Cropping practices manipulate abundance patterns of root and soil microbiome members paving the way to smart farming

Microbiome, Journal Year: 2018, Volume and Issue: 6(1)

Published: Jan. 16, 2018

Harnessing beneficial microbes presents a promising strategy to optimize plant growth and agricultural sustainability. Little is known which extent how specifically soil microbiomes can be manipulated through different cropping practices. Here, we investigated wheat root microbial communities in system experiment consisting of conventional organic managements, both with tillage intensities. While richness was marginally affected, found pronounced effects on community composition, were specific for the respective microbiomes. Soil bacterial primarily structured by tillage, whereas fungal responded mainly management type additional tillage. In roots, also driving factor bacteria but not fungi, generally determined changes intensity. To quantify an "effect size" microbiota manipulation, that about 10% variation explained tested Cropping sensitive taxonomically diverse, they guilds taxa These included frequent members or co-occurring many other community, suggesting practices may allow manipulation influential members. Understanding abundance patterns basis towards developing strategies smart farming. For future targeted management—e.g., foster certain practices—a next step will identify functional traits microbes.

Language: Английский

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Understanding and exploiting plant beneficial microbes

Current Opinion in Plant Biology, Journal Year: 2017, Volume and Issue: 38, P. 155 - 163

Published: June 14, 2017

After a century of incremental research, technological advances, coupled with need for sustainable crop yield increases, have reinvigorated the study beneficial plant-microbe interactions attention focused on how microbiomes alter plant phenotypes. We review recent advances in microbiome and describe potential applications increasing productivity. The phylogenetic diversity is increasingly well characterized, their functional becoming more accessible. Large culture collections are available controlled experimentation, to come. Genetic resources being brought bear questions function. expect that microbial amendments varying complexities will expose rules governing contributing growth promotion disease resistance, enabling agriculture.

Language: Английский

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Inner Plant Values: Diversity, Colonization and Benefits from Endophytic Bacteria

Frontiers in Microbiology, Journal Year: 2017, Volume and Issue: 8

Published: Dec. 19, 2017

One of the most exciting scientific advances in recent decades has been realization that diverse and immensely active microbial communities are not only 'passengers' with plants, but instead play an important role plant growth, development resistance to biotic abiotic stresses. A picture is emerging where roots act as 'gatekeepers' screen soil bacteria from rhizosphere rhizoplane. This typically results root endophytic microbiome dominated by Proteobacteria, Actinobacteria a lesser extent Bacteroidetes Firmicutes, Acidobacteria Gemmatimonadetes being almost depleted. synthesis available data suggest motility, cell-wall degradation ability reactive oxygen species scavenging seem be crucial traits for successful colonization establishment bacteria. Recent studies provide solid evidence these serve host functions such improving nutrients through acquisition nitrogen fixation leaves. Additionally, some endophytes can engage 'priming' plants which elicit faster stronger defense once pathogens attack. Due growth-promoting effects, widely explored their use improvement crop performance. Updating insights into mechanism bacterial interactions step potentially manipulating bacteria/microbiome viable strategies improve agricultural production.

Language: Английский

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Simplified and representative bacterial community of maize roots

Proceedings of the National Academy of Sciences, Journal Year: 2017, Volume and Issue: 114(12)

Published: March 8, 2017

Plant-associated microbes are important for the growth and health of their hosts. As a result numerous prior studies, we know that host genotypes abiotic factors influence composition plant microbiomes. However, high complexity these communities challenges detailed studies to define experimentally mechanisms underlying dynamics community assembly beneficial effects such microbiomes on In this work, from distinctive microbiota assembled by maize roots, through host-mediated selection, obtained greatly simplified synthetic bacterial consisting seven strains (Enterobacter cloacae, Stenotrophomonas maltophilia, Ochrobactrum pituitosum, Herbaspirillum frisingense, Pseudomonas putida, Curtobacterium pusillum, Chryseobacterium indologenes) representing three four most dominant phyla found in roots. By using selective culture-dependent method track abundance each strain, investigated role plays roots axenic seedlings. Only removal E. cloacae led complete loss community, C. pusillum took over. This suggests keystone species model ecosystem. planta vitro, inhibited phytopathogenic fungus Fusarium verticillioides, indicating clear benefit host. Thus, combined with quantification method, our seven-species root microbiome has potential serve as useful system explore how interspecies interactions affect dissect hosts under laboratory conditions future.

Language: Английский

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Microbiome-Mediated Stress Resistance in Plants

Trends in Plant Science, Journal Year: 2020, Volume and Issue: 25(8), P. 733 - 743

Published: April 25, 2020

Language: Английский

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