Strigolactone

Strigolactones are a class of plant hormones that stimulate branching in plants and the growth of symbiotic arbuscular mycorrhizal fungi in the soil. They also impede shoot branching and trigger the germination of parasitic plant seeds.

Latest Research and Reviews

  • Research | | open

    Cleavage of strigolactone by the D14 receptor was assumed to produce an active intermediate that promotes signaling. Here the authors show that D14 activity is not dependent on cleavage activity and propose a new model whereby ligand hydrolysis serves to deactivate strigolactone signaling.

    • Yoshiya Seto
    • , Rei Yasui
    • , Hiromu Kameoka
    • , Muluneh Tamiru
    • , Mengmeng Cao
    • , Ryohei Terauchi
    • , Akane Sakurada
    • , Rena Hirano
    • , Takaya Kisugi
    • , Atsushi Hanada
    • , Mikihisa Umehara
    • , Eunjoo Seo
    • , Kohki Akiyama
    • , Jason Burke
    • , Noriko Takeda-Kamiya
    • , Weiqiang Li
    • , Yoshinori Hirano
    • , Toshio Hakoshima
    • , Kiyoshi Mashiguchi
    • , Joseph P. Noel
    • , Junko Kyozuka
    •  & Shinjiro Yamaguchi
  • Research |

    The plant F-box protein D3 has a C-terminal α-helix that switches between two conformational states, allowing the α/β hydrolase D14 to recruit the transcription repressor D53 for strigolactone-dependent degradation.

    • Nitzan Shabek
    • , Fabrizio Ticchiarelli
    • , Haibin Mao
    • , Thomas R. Hinds
    • , Ottoline Leyser
    •  & Ning Zheng
    Nature 563, 652-656
  • Research | | open

    Long mesocotyl is a critical trait for the application of rice deep direct seeding or mechanized dry seeding cultivation method. Here, Sun et al. find OsGSK2 is selected for mesocotyl length variation during domestication and it coordinates strigolactone and brassinosteroid signaling to determine mesocotyl elongation.

    • Shiyong Sun
    • , Tao Wang
    • , Linlin Wang
    • , Xiaoming Li
    • , Yancui Jia
    • , Chang Liu
    • , Xuehui Huang
    • , Weibo Xie
    •  & Xuelu Wang
  • Research |

    Strigolactones (SLs), key regulators of plant growth, are believed to mediate their responses through a proposed receptor (D14) that interacts with an F-box protein (D3) to form a D14–SCFD3 protein complex; here the perception of SLs by the D14–SCFD3 complex and the control of gene expression are linked by the finding that DWARF 53, a repressor protein of SL signalling, interacts with the D14–SCFD3 complex and is ubiquitinated and degraded in a SL-dependent manner.

    • Liang Jiang
    • , Xue Liu
    • , Guosheng Xiong
    • , Huihui Liu
    • , Fulu Chen
    • , Lei Wang
    • , Xiangbing Meng
    • , Guifu Liu
    • , Hong Yu
    • , Yundong Yuan
    • , Wei Yi
    • , Lihua Zhao
    • , Honglei Ma
    • , Yuanzheng He
    • , Zhongshan Wu
    • , Karsten Melcher
    • , Qian Qian
    • , H. Eric Xu
    • , Yonghong Wang
    •  & Jiayang Li
    Nature 504, 401-405

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