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Protection of Erwinia amylovora bacteriophage Y2 from UV-induced damage by natural compounds

机译：保护欧文氏菌amylovora噬菌体Y2从UV-induced天然化合物的影响

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摘要

Bacteriophages have regained much attention as biocontrol agents against bacterial pathogens. However, with respect to stability, phages are biomolecules and are therefore sensitive to a number of environmental influences. UV-irradiation can readily inactivate phage infectivity, which impedes their potential application in the plant phyllosphere. Therefore, phages for control of Erwinia amylovora, the causative agent of fire blight, need to be protected from UV-damage by adequate measures. We investigated the protective effect of different light-absorbing substances on phage particles exposed to UV-light. For this, natural extracts from carrot, red pepper, and beetroot, casein and soy peptone in solution, and purified substances such as astaxanthin,aromatic amino acids, and Tween 80 were prepared and tested as natural sunscreens for phage. All compounds were found to significantly increase half-life of UV-irradiated phage particles and they did not negatively affect phage viability or infectivity.Altogether, a range of readily available, natural substances are suitable as UV-protectants to prevent phage particles from UV-light damage.
机译：噬菌体已经重新获得了很多关注生物防治剂对细菌病原体。然而,对稳定、噬菌体对一个生物分子,因此敏感环境影响。紫外光照射可以轻易灭活噬菌体传染性,这阻碍了他们的潜能应用植物叶围。噬菌体控制欧文氏菌amylovora,病原体火疫病的需要防止紫外线损伤的措施。调查不同的保护作用在噬菌体颗粒吸光物质暴露于紫外线。从胡萝卜、红辣椒、甜菜根、酪蛋白大豆蛋白胨的解决方案,和纯化物质如虾青素,芳香族氨基酸,和渐变80人准备和测试一样自然噬菌体的防晒霜。显著增加紫外线照射过的半衰期噬菌体粒子和他们不消极影响噬菌体可行性或传染性。一系列现成,天然物质是像UV-protectants防止噬菌体合适吗粒子从紫外线的伤害。

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