Resistance Breeding of Common Bean Shapes the Physiology of the Rhizosphere Microbiome

Mendes, Lucas William; Chaves, Maria Luiza Morais Barreto de; Fonseca, Mariley de Cássia da; Mendes, Rodrigo; Raaijmakers, Jos M.; Tsai, Siu Mui

doi:10.3389/fmicb.2019.02252

Cited by 39 publications

(19 citation statements)

References 53 publications

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“…Surprisingly, breeding was shown to cause similar, long-term microbiome shifts as well ( Pérez-Jaramillo et al, 2018 ). In the last centuries, plant breeding was directed to high yields and to resistance toward pathogens; high yield cultivars enriched plant growth promoting microorganisms ( Pérez-Jaramillo et al, 2018 ), while resistant cultivars enrich microorganisms antagonistic toward pathogens ( Adam et al, 2018 ; Mendes et al, 2019 ; Wolfgang et al, 2020 ). For example, Rhizoctonia -tolerant cultivars of sugar beet, mainly mediated by the Fort Collins Resistance (USDA), resulted in an enrichment of bioactive Pseudomonas strains in the rhizosphere.…”

Section: Discussionmentioning

confidence: 99%

Microbiome Modulation—Toward a Better Understanding of Plant Microbiome Response to Microbial Inoculants

et al. 2021

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Plant-associated microorganisms are involved in important functions related to growth, performance and health of their hosts. Understanding their modes of action is important for the design of promising microbial inoculants for sustainable agriculture. Plant-associated microorganisms are able to interact with their hosts and often exert specific functions toward potential pathogens; the underlying in vitro interactions are well studied. In contrast, in situ effects of inoculants, and especially their impact on the plant indigenous microbiome was mostly neglected so far. Recently, microbiome research has revolutionized our understanding of plants as coevolved holobionts but also of indigenous microbiome-inoculant interactions. Here we disentangle the effects of microbial inoculants on the indigenous plant microbiome and point out the following types of plant microbiome modulations: (i) transient microbiome shifts, (ii) stabilization or increase of microbial diversity, (iii) stabilization or increase of plant microbiome evenness, (iv) restoration of a dysbiosis/compensation or reduction of a pathogen-induced shift, (v) targeted shifts toward plant beneficial members of the indigenous microbiota, and (vi) suppression of potential pathogens. Therefore, we suggest microbiome modulations as novel and efficient mode of action for microbial inoculants that can also be mediated via the plant.

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Section: Discussionmentioning

confidence: 99%

Microbiome Modulation—Toward a Better Understanding of Plant Microbiome Response to Microbial Inoculants

et al. 2021

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“…Many crop varieties have been developed to resist specific pathogens by introduction of traits from ancient or wild relatives into modern commercial varieties [ 86 , 87 ]. Interestingly, currently selected plant disease resistance traits are largely associated with alterations of crop-plant metabolism, while some may actually stem from improvements of interactions that enhance microbial biocontrol [ 88 , 89 ]. Although breeding efforts have been very successful [ 90 , 91 ], cases of resistance breakdown tend to emerge within a few years of release of a new variety.…”

Section: Understanding the Plant Holobiont Will Improve Sustainable Agriculturementioning

confidence: 99%

The Coevolution of Plants and Microbes Underpins Sustainable Agriculture

et al. 2021

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Terrestrial plants evolution occurred in the presence of microbes, the phytomicrobiome. The rhizosphere microbial community is the most abundant and diverse subset of the phytomicrobiome and can include both beneficial and parasitic/pathogenic microbes. Prokaryotes of the phytomicrobiome have evolved relationships with plants that range from non-dependent interactions to dependent endosymbionts. The most extreme endosymbiotic examples are the chloroplasts and mitochondria, which have become organelles and integral parts of the plant, leading to some similarity in DNA sequence between plant tissues and cyanobacteria, the prokaryotic symbiont of ancestral plants. Microbes were associated with the precursors of land plants, green algae, and helped algae transition from aquatic to terrestrial environments. In the terrestrial setting the phytomicrobiome contributes to plant growth and development by (1) establishing symbiotic relationships between plant growth-promoting microbes, including rhizobacteria and mycorrhizal fungi, (2) conferring biotic stress resistance by producing antibiotic compounds, and (3) secreting microbe-to-plant signal compounds, such as phytohormones or their analogues, that regulate aspects of plant physiology, including stress resistance. As plants have evolved, they recruited microbes to assist in the adaptation to available growing environments. Microbes serve themselves by promoting plant growth, which in turn provides microbes with nutrition (root exudates, a source of reduced carbon) and a desirable habitat (the rhizosphere or within plant tissues). The outcome of this coevolution is the diverse and metabolically rich microbial community that now exists in the rhizosphere of terrestrial plants. The holobiont, the unit made up of the phytomicrobiome and the plant host, results from this wide range of coevolved relationships. We are just beginning to appreciate the many ways in which this complex and subtle coevolution acts in agricultural systems.

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“…The most efficient way to manage pathological problems, and particularly soil diseases, is trough the of resistant cultivars (Mendes et al, 2019). Since 1995, in Costa Rica the methodology of participative plant breeding has been used, helping generate varieties with a greater resistance to biotic and abiotic problems, higher productivity and better adapted to conditions of small-scale farming (Hernández et al, 2018).…”

Section: Fully Bilingualmentioning

confidence: 99%

Fungi associated with common bean (Phaseolus vulgaris) wilt in Costa Rica

Montero¹,

Chaves-Barrantes²,

Chaverri³

et al. 2021

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Las pudriciones radicales limitan el rendimiento del frijol (Phaseolus vulgaris), y aunque en Costa Rica son frecuentes, la identidad de los hongos asociados a ellas es incierta. El objetivo de esta investigación fue identificar molecularmente los hongos asociados a las pudriciones radicales y marchitez del frijol en las dos principales zonas productoras del país. Entre 2017 y 2020, se recolectaron 120 plantas en 20 fincas de las regiones Huetar Norte y Brunca. Se muestrearon líneas experimentales (IBC 302-29 y ALS 0536-6) y variedades comerciales (Brunca, Cabécar, Chánguena, Guaymí, Nambí y Tayní). Se describieron los síntomas observados en campo y se efectuaron aislamientos en agar agua rosa de bengala cloranfenicol, luego cultivos puros de punta de hifa en agar agua, que se trasfirieron a papa dextrosa agar para determinar morfotipos con el uso de claves taxonómicas. Los hongos aislados también se identificaron mediante secuenciación de la región ITS del ADN nuclear ribosomal. Se calculó el porcentaje de frecuencia relativa de morfotipos. Los más frecuentes fueron Macrophomina phaseolina (26.7%), Fusarium oxysporum (13.6%) y Athelia rolfsii (5.6%). A partir de los síntomas de marchitez observados en campo se aislaron los hongos comúnmente descritos en frijol para esas patologías. Es necesario realizar pruebas de patogenicidad para confirmar que son los agentes causales.

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Resistance Breeding of Common Bean Shapes the Physiology of the Rhizosphere Microbiome

Cited by 39 publications

References 53 publications

Microbiome Modulation—Toward a Better Understanding of Plant Microbiome Response to Microbial Inoculants

Microbiome Modulation—Toward a Better Understanding of Plant Microbiome Response to Microbial Inoculants

The Coevolution of Plants and Microbes Underpins Sustainable Agriculture

Fungi associated with common bean (Phaseolus vulgaris) wilt in Costa Rica

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