The best for the guest: high Andean nurse cushions of Azorella madreporica enhance arbuscular mycorrhizal status in associated plant species

Mycorrhiza ◽  
2011 ◽  
Vol 21 (7) ◽  
pp. 613-622 ◽  
Author(s):  
M. Angélica Casanova-Katny ◽  
Gustavo Adolfo Torres-Mellado ◽  
Goetz Palfner ◽  
Lohengrin A. Cavieres
2000 ◽  
Vol 146 (2) ◽  
pp. 343-352 ◽  
Author(s):  
H. VIERHEILIG ◽  
R. BENNETT ◽  
G. KIDDLE ◽  
M. KALDORF ◽  
J. LUDWIG-MÜLLER

1988 ◽  
Vol 66 (10) ◽  
pp. 1924-1928 ◽  
Author(s):  
Shannon M. Berch ◽  
Sharmin Gamiet ◽  
Elisabeth Deom

During the summer of 1986, plants were collected from University of British Columbia Research Farm at Oyster River, Vancouver Island, and their mycorrhizal status was determined. Of the 60 plant species examined, 44 were always vesicular–arbuscular mycorrhizal, 13 were always nonmycorrhizal, and three varied. Nonmycorrhizal plants were found in species belonging to the following families: Araceae, Caryophyllaceae, Compositae, Cruciferae, Gramineae, Onagraceae, Polygonaceae, and Portulacaceae. The mycorrhizal status of 15 plant species is reported here for the first time. Of these, the nonmycorrhizal species included Lysichitum americanum (Araceae), Stellaria simcoei, Stellaria calycantha (Caryophyllaceae), and Epilobium minutum (Onagraceae), and the mycorrhizal species included Adenocaulon bicolor, Eriophyllum lanatum var. achillaeoides, Grindelia squarrosa var. serrulata (Compositae), Poa gracillima (Gramineae), Brodiaea coronaria, Disporum hookerii (Lilaceae), Polypodium glycyrrhiza (Polypodiaceae), Ranunculus uncinatus (Ranunculaceae), Rosa nutkana var. nutkana (Rosaceae), Collinsia parviflora (Scrophulariaceae), and Viola glabella (Violaceae).


2011 ◽  
Vol 99 (6) ◽  
pp. 1339-1349 ◽  
Author(s):  
Stavros D. Veresoglou ◽  
Robin Sen ◽  
Andreas P. Mamolos ◽  
Demetrios S. Veresoglou

2021 ◽  
Vol 4 (1) ◽  
Author(s):  
Anurag Chaturvedi ◽  
Joaquim Cruz Corella ◽  
Chanz Robbins ◽  
Anita Loha ◽  
Laure Menin ◽  
...  

AbstractEarly-diverging fungi (EDF) are distinct from Dikarya and other eukaryotes, exhibiting high N6-methyldeoxyadenine (6mA) contents, rather than 5-methylcytosine (5mC). As plants transitioned to land the EDF sub-phylum, arbuscular mycorrhizal fungi (AMF; Glomeromycotina) evolved a symbiotic lifestyle with 80% of plant species worldwide. Here we show that these fungi exhibit 5mC and 6mA methylation characteristics that jointly set them apart from other fungi. The model AMF, R. irregularis, evolved very high levels of 5mC and greatly reduced levels of 6mA. However, unlike the Dikarya, 6mA in AMF occurs at symmetrical ApT motifs in genes and is associated with their transcription. 6mA is heterogeneously distributed among nuclei in these coenocytic fungi suggesting functional differences among nuclei. While far fewer genes are regulated by 6mA in the AMF genome than in EDF, most strikingly, 6mA methylation has been specifically retained in genes implicated in components of phosphate regulation; the quintessential hallmark defining this globally important symbiosis.


Mycorrhiza ◽  
2009 ◽  
Vol 19 (3) ◽  
pp. 205-214 ◽  
Author(s):  
Sebastian Fracchia ◽  
Adriana Aranda ◽  
Analia Gopar ◽  
Vanesa Silvani ◽  
Laura Fernandez ◽  
...  

