Full TGIF Record # 72191
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Web URL(s):https://link.springer.com/article/10.1023/A%3A1026582207192
    Last checked: 09/27/2017
    Access conditions: Item is within a limited-access website
    Notes: Guide page
Publication Type:
i
Refereed
Author(s):Joner, Erik J.; van Aarle, Ingrid M.; Vosatka, Miroslav
Author Affiliation:Joner: Centre de Pedologie Biologique, Vandoeuvre-les-Nancy Cédex, France; van Aarle: Department of Microbial Ecology, Lund University, Lund, Sweden; and Vosatka: Institute of Botany, Academy of Sciences, Pruhonice, Czech Republic
Title:Phosphatase activity of extra-radical arbuscular mycorrhizal hyphae: A review
Section:Measurement of activity of AMF in plants and in soil
Other records with the "Measurement of activity of AMF in plants and in soil" Section
Source:Plant and Soil. Vol. 226, No. 2, 2000, p. 199-210.
# of Pages:12
Publishing Information:Dordrecht, Netherlands: Kluwer Academic Publishers
Keywords:TIC Keywords: Mycorrhizal fungi; Enzymes; Hyphae; Fungi; Mineralization; Nutrient potential; Mycelium; Phosphorus; Nutrition; Enzyme activity; Viability; Measurement; Techniques; Mineral metabolism; Histochemical methods
Abstract/Contents: "Phosphatase activity of arbuscular mycorrhizal (AM) fungi has attracted attention in three fairly distinct domains: intracellular enzymes with defined metabolic functions that have been studied in intraradical hyphae, histochemical staining of alkaline phosphatase as an indicator of fungal activity measured both intra- and extraradically, and extracellular activity related to mineralization of organic P (Po) compounds that may enhance mycorrhizal utilization of an important nutrient pool in soil. This review focuses on the latter subjects with emphasis on extraradical mycelium (ERM), while it draws on selected data from the vast material available concerning phosphatases of other organisms. We conclude that histochemical staining of alkaline phosphatase is a sensitive and suitable method for monitoring the effect of adverse conditions encountered by ERM both as a symbiotically functional entity in soil, and in vitro without modifying interference of soil or other solid substrates. Futhermore, the quantitative importance of extracellular enzymes for P nutrition of AM plants is estimated to be insignificant. This is concluded from the low quantitative contribution extracellular hyphae of AM fungi give to the total phosphatase activity in soil, and from estimations of which processes that may be rate limiting in organic P mineralization. Maximum values for the former is in the order of a few percent. As for the latter, solubilization of Po seems to be far more important than Po hydrolysis for utilization of Po by AM fungi and plants, as both endogenous soil phosphatase activity and phosphatases supports the view that extracellular phosphatases of roots and micro-organisms are to a large extent released incidentally into soil, and that the source has limited benefit from its activity."
Language:English
References:110
Note:Tables
Graphs
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Joner, E. J., I. M. van Aarle, and M. Vosatka. 2000. Phosphatase activity of extra-radical arbuscular mycorrhizal hyphae: A review. Plant Soil. 226(2):p. 199-210.
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Web URL(s):
https://link.springer.com/article/10.1023/A%3A1026582207192
    Last checked: 09/27/2017
    Access conditions: Item is within a limited-access website
    Notes: Guide page
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