EFFECT OF HYDROSTATIC PRESSURE ON THE VIABILITY OF EPN NATIVE ITALIAN STRAINS STEINERNEMA FELTIAEAND HETERORHABDITIS BACTERIOPHORA

IF 0.8 4区生物学 Q3 ZOOLOGY

Redia-Giornale Di Zoologia Pub Date : 2020-11-30 DOI:10.19263/redia-103.20.18

A. S. Anifantis, Roberta Marziale, S. Pascuzzi, Josip Ravlić, N. Grujic, E. Tarasco

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引用次数: 1

Abstract

The use of entomopathogenic nematodes (EPNs)as a non-chemical treatment system is one of the most mo-dern techniques promoted by the 2008/128/EC standards for the biological control of plant pathogens. The distri-bution ofEPNscould be carried out with the same sprayers used for the distribution of pesticides. This research is focusedon the effects of the mechanical stress due to hydraulic compression on EPNsItalianstrains,Stei-nernemafeltiaeand Heterorhabditisbacteriophora, to assess their residual strength and vitality under laboratory tests. Liquid suspensions of nematodes were subjected to 8 different levels of hydrostatic pressure from 5 to 40 bar. The hydraulic compression test was conducted through a hydrostatic compression system specifically de-signed for the experimental test. Although correlation curves show an increment of14%in nematode mortality, the statistical analysisdid not show any significant effect of static pressure on the vitality and infectivity of EPNs, that makes them suitable for field application with sprayers. These preliminary positive results on the effects of compression on the viability of EPNsare preparatory to subsequent field tests under high pressure

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静水压力对意大利本土菌株菲氏斯坦纳氏菌和嗜菌异habditis生存力的影响

利用昆虫病原线虫(EPNs)作为一种非化学处理系统，是2008/128/EC标准所提倡的植物病原菌生物防治最现代的技术之一。可使用与分发农药相同的喷雾器进行fepn的分发。本文研究了水力压缩引起的机械应力对epnsitalianstrain、stei - nernemaleltiae和Heterorhabditisbacteriophora的影响，并在实验室测试中评估了它们的残余强度和活力。线虫的液体悬浮液受到8种不同水平的静水压力，从5到40 bar。水力压缩试验是通过专门为试验设计的静压系统进行的。虽然相关曲线显示线虫死亡率增加了14%，但统计分析没有显示静压对epn的活力和传染性有任何显著影响，这使得它们适合与喷雾器一起在野外应用。这些关于压缩对epnssa生存能力影响的初步积极结果是为后续高压下的现场试验做准备

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来源期刊

Redia-Giornale Di Zoologia ZOOLOGY-

CiteScore

1.20

自引率

20.00%

发文量

审稿时长

>12 weeks

期刊介绍： Redia supports its long history of basic and applied research in entomology and invertebrate zoology in the field of crop and forest tree protection responding at the same time to the increasing need of innovation and technological improvement.