Recent Posts

Jasmonate biosynthesis arising from altered cell walls is prompted by turgor-driven mechanical compression (Sci. Advances)

Jasmonate (JA) coordinates plant development and response to a wide range of biotic and abiotic stresses. JA production is stimulated by wounding, which damages cell walls, and increased in plants carrying mutations in cellulose biosynthetic genes. Nevertheless, the intracellular events connecting mechanical…

Review: Thriving under stress: How plants balance growth and stress response (Devel. Cell)

What exactly is the growth/defense tradeoff? This review is an excellent place to ask. Zhang et al. review evidence that shows that it is much more than a competition for limiting resources – the plant actively responds to stress in ways that may slow growth but ultimately promote survival. The…

NO GAMETOPHORES 2 is a novel regulator of the 2D to 3D growth transition in the moss Physcomitrella patens (Curr. Biol.)

Three-dimensional (3D) growth was an essential evolutionary innovation that allowed the radiation and diversification of land plants. In most land plants the transition from two-dimensional (2D) to 3D growth takes place during embryo development and its disruption results in lethality, however, the…

SAURs protein antagonistically regulate a phosphatase activity during apical hook development and cotyledon opening (Plant Cell)

Upon germination in dark, plants adopt a strategy known as skotomorphogenesis, or etiolation, to protect the shoot apical meristem and cotyledon from damage while the seedling moves through the soil. The seedlings de-etiolate when they perceive light and the apical hook and cotyledon open. Wang et…

Spiral down: Rice plants adopt helical root growth under ammonium stress (Plant J.)

While ammonium ions (NH4+) serve as important sources of nitrogen nutrition, higher concentrations are toxic and inhibit plant growth and development. In an attempt to understand how roots of rice plant adapt to high concentrations of NH4+, Jia and colleagues found the roots coil and adopt a helical…

CLAVATA signaling ensures reproductive development in plants across thermal environments (Curr. Biol.)

Plant reproduction and development requires robust signaling pathways that integrate environmental queues such as temperature. In Arabidopsis, the formation of flower primordia from the inflorescence meristem (IM) depends on the proliferation/ differentiation balance and is regulated by auxin and the…

MSH1-induced heritable enhanced growth vigor through grafting is associated with the RdDM pathway in plants (Nature Comms.)

The ability of plants to adapt to diverse environments and environmental conditions has been attributed to phenotypic plasticity mediated by genetic and epigenetic changes. Through grafting experiments, small RNA has been shown to be a mobile molecule that can be transmitted long-distance via the vascular…

How to go quiet: CHT7 regulates cell cycle exit in Chlamydomonas (Plant Cell)

Many microbes enter a state of low metabolic activity, called quiescence, when the conditions for growth and division become unfavorable. The transition from active proliferation to quiescence involves a comprehensive restructuring of cellular metabolism, accumulation of storage compounds, and an orderly…

Go polar: Regulation of Rho GTPases by ARO proteins (Nature Plants)

Polar cell growth is a key feature in plant organs like root hairs, trichomes and pollen tubes. Kulich and co-workers have identified novel regulatory elements governing the polar growth of root hairs and trichomes in Arabidopsis thaliana. Studying a group of proteins named ARMADILLO REPEAT ONLY (ARO),…