Related Experiment Video
Updated: Sep 19, 2025

An Optogenetic Method to Control and Analyze Gene Expression Patterns in Cell-to-cell Interactions
Published on: March 22, 2018
Identification and characterization of two transcription factors in Haematococcus pluvialis responding to blue light
Yulin Cui1, Xinyu Zou1, Wei Xing2
1School of Pharmacy, Binzhou Medical University, Yantai 264003 Shandong, China.
Abstract:
To investigate blue light-induced astaxanthin accumulation in Haematococcus pluvialis, this study first identified eight potential cis-acting elements (BLE1 to BLE8) of the genes involved in the astaxanthin synthesis pathway that may respond to blue light signals, and then screened and characterized two corresponding transcription factors (TFs), HpZF and HpMYB. In particular, HpZF and HpMYB were specifically bound to BLE7 and BLE3, respectively. To further determine the role of two TFs in response to blue light signals, they were expressed in Schizochytrium sp. and led to a significant increase in astaxanthin level, with HpMYB having a greater impact on the Schizochytrium transcriptome, but no response to blue light induction. The present study provides a novel direction for exploring the effect of blue light on astaxanthin synthesis at the molecular level and set up the foundation for the comprehensive development of astaxanthin resources.
More Related Videos
Related Concept Videos
Gene Regulation in Microbial Communities: Quorum Sensing
General Transcription Factors
Photoreceptors and Plant Responses to Light
Cell Signaling in Plants
Channel Rhodopsins
Rhodopsins belong to the family of cell surface proteins called G-protein coupled receptors,...
Global Regulatory Systems

