Organic acid production by Basidiomycetes. I. Screening of acid-producing strains.
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In the CaCO(3)-containing media, Schizophyllum commune, Merulius tremellosus, and Porodisculus pendulus were found to produce substantial amounts of L-malic acid as a main metabolic product, along with small quantities of oxalic and other acids in shake cultures.Abstract:
Sixty-seven strains belonging to 47 species of Basidiomycetes were examined for their acid-producing abilities in glucose media, in both the presence and absence of CaCO(3), in stationary and shake cultures. Some strains were found to produce large quantities of oxalic acid. The oxalic acid-producing strains could be separated into two groups. Strains of one group (mostly brown-rot fungi) were able to produce oxalic acid, regardless of whether CaCO(3) was present in the medium. Strains of the other group (mostly white-rot fungi) were characterized by their ability to produce oxalic acid only when CaCO(3) was added to the medium. With the latter group, shake-culturing was generally more effective than stationary culturing in respect to acid production. In the CaCO(3)-containing media, Schizophyllum commune, Merulius tremellosus, and Porodisculus pendulus were found to produce substantial amounts of L-malic acid as a main metabolic product, along with small quantities of oxalic and other acids in shake cultures. Especially, S. commune and M. tremellosus may be employed as malic acid-producing species.read more
Citations
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Organic acids in the rhizosphere: a critical review
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White-rot fungi and their enzymes for the treatment of industrial dye effluents.
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Degradation of cellulose by basidiomycetous fungi.
Petr Baldrian,Vendula Valášková +1 more
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Fungal production of citric and oxalic acid: importance in metal speciation, physiology and biogeochemical processes.
TL;DR: The physiology and chemistry of citric and oxalic acid production in fungi are discussed, the intimate association of these acids and processes with metal speciation, physiology and mobility, and their importance and involvement in key fungal-mediated processes, including lignocellulose degradation, plant pathogenesis and metal biogeochemistry.
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Oxalate production by fungi : its role in pathogenicity and ecology in the soil environment
TL;DR: The role of oxalic acid in pathogenesis is through acidification of host tissues and sequestration of calcium from host cell walls, thereby allowing polygalacturonase to effect degradation more rapidly in a synergistic response.
References
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Journal ArticleDOI
Separation of Organic Acids from Plant Tissues
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Oxalic acid decarboxylase, a new enzyme from the mycelium of wood destroying fungi
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The effect of citrate on the rotation of the molybdate complexes of malate, citramalate and isocitrate.
Hans Adolf Krebs,L. V. Eggleston +1 more
TL;DR: Citrate was found to change the rotation of the molybdate complexes of two substituted malic acids, viz. citramalic and isocitric acids.
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