Salt stress and hyperosmotic stress regulate the expression of different sets of genes in Synechocystis sp PCC 6803
Salt stress and hyperosmotic stress regulate the expression of different sets of genes in Synechocystis sp PCC 6803
复制标题
DOI：
10.1006/bbrc.2001.6201
复制
发表时间：
2002-01-11
影响因子：
3.1
通讯作者：
Murata, N
中科院分区：
文献类型：
--
作者：
Kanesaki, Y;Suzuki, I;Murata, N
微生物对环境胁迫的适应与各种基因的表达密切相关。本文报道了盐胁迫和高渗胁迫对聚球藻细胞质体积和基因表达的不同影响。PCC 6803。DNA芯片分析表明，盐胁迫强烈诱导了一些核糖体蛋白基因的表达。高渗胁迫强烈诱导3-酮酰基载体蛋白还原酶基因和稀有脂蛋白A基因的表达，高渗胁迫诱导的基因包括热休克蛋白基因和葡萄糖甘油合成酶基因。我们还发现，每种应激都诱导了一些未知功能蛋白质的基因。我们的发现表明，聚球藻将盐胁迫和高渗透胁迫识别为不同的刺激，尽管对每种形式的胁迫的共同反应机制也可能有助于基因表达。(C)2002年爱思唯尔科学公司。
Acclimation of microorganisms to environmental stress is closely related to the expression of various genes. We report here that salt stress and hyperosmotic stress have different effects on the cytoplasmic volume and gene expression in Synechocystis sp. PCC 6803. DNA microarray analysis indicated that salt stress strongly induced the genes for some ribosomal proteins. Hyperosmotic stress strongly induced the genes for 3-ketoacyl-acyl carrier protein reductase and rare lipoprotein A. Genes whose expression was induced both by salt stress and by hyperosmotic stress included those for heat-shock proteins and the enzymes for the synthesis of glucosylglycerol. We also found that each kind of stress induced a number of genes for proteins of unknown function. Our findings suggest that Synechocystis recognizes salt stress and hyperosmotic stress as different stimuli, although mechanisms common to the responses to each form of stress might also contribute to gene expression. (C) 2002 Elsevier Science.