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首页> 外文期刊>International Journal of Agriculture and Biology >Plant Molecular Defense Mechanisms Promoted by Nanoparticles against Environmental Stresses
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Plant Molecular Defense Mechanisms Promoted by Nanoparticles against Environmental Stresses

机译：纳米粒子促进植物对抗环境胁迫的分子防御机制

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The alleviation of environmental stress on plants by the application of nanoparticles (NPs) has been a significant trend in the agricultural research of the last decade. Various sources of stress, such as salinity, drought, flooding, low and high temperatures, light, darkness, heavy metals, and microbial pathogens have been shown to be mitigated by NPs. Changes in gene expression associated with NP-based alleviation, however, have not been fully investigated, and the molecular defense mechanisms associated with the enhancement of plant tolerance by NPs need to be better understood. To this end, this paper reviews all available reports regarding plant transcriptomic and proteomic responses to NP-based alleviation of stress conditions. Despite their limited number, these reports discuss molecular defense mechanisms promoted by NPs under stress. Selected studies targeted salinity, drought, flooding, cold, heavy metal cadmium (Cd), fluoride and the antibiotic tetracycline (TC) as sources of abiotic stress, as well as biotic stress caused by pathogens in addition to wounding in plant tissues which might due to abiotic or biotic factors. From these studies, large number of genes appears to be responsive to NPs under stress, suggesting that unique molecular defense patterns arise from the combination of NP treatment and environmental stress. Moreover, transcriptional repression is shown to be the basic molecular mechanism of the plant response to NPs, regardless of type or size. This review provides an illustration of the molecular defense mechanisms promoted by NPs for plants suffering from abiotic or biotic stresses.
机译：在过去的十年中，通过应用纳米颗粒（NPs）减轻植物的环境压力一直是农业研究的重要趋势。 NPs已显示出各种压力源，例如盐度，干旱，洪水，低温和高温，光明，黑暗，重金属和微生物病原体。但是，尚未充分研究与基于NP的缓解相关的基因表达的变化，需要更好地了解与NP增强植物耐受性相关的分子防御机制。为此，本文综述了有关植物转录组和蛋白质组学对基于NP的胁迫条件缓解的所有现有报道。尽管数量有限，但这些报告讨论了NP在压力下促进的分子防御机制。选定的研究针对盐度，干旱，洪水，寒冷，重金属镉（Cd），氟化物和抗生素四环素（TC）作为非生物胁迫的来源，以及由病原体引起的生物胁迫，以及可能造成植物组织受伤的原因。非生物或生物因素。从这些研究中，大量基因似乎在压力下对NP有反应，表明NP处理和环境胁迫相结合会产生独特的分子防御模式。此外，无论类型或大小如何，转录抑制被证明是植物对NPs应答的基本分子机制。这篇综述提供了NPs促进非生物或生物胁迫植物的分子防御机制的例证。

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