Construction of genomic phage libraries of the arbuscular mycorrhizal fungi Glomus mosseae and Scutellospora castanea and isolation of ribosomal RNA genes

Mycorrhiza ◽  
1996 ◽  
Vol 6 (3) ◽  
pp. 167-173 ◽  
Author(s):  
P. Franken ◽  
Vivienne Gianinazzi-Pearson
Keyword(s):  
Arbuscular Mycorrhizal Fungi ◽  
Ribosomal Rna ◽  
Mycorrhizal Fungi ◽  
Glomus Mosseae ◽  
Arbuscular Mycorrhizal ◽  
Ribosomal Rna Genes ◽  
Phage Libraries ◽  
Rna Genes

scholarly journals   Bioprotection against Gaeumannomyces graminis in barley a comparison between arbuscular mycorrhizal fungi

2012 ◽  
Vol 58 (No. 6) ◽  
pp. 256-261 ◽  
Author(s):  
V. Castellanos-Morales ◽  
R. Cárdenas-Navarro ◽  
J.M. García-Garrido ◽  
A. Illana ◽  
J.A. Ocampo ◽  
...  
Keyword(s):  
Arbuscular Mycorrhizal Fungi ◽  
Mycorrhizal Fungi ◽  
Fungal Pathogens ◽  
Glomus Mosseae ◽  
Glomus Intraradices ◽  
Arbuscular Mycorrhizal ◽  
Gaeumannomyces Graminis ◽  
Split Root System ◽  
Cereal Plants ◽  
Gaeumannomyces Graminis Var Tritici

Gaeumannomyces graminis var. tritici causes take-all disease, the most important root disease of cereal plants. Cereal plants are able to form a symbiotic association with soil-borne arbuscular mycorrhizal fungi which can provide bioprotection against soil-borne fungal pathogens. However, the bioprotective effect of arbuscular mycorrhizal fungi against soil-borne fungal pathogens might vary. In the present study we tested the systemic bioprotective effect of the arbuscular mycorrhizal fungi Glomus mosseae, Glomus intraradices and Gigaspora rosea against the soil-borne fungal pathogen Gaeumannomyces graminis var. tritici in a barley split-root system. Glomus intraradices, Glomus mosseae and Gigaspora rosea colonized the split-root system of barley plants at different levels; however, all arbuscular mycorrhizal fungi clearly reduced the level of root lesions due to the pathogen Gaeumannomyces graminis. Our data indicate that some arbuscular mycorrhizal fungi need high root colonization rates to protect plants against fungal pathogens, whereas others act already at low root colonization rates.    

Influence of Arbuscular Mycorrhizal Fungi on Sucrose Metabolism of Citrus Seedlings

2012 ◽  
Vol 610-613 ◽  
pp. 3406-3409
Author(s):  
Yan Li ◽  
Ying Ning Zou ◽  
Yong Ming Huang ◽  
Qiang Sheng Wu
Keyword(s):  
Arbuscular Mycorrhizal Fungi ◽  
Mycorrhizal Fungi ◽  
Glomus Mosseae ◽  
Arbuscular Mycorrhizal ◽  
Metabolizing Enzymes ◽  
Sucrose Metabolizing Enzymes ◽  
Citrus Junos ◽  
Mycorrhizal Inoculation ◽  
Metabolizing Enzyme ◽  
Mycorrhizal Development

The effects of arbuscular mycorrhizal fungi (AMF, Glomus mosseae) on plant dry weights, sucrose and glucose concentrations, and sucrose-metabolizing enzyme (AI-acid invertase; NI-neutral invertase; SS-sucrose synthase) activities were examined in young citrus (Citrus junos Sieb.ex Tanaka) seedlings. After three months of mycorrhizal inoculation, root mycorrhizal colonization was 55.32%. Inoculation with G. mosseae significantly increased shoot and root dry weights and sucrose and glucose concentrations in leaf and root, compared with non-AMF seedlings. AMF colonization was significantly positively correlated with glucose and sucrose concentrations of leaf and root, suggesting that AM symbosis alters carbohydrate concentrations to sustain symbiosis development. On the other hand, AMF colonization significantly increased root AI and leaf SS activities, but decreased leaf AI and NI activities and root NI and SS activities. Based on the correlation analysis, it assumes that AMF regulated the carbohydrate concentrations for the plant growth and mycorrhizal development through altering activities of the sucrose-metabolizing enzymes.

Interactions between Trichoderma pseudokoningii strains and the arbuscular mycorrhizal fungi Glomus mosseae and Gigaspora rosea

Mycorrhiza ◽  
2004 ◽  
Vol 14 (2) ◽  
pp. 79-84 ◽  
Author(s):  
Alicia Martinez ◽  
Mariana Obertello ◽  
Alejandro Pardo ◽  
Juan A. Ocampo ◽  
Alicia Godeas
Keyword(s):  
Arbuscular Mycorrhizal Fungi ◽  
Mycorrhizal Fungi ◽  
Glomus Mosseae ◽  
Arbuscular Mycorrhizal ◽  
Gigaspora Rosea ◽  
Trichoderma Pseudokoningii
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