Arbuscular mycorrhizal fungal phylogeny-related interactions with a non-host

Wagg, Cameron; Antunes, Pedro M.; Peterson, R. L.

doi:10.1007/s13199-011-0107-5

Cited by 11 publications

(13 citation statements)

References 29 publications

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“…Large number of small vacuoles were observed as a response to the heavy colonization by G. mosseae ( Figure 1B), these vacuoles act as a viable propagules and storage structures (Plenchette and Strullu, 2003). The current results are closed to that reported by Wagg et al (2011) who found that Glomus intraradices produced large numbers of vesicles in pine (Pinus aphremphous) forest tree.…”

Section: Discussioncontrasting

confidence: 53%

Ultrastructural changes of tomatoes (Lycopersicon esculentum) root colonized by Glomus mosseae and Ralstonia solanacearum

Tahat¹

2012

Afr. J. Biotechnol.

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The colonization of plant root cell by mycorrhizal fungi is one of the mechanisms involved for the understanding of plant bio-protection against soil-borne pathogens. The aim of current study was to investigate and describe tomato (Lycopersicon esculentum) root ultra-structural modifications caused by Glomus mosseae and the bacterial wilt Ralstonia solanacearum. In scanning electron microscopy (SEM) observations, the root cells presented several arbuscules and mature spores of G. mosseae. In transmission electron microscopy (TEM) observations, many entry points on the cell wall were detected in addition to nucleus, cell organs and many mitochondria. The results evidenced that the presence of G. mosseae can change the root architecture dramatically. R. solanacearum was inhibited by the endophytic fungi. G. mosseae structure can help the plant to prevent the pathogen bacterial invasion totally due to root architecture system changes.

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Section: Discussioncontrasting

confidence: 53%

Ultrastructural changes of tomatoes (Lycopersicon esculentum) root colonized by Glomus mosseae and Ralstonia solanacearum

Tahat¹

2012

Afr. J. Biotechnol.

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“…However, greenhouse studies have shown that ectomycorrhizal plants can outcompete arbuscular mycorrhizal plants for a single resource pool (Pederson, Sylvia, & Shilling, ), and evidence from monodominant tropical forests suggests that ectomycorrhizal fungi may cause local competitive exclusion of arbuscular mycorrhizal plants (Corrales, Mangan, Turner, & Dalling, ; McGuire, ). Wagg, Antunes, and Peterson () showed that the presence of AM fungi may suppress growth of ectomycorrhizal plants. Thus, it is generally uncertain how contrasting mycorrhizal associations will influence plant–plant competition.…”

Section: Introductionmentioning

confidence: 99%

Timing of mutualist arrival has a greater effect on Pinus muricata seedling growth than interspecific competition

Peay

2018

Journal of Ecology

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Abstract1. Interactions with symbiotic microbes, such as mycorrhizal fungi, have the potential to greatly influence plant growth, but it is unclear whether field variation in symbiont availability is common and, if so, sufficient to influence interspecific plant competition.2. In a greenhouse experiment using natural field soils, I varied the timing of ectomycorrhizal inoculation and the presence of an arbuscular mycorrhizal plant competitor, and measured their effects on pine seedling growth.3. I found that ectomycorrhizal colonization was absent in some field soils, and that in soils without mycorrhizal inoculum, delayed arrival of ectomycorrhizal spores progressively reduced pine seedling growth and favoured growth of the competitor.Competition had significant negative effects on pine seedling growth, but the competition effect was much smaller than the effect of delayed mutualist arrival. 4.Synthesis. The importance of mycorrhizal spore arrival time on pine growth suggests that plants may experience mutualist limitation more frequently than previously expected, and the relative magnitude of seedling responses to mycorrhizal fungi and competing plants show that in some systems mutualism is likely of equal or greater importance compared with interspecific competition in affecting plant community assembly. K E Y W O R D Sclimate change, coexistence, dispersal, mycorrhizal fungi, phenology, plant-soil (below-ground) interactions, positive feedbacks, priority effects

