Action Potentials in Venus's-Flytraps: Long-term Observations Following the Capture of Prey

Affolter, James M.; Olivo, Richard F.

doi:10.2307/2424177

Cited by 24 publications

(17 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…5). That entrapped prey stimulate the trigger hairs and result in generation of action potentials was shown by Affolter and Olivo (1975). Lichtner and Williams (1977) elicited action potentials in traps for .5 h using nylon bristles.…”

Section: Discussionmentioning

confidence: 93%

Trap closure and prey retention in Venus flytrap (Dionaea muscipula) temporarily reduces photosynthesis and stimulates respiration

2009

View full text Add to dashboard Cite

show abstract

Section: Discussionmentioning

confidence: 93%

Trap closure and prey retention in Venus flytrap (Dionaea muscipula) temporarily reduces photosynthesis and stimulates respiration

2009

View full text Add to dashboard Cite

show abstract

“…The action potentials in Dionaea have been extensively studied (e.g. Burdon-Sanderson, 1873 ; Affolter and Olivo, 1975 ; Hodick and Sievers, 1986 , 1988 , 1989 ; Sibaoka, 1991 ; Trebacz and Sievers, 1998 ; Krol et al , 2006 ; Volkov et al , 2007 , 2008 a , b , c , 2009 a , b ). They propagate from mechanosensitive trigger hairs of the lobe to the trap midrib, more rapidly across the lower (abaxial) surface than across the upper one, while they are not recorded in adjacent lamina ( Burdon-Sanderson, 1873 ; Burdon-Sanderson and Page, 1876 ; Williams and Pickard, 1980 ; Volkov et al , 2007 ).…”

Section: Introductionmentioning

confidence: 99%

On the mechanism underlying photosynthetic limitation upon trigger hair irritation in the carnivorous plant Venus flytrap (Dionaea muscipula Ellis)

Pavlovič

Slováková

Pandolfi

et al. 2011

Journal of Experimental Botany

105

View full text Add to dashboard Cite

Mechanical stimulation of trigger hairs on the adaxial surface of the trap of Dionaea muscipula leads to the generation of action potentials and to rapid leaf movement. After rapid closure secures the prey, the struggle against the trigger hairs results in generation of further action potentials which inhibit photosynthesis. A detailed analysis of chlorophyll a fluorescence kinetics and gas exchange measurements in response to generation of action potentials in irritated D. muscipula traps was used to determine the ‘site effect’ of the electrical signal-induced inhibition of photosynthesis. Irritation of trigger hairs and subsequent generation of action potentials resulted in a decrease in the effective photochemical quantum yield of photosystem II (ΦPSII) and the rate of net photosynthesis (AN). During the first seconds of irritation, increased excitation pressure in photosystem II (PSII) was the major contributor to the decreased ΦPSII. Within ∼1 min, non-photochemical quenching (NPQ) released the excitation pressure at PSII. Measurements of the fast chlorophyll a fluorescence transient (O-J-I-P) revealed a direct impact of action potentials on the charge separation–recombination reactions in PSII, although the effect seems to be small rather than substantial. All the data presented here indicate that the main primary target of the electrical signal-induced inhibition of photosynthesis is the dark reaction, whereas the inhibition of electron transport is only a consequence of reduced carboxylation efficiency. In addition, the study also provides valuable data confirming the hypothesis that chlorophyll a fluorescence is under electrochemical control.

show abstract

“…Applied stimuli open water channels connecting the two layers, water rushes from one hydraulic layer to another, and the trap relaxes to the equilibrium configuration, its closed state. Affolter and Olivo (1975) monitored electrical signaling from the Venus flytrap after a live prey was captured. Stimulation of trigger hairs after trap closure results in additional constricting of the trap.…”

Section: Introductionmentioning

confidence: 99%

Energetics and forces of the Dionaea muscipula trap closing

Volkov

Murphy

Clemmons

et al. 2012

Journal of Plant Physiology

View full text Add to dashboard Cite

Action Potentials in Venus's-Flytraps: Long-term Observations Following the Capture of Prey

Cited by 24 publications

References 0 publications

Trap closure and prey retention in Venus flytrap (Dionaea muscipula) temporarily reduces photosynthesis and stimulates respiration

Trap closure and prey retention in Venus flytrap (Dionaea muscipula) temporarily reduces photosynthesis and stimulates respiration

On the mechanism underlying photosynthetic limitation upon trigger hair irritation in the carnivorous plant Venus flytrap (Dionaea muscipula Ellis)

Energetics and forces of the Dionaea muscipula trap closing

Contact Info

Product

Resources

About