caa a22 4500 469098015 CHVBK 20180323133036.0 cr unu---uuuuu 170328e19920801xx s 000 0 eng 10.1007/BF00317784 doi (NATIONALLICENCE)springer-10.1007/BF00317784 Effects of genotype, habitat, and seasonal variation on iridoid glycoside content of Plantago lanceolata (Plantaginaceae) and the implications for insect herbivores [Elektronische Daten] [M. Deane Bowers, Sharon Collinge, Susan Gamble, Johanna Schmitt] Summary: We investigated the effects of genotype, habitat, and seasonal variation on production of the iridoid glycosides, aucubin and catalpol, in leaves of the common weed Plantago lanceolata. Two genotypes, one each from a lawn and an adjacent abandoned hayfield population, were clonally replicated in the greenhouse, and then planted back into the two habitats. One quarter of the plants from each treatment were harvested on each of four dates, at approximately two-week intervals. Over the course of the growing season, and in both habitats, we found a significant increase in the concentration of both aucubin and catalpol in P. lanceolata leaves. The genotypes differed in their response to environmental variation, both in time and between sites, as indicated by significant genotype x date and genotype x site interactions. Early in the season, habitat (lawn or field) had a greater effect on iridoid glycoside concentration than did plant genotype, but later in the season, plant genotype was more influential in determining the iridoid glycoside concentration. Thus, the relative palatability of Plantago genotypes to specialist and generalist herbivores may vary in time and space. Springer-Verlag, 1992 Seasonal variation nationallicence Iridoid glycosides nationallicence Herbivory nationallicence Plantago nationallicence Genotype x environment interactions nationallicence Deane Bowers M. Department of Environmental, Population, and Organismic Biology, University of Colorado, Campus Box 334, 80309, Boulder, CO, USA aut Collinge Sharon Graduate School of Design, Harvard University, 48 Quincy Street, 02138, Cambridge, MA, USA aut Gamble Susan Graduate Program in Ecology and Evolutionary Biology, Brown University, Box G-W301, 02912, Providence, RI, USA aut Schmitt Johanna Graduate Program in Ecology and Evolutionary Biology, Brown University, Box G-W301, 02912, Providence, RI, USA aut Oecologia Springer-Verlag 91/2(1992-08-01), 201-207 0029-8549 91:2<201 1992 91 442 https://doi.org/10.1007/BF00317784 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00317784 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Deane Bowers M. Department of Environmental, Population, and Organismic Biology, University of Colorado, Campus Box 334, 80309, Boulder, CO, USA aut NATIONALLICENCE 700 1- Collinge Sharon Graduate School of Design, Harvard University, 48 Quincy Street, 02138, Cambridge, MA, USA aut NATIONALLICENCE 700 1- Gamble Susan Graduate Program in Ecology and Evolutionary Biology, Brown University, Box G-W301, 02912, Providence, RI, USA aut NATIONALLICENCE 700 1- Schmitt Johanna Graduate Program in Ecology and Evolutionary Biology, Brown University, Box G-W301, 02912, Providence, RI, USA aut NATIONALLICENCE 773 0- Oecologia Springer-Verlag 91/2(1992-08-01), 201-207 0029-8549 91:2<201 1992 91 442 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer