Ecological specificity of vesicular-arbuscular mycorrhizal associations

McGonigle, Terence P.; Fitter, A. H.

doi:10.1016/s0953-7562(09)81272-0

Cited by 155 publications

(72 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Co-occurrence of different AM fungal morphotypes has been reported several times. McGonigle & Fitter (1990) found coarse and fine endophytes in the same root system in a lowland grassland community and, in a similar habitat, Rosendahl, Rosendahl & Sochting (1990) found a similar morphological diversity. Tommerup (1988) has observed that a single 5-cm root fragment could carry up to eight different AM taxa.…”

Section: mentioning

confidence: 84%

The arbuscular mycorrhizal fungi of Hyacinthoides non‐scripta I. Diversity of fungal taxa

1998

View full text Add to dashboard Cite

The arbuscular mycorrhizas of bluebell (Hyacinthoides non-scripta (L.) Chouard ex Rothm.) involve several symbiotic fungi of the order Glomales. We have previously simplified the system by ignoring the taxonomic diversity of the fungi, but it is unlikely that all fungal species contribute in the same manner or to the same extent to the functioning of the symbiosis. To discover how many and which fungi take part in the bluebell mycorrhiza we sought to identify the range of arbuscular mycorrhizal (AM) fungi found in bluebell roots sampled during a complete growing season, September to June.Although the taxonomy of the Glomales by their spores is not yet fully understood, identification is, to a large extent, possible. Arbuscular mycorrhizal communities are usually characterized by their spores but, since spores can rarely be directly associated with individual plants or plant species, a more satisfactory approach would be to identify fungal symbionts where they interact with the host plant, in the roots. Unfortunately, the intraradical mycelia of the fungi are less easily distinguished than the spores and, as yet, classification is possible only to the family level.We have developed a method whereby different AM fungal taxa in the roots of bluebell can be distinguished by objective assessment. A large suite of morphological characteristics of the fungi in roots was recorded in samples taken at monthly intervals. Hierarchical cluster analysis of the resulting data separated six distinct AM fungal morphotypes (Scutellospora type, Acaulospora type, three Glomus types and fine endophytes) and a classification system created by which identification by eye was possible.We compared the fungi in roots with glomalean spores in soil from the root zone of the same bluebell plants. Two species occurred in most samples, Scutellospora dipurpurescens Morton & Koske (emend. Walker, 1993) and Acaulospora koskei Blaskowski. A further six occurred sporadically, five Acaulospora spp. and Glomus rubiforme Gerdemann & Trappe) Almeida & Schenck ( l Sclerocystis rubiformis). The presence of a single species of Scutellospora was consistent with a Scutellospora root morphotype which varied little. By contrast, the diversity of Acaulospora in the spore assemblage was reflected by variation within the Acaulospora morphotype. Glomus spores were very rarely found in field collections, yet Glomus morphotypes were found to be an important component of the bluebell mycorrhiza.Because some important species are not represented in spore assemblages in the field and those that are found can only be associated with vegetational groups, not individual plants or single species, glomalean spore populations provide only a partial account of the fungi which contribute to arbuscular mycorrhizas. Although it is still not possible to identify AM fungi in roots with the same precision as their spores, the method reported here permits assessment of diversity in the roots of individual plant species, which may be applied to the investigation of mycorrhi...

show abstract

Section: mentioning

confidence: 84%

The arbuscular mycorrhizal fungi of Hyacinthoides non‐scripta I. Diversity of fungal taxa

1998

View full text Add to dashboard Cite

show abstract

“…In addition, Incesu et al (2015) observed rates of higher root colonizations of Diospyros virginiana with R. irregularis and G. caledonium compared with other species of arbuscular mycorrhizal fungi (G. etunicatum, F. mosseae and G. clarium). Smith et al (2009) explained this by the capacity of a plant to develop a symbiotic association of preferential type with a species of arbuscular mycorrhizal fungi although it is colonized by various species of arbuscular mycorrhizal fungi, involving different rates of colonization on roots while McGonigle and Fitter (1990) explain these differences in effect by an ecological specificity.…”

Section: Discussionmentioning

confidence: 99%

Arbuscular Mycorrhizal Fertilization Of Corn (Zea mays L.) Cultivated on Ferrous Soil in Southern Benin

