Plant spines deter herbivory by restricting caterpillar movement.

Abstract

The spines of flowering plants are thought to function primarily in defence against mammalian herbivores; however, we previously reported that feeding by Manduca sexta caterpillars on the leaves of horsenettle plants (Solanum carolinense) induces increased development of internode spines on new growth. To determine whether and how spines impact caterpillar… (More)
DOI: 10.1098/rsbl.2017.0176

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