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Titolo:
Involvement of receptor potentials and action potentials in mechano-perception in plants
Autore:
Shimmen, T;
Indirizzi:
Himeji Inst Technol, Fac Sci, Dept Life Sci, Harima Sci Pk City, Hyogo 6781297, Japan Himeji Inst Technol Harima Sci Pk City Hyogo Japan 6781297 6781297, Japan
Titolo Testata:
AUSTRALIAN JOURNAL OF PLANT PHYSIOLOGY
fascicolo: 7, volume: 28, anno: 2001,
pagine: 567 - 576
SICI:
0310-7841(2001)28:7<567:IORPAA>2.0.ZU;2-L
Fonte:
ISI
Lingua:
ENG
Soggetto:
MIMOSA-PUDICA; MAIN PULVINUS; ALDROVANDA-VESICULOSA; TRAP-LOBES; MEMBRANE-POTENTIALS; NITELLOPSIS-OBTUSA; CYTOSOLIC CALCIUM; EXCITABLE CELLS; CHARACEAN CELLS; ION EFFLUX;
Keywords:
action potential; Aldrovanda; Chara; mechano-perception; Mimosa; receptor potential;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Life Sciences
Citazioni:
60
Recensione:
Indirizzi per estratti:
Indirizzo: Shimmen, T Himeji Inst Technol, Fac Sci, Dept Life Sci, Harima Sci Pk City, Hyogo 6781297, Japan Himeji Inst Technol Harima Sci Pk City Hyogo Japan 6781297 pan
Citazione:
T. Shimmen, "Involvement of receptor potentials and action potentials in mechano-perception in plants", AUST J PLAN, 28(7), 2001, pp. 567-576

Abstract

The rapid turgor movements of Mimosa pudica and some carnivorous plants have long stimulated the interest of botanists. In addition, it is becoming evident that slower responses of plants to mechanical stimuli, such as coiling of tendrils and thigmomorphogenesis, are common phenomena. Electrophysiological studies on mechano-perception have been carried out in M. pudica and carnivorous plants, and have established that the response to mechanical stimulation is composed of three steps: perception of the stimulus, transmission of the signal, and induction of movement in motor cells. The first step is due to the receptor potential, the second and third steps are mediated by the action potential. In this article, the mechanisms of responses to mechanical stimuli of these plants are considered. Since higher plants are composed of complex tissues, detailed analysis of electrical phenomena is rather difficult, and so the mechanism for generating the receptor potentialhad not yet been studied. Characean cells have proved to be more amenable to the study of the electrophysiology of plant membranes because of their large cell size and the ease by which single cells can be isolated. Recent progress in studies of the receptor potential in characean cells is also discussed.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 06/04/20 alle ore 05:18:13