鉴定和表征两种转录因子在黑马球菌 pluvialis 响应蓝光信号
Yulin Cui1, Xinyu Zou1, Wei Xing2
1School of Pharmacy, Binzhou Medical University, Yantai 264003 Shandong, China.
Bioresource technology
|June 2, 2025
概括
这项研究确定了在Haematococcus pluvialis中对蓝光的反应中调节阿斯丁合成的转录因子 (TF). 当在其他生物体表达时,这些TF增强了阿斯塔克桑的产生.
科学领域:
- * 生物技术和分子生物学
- *生理学和藻类生物技术
背景情况:
- *阿斯塔克桑丁是一种有价值的胡卜素,主要由微藻合成,例如Pluvialis.
- *环境因素,如光线,显著影响阿斯塔克桑丁的积累,但潜在的分子机制尚未完全理解.
研究的目的:
- * 为了阐明蓝光诱导的阿斯塔克桑丁在Haematococcus pluvialis中的积累的分子机制.
- * 在蓝光条件下识别和描述参与调节素生物合成的关键转录因子 (TFs).
主要方法:
- * 在阿斯塔克桑丁合成基因中识别了潜在的蓝光响应性cis-acting元素 (BLEs).
- *对与这些元素结合的转录因子 (HpZF和HpMYB) 的选和表征.
- * 在Schizochytrium sp.中发现的TFs的异质表达. 评估它们对阿斯塔克桑水平的功能影响.
主要成果:
- *发现了8种对蓝光有反应的潜在的cis-acting元素 (BLE1-BLE8).
- * 两种转录因子HpZF和HpMYB的特征是,HpZF与BLE7结合,HpMYB与BLE3结合.
- * 在Schizochytrium sp.中hpZF和hpMYB的异构表达. 显著增加了阿斯塔克桑的积累,HpMYB对转录组表现出更明显的影响.
结论:
- *HpZF和HpMYB在调节阿斯塔山丁合成中起着至关重要的作用,特别是在响应蓝光信号时.
- * 这项研究为了解蓝光对阿斯塔克桑产生的影响提供了分子基础.
- * 已识别的TF为微藻生物技术中提高阿斯塔山丁产量提供了潜在的目标.
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