Barbara G. Pickard - Queen of Plant Electrophysiology

ABSTRACT Barbara Gillespie Pickard (1936–2019) studied plant electrophysiology and mechanosensory biology for more than 50 y. Her first papers on the roles of auxin in plant tropisms were coauthored with Kenneth V. Thimann. Later, she studied plant electrophysiology. She made it clear that plant action potentials are not a peculiar feature of so-called sensitive plants, but that all plants exhibit these fast electric signals. Barbara Gillespie Pickard proposed a neuronal model for the spreading of electric signals induced by mechanical stimuli across plant tissues. In later years, she studied the stretch-activated plasma membrane channels of plants and formulated the plasma-membrane control center model. Barbara Pickard summarized all her findings in a new model of phyllotaxis involving waves of auxin fluxes and mechano-sensory signaling.

• Publication year

  2021

• Venue

  Plant Signalling & Behavior

• Publication date

  2021-04-14

• Fields of study

  Biology, Medicine, Environmental Science

• Identifiers
  DOI 10.1080/15592324.2021.1911400PMID 33853497PMCID PMC8143215
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar, PubMed

• No claims are published for this paper.

• No concepts are published for this paper.

• Leaf vibrations produced by chewing provide a consistent acoustic target for plant recognition of herbivores

  2020cited by this paper
• The Arabidopsis trichome is an active mechanosensory switch.

  2017cited by this paper
• Arabidopsis Leaf Trichomes as Acoustic Antennae.

  2017cited by this paper
• From bioelectricity, via signaling, to behavioral actions

  2013cited by this paper
• Ion channels in plants

  2013cited by this paper
• Arabinogalactan proteins--becoming less mysterious.

  2013cited by this paper
• A model for leaf initiation: Determination of phyllotaxis by waves in the generative circle

  2011cited by this paper
• Delivering Force and Amplifying Signals in Plant Mechanosensing

  2007cited by this paper
• Historical Overview on Plant Neurobiology

  2006cited by this paper
• Historical Introduction to Plant Electrophysiology

  2006influential reference
• Covisualization in living onion cells of putative integrin, putative spectrin, actin, putative intermediate filaments, and other proteins at the cell membrane and in an endomembrane sheath

  2005cited by this paper
• Contemplating the plasmalemmal control center model+

  2005cited by this paper
• The endomembrane sheath: a key structure for understanding the plant cell?

  2005cited by this paper
• Voltage variation inLilium longiflorum pistils induced by pollination

  2005cited by this paper
• Ca2+ pulsation in BY-2 cells and evidence for control of mechanosensory Ca2+-selective channels by the plasmalemmal reticulum.

  2005cited by this paper
• Arabinogalactan protein and wall-associated kinase in a plasmalemmal reticulum with specialized vertices

  2000cited by this paper
• BioelectriCity, gravity and plants

  1997cited by this paper
• The Biochemical Response of Electrical Signaling in the Reproductive System of Hibiscus Plants

  1995cited by this paper
• Modulation of mechanosensitive calcium-selective cation channels by temperature.

  1993cited by this paper
• Mechanosensory calcium-selective cation channels in epidermal cells.

  1993cited by this paper
• Proton efflux from oat coleoptile cells and exchange with wall calcium after IAA or fusicoccin treatment

  1993cited by this paper
• The mechanosensory calcium-selective ion channel: key component of a plasmalemmal control centre?

  1993cited by this paper
• Aluminium and hydrogen ions inhibit a mechanosensory calcium-selective cation channel.

  1993cited by this paper
• Ionic Current Changes Associated with the Gravity-Induced Bending Response in Roots of Zea mays L.

  1992cited by this paper
• The electrical response of maize to auxins.

  1991cited by this paper
• Development of extracellular electric pattern aroundLepidium roots: its possible role in root growth and gravitropism

  1989cited by this paper
• Auxin causes oscillations of cytosolic free calcium and pH inZea mays coleoptiles

  1988cited by this paper
• Early events in geotropism of seedling shoots.

  1985cited by this paper
• Voltage transients elicited by sudden step-up of auxin.

  1984cited by this paper
• Lignified cells in Lilium longiflorum Thunb. styles and their relation to bioelectric potential changes

  1982cited by this paper
• Bioelectric potential changes in the style of Lilium longiflorum Thunb. after self- and cross-pollination of the stigma

  1981cited by this paper
• Depolarization of transmembrane potential of corn and wheat coleoptiles under reduced water potential and after IAA application

  1979cited by this paper
• Action potentials in higher plants

  1973cited by this paper
• Receptor potentials and action potentials in Drosera tentacles

  1972cited by this paper
• Properties of action potentials in Drosera tentacles

  1972cited by this paper
• Aspects on gravity-induced movements in plants

  1971cited by this paper
• Spontaneous electrical activity in shoots of Ipomoea, Pisum and Xanthium

  1971influential reference
• Action potentials resulting from mechanical stimulation of pea epicotyls

  1971cited by this paper
• Action Potentials in the Reproductive System of Plants

  1967cited by this paper
• Relationships between Photo-induced and Gravity-induced Electrical Potentials in Zea Mays

  1967cited by this paper
• Geotropic Response of Wheat Coleoptiles in Absence of Amyloplast Starch

  1966cited by this paper
• Transport and Distribution of Auxin during Tropistic Response. II. The Lateral Migration of Auxin in Phototropism of Coleoptiles.

  1964cited by this paper
• Electric Potentials and Auxin Translocation in Avena

  1963cited by this paper
• Transport & Distribution of Auxin during Tropistic Response. I. The Lateral Migration of Auxin in Geotropism.

  1963cited by this paper
• The lateral transport of indoleacetic acid-C14 in geotropism

  1961cited by this paper
• On the Electromotive Properties of the Leaf of Dionaea in the Excited and Unexcited States. Second Paper

  year unknowncited by this paper

• Plant Cognition—An Empirical Primer: Evidence, Implications, and Ethics

  2026cites this paper
• The “plant neurobiology” revolution

  2024cites this paper
• Monitoring Iron Stress in Tomato Plants Through Bioimpedance and Machine-Learning-Enhanced Classification Based on Circuit Component Analysis

  2024cites this paper
• Supervised classification and circuit parameter analysis of electrical bioimpedance spectroscopy data of water stress in tomato plants

  2024cites this paper
• Towards Tomato Plant Iron Stress Monitoring Through Bioimpedance and Circuit Analysis

  2023cites this paper
• Our sisters the plants? notes from phylogenetics and botany on plant kinship blindness

  2021cites this paper
• Broadening the scope of plant physiology: response to Mallatt et al.

  2021cites this paper