Plant sciences

  • Article |

    Cryo-electron microscopy structures of the photosystem I–NADH dehydrogenase-like supercomplex in barley provide structural details to elucidate the functions and regulation of photosystem I-dependent cyclic electron transport in chloroplasts.

    • Liangliang Shen
    • , Kailu Tang
    •  & Xing Zhang
  • Article
    | Open Access

    Whole-genome sequencing of 3,171 cultivated and 195 wild chickpea accessions is used to construct a chickpea pan-genome, providing insight into chickpea evolution and enabling breeding strategies that could improve crop productivity.

    • Rajeev K. Varshney
    • , Manish Roorkiwal
    •  & Xin Liu
  • Article
    | Open Access

    In Arabidopsis thaliana, downregulation of the floral repressor FLC in response to cold occurs through a mechanism in which the FLC activator FRIGIDA is sequestered into biomolecular condensates away from the FLC promoter.

    • Pan Zhu
    • , Clare Lister
    •  & Caroline Dean
  • Article
    | Open Access

    Auxin induces transmembrane-kinase-dependent activation of H+-ATPase in the plasma membrane through phosphorylation of its penultimate threonine residue, promoting apoplastic acidification and hypocotyl cell elongation in Arabidopsis.

    • Wenwei Lin
    • , Xiang Zhou
    •  & Zhenbiao Yang
  • Article |

    Global inverse modelling of plant water acquisition depth and isotope-based plant water use estimates demonstrate globally prevalent use of precipitation from distant sources, and that water-stressed ecosystems are well suited to using past and remote precipitation.

    • Gonzalo Miguez-Macho
    •  & Ying Fan
  • Article |

    Modelling suggests that the Montreal Protocol may be mitigating climate change by protecting the land carbon sink, as well as by protecting the ozone layer and reducing greenhouse gas emissions.

    • Paul J. Young
    • , Anna B. Harper
    •  & Rolando R. Garcia
  • Article |

    Analysis of recurved cupules from a newly discovered Early Cretaceous silicified peat in Inner Mongolia, China and comparison with other potentially related Mesozoic plant fossils provides insight into the origins of angiosperms.

    • Gongle Shi
    • , Fabiany Herrera
    •  & Peter R. Crane
  • Article
    | Open Access

    A genetically encoded sensor for the quantitative visualization of auxin distribution in plants enables real-time monitoring of its uptake and clearance by individual cells and within cellular compartments.

    • Ole Herud-Sikimić
    • , Andre C. Stiel
    •  & Gerd Jürgens
  • Article |

    Relationships between leaf size and vein architecture in more than 1,700 grass species worldwide show that grasses native to colder and drier climates have shorter and narrower leaves that provide them with physiological advantages.

    • Alec S. Baird
    • , Samuel H. Taylor
    •  & Lawren Sack
  • Article |

    In Arabidopsis, phosphorylation of EIN2 by TOR kinase in the presence of glucose prevents the nuclear localization of EIN2, showing that the glucose–TOR–EIN2 axis regulates the transcriptome independently of ethylene signalling pathways.

    • Liwen Fu
    • , Yanlin Liu
    •  & Yan Xiong
  • Article
    | Open Access

    The genome of the biofuel crop switchgrass (Panicum virgatum) reveals climate–gene–biomass associations that underlie adaptation in nature and will facilitate improvements of the yield of this crop for bioenergy production.

    • John T. Lovell
    • , Alice H. MacQueen
    •  & Jeremy Schmutz
  • Article |

    OsTCP19 is a modulator of the tillering response to nitrogen in rice, and introgression of an allele of OsTCP19 associated with a high tillering response into modern rice cultivars markedly improves their nitrogen-use efficiency.

    • Yongqiang Liu
    • , Hongru Wang
    •  & Chengcai Chu
  • Article
    | Open Access

    Chromosome-scale sequence assemblies of 20 diverse varieties of barley are used to construct a first-generation pan-genome, revealing previously hidden genetic variation that can be used by studies aimed at crop improvement

    • Murukarthick Jayakodi
    • , Sudharsan Padmarasu
    •  & Nils Stein
  • Article
    | Open Access

    Comparison of multiple genome assemblies from wheat reveals extensive diversity that results from the complex breeding history of wheat and provides a basis for further potential improvements to this important food crop.

    • Sean Walkowiak
    • , Liangliang Gao
    •  & Curtis J. Pozniak
  • Article |

    Genes encoding the class A auxin-response factor group of plant transcriptional activators reside in constitutively open chromatin, enabling their continual regulation by transcriptional repressors to modulate auxin signalling throughout development.

    • Jekaterina Truskina
    • , Jingyi Han
    •  & Teva Vernoux
  • Article |

    Experiments using an ecologically realistic 185-member bacterial synthetic community in the root system of Arabidopsis reveal that Variovorax bacteria can influence plant hormone levels to reverse the inhibitory effect of the community on root growth.

