Recent Posts

The mechanism by which MYC2 regulates the termination of jasmonic acid signaling

Source: Institute of Genetics and Developmental Biology Published: 2019-01-11. Translated from the original. As an important plant hormone, jasmonic acid regulates plant defense responses and adaptive growth. When the plant is exposed to pests or other stresses, the active jasmonic…

New Teaching Tool: "Molecular Control of Plant Shoot Architecture"

We’re excited to announce the publication of The Plant Cell’s latest Teaching Tool, “Molecular Control of Plant Shoot Architecture,” by Agustin Zsögön and Lázaro E. P. Peres, available without subscription at Plantae.org. Manipulation of plant form and height has been instrumental in…

Master MYCs: MYC2, the jasmonate signaling ‘master switch’

To optimize their fitness in the field, plants need to respond rapidly, specifically and dynamically to an ever-changing and often hostile environment. By integrating external environmental cues with endogenous developmental programs, phytohormones play a critical role in the cross-talk between signal…

Local auxin biosynthesis is a key regulator of plant development ($) (Devel Cell)

Morphogenic gradients of auxin are essential for plant phenotypic plasticity. Polar auxin transport plays a central role in auxin maxima generation. The exquisite spatiotemporal expression patterns of auxin biosynthesis genes suggested that local sources of auxin may contribute to the formation of auxin…

CONSTITUTIVE TRIPLE RESPONSE 1 and PIN2 coordinately regulate indeterminate root growth (Plant Sci)

Méndez-Bravo et al. explored the mechanism for the dramatic phenotype of the ctr1 mutant (CONSTITUTIVE TRIPLE RESPONSE 1), which inhibits both cell division and elongation. In the ctr1-1 mutant background, auxin response is induced at the root tip and an increase in expression of the auxin transporter…

PID/WAG-mediated phosphorylation of PIN3 mediates polarity switches during gravitropism (Sci Reports)

Auxin distribution depends on the polar localization of PIN-FORMED or PIN proteins. Based on different development and environmental stimuli, PIN proteins switch polarity to redirect the auxin flux. Additionally, phosphorylation of PIN is required for its function. For instance, PIN3 phosphorylation…

A femtomolar-range suicide germination stimulant for the parasitic plant Striga hermonthica (Science)($)

Striga hermonthica (Striga) parasitizes a wide range of crops including sorghum and rice, mainly  in sub-Saharan Africa. This parasite decreases crop yields and results in billions of dollars in economic damage. Striga seeds are numerous and remain dormant in the soil until prompted to germinate by…

Review: Long distance signlaing in plant stress response (COPB)

To compensate for their lack of a nervous system, vascular plants have developed complex mechanisms to connect their organs and coordinate stress. Many different types of molecules are involved in long-distance signaling and must be integrated to maintain homeostasis. In this review, Takahashi and Shinozaki…

Uncovering the Steps Before: Sulfate Induces ABA Biosynthesis and Stomatal Closure

Plant stomatal aperture regulation via guard cells is an example of how plants dynamically process environmental signals to induce a physiological response. The drought stress hormone abscisic acid (ABA) is a well-characterized signal that induces stomatal closure, preventing water loss. ABA acts via…