Fine endophytes (Glomus tenue) are related to Mucoromycotina, not Glomeromycota

2016 ◽  
Vol 213 (2) ◽  
pp. 481-486 ◽  
Author(s):  
Suzanne Orchard ◽  
Sally Hilton ◽  
Gary D. Bending ◽  
Ian A. Dickie ◽  
Rachel J. Standish ◽  
...  
Keyword(s):  
Glomus Tenue

scholarly journals Colonization by arbuscular mycorrhizal and fine endophytic fungi in herbaceous vegetation in the Canadian High Arctic

2004 ◽  
Vol 82 (11) ◽  
pp. 1547-1556 ◽  
Author(s):  
Pål Axel Olsson ◽  
Bente Eriksen ◽  
Anders Dahlberg
Keyword(s):  
Endophytic Fungi ◽  
Arbuscular Mycorrhizal ◽  
Am Fungi ◽  
Ellesmere Island ◽  
Inoculum Potential ◽  
Devon Island ◽  
Dark Septate Fungi ◽  
Banks Island ◽  
Glomus Tenue ◽  
Ellef Ringnes Island

The occurrence of arbuscular mycorrhizal (AM) fungi was surveyed along a latitudinal gradient in Arctic Canada including Banks Island (73°N), Devon Island (74°N), Ellesmere Island (76°N), and the Magnetic North Pole at Ellef Ringnes Island (78°N). At Banks Island, AM fungi were present and colonized at a high intensity in all specimens of Potentilla hookeriana Lehm. – Potentilla pulchella R.Br., Arnica angustifolia Vahl, and Erigeron uniflorus L. ssp. eriocephalus (Vahl ex Hornen.) Cronq. sampled. The soil collected under these plants showed a high inoculum potential when tested at greenhouse conditions using Plantago lanceolata L. as a bait plant. Occasional occurrence of AM fungi was recorded in Festuca hyperborea Holmen ex Frederiksen, Trisetum spicatum (L.) Richt., and Potentilla hookeriana – Potentilla pulchella at Devon Island. Despite the fact that potential AM plants are present, no AM was found at the two most northern sites, Ellesmere Island and Ellef Ringnes Island. There seems to be climatic or dispersal limitations to AM colonization at these northern sites. Fine endophytic fungi, formerly named Glomus tenue (Grenall) I.R. Hall, were recorded at all four sites, but most frequently at Banks Island. We thereby provide further evidence that fine endophytes are more frequent in harsh climatic conditions than AM fungi. There was a relatively high proportion of nonmycorrhizal plant species at all sites, and this proportion increased towards the north.Key words: arctic, arbuscular mycorrhiza, fine endophytes, dark septate fungi.

scholarly journals Arbuscular mycorrhiza of Deschampsia cespitosa (Poaceae) at different soil depths in highly metal-contaminated site in southern Poland

2013 ◽  
Vol 82 (4) ◽  
pp. 251-258 ◽  
Author(s):  
Ewa Gucwa-Przepióra ◽  
Janusz Błaszkowski ◽  
Renata Kurtyka ◽  
Łukasz Małkowski ◽  
Eugeniusz Małkowski
Keyword(s):  
Arbuscular Mycorrhiza ◽  
Root Colonization ◽  
Soil Depth ◽  
Mycorrhizal Colonization ◽  
Contaminated Site ◽  
Root Cortex ◽  
Deschampsia Cespitosa ◽  
Glomus Tenue ◽  
Mycorrhizal Roots ◽  
Fourth Species

This study presents root colonization of <em>Deschampsia cespitosa</em> growing in the immediate vicinity of a former Pb/Zn smelter by arbuscular mycorhizal fungi (AMF) and dark septated endophytes (DSE) at different soil depths. AMF spores and species distribution in soil profile were also assessed. Arbuscular mycorrhiza (AM) and DSE were found in <em>D. cespitosa</em> roots at all investigated soil levels. However, mycorrhizal colonization in topsoil was extremely low with sporadically occurring arbuscules. AM parameters: frequency of mycorrhization of root fragments (<em>F</em>%), intensity of root cortex colonization (<em>M</em>%), intensity of colonization within individual mycorrhizal roots (<em>m</em>%), and arbuscule abundance in the root system (<em>A</em>%) were markedly higher at 20–40, 40–60 cm soil levels and differed in a statistically significant manner from AM parameters from 0–10 and 10–20 cm layers. Mycorrhizal colonization was negatively correlated with bioavailable Cd, Pb and Zn concentrations. The number of AMF spores in topsoil was very low and increased with soil depth (20–40 and 40–60 cm). At the study area spores of three morphologically distinctive AMF species were found: <em>Archaeospora trappei</em>, <em>Funneliformis mosseae</em> and <em>Scutellospora dipurpurescens</em>. The fourth species <em>Glomus tenue</em> colonized roots of <em>D. cespitosa</em> and was observed in the root cortex at 20–40 and 40–60 soil depth, however, its spores were not found at the site.