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“…There are reports of AMF colonization in gymnosperms. Several authors [7, 11–15] have reported the presence of AMF hyphae and vesicles in the roots of Pseudotsuga menziesii, Tsuga, Abies and P. muricata . These reports indicate that although ectomycorrhizal symbioses are predominant in the structure and function of gymnosperm roots, AMF are present in the roots of these trees as well.…”

Section: Discussionmentioning

confidence: 99%

“…However, there are some reports of colonization by AMF in Pinaceae [7, 8, 9]. For example, the presence of AMF vesicles in the roots of Pseudotsuga menziesii has been reported [15]. Additionally, several authors have reported AMF vesicles and hyphae in the roots of five other species of Pinaceae in the genera Tsuga [11, 12, 13], Pinus [14, 7, 15] and Abies [7].…”

Section: Introductionmentioning

confidence: 99%

“…For example, the presence of AMF vesicles in the roots of Pseudotsuga menziesii has been reported [15]. Additionally, several authors have reported AMF vesicles and hyphae in the roots of five other species of Pinaceae in the genera Tsuga [11, 12, 13], Pinus [14, 7, 15] and Abies [7]. Although the presence of AMF has been documented in six gymnosperm species, its functional importance in terms of nutrient enhancement has not been shown in this group of plants, which includes numerous species of importance to forests.…”

Section: Introductionmentioning

confidence: 99%

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First report of enhanced contents of nine macro- and micronutrients in gymnosperms via arbuscular mycorrhizal fungi

Franco

Pérez-Moreno

et al. 2019

Preprint

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Traditionally, it is thought that arbuscular mycorrhizae establish a mutualist symbiosis only with the roots of angiosperm plants. In this mutualism, fungi receive carbon from the plants, and angiosperms receive nutrients through the external mycelium of the arbuscular mycorrhizal fungi (AMF). However, the enhanced contents of macro- and micronutrients in gymnosperm plants, and therefore the mutualistic relationship, with AMF has not been reported so far. The present work evaluated whether arbuscular mycorrhizae were able to establish and enhance 9 nutrient contents in the neotropical Pinaceae species Pinus greggii. The tree seedlings were inoculated with three consortia of AMF isolated from an agricultural site, a forest of Cupressus lusitanica and a forest of Pinus hartwegii. The effect of AMF inoculation on plant growth and nutrient enhancement, in addition to colonization, was evaluated. There was evidence of enhancement of plant growth and 9 macro- and micronutrients in plants inoculated with the three evaluated consortia. After 7 months, the translocation was greater for Mg, Mn and Zn in plants inoculated with the consortium of AMF from pine forest. The presence of hyphae, vesicles and arbuscules was detected in the roots of the Pinus greggii plants inoculated with the AMF consortia. In addition to these positive effects, colonization of 10 to 15% and 20 to 38% was observed depending on the AMF consortia after 2 and 7 months, respectively. The presence of arbuscules which is the translocation structure among involved symbionts was also recorded; and photographed for the first time. In the present work, we report for the first time that arbuscular mycorrhiza affects the mobilization of N, P, K, Ca, Mg, Fe, Mn, Zn, Cu and B in gymnosperms, indicating that this mycorrhizal symbiosis is more complex than previously believed.

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Arbuscular mycorrhizal fungal phylogeny-related interactions with a non-host

Cited by 11 publications

References 29 publications

Ultrastructural changes of tomatoes (Lycopersicon esculentum) root colonized by Glomus mosseae and Ralstonia solanacearum

Ultrastructural changes of tomatoes (Lycopersicon esculentum) root colonized by Glomus mosseae and Ralstonia solanacearum

Timing of mutualist arrival has a greater effect on Pinus muricata seedling growth than interspecific competition

First report of enhanced contents of nine macro- and micronutrients in gymnosperms via arbuscular mycorrhizal fungi

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