Full TGIF Record # 255457
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DOI:10.1007/s11104-014-2340-1
Web URL(s):https://link.springer.com/article/10.1007/s11104-014-2340-1
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Publication Type:
i
Refereed
Author(s):Hosseini, Fatemeh; Mosaddeghi, Mohammad R.; Hajabbasi, Mohammad A.; Sabzalian, Mohammad R.
Author Affiliation:Hosseini, Mosaddghi, Hajabbasi: Department of Soil Science; Sabzalian: Department of Agronomy and Plant Breeding, College of Agriculture, Isfahan University of Technology, Isfahan, Iran
Title:Aboveground fungal endophyte infection in tall fescue alters rhizosphere chemical, biological, and hydraulic properties in texture-dependent ways
Source:Plant and Soil. Vol. 388, No. 1,2, March 2015, p. 351-366.
# of Pages:16
Publishing Information:Dordrecht, The Netherlands: Kluwer Academic Publishers
Keywords:TIC Keywords: Biological properties of soil; Chemical properties of soil; Endophyte-infected plants; Epichloe; Festuca arundinacea; Hydraulic properties; Hydrophobic soils; Soil organic carbon; Soil texture; Symbiosis; Water repellency
Abstract/Contents:"Background and aims: Information regarding the influence of endophyte-tall fescue symbiosis on soil hydraulic properties is rare. The hypothesis in this study was that the presence of Epichlo√ę coenophialum in the tall fescue shoot may alter chemical and biological properties of rhizospheric soil and, as a consequence, the soil hydraulic properties and aggregate stability in texture-dependent ways. Methods: A greenhouse pot experiment was conducted to characterize the effects of endophyte-tall fescue symbiosis on water repellency and hydraulic properties of the rhizosphere in six soil types. Aggregate water/ethanol sorptivities and water repellency were determined using a tension micro-infiltrometer. Soil organic carbon, hot-water soluble carbohydrates, basal soil respiration and water-dispersible clay as an index of aggregate instability were also measured. Results: Endophytic symbiosis greatly enhanced soil organic carbon pools and hot-water soluble carbohydrates, especially for the medium- to fine-textured soils, and decreased the basal soil respiration. Changes in chemical and biological properties of the rhizosphere via endophyte infection and soil type altered the soil water repellency, hydraulic properties, and aggregate stability. Lower water sorptivity (due to hydrophobic coatings) and higher ethanol sorptivity (due to altered pore structure) were responsible for greater water repellency in the rhizosphere of endophyte-infected plants compared to endophyte-free ones. Conclusion: Greater sub-critical water repellency, organic carbon, and hot-water soluble carbohydrates induced by endophyte-tall fescue symbiosis could increase aggregate stability of the rhizosphere and facilitate ecosystem restoration in degraded arid lands."
Language:English
References:74
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Hosseini, F., M. R. Mosaddeghi, M. A. Hajabbasi, and M. R. Sabzalian. 2015. Aboveground fungal endophyte infection in tall fescue alters rhizosphere chemical, biological, and hydraulic properties in texture-dependent ways. Plant Soil. 388(1,2):p. 351-366.
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DOI: 10.1007/s11104-014-2340-1
Web URL(s):
https://link.springer.com/article/10.1007/s11104-014-2340-1
    Last checked: 10/06/2017
    Access conditions: Item is within a limited-access website
https://link.springer.com/content/pdf/10.1007%2Fs11104-014-2340-1.pdf
    Last checked: 10/06/2017
    Requires: PDF Reader
    Access conditions: Item is within a limited-access website
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