EF8 is involved in photoperiodic flowering pathway and chlorophyll biogenesis in rice

2014 ◽  
Vol 33 (12) ◽  
pp. 2003-2014 ◽  
Author(s):  
Zhiming Feng ◽  
Long Zhang ◽  
Chunyan Yang ◽  
Tao Wu ◽  
Jia Lv ◽  
...  
Keyword(s):  
Photoperiodic Flowering ◽  
Flowering Pathway ◽  
Chlorophyll Biogenesis

scholarly journals Map-Based Cloning and Functional Analysis of YE1 in Rice, Which Is Involved in Light-Dependent Chlorophyll Biogenesis and Photoperiodic Flowering Pathway

2019 ◽  
Vol 20 (3) ◽  
pp. 758 ◽  
Author(s):  
Youlin Peng ◽  
Ting Zou ◽  
Lamei Li ◽  
Shiwen Tang ◽  
Qiao Li ◽  
...  
Keyword(s):  
Expression Patterns ◽  
Early Flowering ◽  
Yellow Leaf ◽  
Rhythmic Expression ◽  
Rice Mutant ◽  
Photoperiodic Flowering ◽  
Cloning Method ◽  
Flowering Pathway ◽  
Photoperiod Sensitive ◽  
Chlorophyll Biogenesis

Light is one of the most important environmental factors that affect many aspects of plant growth, including chlorophyll (Chl) synthesis and flowering time. Here, we identified a rice mutant, yellow leaf and early flowering (ye1), and characterized the gene YE1 by using a map-based cloning method. YE1 encodes a heme oxygenase, which is localized to the chloroplasts. YE1 is expressed in various green tissues, especially in leaves, with a diurnal-rhythmic expression pattern, and its transcripts is also induced by light during leaf-greening. The mutant displays decreased Chl contents with less and disorderly thylakoid lamellar layers in chloroplasts, which reduced the photosynthesis rate. The early flowering phenotype of ye1 was not photoperiod-sensitive. Furthermore, the expression levels of Chl biosynthetic genes were downregulated in ye1 seedlings during de-etiolation responses to light. We also found that rhythmic expression patterns of genes involved in photoperiodic flowering were altered in the mutant. Based on these results, we infer that YE1 plays an important role in light-dependent Chl biogenesis as well as photoperiodic flowering pathway in rice.

scholarly journals A Daylength Recognition Model of Photoperiodic Flowering

2021 ◽  
Vol 12 ◽  
Author(s):  
Xiaoying Wang ◽  
Peng Zhou ◽  
Rongyu Huang ◽  
Jianfu Zhang ◽  
Xinhao Ouyang
Keyword(s):  
Climate Change ◽  
Arabidopsis Thaliana ◽  
Oryza Sativa ◽  
Glycine Max ◽  
Plant Development ◽  
Global Climate Change ◽  
Global Climate ◽  
Photoperiodic Flowering ◽  
Flowering Pathway ◽  
Made In

The photoperiodic flowering pathway is crucial for plant development to synchronize internal signaling events and external seasons. One hundred years after photoperiodic flowering was discovered, the underlying core signaling network has been elucidated in model plants such as Arabidopsis (Arabidopsis thaliana), rice (Oryza sativa), and soybean (Glycine max). Here, we review the progress made in the photoperiodic flowering area and summarize previously accepted photoperiodic flowering models. We then introduce a new model based on daylength recognition by florigen. By determining the expression levels of the florigen gene, this model can assess the mechanism of daylength sensing and crop latitude adaptation. Future applications of this model under the constraints of global climate change are discussed.

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

2021 ◽  
Vol 23 (1) ◽  
pp. 63
Author(s):  
Junyan Xie ◽  
Lihua Wang ◽  
Huiqiong Zheng
Keyword(s):  
Time Course ◽  
Life Support ◽  
Protein Stabilization ◽  
Photoperiodic Flowering ◽  
Space Experiments ◽  
Whole Genome Microarray ◽  
Flowering Pathway ◽  
Stress Signals ◽  
Flowering Regulation ◽  
Response To Temperature

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.

scholarly journals FLOWERING HTH1 is involved in CONSTANS-mediated flowering regulation in Arabidopsis

2019 ◽  
Vol 62 (1) ◽  
Author(s):  
Soon Ae Sim ◽  
Su Gyeong Woo ◽  
Dae Yeon Hwang ◽  
Jin-Hong Kim ◽  
Seung Sik Lee ◽  
...  
Keyword(s):  
Subcellular Location ◽  
Day Length ◽  
Interacting Protein ◽  
Photoperiodic Flowering ◽  
Family Protein ◽  
Flowering Regulation ◽  
Delayed Flowering ◽  
The Right ◽  
Two Hybrid ◽  
Repression Domain

Abstract Flowering at the right time is essential for maximum reproductive fitness. In Arabidopsis thaliana, the CONSTANS (CO) protein facilitates the transition from the vegetative phase to the reproductive phase under long-day conditions. The formation of heterodimeric complexes between CO and DNA binding domain-containing transcription factors is important for the induction of day length-dependent flowering. Here, we report a myb-like helix turn helix (HTH) transcriptional regulator family protein as a new modulator of floral transition, which we have named FLOWERING HTH1 (FHTH1). We isolated FHTH1 as a CO-interacting protein by a yeast two-hybrid screen using an Arabidopsis transcription factor library. Our analysis showed that FHTH1 presented in the nucleus and the FHTH1-CO complex was formed in the same subcellular location. We also observed the expression of a FHTH1:GUS construct in the leaf vasculature, where CO exists. Transgenic plants overexpressing FHTH1 fused with the plant-specific repression domain SRDX showed a delayed flowering phenotype in long days, resembling the phenotype of the co mutant. Our results suggest that FHTH1 may contribute to CO-mediated photoperiodic flowering regulation.

scholarly journals FLOWERING BHLH transcriptional activators control expression of the photoperiodic flowering regulator CONSTANS in Arabidopsis

2012 ◽  
Vol 109 (9) ◽  
pp. 3582-3587 ◽  
Author(s):  
S. Ito ◽  
Y. H. Song ◽  
A. R. Josephson-Day ◽  
R. J. Miller ◽  
G. Breton ◽  
...  
Keyword(s):  
Transcriptional Activators ◽  
Photoperiodic Flowering ◽  
Flowering Regulator

scholarly journals Natural variation and CRISPR/Cas9‐mediated mutation in GmPRR37 affect photoperiodic flowering and contribute to regional adaptation of soybean

2020 ◽  
Vol 18 (9) ◽  
pp. 1869-1881 ◽  
Author(s):  
Liwei Wang ◽  
Shi Sun ◽  
Tingting Wu ◽  
Luping Liu ◽  
Xuegang Sun ◽  
...  
Keyword(s):  
Natural Variation ◽  
Photoperiodic Flowering ◽  
Regional Adaptation
Sign in / Sign up

Export Citation Format

Share Document