Seed size influences arbuscular mycorrhizal symbiosis across leguminous host-plant species at the seedling stage

Symbiosis ◽  
2009 ◽  
Vol 49 (2) ◽  
pp. 111-116 ◽  
Author(s):  
Liang Jin ◽  
Shuhe Wang ◽  
Xiaojuan Wang ◽  
Yuying Shen
Keyword(s):  
Host Plant ◽  
Plant Species ◽  
Seed Size ◽  
Arbuscular Mycorrhizal ◽  
Seedling Stage ◽  
Arbuscular Mycorrhizal Symbiosis ◽  
Mycorrhizal Symbiosis ◽  
Host Plant Species ◽  
Leguminous Host

scholarly journals Arbuscular mycorrhizal symbiosis increases relative apoplastic water flow in roots of the host plant under both well-watered and drought stress conditions

2012 ◽  
Vol 109 (5) ◽  
pp. 1009-1017 ◽  
Author(s):  
Gloria Bárzana ◽  
Ricardo Aroca ◽  
José Antonio Paz ◽  
François Chaumont ◽  
Mari Carmen Martinez-Ballesta ◽  
...  
Keyword(s):  
Drought Stress ◽  
Host Plant ◽  
Water Flow ◽  
Arbuscular Mycorrhizal ◽  
Stress Conditions ◽  
Arbuscular Mycorrhizal Symbiosis ◽  
Mycorrhizal Symbiosis

Mycorrhizal inoculum and performance of nonmycorrhizal Carex bigelowii and mycorrhizal Trientalis europaea

2004 ◽  
Vol 82 (4) ◽  
pp. 443-449 ◽  
Author(s):  
Anna Liisa Ruotsalainen ◽  
Sami Aikio
Keyword(s):  
Host Plant ◽  
Plant Species ◽  
Arbuscular Mycorrhizal ◽  
Plant Performance ◽  
Shoot Biomass ◽  
Mycorrhizal Symbiosis ◽  
Shoot Ratio ◽  
Root Shoot Ratio ◽  
Negative Effect ◽  
Trientalis Europaea

We studied the competition between mycorrhiza-forming Trientalis europaea L. and nonmycorrhizal Carex bigelowii Torrey ex Schweinitz in a climate chamber experiment. The plants were grown either singly or together with a conspecific or heterospecific individual, with arbuscular mycorrhizal inoculum present or absent. Inoculated T. euro paea formed abundant arbuscular mycorrhizal structures, but the mycorrhizae did not affect its biomass or the whole plant's relative growth rate (RGR). Carex bigelowii did not form mycorrhizae, but its shoot biomass and RGR were lower in the inoculated pots. The presence of a conspecific or heterospecific plant had no effect on the shoot biomasses or RGR of either plant species. Mycorrhizal inoculation increased the root/shoot ratio of C. bigelowii in all competition treatments. The presence of C. bigelowii decreased the root/shoot ratio of T. europaea in both mycorrhizal and nonmy corrhizal state. Mycorrhizal inoculum thus had a direct negative effect on the growth of a nonmycorrhizal plant. The result suggests that although mycorrhizae may not always directly affect the performance of the host plant, they may possibly increase the host plant performance in relation to nonmycorrhizal neighbours. Mycorrhizal inoculum and mycorrhizal symbiosis may increase asymmetry of interspecific competition, which may facilitate the coexistence of plant species in cases when a larger individual is more negatively affected.Key words: arbuscular mycorrhiza, competitive asymmetry, micropropagation.

scholarly journals Cooccurring Gentiana verna and Gentiana acaulis and Their Neighboring Plants in Two Swiss Upper Montane Meadows Harbor Distinct Arbuscular Mycorrhizal Fungal Communities

2007 ◽  
Vol 73 (17) ◽  
pp. 5426-5434 ◽  
Author(s):  
Zuzana Sýkorová ◽  
Andres Wiemken ◽  
Dirk Redecker
Keyword(s):  
Host Plant ◽  
Community Composition ◽  
Plant Species ◽  
Mycorrhizal Fungi ◽  
Host Preference ◽  
Arbuscular Mycorrhizal ◽  
Major Influence ◽  
Host Plant Species ◽  
Amf Communities ◽  
The Impact

ABSTRACT The community composition of arbuscular mycorrhizal fungi (AMF) was analyzed in roots of Gentiana verna, Gentiana acaulis, and accompanying plant species from two species-rich Swiss alpine meadows located in the same area. The aim of the study was to elucidate the impact of host preference or host specificity on the AMF community in the roots. The roots were analyzed by nested PCR, restriction fragment length polymorphism screening, and sequencing of ribosomal DNA small-subunit and internal transcribed spacer regions. The AMF sequences were analyzed phylogenetically and used to define monophyletic sequence types. The AMF community composition was strongly influenced by the host plant species, but compositions did not significantly differ between the two sites. Detailed analyses of the two cooccurring gentian species G. verna and G. acaulis, as well as of neighboring Trifolium spp., revealed that their AMF communities differed significantly. All three host plant taxa harbored AMF communities comprising multiple phylotypes from different fungal lineages. A frequent fungal phylotype from Glomus group B was almost exclusively found in Trifolium spp., suggesting some degree of host preference for this fungus in this habitat. In conclusion, the results indicate that within a relatively small area with similar soil and climatic conditions, the host plant species can have a major influence on the AMF communities within the roots. No evidence was found for a narrowing of the mycosymbiont spectrum in the two green gentians, in contrast to previous findings with their achlorophyllous relatives.

scholarly journals Evolutionary asymmetry in the arbuscular mycorrhizal symbiosis: conservatism in fungal morphology does not predict host plant growth

2017 ◽  
Vol 214 (3) ◽  
pp. 1330-1337 ◽  
Author(s):  
Alexander M. Koch ◽  
Pedro M. Antunes ◽  
Hafiz Maherali ◽  
Miranda M. Hart ◽  
John N. Klironomos
Keyword(s):  
Plant Growth ◽  
Host Plant ◽  
Arbuscular Mycorrhizal ◽  
Arbuscular Mycorrhizal Symbiosis ◽  
Mycorrhizal Symbiosis ◽  
Fungal Morphology
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