Fraxinus–Glomus–Pisolithus symbiosis: Plant growth and soil aggregation effects

Ambriz, Enrique; Báez-Pérez, Ana Laura; Sanchez–Yáñez, Juan Manuel; Moutoglis, Peter; Villegas, Javier

doi:10.1016/j.pedobi.2010.07.001

Cited by 25 publications

(12 citation statements)

References 43 publications

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“…To minimize errors, we relied heavily on studies providing photographs of the characteristic mycorrhizal structures or clear methodology that would have avoided misdiagnoses. For example, Fraxinus is a tree genus that has traditionally been considered AM (Harley & Harley, 1987), but recent studies clearly show EM structures in some species, such as Fraxinus uhdei (Ambriz et al, 2010). Another example is the EM status of the perennial herb Pulsatilla patens that grows in Pinus sylvestris forests (Hoeksema et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Dual‐mycorrhizal plants: their ecology and relevance

2019

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Summary Dual‐mycorrhizal plants are capable of associating with fungi that form characteristic arbuscular mycorrhizal (AM) and ectomycorrhizal (EM) structures. Here, we address the following questions: (1) How many dual‐mycorrhizal plant species are there? (2) What are the advantages for a plant to host two, rather than one, mycorrhizal types? (3) Which factors can provoke shifts in mycorrhizal dominance (i.e. mycorrhizal switching)? We identify a large number (89 genera within 32 families) of confirmed dual‐mycorrhizal plants based on observing arbuscules or coils for AM status and Hartig net or similar structures for EM status within the same plant species. We then review the possible nutritional benefits and discuss the possible mechanisms leading to net costs and benefits. Cost and benefits of dual‐mycorrhizal status appear to be context dependent, particularly with respect to the life stage of the host plant. Mycorrhizal switching occurs under a wide range of abiotic and biotic factors, including soil moisture and nutrient status. The relevance of dual‐mycorrhizal plants in the ecological restoration of adverse sites where plants are not carbon limited is discussed. We conclude that dual‐mycorrhizal plants are underutilized in ecophysiological‐based experiments, yet are powerful model plant–fungal systems to better understand mycorrhizal symbioses without confounding host effects.

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Section: Introductionmentioning

confidence: 99%

Dual‐mycorrhizal plants: their ecology and relevance

2019

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“…The heartleaf hornbeam (Carpinus cordata) is an ECM deciduous tree native to northeast Asia that grows in shaded, moist valley forests (Smith and Read, 2010;Kwon et al, 2014). Fraxinus rhynchophylla, a species of ash tree distributed in East Asia, grows well on nutrient-rich soils and is an AM tree (Ambriz et al, 2010). Both C. cordata and F. rhynchophylla are climax species commonly found in Korean temperate forests (Lee et al, 1990;Cho et al, 2005;Park et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Influence of Season and Soil Properties on Fungal Communities of Neighboring Climax Forests (Carpinus cordata and Fraxinus rhynchophylla)

Park

Yoo

et al. 2020

Front. Microbiol.

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Trees in forest ecosystems constantly interact with the soil fungal community, and this interaction plays a key role in nutrient cycling. The diversity of soil fungal communities is affected by both environmental factors and host tree species. We investigated the influence of both of these factors by examining the total fungal communities in the rhizospheric soil of climax tree species that have similar ecological roles (Carpinus cordata, an ectomycorrhizal [ECM] tree, and Fraxinus rhynchophylla, an arbuscular mycorrhizal [AM] tree) in temperate forests with continental climates of Mt. Jeombong, South Korea. Fungal communities were assessed by Illumina-MiSeq sequencing the internal transcribed spacer (ITS) region of environmental DNA, and comparing their environmental factors (season and soil properties). We found that soil fungi of the two forest types differed in terms of community structure and ecological guild composition. The total fungal community composition changed significantly with seasons and soil properties in the F. rhynchophylla forest, but not in the C. cordata forest. However, potassium and carbon were significantly correlated with fungal diversity in both forests, and a positive correlation was found only between symbiotrophs of C. cordata and the carbon to nitrogen (C/N) ratio. Thus, the effects of environmental factors on soil fungal communities depended on the host trees, but some factors were common in both forests. Our results indicate that individual tree species should be considered when anticipating how the fungal communities will respond to environmental change.

