水生生物学报2025，Vol.49Issue(5)：209-226,18.DOI:10.7541/2025.2024.0333
蓝藻应对缺铁环境的生理响应与信号转导机制研究进展
PROGRESS ON PHYSIOLOGICAL RESPONSE AND SIGNAL TRANSDUCTION MECHANISM OF CYANOBACTERIA IN IRON DEFICIENT ENVIRONMENT
摘要
Abstract
Cyanobacteria are one of the oldest photosynthetic oxygen evolving organisms on Earth and play a crucial role in global primary productivity,accounting for about a quarter of the world's total carbon sequestration.Iron,an essential trace element,is vital for the growth and reproduction of cyanobacteria and an important cofactor in many key physiological reactions.As photosynthetic organisms,cyanobacteria exhibit a higher demand for iron than other non-photosynthetic organisms to support photosynthetic electron transport and chlorophyll synthesis.Although iron is abun-dant in the Earth's environment,its bioavailability is low,which is an important factor limiting global primary produc-tivity.In order to solve the contradiction between their own high-speed rail demand and the lack of iron in the environ-ment,cyanobacteria have developed a unique iron deficiency adaptation mechanism during long-term evolution to meet their growth needs under iron limited conditions.This review summarized a series of physiological responses to iron deficiency stress and the absorption mechanisms of iron elements in cyanobacteria.It also provides an overview of the signal transduction mechanism by which cyanobacteria sense environmental iron concentration,and describes the molecular mechanisms of various transcription regulators in maintaining the intracellular iron homeostasis.关键词
缺铁适应/生理响应/信号转导/铁吸收机制/蓝藻Key words
Iron deficiency adaptation/Physiological response/Signal transduction/Iron absorption mechanism/Cyanobacteria分类
生物科学引用本文复制引用
席怡操,刘玲妹,雍成文,陈未中,姜海波..蓝藻应对缺铁环境的生理响应与信号转导机制研究进展[J].水生生物学报,2025,49(5):209-226,18.基金项目
国家自然科学基金(32170108、42188102和32470092) （32170108、42188102和32470092）
宁波市青年科技创新领军人才项目(2024QL060)资助[Supported by the National Natural Science Foundation of China(32170108,42188102 and 32470092) （2024QL060）
the Ningbo Youth Leading Talent Project(2024QL060)] （2024QL060）