Aguegue¹,

Noumavo²,

Dagbenonbakin³

et al. 2017

JAS

View full text Add to dashboard Cite

The attainment of the millennium for development objectives require to improve the productivity of major cultures like maize (Zea mays L.). The present study aimed to assess the potential of Glomus cubens, Rhizophagus intraradices and Funneliformis mosseae to improve the productivity of corn cultivated on reddish ferrous soil in Southern Benin. A block of nine treatments with four repetition completely randomized was installed. Plant height and diameter and leaf area are growth parameters measured. Grain yield and endomycorrhizal infection were also evaluated. The best growths and grain yield (2.33 t/ha and 2.12 t/ha) were obtained respectively with the plants treated with R. intraradices + 50% of NPK and G. cubens + 50% of NPK compared to the control plants (1.48 t/ha). Moreover, the great frequencies of mycorhization (44% and 32.25% were observed respectively on the plants treated with G. cubens + 50% of NPK and R. intraradices + 50% NPK. These results show that the respective combination of these two Arbuscular Mycorrhizal Fungi with 50% NPK can increase of 50% the seeds yield of corn compared to the seeds yield obtained with the control plants. In addition, G. Cubens and R. intraradices are active in the colonization of maize roots. Use of R. Intraradices or G. cubens in combination with 50% of NPK help to increase the corn productivity and to reduce of half the chemical fertilizer commonly used by corn farmers at Southern Benin.

show abstract

“…As AMF, in general, are believed to colonize roots of a wide range of plants [28], the lack of functional need for mycorrhizal association in these particular edaphic conditions seems to be the reason for the absence (G. max and V. urticifolia) or low (Anchusa officinalis, Helianthus tuberosus, Linum usitatissimum) AM colonization of these species rather than the absence of AMF propagules in the soil. Nevertheless, there is increasing evidence for some degree of physical and functional specificity in the symbiosis [28,[47][48][49]. Therefore, if some AMF are required for particular plant species, the lack of compatibile fungal symbionts may be the reason for the lack or lower root colonization.…”

Section: Discussionmentioning

confidence: 99%

Arbuscular mycorrhizal and dark septate endophyte associations of medicinal plants

2011

View full text Add to dashboard Cite

The material was collected from the section of medicinal plants of the Jagiellonian University Botanical Garden in Kraków. The garden holds a collection of approximately 200 medicinal plant taxa (E. Nowotarska personal communication, 2010). The selection of plant species was done mainly on the basis of their presence in Polish Pharmacopoeia [23], the importance of species for herbal industry (based on the amount Abstract Arbuscular mycorrhizal fungi (AMF) and dark septate endophyte (DSE) associations were studied in 36 medicinal plant species from 33 genera and 17 families, collected from the Botanical Garden of the Jagiellonian University in Kraków. Arbuscular mycorrhiza (AM) was found in 34 species (94%); 26 were of the Arum-type, 4 -Paris and 4 taxa revealed intermediate morphology. The abundance of AMF hyphae in roots varied with particular species, ranging from 2.5% (Helianthus tuberosus) to 77.9% (Convallaria majalis). The mycelium of DSE was observed in 13 plant species (36%), however, the percentage of root colonization by these fungi was low. Spores of 7 AMF species (Glomeromycota) were isolated from trap cultures established from rhizosphere soils of the investigated plants: Archaeospora trappei (Archaeosporaceae), Glomus aureum, Glomus caledonium, Glomus claroideum, Glomus constrictum, Glomus mosseae, Glomus versiforme (Glomeraceae). Our results are the first detailed report of root endophyte associations of the plant species under study. Moreover, the mycorrhizal status of 14 plant species is reported for the first time.

show abstract

Ecological specificity of vesicular-arbuscular mycorrhizal associations

Cited by 155 publications

References 10 publications

The arbuscular mycorrhizal fungi of Hyacinthoides non‐scripta I. Diversity of fungal taxa

The arbuscular mycorrhizal fungi of Hyacinthoides non‐scripta I. Diversity of fungal taxa

Arbuscular Mycorrhizal Fertilization Of Corn (Zea mays L.) Cultivated on Ferrous Soil in Southern Benin

Arbuscular mycorrhizal and dark septate endophyte associations of medicinal plants

Contact Info

Product

Resources

About