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“…Las MICORRIZACIÓN Y FERTILIZACIÓN DE FRAXINUS plantas inoculadas con R. intraradices tuvieron un mejor crecimiento en comparación con las inoculadas con P. tinctorius y cuando ambos hongos micorrízicos se encuentran en coinoculación se presenta una sinergia que repercute positivamente en el crecimiento de F. uhdei. Estos resultados coinciden con lo reportado por Ambriz et al (2010) para la misma especie de hospedero, sin embargo, el ensayo desarrollado por este autor se realizó bajo condiciones controladas en cámara de crecimiento y en periodo menor de tiempo (12 semanas de duración).…”

Section: Discussionunclassified

“…Existen reportes que muestran el efecto benéfi co de la inoculación dual con Pisolithus tinctorius y Rhizophagus intraradices (Founoune et al, 2001;Misbahuzzaman y Newton, 2006), sin embargo, la información en torno al sistema Fraxinus uhdei-R. intraradices-P. tinctorius es casi inexistente, debido a que sólo se contaba con reportes de que las familias que forman asociación simbiótica tanto con hongos endomicorrízicos como con hongos ectomicorrízi-cos son: Caesalpiniaceae, Fagaceae, Juglandaceae, Myrtaceae, Salicaceae y Tiliaceae (Harley y Smith, 1983), por lo tanto este trabajo confi rma lo reportado por Ambriz et al (2010) en términos de la respuesta de la planta, pero en un sistema menos controlado. Desde luego no demuestra que la simbiosis simultánea ocurra de forma natural, pero sugiere que al menos una especie del género Fraxinus podría ser capaz de formar asociaciones con hongos ectomicorrízicos, lo que indica la necesidad de explorar esta posibilidad con individuos creciendo en condiciones naturales.…”

Section: Discussionunclassified

Inoculación con hongos micorrízicos y fertilización con urea de plantas de Fraxinus uhdei en acrisoles provenientes de sitios degradados

et al. 2015

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4Autor para la correspondencia: rlindig@cieco.unam.mx.Resumen: En suelos severamente degradados el establecimiento de plantas se difi culta por la ausencia de estructura, de microorganismos del suelo y en muchos casos por las bajas concentraciones de macronutrientes. En estas condiciones, el uso de interacciones con hongos micorrízicos, podría ser una estrategia efectiva para la revegetación y la restauración ecológica. Se realizó un experimento con sustrato obtenido de un sitio severamente erosionado (acrisoles con presencia de cárcavas) en un sistema de mesocosmos, con el objetivo de evaluar el desempeño de Fraxinus uhdei (Wenz.) Lingelsh (fresno) inoculado con los hongos micorrízicos Pisolithus tinctorius y Rhizophagus intraradices, solos o en interacción y en presencia/ausencia de fertilización nitrogenada. Se evaluó la altura, la cobertura de la copa, el diámetro a la altura de la base del tallo y el número de hojas al fi nalizar el experimento y se cosechó la biomasa. Se prepararon muestras para verifi car la micorrización. Los resultados indicaron que la fertilización no tuvo efecto signifi cativo sobre el desarrollo de las plantas pero, afectó negativamente la supervivencia (con urea 67 %, sin urea 90 %). Los mayores valores para las variables de crecimiento y la biomasa aérea siempre correspondieron a las plantas con inoculación dual, y los menores para las plantas control o las inoculadas con P. tinctorius (altura 23.3 cm contra 15.8 cm para P. tinctorius, diámetro a la altura de la base 0.74 cm contra 0.5 para P. tinctorius, el peso seco de las partes aéreas 2.0 g contra 1.0 g del control). Los resultados sugieren que en suelos que presentan condiciones severas de degradación la co-inoculación de plantas adaptadas a condiciones adversas puede ser una estrategia efi ciente de revegetación Palabras clave: co-inoculación, Pisolithus tinctorius, Rhizophagus intraradices, restauración ecológica, simbiosis. Abstract:In severely degraded soils, plant establishment is diffi cult because of lack of structure, a depleted community of microorganisms and in many sites low concentrations of macronutrients. Under these conditions, the use of interactions with mycorrhizal fungi could be an effective strategy for revegetation and ecological restoration. An experiment was established in mesocosms with soil gathered from a severely degraded site (acrisols with gully formations). The objective of the study was the evaluation of the performance of Fraxinus uhdei (Wenz.) Lingelsh (ash) inoculated with the mycorrhizal fungi Pisolithus tinctorius and Rhizophagus intraradices, each species by itself or in combination and also with presence or absence of nitrogen fertilization. Height, canopy cover, diameter at the base of the stem and number of leaves were evaluated at the end of the experiment, afterwards biomass was harvested. Samples were prepared to verify mycorrhization. Results showed that fertilization had no signifi cant effect on plant development but had a negative effect on survival (with urea 67 %, without urea 9...

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Fraxinus–Glomus–Pisolithus symbiosis: Plant growth and soil aggregation effects

Cited by 25 publications

References 43 publications

Dual‐mycorrhizal plants: their ecology and relevance

Dual‐mycorrhizal plants: their ecology and relevance

Influence of Season and Soil Properties on Fungal Communities of Neighboring Climax Forests (Carpinus cordata and Fraxinus rhynchophylla)

Inoculación con hongos micorrízicos y fertilización con urea de plantas de Fraxinus uhdei en acrisoles provenientes de sitios degradados

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