| 藻类逆境胁迫下信号传导途径的初步研究进展 |
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| 引用本文： | 张璇,臧晓南,张学成,鹿宁.藻类逆境胁迫下信号传导途径的初步研究进展[J].中国海洋大学学报(自然科学版),2012(Z1):116-123. |
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| 作者姓名： | 张璇 臧晓南 张学成 鹿宁 |
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| 作者单位： | 中国海洋大学海洋生命学院,海洋生物遗传育种教育部重点实验室 |
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| 基金项目： | 农业部公益性行业科研专项项目(200903030);高等学校博士学科点专项科研基金项目(新教师20070423011)资助 |
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| 摘 要： | 对目前藻类逆境胁迫下信号传导途径的主要研究进展进行了综述:(1)钙信号系统,藻类通过细胞内Ca2+的变化产生钙信号,Ca2+与钙调素等钙信号受体结合,进而影响钙调素结合蛋白等靶蛋白的活性,从而调控基因表达和生理反应;(2)磷脂酰肌醇信号系统,磷脂酰肌醇在磷脂酶的作用下,水解产生第二信使IP3与DAG,它们可以进一步激活离子通道或蛋白激酶,调节藻类的各种生理反应过程;(3)蛋白质的可逆磷酸化,通过藻类中蛋白质的磷酸化和脱磷酸化,传递信号,并使信号级联放大;(4)蓝藻的二元信号传导系统,蓝藻既具有类似细菌的二元传导系统,又具有真核生物的Ser/Thr或Tyr蛋白质激酶来行使信号传导功能;(5)NO,cAMP等其他信号分子也参与藻类的信号传导途径。
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| 关 键 词： | 藻类 逆境胁迫 信号传导途径 信号分子 |
Review of Signal Transduction Pathway of Algae to Environmental Stress |
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| ZHANG Xuan,ZANG Xiao-Nan,ZHANG Xue-Cheng,LU Ning.Review of Signal Transduction Pathway of Algae to Environmental Stress[J].Periodical of Ocean University of China,2012(Z1):116-123. |
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| Authors: | ZHANG Xuan ZANG Xiao-Nan ZHANG Xue-Cheng LU Ning |
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| Institution: | (Key Laboratory of Marine Genetics and Breeding,Ministry of Education,College of Marine Life Sciences,Ocean University of China,Qingdao 266003,China) |
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| Abstract: | This paper reviewed on the main signal transduction of algae responding to environmental stress:(1) Calcium signal system.Algae generated the signal by the change of calcium concentration.Calcium combines with calcium signaling receptor such as calmodulin,and then affects the activity of calmodulin binding protein,thereby regulates the gene expression and physiological response;(2) Phosphotidylinositol signal system.Under the action of phospholipase,phosphotidylinositol is hydrolyzed into IP3 and DAG,which can further activate ion channels or protein kinases and regulate the physiological reaction of algae;(3) Reversible protein phosphorylation.Under the action of protein kinase or protein phosphatase,the phosphorylation or dephosphorylation of protein is occurred,and the signal transduction is amplified;(4) Two-component signaling system of blue green-algae.The signal transduction system of blue green-algae is consisted of two-component signal transduction system like bacteria and eukaryotic serine/threonine kinases system;(5) NO,cAMP and other signal molecules also participate in algae signal transduction. |
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| Keywords: | Alga environmental stress signal transduction pathway signal molecule |
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