Water extrustion in the trap bladders ofUtricularia vulgaris

@article{Sasago2006WaterEI,
  title={Water extrustion in the trap bladders ofUtricularia vulgaris},
  author={Akira Sasago and Takao Sibaoka},
  journal={The botanical magazine = Shokubutsu-gaku-zasshi},
  year={2006},
  volume={98},
  pages={113-124}
}
In the trap bladder ofUtricularia vulgaris, increase in sucrose concentrations in bladder lumen fluid decreased resetting rate. Addition of 350 mM sucrose to lumen fluid stopped the resetting. Therefore, water seems to move down the water potential gradient between the lumen and the arm cells of bifid trichomes, which are the site of inlet in the water pathway. Application of dinitrophenol, sodium azide, KCN, monoiodoacetic acid or pentachlorophenol in lumen fluid much reduced the water outflow… 
Water extrusion in the trap bladders ofUtricularia vulgaris
TLDR
From light and electron microscopic observations of the entrance region, it is concluded that the inlet of water outflow is the bifid trichomes which stand on the inner surface of the bladder near the entrance, and the outlet is the outer and middle zones of the pavement epithelium, or threshold, against which the free edge of the door rests.
The smallest but fastest
  • L. Adamec
  • Environmental Science
    Plant signaling & behavior
  • 2011
TLDR
A new concept on the role of the commensal community for the plants is presented and the nature of the interactions between the traps and the mutualistic microorganisms living inside as commensals are considered.
The Trap Architecture of Utricularia multifida and Utricularia westonii (subg. Polypompholyx)
TLDR
The anatomical results indirectly support the hypothesis that both species have suction traps like all other Utricularia species, but the biophysical data rather suggest a passive valve mechanism.
Ecological implications of organic carbon dynamics in the traps of aquatic carnivorous Utricularia plants.
TLDR
It is suggested that organic carbon dynamics within the traps, involving both the plant and associated microbial assemblages, underlies the acquisition of key nutrients by Utricularia and may help explain the evolutionary success of the genus.
Resting electrical network activity in traps of the aquatic carnivorous plants of the genera Aldrovanda and Utricularia
TLDR
Interestingly, more complex electrical activity was found in traps than in trap-free organs, supporting the hypothesis that the nature of the electrical activity may reflect the anatomical and functional complexity of different organs.
Suction Flows Generated by the Carnivorous Bladderwort Utricularia—Comparing Experiments with Mechanical and Mathematical Models
Suction feeding is a well-understood feeding mode among macroscopic aquatic organisms. The little we know about small suction feeders from larval fish suggests that small suction feeders are not
Capture of algae promotes growth and propagation in aquatic Utricularia.
TLDR
The mass capture of immotile particles confirms the ecological importance of autonomous firing of the traps, andrelations with chemical parameters indicate that Utricularia benefits from nutrient-rich waters by uptake of inorganic nutrients from the water, by the production of more traps per unit of shoot length, and by the capture of more prey particles per trap, as nutrient- rich waters harbour more prey organisms.
Thermodynamics of the bladderwort feeding strike-suction power from elastic energy storage.
TLDR
Estimates of elastic energy storage and frictional losses during suction events support the hypothesis that small suction feeders convert a large proportion of the elastic energy stored in the trap walls into kinetic energy of the inspired water, with little energy thermalized due to friction.
Morphological Differentiation of the Trap in Aquatic and Terrestrial Utricularia Species
TLDR
The morphology and microstructure of the trap in aquatic Utricularia japonica and terrestrial U. livida were examined to compare the characteristics of trap features between the aquatic and terrestrial species and all of the aforementioned features were highly related in their structure and function during carnivorous mechanism inUtricularia.
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References

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Water extrusion in the trap bladders ofUtricularia vulgaris
TLDR
From light and electron microscopic observations of the entrance region, it is concluded that the inlet of water outflow is the bifid trichomes which stand on the inner surface of the bladder near the entrance, and the outlet is the outer and middle zones of the pavement epithelium, or threshold, against which the free edge of the door rests.
Transport of Solutes and Water by Resetting Bladders of Utricularia
The bladder of the insectivorous aquatic plant Utricularia, after stimulation and consequent sudden increase in volume, slowly resets, transporting solutes, mainly Na+, K+ and C1-, and water, from
Ion Fluxes and Short-Circuit Current in Internally Perfused Cells of Valonia ventricosa
TLDR
Ion transport in the giant celled marine alga, Valonia ventricosa, was studied during internal perfusion and short-circuiting of the vacuole potential, and the ionic and electrical properties of normal and perfused cells of Valonia are compared.
VIII.2 – Solute and Water Transport in the Bladders of Utricularia
Plants and water