Full TGIF Record # 71060
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Web URL(s):http://www.tandfonline.com/doi/pdf/10.1080/01904169909365607
    Last checked: 10/13/2015
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Publication Type:
i
Report
Author(s):Richardson, Michael D.; Cabrera, Raul I.; Murphy, James A.; Zaurov, David E.
Author Affiliation:Richardson: Department of Horticulture, University of Arkansas, Fayetteville, AR; Cabrera, Murphy, and Zaurov: Department of Plant Science, Rutgers University, New Brunswick, NJ
Title:Nitrogen-form and endophyte-infection effects on growth, nitrogen uptake, and alkaloid content of Chewings fescue turfgrass
Source:Journal of Plant Nutrition. Vol. 22, No. 1, 1999, p. 67-79.
# of Pages:13
Publishing Information:New York: Marcel Dekker, Inc.
Keywords:TIC Keywords: Nitrogen; Nitrogen fertility; Festuca rubra subsp. commutata; Endophytes; Growth; Nitrogen uptake; Alkaloids; Peramine; Ergovaline; Shoot growth; Root growth; Biomass; Nitrogen efficiency
Cultivar Names:Jamestown II
Abstract/Contents:"Chewings fescue (Festuca rubra L. ssp. commutata Gaud) is naturally infected by an endophyte, however, little is known about the biology of this association and the effects on host fitness. A hydroponic study was conducted in the greenhouse to determine if endophyte and/or nitrogen (N) form influenced growth, N accumulation and alkaloid production in 'Jamestown II' Chewings fescue. Endophyte-infected and non-infected grasses were established in solution culture for 5 weeks using a 1/4 strength modified Hoagland solution, and then grown for 15d in similar solutions containing 50 mg L⁻1 of N as either NH₄-N, NO₃-N or a 1:1 mixture of NH₄-N and NO₃-N. The presence of the endophyte increased total biomass 54% in this grass, but growth was unaffected by N source. Nitrogen uptake was 58% higher in endophytic grasses, but no differences were observed in N use efficiency with respect to non-endophytic grasses. Nitrogen form affected both N uptake and N use efficiency, with significantly higher values for plants growing in nutrient solutions containing NH₄-N. Endophytic grasses contained two alkaloids, ergovaline and peramine. Grasses grown with NH₄-N had significantly higher ergovaline levels than grasses receiving NO₃-N whereas N-form has no effect on peramine. These results suggest that management factors, including N fertilization, might influence the production of specific alkaloids in endophyte-infected grasses and potentially enhance resistance against insect pests."
Language:English
References:31
Note:Graphs
Tables
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Richardson, M. D., R. I. Cabrera, J. A. Murphy, and D. E. Zaurov. 1999. Nitrogen-form and endophyte-infection effects on growth, nitrogen uptake, and alkaloid content of Chewings fescue turfgrass. J. Plant Nutr. 22(1):p. 67-79.
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Web URL(s):
http://www.tandfonline.com/doi/pdf/10.1080/01904169909365607
    Last checked: 10/13/2015
    Requires: PDF Reader
    Access conditions: Item is within a limited-access website
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