Perfileva A I, Nozhkina O A, Graskova I A, Dyakova A V, Pavlova A G, Aleksandrova G P, Klimenkov I V, Sukhov B G, Trofimov B A
Siberian Institute of Plant Physiology and Biochemistry, Siberian Branch, Russian Academy of Sciences, 664033, Irkutsk, Russia.
Irkutsk State University, 664011, Irkutsk, Russia.
Dokl Biol Sci. 2019 Nov;489(1):184-188. doi: 10.1134/S0012496619060073. Epub 2020 Mar 4.
The influence of nanocomposites (NC) of selenium in matrices of arabinogalactan (Se/AG) and starch (Se/St) on in vitro vegetation of potato plants, peroxidase activity, and reactive oxygen species has been thoroughly studied. It has been shown that these nanocomposites of selenium have antimicrobial effect to the phytopathogenic bacterium Clavibacter michiganensis ssp. sepedonicus (Cms). In the present investigation, it has been shown that Se/AG NC (6.4% of Se) and Se/St NC (12.0% of Se) have no negative impact on the potato plants healthy and Cms infected, while stimulating their growth, number of leaves and weight of the vegetative part. Se/AG NC has shown a positive effect on potato plants by increasing its immune status by increasing the ROS content and increasing the peroxidase activity. With the use of the element analysis technique, it has been shown that scrutinized nanocomposites are not accumulated in potato plants after the bactericidal processing with the nanocomposites. Se/AG NC and Se/St NC as potential agents used for treatment of potato plants against pathogenic bacteria.
对阿拉伯半乳聚糖（Se/AG）和淀粉（Se/St）基质中硒纳米复合材料对马铃薯植株体外生长、过氧化物酶活性和活性氧的影响进行了深入研究。结果表明，这些硒纳米复合材料对植物病原菌密歇根棒杆菌环腐亚种（Cms）具有抗菌作用。在本研究中，已表明Se/AG纳米复合材料（含6.4%的硒）和Se/St纳米复合材料（含12.0%的硒）对健康的马铃薯植株和感染Cms的植株均无负面影响，同时还能促进其生长、增加叶片数量和营养部分的重量。Se/AG纳米复合材料通过增加活性氧含量和提高过氧化物酶活性来提高马铃薯植株的免疫状态，从而对其产生积极影响。利用元素分析技术表明，在用纳米复合材料进行杀菌处理后，所研究的纳米复合材料不会在马铃薯植株中积累。Se/AG纳米复合材料和Se/St纳米复合材料可作为治疗马铃薯植株病原菌的潜在药剂。
