Regulation of tomato lateral root development by carbon monoxide and involvement in auxin and nitric oxide.
Regulation of tomato lateral root development by carbon monoxide and involvement in auxin and nitric oxide.
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DOI：
10.1093/jxb/ern194
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发表时间：
2008
影响因子：
6.9
通讯作者：
Yang ZM
中科院分区：
文献类型：
--
作者：
Guo K;Xia K;Yang ZM
一氧化碳（CO）是生物体内的一种内源性气体分子。尽管它被认为是一种致命的气体，但最近的研究表明，它是调节各种生物过程的最重要的细胞成分之一。然而，CO是否调节植物形态或发育模式的生理过程在很大程度上是未知的。本文报道了外源CO对番茄侧根形成的促进作用。番茄血红素加氧酶-1（LeHO-1），细胞内CO的酶源分析支持LR发展的CO刺激。结果表明，LeHO-1蛋白和转录物的量增加平行于LR的发展。此外，LeHO-1功能丧失型番茄突变体yg-2表现出LR发育受损的表型。yg-2的表型可以通过CO处理恢复。由于生长素是LR启动所需的，NO被证明是LR发展的介体，CO与生长素和NO的相关性进行了测试。我们的分析表明，CO的行动被阻断生长素运输抑制剂N-1-naphthylphthalamic acid和NO清除剂cPTIO，分别。此外，全苗IAA测定表明，CO处理提高了番茄各组织中的总体IAA水平。番茄根暴露于CO也增强了细胞内NO的产生。这些结果表明，CO在控制番茄根的结构变化中起着至关重要的作用。
Carbon monoxide (CO) is an endogenous gaseous molecule in organisms. Despite its reputation as a lethal gas, recent studies have shown that it is one of the most essential cellular components regulating a variety of biological processes. However, whether CO regulates physiological processes of morphological or developmental patterns in plants is largely unknown. In this paper, the observation that exogenous CO was able to promote the formation of tomato lateral roots (LR) is described. The CO stimulation of LR development was supported by analysis of tomato haem oxygenase-1 (LeHO-1), an enzymatic source of intracellular CO. It is shown that the amount of LeHO-1 proteins and transcripts increased parallel to the LR development. In addition, LeHO-1 loss-of-function tomato mutant yg-2 showed a phenotype of impaired LR development. The phenotype of yg-2 could be restored by treatment with CO. Since auxin is required for LR initiation and NO is shown to be a mediator for LR development, the correlation of CO with auxin and NO was tested. Our analysis revealed that the action of CO was blocked by the auxin transport inhibitor N-1-naphthylphthalamic acid and the NO scavenger cPTIO, respectively. Furthermore, the whole seedling assays of IAA show that treatment with CO increased the overall IAA levels in various tissues of tomato. Exposure of tomato roots to CO also enhanced intracellular NO generation. These results indicate that CO plays a critical role in controlling architectural change in tomato roots.
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影响因子：
11.6
作者：
Casimiro, I;Marchant, A;Bennett, M
通讯作者：
Bennett, M
影响因子：
11.6
作者：
Himanen, K;Boucheron, E;Beeckman, T
通讯作者：
Beeckman, T
影响因子：
11.6
作者：
Marchant, A;Bhalerao, R;Sandberg, G
通讯作者：
Sandberg, G
影响因子：
4.3
作者：
Correa-Aragunde, N;Graziano, M;Lamattina, L
通讯作者：
Lamattina, L
DOI：
10.1073/pnas.86.1.99
发表时间：
1989-01-01
影响因子：
11.1
作者：
KEYSE, SM;TYRRELL, RM
通讯作者：
TYRRELL, RM