Salt stress causes peroxisome proliferation, but inducing peroxisome proliferation does not improve NaCl tolerance in Arabidopsis thaliana.
Salt stress causes peroxisome proliferation, but inducing peroxisome proliferation does not improve NaCl tolerance in Arabidopsis thaliana.
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DOI：
10.1371/journal.pone.0009408
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发表时间：
2010-02-24
期刊：
影响因子：
3.7
通讯作者：
Baker A
中科院分区：
文献类型：
--
作者：
Mitsuya S;El-Shami M;Sparkes IA;Charlton WL;Lousa Cde M;Johnson B;Baker A
过氧化物酶体膜蛋白 PEX11 家族已被证明参与植物、动物和酵母细胞中过氧化物酶体大小和数量的调节。我们和其他人之前曾提出，非生物胁迫导致的过氧化物酶体增殖可能在植物胁迫反应中很重要，最近有报道称，一些水稻 PEX11 基因在非生物胁迫响应中上调。我们试图检验这样的假设：通过 PEX11 家族成员 PEX11e 的过度表达来促进拟南芥中的过氧化物酶体增殖，从而增强对盐胁迫的抵抗力。我们可以证明盐胁迫对 PEX11e 的上调，以及 PEX11e 过度表达和盐胁迫导致的过氧化物酶体数量增加，但是我们的实验未能发现 PEX11e 过度表达与过氧化物酶体代谢活性增加或对盐胁迫的抵抗力之间的相关性。这表明虽然过氧化物酶体增殖可能是盐胁迫的结果，但它并不影响拟南芥植物耐受盐分条件的能力。
The PEX11 family of peroxisome membrane proteins have been shown to be involved in regulation of peroxisome size and number in plant, animals, and yeast cells. We and others have previously suggested that peroxisome proliferation as a result of abiotic stress may be important in plant stress responses, and recently it was reported that several rice PEX11 genes were up regulated in response to abiotic stress. We sought to test the hypothesis that promoting peroxisome proliferation in Arabidopsis thaliana by over expression of one PEX11 family member, PEX11e, would give increased resistance to salt stress. We could demonstrate up regulation of PEX11e by salt stress and increased peroxisome number by both PEX11e over expression and salt stress, however our experiments failed to find a correlation between PEX11e over expression and increased peroxisome metabolic activity or resistance to salt stress. This suggests that although peroxisome proliferation may be a consequence of salt stress, it does not affect the ability of Arabidopsis plants to tolerate saline conditions.
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影响因子：
5.3
作者：
Li, XL;Baumgart, E;Gould, SJ
通讯作者：
Gould, SJ
DOI：
10.1073/pnas.97.7.3718
发表时间：
2000-03-28
影响因子：
11.1
作者：
Cutler, SR;Ehrhardt, DW;Somerville, CR
通讯作者：
Somerville, CR
影响因子：
7.2
作者：
Clough, SJ;Bent, AF
通讯作者：
Bent, AF
影响因子：
4.3
作者：
DEFELIPE, MR;LUCAS, MM;POZUELO, JM
通讯作者：
POZUELO, JM
影响因子：
7.4
作者：
Desai, Mintu;Hu, Jianping
通讯作者：
Hu, Jianping