Feeding on Different Host Plants Alters the Natural Abundances of [greek small letter delta] ¹³C and [greek small letter delta] ¹[sup5]N in Longidoridae (Nemata)
Keywords:
[greek small letter delta] ¹³C, [greek small letter delta] ¹[sup5]N, carbon isotope, feeding behavior, longidoridae, longidorus, metabolism, natural abundance, nematode, nitrogen isotope, paralongidorus, stable isotopes, xiphinemaAbstract
Natural abundances of the stable isotope pairs ¹³C/¹²C ([greek small letter delta] ¹³C) and ¹[sup5]N/¹[sup4]N ([greek small letter delta] ¹[sup5]N) have been used previously to study food sources and trophic relationships in soil invertebrates. In this study, [greek small letter delta] ¹³C and [greek small letter delta] ¹[sup5]N were measured in five species of Longidoridae to investigate the effect of transferring nematodes from one plant host to another. Longidorus elongatus, Paralongidorus maximus, Xiphinema diversicaudatum, X. index, and X. vuittenezi were cultured initially on Lolium perenne, Petunia hybrida, Rubus ideaus, Ficus carica, and Rubus ideaus, respectively, and subsequently transferred to 4-week-old P. hybrida seedlings. After feeding on P. hybrida for 28 days, whole body [greek small letter delta] ¹³C and [greek small letter delta] ¹[sup5]N values of the three Xiphinema species were depleted (P = 0.001) and enriched (P = 0.001), respectively, compared to nematode populations that had fed solely on the original plant hosts. Similar changes in L. elongatus and P. maximus whole body [greek small letter delta] ¹³C and [greek small letter delta] ¹[sup5]N were not detected. Changes in whole body [greek small letter delta] ¹³C are considered to be indicative of the new plant host (P. hybrida), whereas differences in whole body [greek small letter delta] ¹[sup5]N are probably related to the different feeding strategies used by the longidorid nematodes in this study.Downloads
Published
Issue
Section
License
Copyright and Permissions
All material published by the Society of Nematologists (SON), except for papers prepared by United States and Canadian government employees, is copyrighted and protected under the U.S. copyright law. Under the Copyright Act of 1976, the term of copyright for materials registered by an organization is 75 years from the date first published. Before publishing any manuscript, SON requires that authors transfer full and complete ownership of any copyright to SON by signing a JON Page Charge/Copyright Form (.pdf). SON then registers the copyright. Subsequent use of published materials requires written permission from the SON and may be obtained by contacting the current Editor-in-Chief and state where and how the material will be used.
The author warrants that the article is an original work not published elsewhere in whole or in part, except in abstract form, and that the author has full power to make this grant. If portions of the article have been published previously, then the author warrants that permission has been obtained from the copyright holder and the author will submit a copy of the permission release with this copyright transfer form.
SON shall claim no proprietary right other than copyright. Authors and coauthors retain the right to revise, adapt, modify, or otherwise use all or part of the article in future works of the author(s), such as press releases, lectures, and reviews, provided that all such use is for the personal noncommercial benefit of the author(s). All patent rights are retained by the author(s).