About Us | Help Videos | Contact Us | Subscriptions

Members of ASA, CSSA, and SSSA: Due to system upgrades, your subscriptions in the digital library will be unavailable from May 15th to May 22nd. We apologize for any inconvenience this may cause, and thank you for your patience. If you have any questions, please call our membership department at 608-273-8080.


Institutional Subscribers: Institutional subscription access will not be interrupted for existing subscribers who have access via IP authentication, though new subscriptions or changes will not be available during the upgrade period. For questions, please email us at: queries@dl.sciencesocieties.org or call Danielle Lynch: 608-268-4976.



This article in AJ

  1. Vol. 59 No. 1, p. 21-24
    Received: June 17, 1966

Request Permissions


Occurrences of Trans-Aconitate in Range Forage Species1

  1. P. R. Stout,
  2. J. Brownell and
  3. R. G. Burau2



Young plants of 94 separate species collected largely from hypomagnesemia (grass tetany) prone rangelands during late fall, winter, and early spring, have been analyzed for total aconitate. Species containing 1% or more of their dry weight as aconitate have been classed as accumulators. Forty-seven percent of the grasses and 17% of the nongrass species fell in the high level category. The spread between individual species was very large (0.05 to 12.4%). Of the two aconitate stereoisomers, cis-aconitate was low in all species whereas trans-aconitate built up in the accumulators. Levels of trans-aconitate fell rapidly with the onset of warming spring weather and higher growth rates. Mowings of mixed plant species reflected the aconitate characteristics of accumulator species. Substantial differences in trans-aconitate levels may occur in roots, stems, and leaves of the same plant.

  Please view the pdf by using the Full Text (PDF) link under 'View' to the left.

Copyright © .