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  • 1
    Electronic Resource
    Electronic Resource
    Presence of specific polypeptides in onion roots colonized by Glomus mosseae (1993)
    Springer
    Mycorrhiza 2 (1993), S. 175-177 
    Details
    ISSN: 1432-1890
    Keywords: Allium cepa ; Gene expression ; Glomus mosseae ; VA mycorrhizas ; Specific polypeptides
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract We studied changes in gene expression during the establishment of vesicular-arbuscular (VA) mycorrhizal symbiosis. Polypeptides were obtained by in vitro translation of total root RNA extracted from VA-colonized and noncolonized root-tissue of onion (Allium cepa L. cv. Babosa), and resolved by two-dimensional polyacrylamide gel electrophoresis. VA mycorrhization led to a specific appearance of eight new polypeptides, and the disappearance of seven polypeptides in VA-colonized root. Our findings indicate that gene expression is altered in response to morphological and physiological changes resulting from the establishment of VA mycorrhizas.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00210587
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  • 2
    Electronic Resource
    Electronic Resource
    Relationship between the concentration of sugars in the roots and VA mycorrhizal infection (1985)
    Springer
    Plant and soil 86 (1985), S. 95-100 
    Details
    ISSN: 1573-5036
    Keywords: Glomus mosseae ; Non-host plants ; Root sugar concentration ; VA mycorrhizas
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary The VA-infected wheat varieties showed an increase of total (Lozano var.) and reducing (Lozano and Pane vars.) sugars in their root extracts. However, no clear relationship between sugar concentration in the root and VA mycorrhizal infection level could be established. In addition, the VA mycorrhizal hosts sorghum, alfalfa, sunflower and maize, and non-host radish and cabbage plants were tested for sugar content in their root extracts after fifteen days of growth. Sugars present in the root extracts of these plants did not seem to be a decisive factor in plant susceptibility to VA infection.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02185029
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  • 3
    Electronic Resource
    Electronic Resource
    Effect of cyanazine herbicide on VA mycorrhizal infection and growth ofPisum sativum (1988)
    Springer
    Plant and soil 107 (1988), S. 207-210 
    Details
    ISSN: 1573-5036
    Keywords: Cyanazyne herbicide ; Pisum sativum ; VA mycorrhizas
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract The effect of the photosynthetic inhibitor herbicide Cyanazine on VA mycorrhiza and on pea plant growth was examined. Plant growth was decreased by Cyanazine applied at the rate of 0.05 and 0.1 mg ml−1. Cyanazine only decreased VA mycorrhiza of pea roots when applied at high doses (0.1 mg ml−1). However, no direct effect of the herbicide on VA endophyte development was found. These results suggest that the inhibitory effect of Cyanazine on VA mycorrhiza took place via influence on plant metabolism and growth. VA mycorrhizas alleviated the deleterious effect of the herbicide on plant growth when applied at moderate (0.05 mg ml−1) but not at high (0.1 mg ml−1) doses.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02370548
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  • 4
    Electronic Resource
    Electronic Resource
    Effect of root exudation on VA mycorrhizal infection at early stages of plant growth (1984)
    Springer
    Plant and soil 82 (1984), S. 133-138 
    Details
    ISSN: 1573-5036
    Keywords: Glomus mosseae ; Root exduation ; VA mycorrhizas
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary No relationship between the degree of VA mycorrhizal infection and total sugar content in root exudates of several plant species of different degree of mycorrhizal susceptibility were observed during the early stages of plant growth. Even more, the non host plants tested showed higher sugar exudation ability, when expressed as the amount exuded per g of root, at these early periods of their growth, than plants susceptible to mycorrhizal infection. Root exudates from host and non host plants influenced similarly the percentage of spore germination and number of secondary spores under controlled conditions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02220777
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  • 5
    Electronic Resource
    Electronic Resource
    Absence of VA colonization in Oxalis pes-caprae inoculated with Glomus mosseae (1992)
    Springer
    Plant and soil 145 (1992), S. 298-300 
    Details
    ISSN: 1573-5036
    Keywords: Glomus mosseae ; Medicago sativa ; non-host plants ; Oxalis pes-caprae ; VA mycorrhizas
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Although members of the Oxalidaceae family have been described as host plants of vesicular-arbuscular mycorrhizal fungi, Oxalis pes-caprae did not become colonized by Glomus mosseae. Extracts of Ox. pes-caprae root inhibited the germination of G. mosseae spores. However, the presence of G. mosseae in the rhizosphere of Ox. pes-caprae produced browning of the roots, which was interpreted as a hypersensitivity response of the plant to the presence of VA fungus.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00010359
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