    • Omri M. Finkel
    • , Isai Salas-González
    •  & Jeffery L. Dangl
  • Article |

    Dimethoxy-1,4-benzoquinone signalling occurs in Arabidopsis and in the root parasite Phtheirospermum japonicum via increases in cytosolic Ca2+ concentration mediated by the leucine-rich-repeat receptor-like kinase CARD1 in Arabidopsis, or by its homologues in P. japonicum.

    • Anuphon Laohavisit
    • , Takanori Wakatake
    •  & Ken Shirasu
  • Article |

    A study in Arabidopsis thaliana shows that the immune receptor-associated cytosolic kinase BIK1 phosphorylates OSCA1.3 and identifies OSCA1.3 as the pathogen-responsive Ca2+-permeable channel that regulates stomatal closure.

    • Kathrin Thor
    • , Shushu Jiang
    •  & Cyril Zipfel
  • Article |

    The adaptability of the plant Arabidopsis thaliana to different temperatures is regulated by the ability of its ELF3 protein to undergo liquid–liquid phase separation, in a manner that is dependent on the protein’s prion-like domain.

    • Jae-Hoon Jung
    • , Antonio D. Barbosa
    •  & Philip A. Wigge
  • Article |

    Structural determination of the salicylic-acid-binding core of Arabidopsis NPR4 sheds light on the mechanisms through which this plant hormone interacts with its receptors, providing insights that are of potential use in engineering enhanced immunity.

    • Wei Wang
    • , John Withers
    •  & Ning Zheng
  • Article |

    Discovery of a near-complete colchicine biosynthetic pathway enables the engineered production of the tropolone-containing alkaloid N-formyldemecolcine from amino acid precursors in Nicotiana benthamiana.

    • Ryan S. Nett
    • , Warren Lau
    •  & Elizabeth S. Sattely
  • Article |

    The authors find that slow plant growth at low temperatures during winter reduces dilution of the transcription factor NTL8, which allows slow accumulation of NTL8 and thus the gradual increase in transcription of VIN3—a gene involved in memory of cold exposure.

    • Yusheng Zhao
    • , Rea L. Antoniou-Kourounioti
    •  & Martin Howard
  • Article |

    A systems-level map of the Arabidopsis hormone signalling network, comprising more than 2,000 binary protein–protein interactions, reveals hundreds of interpathway contact points, many of which mediate crosstalk between different hormone pathways.

    • Melina Altmann
    • , Stefan Altmann
    •  & Pascal Falter-Braun
  • Article |

    Many of the molecular targets of strigolactones—plant hormones involved in development and in interactions with symbiotic and parasitic organisms—are uncovered, revealing how strigolactones function and an intriguing role for self-regulation of a downstream transcription factor.

    • Lei Wang
    • , Bing Wang
    •  & Jiayang Li
  • Article |

    The detection of microorganism-associated ligands by plant cells activates a signalling cascade in which the kinase BIK1 is monoubiquinated, released from the FLS2–BAK1 complex, and internalized by endocytosis.

    • Xiyu Ma
    • , Lucas A. N. Claus
    •  & Libo Shan
  • Article |

    Mutations in genes involved in immune signalling and vesicle trafficking cause defects in the leaf microbiome of Arabidopsis thaliana that result in damage to leaf tissues, suggesting mechanisms by which terrestrial plants control the level and diversity of endophytic phyllosphere microbiota.

    • Tao Chen
    • , Kinya Nomura
    •  & Sheng Yang He
  • Article |

    FERONIA prevents polyspermy in Arabidopsis by enabling pectin-stimulated nitric oxide accumulation at the filiform apparatus after the first pollen tube arrives, which disengages LURE1 chemoattraction to prevent late-arriving pollen tubes from entering the ovule.

    • Qiaohong Duan
    • , Ming-Che James Liu
    •  & Alice Y. Cheung
  • Article |

    A quantitative atlas of the transcriptomes, proteomes and phosphoproteomes of 30 tissues of the model plant Arabidopsis thaliana provides a valuable resource for plant research.

    • Julia Mergner
    • , Martin Frejno
    •  & Bernhard Kuster
  • Article |

    Phenotypic selection analysis is used to estimate the type and strength of selection that acts on more than 15,000 transcripts in rice (Oryza sativa), which provides insight into the adaptive evolutionary role of selection on gene expression.

    • Simon C. Groen
    • , Irina Ćalić
    •  & Michael D. Purugganan
  • Article
    | Open Access

    The genome of the tropical blue-petal water lily Nymphaea colorata and the transcriptomes from 19 other Nymphaeales species provide insights into the early evolution of angiosperms.

    • Liangsheng Zhang
    • , Fei Chen
    •  & Haibao Tang
  • Article |

    RITF1, a newly identified plant transcription factor, links signalling through the peptide hormone RGF1 to the balance of reactive oxygen species and thereby enhances the stability of another transcription factor, PLETHORA2, a master regulator of root stem cells.

    • Masashi Yamada
    • , Xinwei Han
    •  & Philip N. Benfey