44:
20:
243:, upward movement of water within the pulvinus joint in response to electrical stimulation was observed in the pulvinus at the base of the petiole (=the leaf stalk). Movement of water to the upper or lower part of the pulvinus causes asymmetric swelling, therefore causing the stalk to either droop or rise.
209:
A pulvinus is located at the base of each leaflet of the plant. Mechanical stimulation via touch is perceived and is translated to electrical stimulation causing the flow of ions out of the pulvinus cells. An upregulation of water channel proteins
232:. The drop in turgor pressure is reversible but slow. Leaves slowly open to their initial position after 20 minutes of lack of stimulation. It has been demonstrated that seismonastic movement can be inhibited with the use of
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or leaflet that facilitates growth-independent movement. Pulvinus is also a botanical term for the persistent peg-like bases of the leaves in the coniferous genera
144:
ions from the surrounding cells. This is followed by an efflux of water, resulting in a sudden change of turgor pressure in the cells of the pulvinus.
312:
Ueda, Minoru; Yamamura, Shosuke (9 April 1999). "Leaf-closing substance of Mimosa pudica L.; chemical studies on another leaf-movement of mimosa II".
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membrane of pulvini allow for the efflux of water that contributes to the change in turgor pressure. The process is similar to the mechanism of
25:
185:) movements appear to be regulated through electrical and chemical signal transduction spreading the stimulus throughout the plant.
715:
296:
35:
447:
Fleurat-Lessard, P.; Frangne, N.; Maeshima, M.; Ratajczak, R.; Bonnemain, J. L.; Martinoia, E. (1 July 1997).
449:"Increased Expression of Vacuolar Aquaporin and H+-ATPase Related to Motor Cell Function in Mimosa pudica L"
202:, the internal biological clock mediates the closing of leaflets at night and opening during day. Rapid (
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pressure leading to a contraction or expansion of the parenchyma tissue. The response is initiated when
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101:), where the leaf is attached, or in a compound leaf at the place where the leaflets are joined to its
43:
730:
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Volkov, Alexander G.; Foster, Justin C.; Baker, Kara D.; Markin, Vladislav S. (28 October 2014).
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Volkov, Alexander G.; Foster, Justin C.; Baker, Kara D.; Markin, Vladislav S. (1 October 2010).
735:
220:) allows for the rapid flux of water out of these motor cells. Water flux out of the cell's
612:"Inhalational and local anaesthetics reduce tactile and thermal responses in mimosa pudica"
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results in a decrease in turgor pressure, and the characteristic closing of the leaves of
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Ahmad, Hafsa; Sehgal, Sakshi; Mishra, Anurag; Gupta, Rajiv (23 August 2012).
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Common examples for pulvinar movements include the night closure movement of
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Volkov, Alexander G; Foster, Justin C; Markin, Vladislav S (1 July 2010).
82:. Pulvinar movement is common, for example, in members of the bean family
19:
464:
233:
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216:) and membrane proteins which move solutes across a cell membrane (H+ -
206:) movement of leaves is triggered in response to touch and temperature.
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Heywood, V.H.; Brummitt, R.K.; Culham, A.; Seberg, O., O. (2007).
136:. The increased sugar concentration in the apoplast decreases the
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656:"Mechanical and electrical anisotropy in Mimosa pudica pulvini"
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710:, 7th Edition, W.H. Freeman and Company Publishers, New York,
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346:
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Milne, Avaleigh; Beamish, Travis (19 December 1998).
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leaves and the touch response of the sensitive plant
553:De Luccia, Thiago Paes de Barros (September 2012).
555:"Mimosa pudica, Dionaea muscipula and anesthetics"
400:"Molecular electronics in pinnae of Mimosa pudica"
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506:"Mechanical and electrical anisotropy in pulvini"
109:within a flexible, bulky cylinder of thin-walled
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706:P.H. Raven, R.F. Evert, S.E. Eichhorn (2005):
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647:
113:cells. A pulvinus is also sometimes called a
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311:
188:
349:"Mimosa pudica L. (Laajvanti): An overview"
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120:Pulvinar movement is caused by changes in
117:(meaning a knee-like structure in Latin).
93:Pulvini may be present at the base of the
86:(Leguminosae) and the prayer plant family
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66:-like thickening at the base of a plant
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177:and light signal transduction through
289:Flowering plant families of the world
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173:movements) are controlled by the
23:Section through the pulvinus of
36:The Power of Movement in Plants
660:Plant Signaling & Behavior
616:Canadian Journal of Anesthesia
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559:Plant Signaling & Behavior
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510:Plant Signaling & Behavior
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404:Plant Signaling & Behavior
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16:Swollen or thickened leaf base
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326:10.1016/s0040-4039(99)00342-1
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105:. They consist of a core of
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291:. New York: Firefly Books.
140:and triggers the efflux of
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241:nuclear magnetic resonance
224:and into its surrounding
366:10.4103/0973-7847.99945
672:10.4161/psb.5.10.12658
522:10.4161/psb.5.10.12658
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416:10.4161/psb.5.7.11569
353:Pharmacognosy Reviews
128:is unloaded from the
97:or on its other end (
49:Jacaranda jasminoides
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465:10.1104/pp.114.3.827
169:. Sleep movements (
314:Tetrahedron Letters
629:10.1007/BF03012612
181:. Touch response (
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708:Biology of Plants
666:(10): 1211–1221.
571:10.4161/psb.21000
516:(10): 1211–1221.
320:(15): 2981–2984.
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31:Charles Darwin
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268:. Retrieved
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234:anaesthetics
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26:Oxalis rosea
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179:phytochrome
171:nyctinastic
103:middle stem
88:Marantaceae
47:Pulvini of
725:Categories
270:2024-08-08
247:References
213:aquaporins
146:Aquaporins
111:parenchyma
95:leaf stalk
579:1559-2324
473:0032-0889
334:0040-4039
156:closure.
142:potassium
132:into the
115:geniculum
690:20855975
638:10210057
597:22899087
540:20855975
491:12223745
434:20448476
385:23055637
226:apoplast
222:symplast
154:stomatal
134:apoplast
84:Fabaceae
56:pulvinus
33:(1880):
29:, from:
681:3115350
588:3489652
531:3115350
425:3115031
376:3459453
261:"Picea"
150:vacuole
148:on the
126:sucrose
60:pulvini
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239:Using
218:ATPase
161:legume
130:phloem
122:turgor
79:Tsuga
73:Picea
64:joint
58:(pl.
712:ISBN
686:PMID
634:PMID
593:PMID
575:ISSN
536:PMID
487:PMID
469:ISSN
430:PMID
381:PMID
330:ISSN
293:ISBN
99:apex
76:and
68:leaf
676:PMC
668:doi
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196:In
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Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
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