Trap diversity and character evolution in carnivorous bladderworts (Utricularia, Lentibulariaceae).

ABSTRACT: Bladderworts (Utricularia, Lentibulariaceae, Lamiales) constitute the largest genus of carnivorous plants but only aquatic species (about one fifth of the genus) have so far been thoroughly studied as to their suction trap functioning. In this study, we comparatively investigated trap biomechanics in 19 Utricularia species to examine correlations between life-forms, trapping mechanisms, and functional-morphological traits. Our investigations show the existence of two functional trap principles (passive trap in U. multifida vs. active suction traps), and - in active suction traps - three main trapdoor movement types (with several subtypes). The trapdoor movement types and their corresponding functional-morphological features most presumably represent adaptations to the respective habitat. W

SUBMITTER: Westermeier AS 

PROVIDER: S-EPMC5608911 | biostudies-literature | 2017 Sep

REPOSITORIES: biostudies-literature