Nitric oxide in plants: an assessment of the current state of knowledge.
Nitric oxide in plants: an assessment of the current state of knowledge.
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DOI：
10.1093/aobpla/pls052
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发表时间：
2013
期刊：
影响因子：
2.9
通讯作者：
Gupta KJ
中科院分区：
文献类型：
--
作者：
Mur LA;Mandon J;Persijn S;Cristescu SM;Moshkov IE;Novikova GV;Hall MA;Harren FJ;Hebelstrup KH;Gupta KJ
一氧化氮(NO)是参与植物逆境反应和发育的一种植物信号。我们在这里回顾了这一领域的一些关键进展，但也强调了植物的某些关键方面，没有生物学需要进一步关注。经过20世纪最后十年的一系列开创性工作，一氧化氮(NO)现在被牢牢地放在植物信号的万神殿中。一氧化氮在植物-微生物相互作用、对非生物胁迫的反应、气孔调节和一系列发育过程中发挥作用。通过考虑植物NO生物学的最新进展，这篇综述将突出需要进一步关注的某些关键方面。将考虑以下问题。虽然胞质硝酸还原酶是NO的重要来源，但其他机制的贡献，包括定义不明确的精氨酸氧化活性，需要在分子水平上进行表征。利用多胺和羟胺的其他氧化途径也需要进一步关注。一氧化氮的作用依赖于其浓度和空间生成模式。然而，目前没有一种可用的技术能够提供对NO产生的时空模式的准确测量。在研究中使用药物NO供体的情况也是如此，有时很少考虑NO产生的动力学。我们在这里包括了对二乙胺一氧化氮、S亚硝基谷胱甘肽和硝普钠渗入烟叶后产生NO的工厂评估，这可能有助于工作人员的实验。此外，根据目前的数据，很难定义定制的植物没有信号通路，而是NO似乎充当其他信号通路的修饰者。因此，早期关于没有信号涉及cGMP的报道--就像动物系统中的那样--需要重新审视。最后，由于植物暴露在许多外部来源的NO中，对非共生血红蛋白和其他NO汇等清除NO的控制的调查应该更加重要。通过明确这些问题，作者鼓励通过植物群落的共同努力来解决这些问题。
Nitric oxide (NO) is a plant signal contributing to plant stress responses and development. We here review some of the key advances in this field but also highlight certain key aspects of plant NO biology that require further attention. After a series of seminal works during the last decade of the 20th century, nitric oxide (NO) is now firmly placed in the pantheon of plant signals. Nitric oxide acts in plant–microbe interactions, responses to abiotic stress, stomatal regulation and a range of developmental processes. By considering the recent advances in plant NO biology, this review will highlight certain key aspects that require further attention. The following questions will be considered. While cytosolic nitrate reductase is an important source of NO, the contributions of other mechanisms, including a poorly defined arginine oxidizing activity, need to be characterized at the molecular level. Other oxidative pathways utilizing polyamine and hydroxylamine also need further attention. Nitric oxide action is dependent on its concentration and spatial generation patterns. However, no single technology currently available is able to provide accurate in planta measurements of spatio-temporal patterns of NO production. It is also the case that pharmaceutical NO donors are used in studies, sometimes with little consideration of the kinetics of NO production. We here include in planta assessments of NO production from diethylamine nitric oxide, S-nitrosoglutathione and sodium nitroprusside following infiltration of tobacco leaves, which could aid workers in their experiments. Further, based on current data it is difficult to define a bespoke plant NO signalling pathway, but rather NO appears to act as a modifier of other signalling pathways. Thus, early reports that NO signalling involves cGMP—as in animal systems—require revisiting. Finally, as plants are exposed to NO from a number of external sources, investigations into the control of NO scavenging by such as non-symbiotic haemoglobins and other sinks for NO should feature more highly. By crystallizing these questions the authors encourage their resolution through the concerted efforts of the plant NO community.
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影响因子：
64.8
作者：
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通讯作者：
Lamb, C
影响因子：
2.9
作者：
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作者：
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作者：
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通讯作者：
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