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Article

Nematicidal Activity of Essential Oils on a Psychrophilic Panagrolaimus sp. (Nematoda: Panagrolaimidae)

1
Department of Plant Diseases, Institute for Plant Protection and Environment, 11000 Belgrade, Serbia
2
Institute for Multidisciplinary Research, University of Belgrade, 11000 Belgrade, Serbia
3
Agroecology and Cropping Practices Group, Maize Research Institute, 11000 Belgrade, Serbia
4
Faculty of Technology Leskovac, University of Nis, 16000 Leskovac, Serbia
*
Author to whom correspondence should be addressed.
Plants 2020, 9(11), 1588; https://doi.org/10.3390/plants9111588
Received: 9 October 2020 / Revised: 5 November 2020 / Accepted: 9 November 2020 / Published: 17 November 2020
(This article belongs to the Special Issue Plant Parasitic Nematodes)
Essential oils (EOs) have historically been used for centuries in folk medicine, and nowadays they seem to be a promising control strategy against wide spectra of pathogens, diseases, and parasites. Studies on free-living nematodes are scarce. The free-living microbivorous nematode Panagrolaimus sp. was chosen as the test organism. The nematode possesses extraordinary biological properties, such as resistance to extremely low temperatures and long-term survival under minimal metabolic activity. Fifty EOs from 22 plant families of gymnosperms and angiosperms were tested on Panagrolaimus sp. The aims of this study were to investigate the in vitro impact of EOs on the psychrophilic nematode Panagrolaimus sp. in a direct contact bioassay, to list the activity of EOs based on median lethal concentration (LC50), to determine the composition of the EOs with the best nematicidal activity, and to compare the activity of EOs on Panagrolaimus sp. versus plant parasitic nematodes. The results based on the LC50 values, calculated using Probit analysis, categorized the EOs into three categories: low, moderate and highly active. The members of the laurel family, i.e., Cinnamomum cassia and C. burmannii, exhibited the best nematicidal activity. Aldehydes were generally the major chemical components of the most active EOs and were the chemicals potentially responsible for the nematicidal activity. View Full-Text
Keywords: essential oils; Panagrolaimus sp.; LC50; aldehydes essential oils; Panagrolaimus sp.; LC50; aldehydes
MDPI and ACS Style

Oro, V.; Krnjajic, S.; Tabakovic, M.; Stanojevic, J.S.; Ilic-Stojanovic, S. Nematicidal Activity of Essential Oils on a Psychrophilic Panagrolaimus sp. (Nematoda: Panagrolaimidae). Plants 2020, 9, 1588. https://doi.org/10.3390/plants9111588

AMA Style

Oro V, Krnjajic S, Tabakovic M, Stanojevic JS, Ilic-Stojanovic S. Nematicidal Activity of Essential Oils on a Psychrophilic Panagrolaimus sp. (Nematoda: Panagrolaimidae). Plants. 2020; 9(11):1588. https://doi.org/10.3390/plants9111588

Chicago/Turabian Style

Oro, Violeta, Slobodan Krnjajic, Marijenka Tabakovic, Jelena S. Stanojevic, and Snezana Ilic-Stojanovic. 2020. "Nematicidal Activity of Essential Oils on a Psychrophilic Panagrolaimus sp. (Nematoda: Panagrolaimidae)" Plants 9, no. 11: 1588. https://doi.org/10.3390/plants9111588

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