caa a22 4500 606218076 CHVBK 20210128101110.0 cr unu---uuuuu 210128e20150301xx s 000 0 eng 10.1007/s11104-014-2340-1 doi (NATIONALLICENCE)springer-10.1007/s11104-014-2340-1 Aboveground fungal endophyte infection in tall fescue alters rhizosphere chemical, biological, and hydraulic properties in texture-dependent ways [Elektronische Daten] [Fatemeh Hosseini, Mohammad Mosaddeghi, Mohammad Hajabbasi, Mohammad Sabzalian] 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 Epichloë 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. Springer International Publishing Switzerland, 2014 Endophyte nationallicence Soil organic carbon nationallicence Hot-water soluble carbohydrates nationallicence Rhizosphere nationallicence Ethanol sorptivity nationallicence Water sorptivity nationallicence Water repellency index nationallicence Hosseini Fatemeh Department of Soil Science, College of Agriculture, Isfahan University of Technology, 84156-83111, Isfahan, Iran aut Mosaddeghi Mohammad Department of Soil Science, College of Agriculture, Isfahan University of Technology, 84156-83111, Isfahan, Iran aut Hajabbasi Mohammad Department of Soil Science, College of Agriculture, Isfahan University of Technology, 84156-83111, Isfahan, Iran aut Sabzalian Mohammad Department of Agronomy and Plant Breeding, College of Agriculture, Isfahan University of Technology, 84156-83111, Isfahan, Iran aut Plant and Soil Springer International Publishing 388/1-2(2015-03-01), 351-366 0032-079X 388:1-2<351 2015 388 11104 https://doi.org/10.1007/s11104-014-2340-1 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s11104-014-2340-1 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Hosseini Fatemeh Department of Soil Science, College of Agriculture, Isfahan University of Technology, 84156-83111, Isfahan, Iran aut NATIONALLICENCE 700 1- Mosaddeghi Mohammad Department of Soil Science, College of Agriculture, Isfahan University of Technology, 84156-83111, Isfahan, Iran aut NATIONALLICENCE 700 1- Hajabbasi Mohammad Department of Soil Science, College of Agriculture, Isfahan University of Technology, 84156-83111, Isfahan, Iran aut NATIONALLICENCE 700 1- Sabzalian Mohammad Department of Agronomy and Plant Breeding, College of Agriculture, Isfahan University of Technology, 84156-83111, Isfahan, Iran aut NATIONALLICENCE 773 0- Plant and Soil Springer International Publishing 388/1-2(2015-03-01), 351-366 0032-079X 388:1-2<351 2015 388 11104