Feeding on an exotic host plant enhances plasma levels of phenoloxidase by modulating feeding efficiency in a specialist insect herbivore

被引:3
|
作者
Mo, Carmen [1 ]
Smilanich, Angela M. [1 ,2 ]
机构
[1] Univ Nevada, Dept Biol, Reno, NV 89557 USA
[2] Univ Nevada, Ecol Evolut & Conservat Biol Grad Program, Reno, NV 89557 USA
基金
美国国家科学基金会;
关键词
lepidoptera; herbivore; immunocompetence; nutrition; immnune response; ILLNESS-INDUCED ANOREXIA; IRIDOID GLYCOSIDES; TRADE-OFFS; EVOLUTIONARY ECOLOGY; IMMUNE-RESPONSE; BUCKEYE; LEPIDOPTERA; SURVIVAL; DEFENSE; SPECIFICITY;
D O I
10.3389/fphys.2023.1127670
中图分类号
Q4 [生理学];
学科分类号
071003 ;
摘要
Background: Exotic plant species represent a novel resource for invertebrates and many herbivorous insects have incorporated exotic plants into their diet. Using a new host plant can have physiological repercussions for these herbivores that may be beneficial or detrimental. In this study, we compared how using an exotic versus native host plant affected the immune system response and feeding efficiency of a specialist lepidopteran, the common buckeye (Junonia coenia: Nymphalidae, Hubner 1822).Materials and Methods: In a lab experiment, larvae were reared on either the exotic host plant, Plantago lanceolata (Plantaginaceae), or the native host plant, Mimulus guttatus (Phrymaceae). Beginning at second instar feeding efficiency data were collected every 2 days until fifth instar when immune assays were performed. Immune assays consisted of standing phenoloxidase activity, total phenoloxidase activity, and melanization.Results: Interestingly, we found that all three immune system parameters were higher on the exotic host plant compared to the native host plant. The exotic host plant also supported higher pupal weights, faster development time, greater consumption, and more efficient approximate digestibility. In contrast, the native host plant supported higher efficiency of conversion of ingested and digested food. The relationship between immunity and feeding efficiency was more complex but showed a large positive effect of greater host plant consumption on all immune parameters, particularly for the exotic host plant. While not as strong, the efficiency of conversion of digested food tended to show a negative effect on the three immune parameters.Conclusion: Overall, the exotic host plant proved to be beneficial for this specialist insect with regard to immunity and many of the feeding efficiency parameters and continued use of this host plant is predicted for populations already using it.
引用
收藏
页数:10
相关论文
共 50 条
  • [22] Plant silicon defences reduce the performance of a chewing insect herbivore which benefits a contemporaneous sap-feeding insect
    Islam, Tarikul
    Moore, Ben D.
    Johnson, Scott N.
    ECOLOGICAL ENTOMOLOGY, 2022, 47 (06) : 951 - 958
  • [23] Feeding enhances photosynthetic efficiency in the carnivorous pitcher plant Nepenthes talangensis
    Pavlovic, Andrej
    Singerova, Lucia
    Demko, Viktor
    Hudak, Jan
    ANNALS OF BOTANY, 2009, 104 (02) : 307 - 314
  • [24] Small but strong: herbivory by sap-feeding insect reduces plant progeny growth but enhances direct and indirect anti-herbivore defenses
    de Souza, Livia Aparecida
    Penaflor, Maria Fernanda G. V.
    OECOLOGIA, 2024, 205 (01) : 191 - 201
  • [25] Brassica Plant Responses to Mild Herbivore Stress Elicited by Two Specialist Insects from Different Feeding Guilds
    P. Sotelo
    E. Pérez
    A. Najar-Rodriguez
    A. Walter
    S. Dorn
    Journal of Chemical Ecology, 2014, 40 : 136 - 149
  • [26] Brassica Plant Responses to Mild Herbivore Stress Elicited by Two Specialist Insects from Different Feeding Guilds
    Sotelo, P.
    Perez, E.
    Najar-Rodriguez, A.
    Walter, A.
    Dorn, S.
    JOURNAL OF CHEMICAL ECOLOGY, 2014, 40 (02) : 136 - 149
  • [27] Genetic Variation in Host Plants Influences the Mate Preferences of a Plant-Feeding Insect
    Rebar, Darren
    Rodriguez, Rafael L.
    AMERICAN NATURALIST, 2014, 184 (04): : 489 - 499
  • [28] Feeding on Host Plants with Different Concentrations and Structures of Pyrrolizidine Alkaloids Impacts the Chemical-Defense Effectiveness of a Specialist Herbivore
    Martins, Carlos H. Z.
    Cunha, Beatriz P.
    Solferini, Vera N.
    Trigo, Jose R.
    PLOS ONE, 2015, 10 (10):
  • [30] Salicylic acid induced by herbivore feeding antagonizes jasmonic acid mediated plant defenses against insect attack
    Costarelli, Alma
    Bianchet, Chantal
    Ederli, Luisa
    Salerno, Gianandrea
    Piersanti, Silvana
    Rebora, Manuela
    Pasqualini, Stefania
    PLANT SIGNALING & BEHAVIOR, 2020, 15 (01) : 1704517