Genetic analysis of tomato root colonization by arbuscular mycorrhizal fungi

Plouznikoff, Katia; Asíns, M. J.; Boulois, Hervé Dupré de; Carbonell, E. A.; Declerck, Stéphane

doi:10.1093/aob/mcy240

Cited by 24 publications

(21 citation statements)

References 73 publications

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“…Las escalas subjetivas son utilizadas como una herramienta para evaluar algunas variables sin llevar a cabo la destrucción de plantas. Clases o escalas similares las adoptaron en estudios de la simbiosis This study normalized the data obtained in the subjective scale, which allowed developing the E m Index that demonstrated a similar tendency to quantitative data (Figures 1, 2, 3); the results showed that the production of coffee plants inoculated with the CMgrp consortium experienced less harm by P. costarrisensis, which has also been demonstrated by several authors who pointed out that the presence of mycorrhizal fungi granted plants tolerance or resistance to harm by pathogens (Plouznikoff et al, 2019;El-Sharkawy et al, 2018;Trejo Aguilar et al, 2018). The data obtained in this study show that not all the varieties responded to the mycorrhizal inoculation, so other coffee varieties should be assessed in future studies.…”

Section: Sanidad De Las Plantassupporting

confidence: 59%

“…En este trabajo la normalización de los datos obtenidos en la escala subjetiva, permitió desarrollar el índice E m, que mostró una tendencia similar a los datos cuantitativos (Figuras 1, 2 y 3). En este estudio se demostró que la producción de plantas de café inoculadas con el consorcio CMgrp, presentaron menor daño por P. costarrisensis, esto se ha demostrado por diversos autores, quienes señalan que la presencia de los hongos micorrízicos otorgan a la planta tolerancia o resistencia a daños por patógenos (Plouznikoff et al, 2019;El-Sharkawy et al, 2018;Trejo-Aguilar et al, 2018). Los datos obtenidos muestran que no todas las variedades respondieron a la inoculación micorrízica, por lo que se sugiere probar en otras variedades de café.…”

Section: Discussionunclassified

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La micorriza arbuscular como biofertilizante en cultivo de café

Hernández-Acosta

Aguilar²,

Rivera-Fernández³

et al. 2020

Terra

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En f incas cafetaleras del sureste de México, la degradación química, física y biológica de los suelos afecta la producción de plantas. Esta situación perjudica económicamente a los cafeticultores, por lo que es común encontrar un descuido en sus plantaciones donde labores de cultivo como la poda y fertilización son costosas. Para resolver el problema del costo de fertilizantes, se recomienda la aplicación de inóculos micorrízicos arbusculares, su efectividad queda clara en hortalizas y frutales. Se evaluó la respuesta de dos inóculos del Colegio de Posgraduados, de una especie, (Rhizophagus aggregatus) y un consorcio (Glomus claroides, Rhizophagus diaphanus y Paraglomus albidum) (CMgrp) en plántulas de las variedades de café garnica, catimor, caturra y catuaí, con la f inalidad de ubicar la mejor simbiosis planta-hongo. Se evaluaron las variables altura de la planta, materia seca, contenido de fósforo en hojas, porcentaje de colonización micorrízica, porcentaje de la ef iciencia micorrízica, porcentaje de fósforo absorbido por la micorrización y el índice de ef iciencia de la micorrización en la sanidad de la planta (Em). Los resultados mostraron que el consorcio CMgrp generó los valores e incrementos más altos con respecto a las plantas no inoculadas en las variables altura de la planta y materia seca (1774 y 1701% para la variedad garnica respectivamente) y contenido de fósforo (650% en la variedad catimor). La respuesta de las plantas a la micorrización mostró los mejores resultados en las variedades garnica (34.32% porcentaje de colonización) y caturra (1670% de ef iciencia micorrízica y 1651% fósforo absorbido por efecto de la micorrización). El índice Em reveló que las plantas de café inoculadas con el CMgrp presentaron mejor sanidad. Se recomienda utilizar al consorcio CMgrp como biofertilizante en plantas de café, para asegurar el éxito del trasplante, situación que representará un ahorro económico y de tiempo para el cafeticultor.

