The influence of arbuscular mycorrhizae and light on Wisconsin (USA) sand savanna understories 1

Landis, Frank C.; Gargas, Andrea; Givnish, Thomas J.

doi:10.1007/s00572-005-0365-2

Cited by 6 publications

(7 citation statements)

References 22 publications

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“…The duration of AMF microcosm/mesocosm studies with experimental plant communities ranges from a few months (e.g. Landis et al . 2005) to several years (e.g.…”

Section: Discussionmentioning

confidence: 99%

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Arbuscular mycorrhizal fungi and water table affect wetland plant community composition

2006

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Summary1 Most studies of the community-level effects of arbuscular mycorrhizal fungi (AMF) have been conducted in upland grassland plant communities where a majority of the plant species are colonized by AMF. Here, we examine the effects of AMF on plant community composition in experimental wetland plant communities, where the dominant plant species are non-mycorrhizal and subordinate plant species are colonized by AMF. We also assess how an important abiotic soil variable, depth to water table (soil saturation), might mediate the community-level effects of AMF. 2 In the low water table (un-saturated) treatment, above-ground plant biomass increased in the presence of AMF relative to the controls, while in the high water table treatment, biomass decreased with the presence of AMF. Contrary to predictions, plant diversity was unaffected by the presence of AMF in the low water table treatment, but significantly decreased in the presence of AMF in the high water table treatment. Changes in biomass and composition were driven by the interactions between the dominant non-mycorrhizal species Carex hystercina , and the remaining mycorrhizal plant species. 3 Our results indicate that AMF have the potential to influence plant community composition in calcareous fens and that these effects can be mediated by soil saturation. 4 This study has implications for understanding how established principles of aboveground/below-ground interactions from upland communities translate to wetland plant communities and for understanding how AMF function can be mediated by abiotic soil properties. Contrary to previous thought, AMF may be important drivers of plant community composition in wetland plant communities.

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“…The duration of AMF microcosm/mesocosm studies with experimental plant communities ranges from a few months (e.g. Landis et al . 2005) to several years (e.g.…”

Section: Discussionmentioning

confidence: 99%

“…1998), negative (Hartnett & Wilson 1999; O’Connor et al . 2002) and negligible (Landis et al . 2005) effects on plant community diversity.…”

Section: Introductionmentioning

confidence: 99%

Arbuscular mycorrhizal fungi and water table affect wetland plant community composition

2006

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“…van der Heijden et al, 1998;Landis et al, 2005;Wolfe et al, 2006). This raises the question whether these shifts could lead to changes in N-cycling processes (Fig.…”

Section: Plant Community Level Shiftsmentioning

confidence: 99%

Arbuscular mycorrhiza and soil nitrogen cycling

Veresoglou

Chen

Rillig

2012

Soil Biology and Biochemistry

297

153

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a b s t r a c tNitrogen is a major nutrient that frequently limits primary productivity in terrestrial ecosystems. Therefore, the physiological responses of plants to soil nitrogen (N) availability have been extensively investigated, and the study of the soil N-cycle has become an important component of ecosystem ecology and biogeochemistry. The bulk of the literature in these areas has, however, overlooked the fact that most plants form mycorrhizal associations, and that nutrient uptake is therefore mediated by mycorrhizal fungi. It is well established that ecto-and ericoid mycorrhizas influence N nutrition of plants, but roles of arbuscular mycorrhizas in N nutrition are less well established; perhaps even more importantly, current conceptual models ignore possible influences of arbuscular mycorrhizal (AM) fungi on N-cycling processes. We review evidence for the interaction between the AM symbiosis with microbes and processes involved in soil N-cycling. We show that to date investigations have rather poorly addressed such interactions and discuss possible reasons for this. We outline mechanisms that could potentially operate with regards to AM fungal e N-cycling interactions, discuss experimental designs aimed at studying these, and conclude by pointing out priorities for future research.

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“…Existen estudios que muestran una influencia significativa de los hongos micorrízicos arbusculares en la estructuración de comunidades vegetales en los ecosistemas terrestres (Landis et al, 2005). Particularmente en pastizales se ha encontrado que poaceas características de estos sistemas responden favorablemente a dicha asociación (Hartnett y Wilson, 2002).…”

Section: Hongos Micorrízicos Arbusculares En Pasturasunclassified

A new family, Pervetustaceae with a new genus, Pervetustus, and P. simplex sp. nov. (Paraglomerales), and a new genus, Innospora with I. majewskii comb. nov. (Paraglomeraceae) in the Glomeromycotina

Błaszkowski¹,

Kozłowska²,

Crossay³

et al. 2017

nova_hedwigia

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Arbuscular mycorrhizal fungi (AMF) are soil organisms that form mutualistic associations with most plants. The use of AMF is a strategy for the recovery of degraded soils, thus favoring the productivity of the crops. Native AMF can be selected from areas with particular soil and climatic conditions to be multiplied and used as inoculants, with better possibility of adaptation to degraded areas. The objective of this work was to characterize predominant native AMFs, from pastures of the northern zone of Peru. Soil samples from the areas of Carañayacu (A and B), Bosalao (A and B), Estero (A and B), Cercado (A and B), Chacrilla and Difuntillo in Cuñumbuque district in the San Martin region were collected. The soils were used as a substrate for the growth of two forage legumes including Centrosema macrocarpum and Leucaena leucocephala. A completely randomized design was used, with a factorial arrangement of 10 (zones) x 2 (legumes), with three repetitions. The results showed that the zones had greater influence in the percentage of mycorrhizal colonization in relation to the legumes, being the areas of Estero (72, 89%) and Difuntillo (70, 81%) those that had the highest percentage of colonization. The number of spores was influenced mainly by legumes, where Centrosema macrocarpum had the highest number with 710 spores / 10 g of soil from the Difuntillo area. Finally, 7 predominant native AMF morphotypes were characterized, being the morphotype of the Claroideoglomus genus the most predominant. AMF selected and multiplied under greenhouse conditions and reintroduced in areas of degraded pastures can increase their richness and, together with the installation of legumes, favor the recovery of degraded soils.

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The influence of arbuscular mycorrhizae and light on Wisconsin (USA) sand savanna understories 1

Cited by 6 publications

References 22 publications

Arbuscular mycorrhizal fungi and water table affect wetland plant community composition

Arbuscular mycorrhizal fungi and water table affect wetland plant community composition

Arbuscular mycorrhiza and soil nitrogen cycling

A new family, Pervetustaceae with a new genus, Pervetustus, and P. simplex sp. nov. (Paraglomerales), and a new genus, Innospora with I. majewskii comb. nov. (Paraglomeraceae) in the Glomeromycotina

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