Deciphering early events involved in hyperosmotic stress-induced programmed cell death in tobacco BY-2 cells. (Special Issue: Oxidative stress and cell death.)

Monetti E.; Kadono T.; Tran D.; Azzarello E.; Arbelet-Bonnin D.; Biligui B.; Briand J.; Kawano T.; Mancuso S.; Bouteau F.

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Deciphering early events involved in hyperosmotic stress-induced programmed cell death in tobacco BY-2 cells. (Special Issue: Oxidative stress and cell death.)

机译：破译参与高渗透压诱导的烟草BY-2细胞程序性细胞死亡的早期事件。（特刊：氧化应激和细胞死亡。）

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Hyperosmotic stresses represent one of the major constraints that adversely affect plants growth, development, and productivity. In this study, the focus was on early responses to hyperosmotic stress- (NaCl and sorbitol) induced reactive oxygen species (ROS) generation, cytosolic Ca2+ concentration ([Ca2+]_cyt) increase, ion fluxes, and mitochondrial potential variations, and on their links in pathways leading to programmed cell death (PCD). By using BY-2 tobacco cells, it was shown that both NaCl- and sorbitol-induced PCD seemed to be dependent on superoxide anion (O₂.-) generation by NADPH-oxidase. In the case of NaCl, an early influx of sodium through non-selective cation channels participates in the development of PCD through mitochondrial dysfunction and NADPH-oxidase-dependent O₂.- generation. This supports the hypothesis of different pathways in NaCl- and sorbitol-induced cell death. Surprisingly, other shared early responses, such as [Ca2+]_cyt increase and singlet oxygen production, do not seem to be involved in PCD.

机译：高渗胁迫是对植物生长，发育和生产力产生不利影响的主要限制因素之一。在这项研究中，重点是对高渗胁迫（NaCl和山梨糖醇）诱导的活性氧（ROS）生成，胞质Ca 2 + 浓度（[Ca 2 + ] _{cyt ）增加，离子通量和线粒体电位变化，以及它们在导致程序性细胞死亡（PCD）的途径中的联系。通过使用BY-2烟草细胞，显示NaCl和山梨糖醇诱导的PCD似乎都依赖于NADPH生成的超氧阴离子（O _{2 。-） -氧化酶。在NaCl的情况下，钠通过非选择性阳离子通道的早期流入通过线粒体功能障碍和NADPH-氧化酶依赖性O _{2 参与PCD的发展。-代。这支持了NaCl和山梨糖醇诱导的细胞死亡中不同途径的假说。令人惊讶的是，其他共享的早期反应，例如[Ca 2 + ] _{cyt 的增加和单线态氧的产生，似乎并不参与PCD。}}}}

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来源
《Journal of Experimental Botany》 |2014年第5期|共15页
作者
Monetti E.; Kadono T.; Tran D.; Azzarello E.; Arbelet-Bonnin D.; Biligui B.; Briand J.; Kawano T.; Mancuso S.; Bouteau F.;
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正文语种 eng
中图分类植物学;
关键词
Calcium; hyperosmotic stress; mitochondria; NaCl; Nicotiana tabacum; non-selective cation channels; programmed cell death; reactive oxygen species;

机译：钙;高渗胁迫;线粒体;NaCl;烟草;非选择性阳离子通道;程序性细胞死亡;活性氧;

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1. Deciphering early events involved in hyperosmotic stress-induced programmed cell death in tobacco BY-2 cells. (Special Issue: Oxidative stress and cell death.) [J] . Monetti E., Kadono T., Tran D., Journal of Experimental Botany . 2014,第5期

机译：破译参与高渗透压诱导的烟草BY-2细胞程序性细胞死亡的早期事件。（特刊：氧化应激和细胞死亡。）
2. Polyamines and programmed cell death. (Special Issue: Oxidative stress and cell death.) [J] . Moschou P. N., Roubelakis-Angelakis K. A. Journal of Experimental Botany . 2014,第5期

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3. Protection of tobacco cells from oxidative copper toxicity by catalytically active metal-binding DNA oligomers. (Special Issue: Oxidative stress and cell death.) [J] . Iwase J., Furukawa H., Hiramatsu T., Journal of Experimental Botany . 2014,第5期

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6. Deciphering early events involved in hyperosmotic stress-induced programmed cell death in tobacco BY-2 cells [O] . Emanuela Monetti, Takashi Kadono, Daniel Tran, -1

机译：破译参与高渗透压诱导烟草BY-2细胞程序性细胞死亡的早期事件
7. Deciphering early events involved in hyperosmotic stress-induced programmed cell death in tobacco BY-2 cells [O] . Emanuela Monetti, Takashi Kadono, Daniel Tran, 2014

机译：在烟草BY-2细胞中解密涉及患有Hypermotic Colard诱导的程序性细胞死亡的早期事件
8. Role of the Wasp Venom Peptide Mastoparan in the Study of Mechanisms Involved in Cell Death. [R] . Eng, S. P. 1989

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Deciphering early events involved in hyperosmotic stress-induced programmed cell death in tobacco BY-2 cells. (Special Issue: Oxidative stress and cell death.)

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