Volume 3 Issue 7 July 2017

Volume 3 Issue 7

Trouble brewing

Ethiopian coffee farming faces major challenges in the decades to come, not least due to climate change. Significant resilience, and even a substantial increase in coffee production area, could be acheived by precise and timely relocation of coffee-growing areas. But longer-term prospects are less optimistic.

See Nature Plants 3, 17081 (2017).

Image: A. Davies, Cover Design: L. Heslop

Editorial

  • Editorial |

    Science is a competitive business and in any competition there can be ‘shortcuts’ to success. Transparency is the only way to guarantee that research results can be trusted more than some sporting achievements.

Research Highlights

News & Views

  • News and Views |

    A high-quality sunflower genome provides insight into Asterid genome evolution. Moreover, integrative analyses based on quantitative genetics, expression and diversity data uncover the gene networks and candidate genes for oil metabolism and flowering time, two important agronomic traits for sunflowers.

    • Sébastien Renaut
  • News and Views |

    The nitrate signalling pathway now has a backbone. CPK calcium-dependent kinases are the long-awaited molecular link between major players in this pathway, the membrane-located nitrate transceptor NRT1.1 and the NLP transcription factors.

    • Gabriel Krouk
  • News and Views |

    Plants defend themselves from invading viruses using RNA silencing. However, plant viruses try to spoil this defensive mechanism by expressing one or more proteins that act as RNA silencing suppressors. One such protein spoils plant defence by transporting the silencing signal into the peroxisomes to avoid its systemic spread.

    • José-Antonio Daròs

Reviews

  • Perspective |

    Before maize-based agriculture, there existed in eastern North America a crop system that is now only known from archaeological data. Present research is exploring whether these crops, which sustained ancient societies for millennia, can be re-domesticated.

    • Natalie G. Mueller
    • , Gayle J. Fritz
    • , Paul Patton
    • , Stephen Carmody
    •  & Elizabeth T. Horton
  • Review Article |

    A Review Article highlights knowledge of miRNA function in orchestrating distinct agronomic traits by summarizing recent functional analyses of 65 miRNAs in 9 major crops and discusses the potential application of miRNAs as a tool in crop improvement.

    • Jiuyou Tang
    •  & Chengcai Chu

Research

  • Article |

    Modelling and remote sensing predict that near-future climate change could make 41–61% of the growing area of coffee in Ethiopia unusable. However, relocation of coffee areas and forest conservation could see coffee farming areas increase fourfold.

    • Justin Moat
    • , Jenny Williams
    • , Susana Baena
    • , Timothy Wilkinson
    • , Tadesse W. Gole
    • , Zeleke K. Challa
    • , Sebsebe Demissew
    •  & Aaron P. Davis
  • Letter |

    In response to drought, acetate accumulates endogenously through redirection of metabolic fluxes, and stimulates jasmonate pathways controlling Arabidopsis drought tolerance. Application of exogenous acetic acid alone increases drought tolerance of major crops such as maize, wheat and rice.

    • Jong-Myong Kim
    • , Taiko Kim To
    • , Akihiro Matsui
    • , Keitaro Tanoi
    • , Natsuko I. Kobayashi
    • , Fumio Matsuda
    • , Yoshiki Habu
    • , Daisuke Ogawa
    • , Takuya Sakamoto
    • , Sachihiro Matsunaga
    • , Khurram Bashir
    • , Sultana Rasheed
    • , Marina Ando
    • , Hiroko Takeda
    • , Kanako Kawaura
    • , Miyako Kusano
    • , Atsushi Fukushima
    • , Takaho A. Endo
    • , Takashi Kuromori
    • , Junko Ishida
    • , Taeko Morosawa
    • , Maho Tanaka
    • , Chieko Torii
    • , Yumiko Takebayashi
    • , Hitoshi Sakakibara
    • , Yasunari Ogihara
    • , Kazuki Saito
    • , Kazuo Shinozaki
    • , Alessandra Devoto
    •  & Motoaki Seki
  • Letter |

    How plants reject foreign pollen remains elusive. Now, it is found that the recognition between two proteins encoded by genes duplicated from pollen–pistil recognition loci causes intraspecific unilateral incompatibility in Brassica rapa.

    • Yoshinobu Takada
    • , Kohji Murase
    • , Hiroko Shimosato-Asano
    • , Takahiro Sato
    • , Honoka Nakanishi
    • , Keita Suwabe
    • , Kentaro K. Shimizu
    • , Yong Pyo Lim
    • , Seiji Takayama
    • , Go Suzuki
    •  & Masao Watanabe
  • Article |

    High-resolution images and tomography show unprecedented 3D structures of plasmodesmata. In cells just post-cytokinesis, plasmodesmata do not have a visible cytoplasmic sleeve but still conduct cell-to-cell movement of micro- and macromolecules.

    • William J. Nicolas
    • , Magali S. Grison
    • , Sylvain Trépout
    • , Amélia Gaston
    • , Mathieu Fouché
    • , Fabrice P. Cordelières
    • , Karl Oparka
    • , Jens Tilsner
    • , Lysiane Brocard
    •  & Emmanuelle M. Bayer
  • Article |

    The evening complex coordinates plant growth and environmental signalling with the circadian clock. Here, a comprehensive dataset of direct transcriptional targets of the evening complex uncovers a high-quality global regulatory network.

    • Daphne Ezer
    • , Jae-Hoon Jung
    • , Hui Lan
    • , Surojit Biswas
    • , Laura Gregoire
    • , Mathew S. Box
    • , Varodom Charoensawan
    • , Sandra Cortijo
    • , Xuelei Lai
    • , Dorothee Stöckle
    • , Chloe Zubieta
    • , Katja E. Jaeger
    •  & Philip A. Wigge
  • Letter |

    A new plant virus offensive strategy, in which defensive small RNAs are suppressed through peroxisomal import in Arabidopsis, is identified using peanut clump virus. This novel pathogenic strategy may also have counterparts in other plant and animal viruses.

    • M. Incarbone
    • , A. Zimmermann
    • , P. Hammann
    • , M. Erhardt
    • , F. Michel
    •  & P. Dunoyer
  • Article |

    In plants, photosystem II forms supercomplexes of core and light-harvesting complexes. Cryo-electron microscopy and single-particle analysis provides a 3D structure of the supercomplex from Arabidopsis at 5.3 Å resolution.

    • Laura S. van Bezouwen
    • , Stefano Caffarri
    • , Ravindra S. Kale
    • , Roman Kouřil
    • , Andy-Mark W. H. Thunnissen
    • , Gert T. Oostergetel
    •  & Egbert J. Boekema

Corrections