Recent Posts

Review: Role of blue and red light in stomatal dynamic behaviour (J Exp Bot)

Guard cells are extremely sensitive and dynamic, and their behaviour controls rates of gas exchange and transpiration, which affect evaporative cooling and transport in the xylem. Matthews et al. review the roles of light signalling pathways in guard cell responses. Cues that control guard cell ion channels…

Review: Surface sensor systems in plant immunity (Plant Physiol)

The first line of defense is detection. Plants have numerous cell-surface receptor proteins (Pattern Recognition Receptors, PRRs) that recognize potentially harmful pathogens as well as endogenous molecules that suggest damage, known as Damage Associated Molecular Patterns or DAMPS and phytocytokines…

Plants make galls to accommodate foreigners: some are friends most are foes (New Phytol)

Gall formation by plants is a commonly-seen phenomenon that occurs in response to foreign entities (here called “gall-inducers”) such as viruses, bacteria, fungi, nematodes, etc. In this review Harris and Pitzschke set out criteria for what is and is not a gall; by definition the gall is a developmental…

RGF1 controls root meristem size through ROS signaling (Nature)

Stem cells are maintained in the stem-cell niche by intercellular interactions and signaling networks in which a peptide hormone, the root meristem growth factor 1 (RGF1), is involved. RGF1 is also important in the control of the size of the meristematic zone and in the stability of the PLETHORA (PLT)…

Review. Brassinosteroids: Multi-dimensional regulators of plant growth, development, and stress responses (Plant Cell)

It’s been fifty years since the existence of brassinosteroids was shown, and about thirty since the awesome power of Arabidopsis genetics started to reveal the genes involved in its synthesis, perception and signaling. Nolan et al. review the highlights of brassinosteroid research and also more recent…

Review: The role of peptides cleaved from protein precursors in eliciting plant stress reactions (New Phytol)

Although the first signaling peptide identified in plants, systemin, is involved in stress responses, developmentally important peptide signals have largely occupied the limelight. This Tansley Review by Chen et al. summarizes recent insights into peptides with a role in stress responses: wounding, pathogen…

Plant Science Research Weekly: October 18

Guest Editor : Suresh Damodaran I am a postdoctoral research associate in Dr. Lucia Strader’s lab at WUSTL. My primary area of interest is understanding the role of plant hormones in development. I completed my graduate degree in Dr. Sen Subramanian’s lab at SDSTATE.  Twitter: @SureshDamod   Design…

Insect herbivory selects for volatile-mediated plant-plant communication ($) (Current Biology)

Plants release volatile organic compounds (VOCs) in response to insect herbivory. The potential for VOCs to serve as diffusible signals has long been recognized. For example, VOCs can signal neighbors to prime for defense, signal distant parts of the emitting plant, and even attract predatory insects…

A CLE–SUNN module regulates strigolactone content and symbiosis (Nature Plants)

The symbiosis between plants and arbuscular mycorrhizal fungi is conditional. Plants that are limited for phosphate release strigolactones into the soil, promoting changes in the fungi that facilitate the symbiosis. Müller et al. found that a Medicago gene encoding a CLE peptide, MtCLE53, is induced…