Beyond pathogens: microbiota interactions with the plant immune system

Current Opinion in Microbiology, Journal Year: 2019, Volume and Issue: 49, P. 7 - 17

Published: June 1, 2019

Language: Английский

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An extended root phenotype: the rhizosphere, its formation and impacts on plant fitness

The Plant Journal, Journal Year: 2020, Volume and Issue: 103(3), P. 951 - 964

Published: April 23, 2020

Plants forage soil for water and nutrients, whose distribution is patchy often dynamic. To improve their foraging activities, plants have evolved mechanisms to modify the physicochemical properties microbial communities of rhizosphere, i.e. compartment under influence roots. This dynamic interplay in root-soil-microbiome interactions creates emerging that impact plant nutrition health. As a consequence, rhizosphere can be considered an extended root phenotype, manifestation effects genes on environment inside and/or outside organism. Here, we review current understanding how shape benefits it confers fitness. We discuss future research challenges applying solutions crops will enable us harvest phenotype.

Language: Английский

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Biocontrol of Postharvest Fruit Fungal Diseases by Bacterial Antagonists: A Review

Agronomy, Journal Year: 2019, Volume and Issue: 9(3), P. 121 - 121

Published: March 5, 2019

This review deals with the main mechanisms of action exerted by antagonistic bacteria, such as competition for space and nutrients, suppression via siderophores, hydrolytic enzymes, antibiosis, biofilm formation, induction plant resistance. These inhibit phytopathogen growth that affects postharvest fruit since quality safety parameters are influenced these microorganisms, which cause production losses in more than 50% tree species. The use synthetic fungicide products has been dominant control strategy diseases caused fungi. However, their excessive inappropriate intensive agriculture brought about problems have led to environmental contamination, considerable residues agricultural products, Thus, there is a need generate alternatives safe, ecological, economically viable face this problem. Phytopathogen inhibition utilizing antagonist microorganisms recognized type biological (BC), could represent environmentally safe alternative fungicides. Despite ecological benefit derives from controllers agents (BCA) at commercial level, application efficient minimal global level.

Language: Английский

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Transcriptome landscape of a bacterial pathogen under plant immunity

Proceedings of the National Academy of Sciences, Journal Year: 2018, Volume and Issue: 115(13)

Published: March 12, 2018

Plant pathogens can cause serious diseases that impact global agriculture. The plant innate immunity, when fully activated, halt pathogen growth in plants. Despite extensive studies into the molecular and genetic bases of immunity against pathogens, influence metabolism to restrict is poorly understood. Here, we developed RNA sequencing pipelines for analyzing bacterial transcriptomes planta determined high-resolution transcriptome patterns foliar Pseudomonas syringae Arabidopsis thaliana with a total 27 combinations mutants strains. Bacterial were analyzed at 6 h post infection capture early effects on processes avoid secondary caused by different population densities We identified specific "immune-responsive" genes processes, including those are activated susceptible plants suppressed immune activation. Expression immune-responsive time point tightly linked later levels host genotypes. Moreover, found iron acquisition pathway commonly multiple immune-signaling pathways. Overexpression P. sigma factor gene involved regulation other partially countered restriction during response triggered AvrRpt2. Collectively, this study defines sheds light enigmatic mechanisms inhibition response.

Language: Английский

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Rhizosphere-Associated Pseudomonas Suppress Local Root Immune Responses by Gluconic Acid-Mediated Lowering of Environmental pH

Current Biology, Journal Year: 2019, Volume and Issue: 29(22), P. 3913 - 3920.e4

Published: Oct. 24, 2019

Language: Английский

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