A dynamical model for the
            <i>Utricularia</i>
            trap

Llorens, Coraline; Argentina, Médéric; Bouret, Yann; Marmottant, Philippe; Vincent, Olivier

doi:10.1098/rsif.2012.0512

Cited by 11 publications

(6 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…High-speed snap-buckling movements (61,62) occur following triggered release of negative internal trap pressure achieved by active pumping out of water (63). Prey is engulfed with the influx of liquid, after which the trap may reset itself with a new negative pressure potential.…”

Section: Significancementioning

confidence: 99%

Long-read sequencing uncovers the adaptive topography of a carnivorous plant genome

Lan

Renner

Ibarra-Laclette

et al. 2017

Proc. Natl. Acad. Sci. U.S.A.

View full text Add to dashboard Cite

Utricularia gibba, the humped bladderwort, is a carnivorous plant that retains a tiny nuclear genome despite at least two rounds of whole genome duplication (WGD) since common ancestry with grapevine and other species. We used a third-generation genome assembly with several complete chromosomes to reconstruct the two most recent lineage-specific ancestral genomes that led to the modern U. gibba genome structure. Patterns of subgenome dominance in the most recent WGD, both architectural and transcriptional, are suggestive of allopolyploidization, which may have generated genomic novelty and led to instantaneous speciation. Syntenic duplicates retained in polyploid blocks are enriched for transcription factor functions, whereas gene copies derived from ongoing tandem duplication events are enriched in metabolic functions potentially important for a carnivorous plant. Among these are tandem arrays of cysteine protease genes with trap-specific expression that evolved within a protein family known to be useful in the digestion of animal prey. Further enriched functions among tandem duplicates (also with trap-enhanced expression) include peptide transport (intercellular movement of broken-down prey proteins), ATPase activities (bladder-trap acidification and transmembrane nutrient transport), hydrolase and chitinase activities (breakdown of prey polysaccharides), and cell-wall dynamic components possibly associated with active bladder movements. Whereas independently polyploid Arabidopsis syntenic gene duplicates are similarly enriched for transcriptional regulatory activities, Arabidopsis tandems are distinct from those of U. gibba, while still metabolic and likely reflecting unique adaptations of that species. Taken together, these findings highlight the special importance of tandem duplications in the adaptive landscapes of a carnivorous plant genome.

show abstract

Section: Significancementioning

confidence: 99%

Long-read sequencing uncovers the adaptive topography of a carnivorous plant genome

Lan

Renner

Ibarra-Laclette

et al. 2017

Proc. Natl. Acad. Sci. U.S.A.

View full text Add to dashboard Cite

show abstract

“…Plant movements, and trap functioning in active carnivorous plants in particular, have been comprehensively investigated since Darwin's early observations in respect to functional morphology, physiology and biomechanics. State‐of‐the‐art methods, especially high‐speed cinematography, micro‐mechanical analyses, dynamic simulations and physical modelling, invaluably help to verify and understand the mechanisms involved . Future studies should focus on stimulus perception (e.g.…”

Section: Discussion and Outlook: Toward Understanding Universal Mechamentioning

confidence: 99%

Faster than their prey: New insights into the rapid movements of active carnivorous plants traps

2013

View full text Add to dashboard Cite

Plants move in very different ways and for different reasons, but some active carnivorous plants perform extraordinary motion: Their snap-, catapult- and suction traps perform very fast and spectacular motions to catch their prey after receiving mechanical stimuli. Numerous investigations have led to deeper insights into the physiology and biomechanics of these trapping devices, but they are far from being fully understood. We review concisely how plant movements are classified and how they follow principles that bring together speed, actuation and architecture of the moving organ. In particular, we describe and discuss how carnivorous plants manage to execute fast motion. We address open questions and assess the prospects for future studies investigating potential universal mechanisms that could be the basis of key characteristic features in plant movement such as stimulus transduction, post-stimulatory mechanical answers, and organ formation.

show abstract

“…a rapid curvature inversion of the trapdoor before opening. Llorens et al . (2012) proposed a dynamical model incorporating the whole trap.…”

Section: The Trapdoor Movementmentioning

confidence: 99%

Fastest predators in the plant kingdom: functional morphology and biomechanics of suction traps found in the largest genus of carnivorous plants

Poppinga¹,

Weisskopf²,

Westermeier³

et al. 2015

AoB PLANTS

View full text Add to dashboard Cite

How can plants move without muscles, nerves and technical hinge analogies? Carnivorous bladderworts (Utricularia spp., Lentibulariaceae) perform one of the fastest movements known in the plant kingdom by capturing their prey (mainly small crustaceans) with suction traps. Capture lasts only half a millisecond, and animals are sucked into the trap with an acceleration of 600 g, which leaves no chance of escape. We review the current state of knowledge about these sophisticated trapping devices, highlight their biomechanical, functional-morphological and physiological peculiarities and discuss open questions for possible future studies.

show abstract

A dynamical model for the Utricularia trap

Cited by 11 publications

References 12 publications

Long-read sequencing uncovers the adaptive topography of a carnivorous plant genome

Long-read sequencing uncovers the adaptive topography of a carnivorous plant genome

Faster than their prey: New insights into the rapid movements of active carnivorous plants traps

Fastest predators in the plant kingdom: functional morphology and biomechanics of suction traps found in the largest genus of carnivorous plants

Contact Info

Product

Resources

About