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Section: Sanidad De Las Plantassupporting

confidence: 59%

Section: Discussionunclassified

La micorriza arbuscular como biofertilizante en cultivo de café

Hernández-Acosta

Aguilar²,

Rivera-Fernández³

et al. 2020

Terra

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“…The present analysis is not directly informative as to the mechanisms underlying variation in host response. The level of AM colonization has been reported to differ among varieties in a number of plant species, although greater colonization is not necessarily an indicator of greater host response (Kaeppler et al, 2000;Sawers et al, 2010Sawers et al, , 2017Mascher et al,2014;Watts-Williams et al, 2019;Plouznikoff et al, 2019;Pawlowski et al, 2020). Indeed, the capacity of the host to limit fungal colonization under certain conditions may help to maximize plant benefit, and it is well established that colonization is reduced under nutrient replete conditions (Nouri et al, 2014;Sawers et al, 2017;Karlo et al, 2020).…”

Section: Discussionmentioning

confidence: 99%

The genetic architecture of host response reveals the importance of arbuscular mycorrhizae to maize cultivation

Ramírez-Flores

Perez-Limon

et al. 2020

Preprint

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AbstractArbuscular mycorrhizal fungi (AMF) are ubiquitous in cultivated soils, forming symbiotic relationships with the roots of major crop species. Although physiological and molecular genetic studies have demonstrated the potential of the symbiosis to enhance host plant nutrition and alleviate environmental stress, experimental difficulties have complicated estimation of the actual benefit in the field. Furthermore, host response to the symbiosis can range from positive to negative depending on the plant variety. Here, a novel mapping strategy, based on the use of AMF-resistant plant varieties, was implemented to evaluate maize response to arbuscular mycorrhiza in the field. AMF were found to make a significant contribution to plant growth and yield components, both in terms of absolute affect and as a driver of variation among plant genotypes. Characterization of the genetic architecture of host response distinguished mycorrhiza dependence and benefit and indicated genetic trade-off between mycorrhizal and non-mycorrhizal growth. This approach is applicable to other crop species, permits further mechanistic analysis and is scalable to yield trials.

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“…Comparing the QTLs in the present study with the 8 QTLs that determined the ability of the root to be colonized by arbuscular mycorrhizal fungi (AMF) using the same RIL population [ 52 ] showed that four of them (AMF_Col_10, AMF_Col_4, AMF_Col_6, and AMF_Col_9) were close to QTL clusters XI, IV, VI, and IX, determining xylem nutrient (especially Mn) concentration, under water deficit ( Table S4 ). Interestingly, the plant-AMF interaction benefits plant water and nutrient acquisition [ 53 ].…”

Section: Discussionmentioning

confidence: 90%

Genetic Analysis of Root-to-Shoot Signaling and Rootstock-Mediated Tolerance to Water Deficit in Tomato

Asíns

Albacete

Martínez‐Andújar

et al. 2020

Genes

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Developing drought-tolerant crops is an important strategy to mitigate climate change impacts. Modulating root system function provides opportunities to improve crop yield under biotic and abiotic stresses. With this aim, a commercial hybrid tomato variety was grafted on a genotyped population of 123 recombinant inbred lines (RILs) derived from Solanum pimpinellifolium, and compared with self- and non-grafted controls, under contrasting watering treatments (100% vs. 70% of crop evapotranspiration). Drought tolerance was genetically analyzed for vegetative and flowering traits, and root xylem sap phytohormone and nutrient composition. Under water deficit, around 25% of RILs conferred larger total shoot dry weight than controls. Reproductive and vegetative traits under water deficit were highly and positively correlated to the shoot water content. This association was genetically supported by linkage of quantitative trait loci (QTL) controlling these traits within four genomic regions. From a total of 83 significant QTLs, most were irrigation-regime specific. The gene contents of 8 out of 12 genomic regions containing 46 QTLs were found significantly enriched at certain GO terms and some candidate genes from diverse gene families were identified. Thus, grafting commercial varieties onto selected rootstocks derived from S. pimpinellifolium provides a viable strategy to enhance drought tolerance in tomato.

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Genetic analysis of tomato root colonization by arbuscular mycorrhizal fungi

Cited by 24 publications

References 73 publications

La micorriza arbuscular como biofertilizante en cultivo de café

La micorriza arbuscular como biofertilizante en cultivo de café

The genetic architecture of host response reveals the importance of arbuscular mycorrhizae to maize cultivation

Genetic Analysis of Root-to-Shoot Signaling and Rootstock-Mediated Tolerance to Water Deficit in Tomato

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