Electrical memory in Venus flytrap

Volkov, Alexander G.; Carrell, Holly; Baldwin, Andrew J.; Markin, Vladislav S.

doi:10.1016/j.bioelechem.2009.03.005

Cited by 73 publications

(63 citation statements)

References 42 publications

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“…For the transcriptomics analyses, the digestion process was initiated by feeding the plants yellow mealworm beetles (Tenebrio molitor). After 3,8,24,48, and 72 h, the leaves were harvested, rinsed with water to remove the partially digested beetle and beetle fragments, snap frozen in liquid nitrogen, and stored at Ϫ80°C. For each time point, two stimulated traps were harvested.…”

Section: Plant Materials For 454 Sequencing and Sampling By Filter Papermentioning

confidence: 99%

The Protein Composition of the Digestive Fluid from the Venus Flytrap Sheds Light on Prey Digestion Mechanisms

Schulze

Sanggaard

Kreuzer

et al. 2012

Molecular & Cellular Proteomics

109

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The Venus flytrap (Dionaea muscipula) is one of the most well-known carnivorous plants because of its unique ability to capture small animals, usually insects or spiders, through a unique snap-trapping mechanism. The animals are subsequently killed and digested so that the plants can assimilate nutrients, as they grow in mineral-deficient soils. We deep sequenced the cDNA from Dionaea traps to obtain transcript libraries, which were used in the mass spectrometry-based identification of the proteins secreted during digestion. The identified proteins consisted of peroxidases, nucleases, phosphatases, phospholipases, a glucanase, chitinases, and proteolytic enzymes, including four cysteine proteases, two aspartic proteases, and a serine carboxypeptidase. The majority of the most abundant proteins were categorized as pathogenesis-related proteins, suggesting that the plant's digestive system evolved from defense-related processes. This indepth characterization of a highly specialized secreted fluid from a carnivorous plant provides new information about the plant's prey digestion mechanism and the evolutionary processes driving its defense pathways and nutrient acquisition. Molecular & Cellular

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Section: Plant Materials For 454 Sequencing and Sampling By Filter Papermentioning

confidence: 99%

The Protein Composition of the Digestive Fluid from the Venus Flytrap Sheds Light on Prey Digestion Mechanisms

Schulze

Sanggaard

Kreuzer

et al. 2012

Molecular & Cellular Proteomics

109

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“…48 As in legume pulvini, the movement of the Venus flytrap lobes is caused by changes in cell volume of opposing tissue groups by differential water flow linked to ion fluxes. 45 Nevertheless, despite the fact that researchers have investigated the mechanisms by which the trap closes so fast, only in the past 6 y, the dynamic of the movement started to become more clear, notably thanks to Forterre et al and Volkov et al 43,44,46,[50][51][52][53] Forterre et al divided the Venus flytrap movement into two components: an active biochemical component, pertinent to the mechanisms causing microscopic changes, and a passive elastic component, which is the macroscopic closing process determined by the doubly-curved leaf. A difference in turgor pressure constantly maintained between the upper and the lower cell layers of the leaf provides elastic curvature energy storage locked in the leaves.…”

Section: ©2 0 1 1 L a N D E S B I O S C I E N C E D O N O T D I S Tmentioning

confidence: 99%

“…44,50 Furthermore, it was demonstrated that this plant has a short-term electrical memory by the fact that it can accumulate previously applied small electrical charges, closing the trap when a threshold value is reached. 51,52 Species from the carnivorous plant genera Drosera and Pinguicula have sticky, highly modified colorful leaves that are capable to move acting like small insect traps (Fig. 3C-E).…”

Section: ©2 0 1 1 L a N D E S B I O S C I E N C E D O N O T D I S Tmentioning

confidence: 99%

Plants on the move: Towards common mechanisms governing mechanically-induced plant movements

Scorza

Dornelas²

2011

Plant Signaling & Behavior

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“…Plant tissues have different forms of memory such as sensory, short, and long-term memory. 1,3,29 Plants have a biological clock and circadian rhythms, which involve electrical elements of memory. 1,2,3,29 We should expect the finding of biomemristors in many different biological systems …”

Section: Introductionmentioning

confidence: 99%

“…[1][2][3][4] The standard electrical circuits comprise 3 basic elements: a resistor, a capacitor and an inductor. In addition to these elements, Chua,5 postulated the existence of a new element, which has electrical memory ( Fig.…”

Section: Introductionmentioning

confidence: 99%

Memristors: Memory elements in potato tubers

Volkov

Nyasani

Blockmon

et al. 2015

Plant Signaling & Behavior

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A memristor is a nonlinear element because its current-voltage characteristic is similar to that of a Lissajous pattern for nonlinear systems. This element was postulated recently and researchers are looking for it in different biosystems. We investigated electrical circuitry of red Irish potato tubers (Solanum tuberosum L.). The goal was to discover if potato tubers might have a new electrical component -a resistor with memory. The analysis was based on a cyclic currentvoltage characteristic where the resistor with memory should manifest itself. We found that the electrostimulation by bipolar sinusoidal or triangle periodic waves induces electrical responses in the potato tubers with fingerprints of memristors. Tetraethylammonium chloride, an inhibitor of voltage gated K C channels, transforms a memristor to a resistor in potato tubers. Our results demonstrate that a voltage gated K C channel in the excitable tissue of potato tubers has properties of a memristor. Uncoupler carbonylcyanide-4-trifluoromethoxy-phenyl hydrazone decreases the amplitude of electrical responses at low and high frequencies of bipolar periodic sinusoidal or triangle electrostimulating waves. The discovery of memristors in plants creates a new direction in the understanding of electrical phenomena in plants.

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Electrical memory in Venus flytrap

Cited by 73 publications

References 42 publications

The Protein Composition of the Digestive Fluid from the Venus Flytrap Sheds Light on Prey Digestion Mechanisms

The Protein Composition of the Digestive Fluid from the Venus Flytrap Sheds Light on Prey Digestion Mechanisms

Plants on the move: Towards common mechanisms governing mechanically-induced plant movements

Memristors: Memory elements in potato tubers

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