Effect of trifluoperazine and verapamil on herbicide stimulated growth of cotton

• Published in: Journal of plant nutrition Vol. 20; no. 1; pp. 69 - 80
• Main Author: Allender, W.J. (NSW Agriculture, Rydalmere, Australia.)
• Format: Journal Article
• Language: English
• Published: Philadelphia, NJ Taylor & Francis Group 1997; Taylor & Francis
• Subjects: 2,4-D; Absorption. Translocation of ions and substances. Permeability; Agronomy. Soil science and plant productions; ANTHELMINTHIQUE; ANTIHELMINTICOS; Biological and medical sciences; Chemical agents; Chemical control; CONTENIDO DE MATERIA SECA; CRECIMIENTO; CROISSANCE; Economic plant physiology; ESTIMULO; Fundamental and applied biological sciences. Psychology; GOSSYPIUM HIRSUTUM; INHIBICION; INHIBITION; MEDICAMENTOS CARDIOVASCULARES; METRIBUZINA; METRIBUZINE; MODIFICATEUR CARDIOVASCULAIRE; Nutrition. Photosynthesis. Respiration. Metabolism; Parasitic plants. Weeds; Phytopathology. Animal pests. Plant and forest protection; Plant physiology and development; STIMULUS; SUPERFICIE FOLIAR; SURFACE FOLIAIRE; TENEUR EN MATIERE SECHE; TOXICIDAD; TOXICITE; Vegetative apparatus, growth and morphogenesis. Senescence; Weeds; Malvaceae; Agricultural chemical product; Trifluoperazine; Growth; Calcium antagonist; Cell biology; Stimulation; Ionic channel; Fiber crop; Signal; Membrane transport; Dicotyledones; Angiospermae; Secondary effect; Plant growth substance; Mechanism of action; hormesis; Greenhouse study; Phytopharmacology; Growth inhibitor; Nutrition; Experimental physiology; 2,4-D; Soilless study; Metabolic inhibitor; Calcium Ions; Biological activity; Herbicide; Sublethal dose; Triazine derivatives; Metribuzin; Verapamil; Spermatophyta; Gossypium hirsutum; Phytohormone
• ISSN: 0190-4167; 1532-4087
• DOI: 10.1080/01904169709365234

Pretreatment of hydroponically-grown cotton with trifluoperazine (TFP) and verapamil (VPL), respectively, inhibited 2,4-dichlorophenoxyacetic acid (2,4-D) and metribuzin [4-amino-6-tert-butyl-3-methylthio 1,2,4-triazin-5(4H)-one (MTZ)]-induced hormetic growth as measured by total leaf areas and dry weights. Trifluoperazine, an anti-calmodulin drug, proved to be a more effective inhibitor of hormetic growth than VPL, a calcium (Ca(2+))-channel antagonist. It is suggested that Ca(2+) influx is involved in the growth increase observed in hormesis