Molecular Basis to Integrate Microgravity Signals into the Photoperiodic Flowering Pathway in Arabidopsis thaliana under Spaceflight Condition

被引:8
|
作者
Xie, Junyan [1 ]
Wang, Lihua [1 ]
Zheng, Huiqiong [1 ]
机构
[1] Chinese Acad Sci, Ctr Excellence Mol Plant Sci, Shanghai 200032, Peoples R China
基金
中国国家自然科学基金;
关键词
spaceflight; microgravity; photoperiod; flowering; Arabidopsis thaliana; BRASSICA-RAPA L; GAMYB-LIKE GENES; TO-SEED GROWTH; STORAGE RESERVES; SPACE; TIME; PLANTS; TRANSCRIPTION; PERCEPTION; CYCLE;
D O I
10.3390/ijms23010063
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
Understanding the effects of spaceflight on plant flowering regulation is important to setup a life support system for long-term human space exploration. However, the way in which plant flowering is affected by spaceflight remains unclear. Here, we present results from our latest space experiments on the Chinese spacelab Tiangong-2, in which Arabidopsis wild-type and transgenic plants pFT::GFP germinated and grew as normally as their controls on the ground, but the floral initiation under the long-day condition in space was about 20 days later than their controls on the ground. Time-course series of digital images of pFT::GFP plants showed that the expression rhythm of FT in space did not change, but the peak appeared later in comparison with those of their controls on the ground. Whole-genome microarray analysis revealed that approximately 16% of Arabidopsis genes at the flowering stage changed their transcript levels under spaceflight conditions in comparison with their controls on the ground. The GO terms were enriched in DEGs with up-regulation of the response to temperature, wounding, and protein stabilization and down-regulation of the function in circadian rhythm, gibberellins, and mRNA processes. FT and SOC1 could act as hubs to integrate spaceflight stress signals into the photoperiodic flowering pathway in Arabidopsis in space.
引用
收藏
页数:18
相关论文
共 5 条
  • [1] The molecular basis of diversity in the photoperiodic flowering responses of Arabidopsis and rice
    Hayama, R
    Coupland, G
    PLANT PHYSIOLOGY, 2004, 135 (02) : 677 - 684
  • [2] SPL3/4/5 Integrate Developmental Aging and Photoperiodic Signals into the FT-FD Module in Arabidopsis Flowering
    Jung, Jae-Hoon
    Lee, Hyo-Jun
    Ryu, Jae Yong
    Park, Chung-Mo
    MOLECULAR PLANT, 2016, 9 (12) : 1647 - 1659
  • [3] Molecular basis of flowering under natural long-day conditions in Arabidopsis
    Song, Young Hun
    Kubota, Akane
    Kwon, Michael S.
    Covington, Michael F.
    Lee, Nayoung
    Taagen, Ella R.
    Cintron, Dianne Laboy
    Hwang, Dae Yeon
    Akiyama, Reiko
    Hodge, Sarah K.
    Huang, He
    Nguyen, Nhu H.
    Nusinow, Dmitri A.
    Millar, Andrew J.
    Shimizu, Kentaro K.
    Imaizumi, Takato
    NATURE PLANTS, 2018, 4 (10) : 824 - 835
  • [4] Molecular basis of flowering under natural long-day conditions in Arabidopsis
    Young Hun Song
    Akane Kubota
    Michael S. Kwon
    Michael F. Covington
    Nayoung Lee
    Ella R. Taagen
    Dianne Laboy Cintrón
    Dae Yeon Hwang
    Reiko Akiyama
    Sarah K. Hodge
    He Huang
    Nhu H. Nguyen
    Dmitri A. Nusinow
    Andrew J. Millar
    Kentaro K. Shimizu
    Takato Imaizumi
    Nature Plants, 2018, 4 : 824 - 835
  • [5] FHY3 and FAR1 Integrate Light Signals with the miR156-SPL Module-Mediated Aging Pathway to Regulate Arabidopsis Flowering
    Xie, Yurong
    Zhou, Qin
    Zhao, Yongping
    Li, Quanquan
    Liu, Yang
    Ma, Mengdi
    Wang, Baobao
    Shen, Rongxin
    Zheng, Zhigang
    Wang, Haiyang
    MOLECULAR PLANT, 2020, 13 (03) : 483 - 498