
Mar 12, 2008·Environmental Microbiology·Massimo MarzoratiWilly Verstraete
Jan 9, 2010·Bioresource Technology·Sunita Gaind, Lata Nain
Aug 19, 2011·Microbial Ecology·Zulma Rocío Suárez-MorenoVittorio Venturi
Nov 22, 2011·Applied and Environmental Microbiology·Erik S WrightDaniel R Noguera
Sep 10, 2013·Current Opinion in Microbiology·S S Epstein

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Citations

Feb 3, 2016·Frontiers in Microbiology·Carmen VidaFrancisco M Cazorla
Apr 24, 2018·Environmental Technology·Drashti PatelSonia M Tiquia-Arashiro
Jun 21, 2018·Frontiers in Microbiology·Jesús Mercado-BlancoDiogo N Proença
Sep 4, 2018·Frontiers in Plant Science·Chrysi SergakiPatrick Schäfer

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