2020 ◽  
Vol 7 (2) ◽  
pp. 30-38
Author(s):  
Santhoshkumar S ◽  
Nagarajan N ◽  
Sree Priya S

In the present study to analyzed that the arbuscular mycorrhizal fungal spores in root colonization and spore population in rhizosphere soils samples in various medicinal at Paithal hills,Western Ghats of Kannur district, Kerala, India. Root and rhizosphere soil samples were collected during the month of August, 2018-March, 2019 from the surface to 30 cm depth as well as pH were also recorded. Totally 30 plant species belonging to 19 families were collected and identified. The present result showed arbuscular mycorrhizal spore population in the rhizosphere soil and root colonization of all the plant species. A total of 19 AM fungal spores were recovered from the rhizosphere soil samples in this study region. The Glomus was dominant had seen in rhizosphere soil samples in all the medicinal plant species. The maximum spore population was found in the rhizosphere soil samples of Mimosa pudica (590/100g of soil) which belongs to the family Mimosaceae and the lowest spore population was observed in the Terminalia bellirica 135/100g of soil) belongs to Combretaceae family. The highest  78 % AM fungal colonization was found in roots of Euphorbia hirta belongs to the family Euphorbiaceae. While the lowest 11 % AM fungal colonization was found in the root of Sida acuta belongs to the family Malvaceae.


2017 ◽  
Vol 47 (4) ◽  
pp. 500-505 ◽  
Author(s):  
Djamila Adjoud-Sadadou ◽  
Rosa Halli-Hargas

The dual symbiotic habit of the genus Eucalyptus is well documented: while arbuscular mycorrhizae are always dominant in seedlings and young trees, they are replaced by ectomycorrhizae in older trees. Here, the mycorrhizal status of eucalypts of different ages was assessed over the year in three plantations in the humid Mediterranean climate zone of Algeria (using morphological, anatomical, and histological criteria) and quantified in the dry and wet seasons over three years (using the grid-line intersect method of Giovannetti and Mosse (1980, New Phytol. 84: 489–500, doi: 10.1111/j.1469-8137.1980.tb04556.x ) on randomized fine root segments). Unexpectedly, the results revealed the persistence of arbuscular mycorrhizae in old trees and their dominance over ectomycorrhizae during the dry season, while the opposite pattern was observed in the wet season. Composite mycorrhizae displaying intimately mixed arbuscular mycorrhizae and ectomycorrhizae anatomical structures also occurred and were more frequent during the dry season. Eucalypts were clearly able to form a wide diversity of symbiotic associations with arbuscular mycorrhizal and ectomycorrhizal fungi locally associated with native trees, shrubs, and herbaceous plants. Therefore, the mycorrhizal status should not be a limiting factor to the silviculture of eucalypts in this area of Algeria because the dual symbiotic habit provides complementary benefits in a poor soil and in an alien environment.


2001 ◽  
Vol 79 (10) ◽  
pp. 1161-1166 ◽  
Author(s):  
John N Klironomos ◽  
Miranda M Hart ◽  
Jane E Gurney ◽  
Peter Moutoglis

Arbuscular mycorrhizal fungal communities in northern temperate ecosystems must function during extremes in environmental conditions. However, it is not known if arbuscular mycorrhizal fungi that co-exist in soil communities have similar tolerances to stresses such as drought and freezing. The phenology of arbuscular mycorrhizal fungi was determined over one year in a community in southern Ontario, Canada. Five fungal species from the same community were then used to inoculate five plant species, in all possible combinations, and were subjected to either a freezing treatment or a drought treatment after which new seedlings were transplanted into the treated pots. The percent colonization of roots of each plant species was measured as the difference in mean colonization from the control. Freezing reduced percent colonization in almost every case, whereas drought resulted in both increased and decreased percent colonization. Fungal species responded differently to the treatments, and there was a pronounced plant × fungus effect. These results support the hypothesis that distinct functional groups of arbuscular mycorrhizal fungi exist, and these may determine plant community structure.Key words: arbuscular mycorrhizal fungi, freezing, drying, functional diversity.


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