Reviews & Analysis

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  • The length of root hairs, a critical determinant of a plant's absorption capacity, is dictated by a translational pulse of the transcription factor RSL4. The intensity and duration of this pulse depends on the integration of endogenous and environmental information that tunes the phenotypic readout to the environment.

    • Wolfgang Schmidt
    News & Views
  • Most plant pattern recognition receptors induce immune responses by detecting molecular patterns typical to one group of microbes. A newly identified complex, on the other hand, monitors effector proteins widely distributed among bacteria, fungi and oomycetes, casting a new light on the evolution of pattern recognition in plants.

    • Naoto Shibuya
    • Yoshitake Desaki
    News & Views
  • CRISPR–Cas technology has been extensively applied to editing endogenous genes in plants for gene functional studies. New application of this technology to combating viral infection by destroying invading virus DNA has now become possible in plants.

    • Dandan Zhang
    • Zhenxiang Li
    • Jian-Feng Li
    News & Views
  • Large trees deliver many benefits to forest ecosystems, including the provision of habitats for other species and the storage of carbon. A synthesis of tree growth and mortality data from around the globe now suggests that under drought large trees are dying in higher numbers than smaller trees.

    • Michael G. Ryan
    News & Views
  • The involvement of Ca2+ signalling in Brassica self-incompatibility has been a contentious topic. New evidence suggests that stigmas use Ca2+ to signal to incompatible pollen to prevent pollen hydration and self-seed set. Moreover, this may involve a glutamate receptor.

    • Noni Franklin-Tong
    News & Views
  • Photosynthesis underpins life on earth and is often limited by the activity of the CO2-fixing enzyme Rubisco. New structural and functional insights into one of Rubisco's assembly chaperones offer opportunities to advance technologies tailored to improve Rubisco performance.

    • Robert Wilson
    • Spencer Whitney
    News & Views
  • The function and mechanism of the kinesin-14 protein family in plants remain largely obscure. Now, two studies suggest a role in long-distance transport, akin to dynein in animals. One shows that clustering of a moss kinesin-14 is required for cargo transport, the other that in rice a kinesin-14 translocates actin filaments along microtubules.

    • Ram Dixit
    News & Views
  • The maintenance of closed canopy conditions can delay the onset of warming-induced changes in plant community composition, according to an experimental manipulation of temperature, light and nutrient levels in a temperate forest understorey.

    • Michael Scherer-Lorenzen
    News & Views
  • GABA, a major brain neurotransmitter, was known to be important in plant development and stress responses. The discovery of an anion channel inhibited by GABA in wheat confirms its signalling role, indicating a convergent similarity between plants and animals.

    • Viktor Žárský
    News & Views
  • Proteaceae in southwestern Australia exhibit a range of adaptions that allow them to both acquire and utilize phosphorus from some of the most phosphorus-impoverished soils in the world. This Review explores these traits and discusses those which hold promise for crop improvement.

    • H. Lambers
    • P.M. Finnegan
    • M. Stitt
    Review Article
  • Plant researchers have speculated about the need for mechanisms to lock-down cell fate in late development. In PRC2 mutants, specialized, endoreplicated root hair cells differentiate normally but later revert to an embryo-like state.

    • Kenneth D. Birnbaum
    News & Views
  • Over-application of nitrogen fertilizer leads to environmental problems in modern agricultural systems. The mining of favourable gene variants for nitrogen-use efficiency is a fundamental way to tackle these dangers.

    • Dai-Yin Chao
    • Hong-Xuan Lin
    News & Views
  • Grasslands account for as much as one-third of the net primary production on land. Results from a network of experiments carried out on five continents suggest that two or more nutrients often constrain the productivity of these globally significant ecosystems.

    • Peter M. Vitousek
    News & Views
  • Hypoxia has long been studied in relation to anaerobic metabolism. It has now been shown to control development, acting as a cue to maintain the seedling's protective apical hook and a trigger of developmental decisions both before and after the plantlet emerges from the soil into the light.

    • Laurentius A. C. Voesenek
    • Julia Bailey-Serres
    News & Views
  • Auxin binds to its receptor within a ubiquitin ligase complex and promotes the binding and degradation of transcriptional repressors. The discovery of a cyclophilin isomerase enzyme critical in this process adds a new twist to auxin signalling.

    • Shih-Heng Su
    • William M. Gray
    • Patrick H. Masson
    News & Views
  • One of the world's most important staple crops, the sweet potato, is a naturally transgenic plant that was genetically modified thousands of years ago by a soil bacterium. This surprising discovery may influence the public view of GM crops.

    • Jonathan Jones
    News & Views
  • Plant defence against pathogens requires energy, which is provided by photosynthesis. But in addition to this indirect supply role, the photosynthetic light reaction is an active player in fighting off bacteria.

    • Vera Göhre
    News & Views