Mycorrhizae in a California serpentine grassland community

1987 ◽  
Vol 65 (3) ◽  
pp. 484-487 ◽  
Author(s):  
Natalie A. Hopkins
Keyword(s):  
Arbuscular Mycorrhizae ◽  
Serpentine Soil ◽  
Glomus Fasciculatum ◽  
Annual Species ◽  
Grassland Community ◽  
Serpentine Grassland ◽  
Vesicular Arbuscular Mycorrhizae ◽  
Glomus Tenue ◽  
Vesicular Arbuscular ◽  
The Common

The grassland community on serpentine soil was found to have vesicular–arbuscular mycorrhizae. Twenty-seven species made up the herbaceous cover; 23 were annuals. Two annual species were from nonmycorrhizal families, but one had some colonization. Twenty-five species had colonization in over half the length of the roots. Annuals had especially heavy colonization, which frequently filled the cortex of the root. Of the herbaceous cover in the community 98% was mycorrhizal; 97% was colonized in over half the length of the roots; and 91% was colonized in over three-fourths the length of the roots. The common fungal symbionts were Glomus fasciculatum and Glomus tenue.

Field trials assessing the effect of inoculating agricultural soils with endomycorrhizal fungi

1984 ◽  
Vol 102 (3) ◽  
pp. 725-731 ◽  
Author(s):  
I. R. Hall
Keyword(s):  
Dry Matter ◽  
Field Experiments ◽  
Agricultural Soils ◽  
Field Trials ◽  
High Fertility ◽  
Infested Soil ◽  
Growth Responses ◽  
Vam Fungi ◽  
Glomus Tenue ◽  
Tussock Grassland

SummaryFour field experiments were established to gauge the effect of inoculating white clover with selected strains of vesicular-arbuscular mycorrhizal (VAM) fungi. The four sites chosen ranged in fertility from undeveloped, phosphorus-impoverished tussock grassland to high fertility alluvial flats. As far as practicable conventional agronomic practices were followed prior to and during sowing. The soils were otherwise untreated and contained the normal complement of indigenous VAM fungi. Infested soil pellets were used to introduce the fungi into the soils as this was considered more appropriate to pastoral farming than for example transplanting infected seedlings.Initially the introduced fungi tended to have little or no effect on dry-matter yields but by the end of the first season there were significant responses to Gigaspora margarita, Glomus mosseae, Glomus macrocarpum or a mixed inoculum of Glomus pallidum and Glomus tenue. In the second season, dry-matter yields were increased on the two tussock grassland sites by up to 760 kg D.M./ha (ca. 30%), 825 kg D.M./ha on the moderately fertile site (14%) and 640 kg D.M./ha (5%) on the high fertility site. The growth responses tended to decrease with time probably owing to the spread of fungi from the inoculated to the control plots though growth responses were still present at the end of the 3rd year on two of the sites. Within each experiment the application of up to 50 kg P/ha per year did not reduce the size of the responses to inoculation. This and herbage chemical analyses suggested that a more efficient use of phosphatic fertilizers may have been only part of the reason for the responses to inoculation.

The response of fine root endophyte (Glomus tenue) to waterlogging is dependent on host plant species and soil type

2016 ◽  
Vol 403 (1-2) ◽  
pp. 305-315 ◽  
Author(s):  
S. Orchard ◽  
R. J. Standish ◽  
D. Nicol ◽  
V. V. S. R. Gupta ◽  
M. H. Ryan
Keyword(s):  
Host Plant ◽  
Plant Species ◽  
Soil Type ◽  
Fine Root ◽  
Root Endophyte ◽  
Host Plant Species ◽  
Glomus Tenue
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