Tag Archives: essential oils

xxx A. Parfeniuk, V. Mineralova, I. Beznosko, A. Lishchuk, V. Borodai and V. Krut
Mycobiota of the rhizosphere of raspberry plants (Rubus idaeus L.) under the influence of varieties and new fertilizers in conditions of organic production
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Mycobiota of the rhizosphere of raspberry plants (Rubus idaeus L.) under the influence of varieties and new fertilizers in conditions of organic production

A. Parfeniuk¹, V. Mineralova¹*, I. Beznosko¹, A. Lishchuk¹, V. Borodai² and V. Krut³

¹Institute of Agroecology and Nature Management of NAAS of Ukraine, Metrologichna, 12, UA03143 Kyiv, Ukraine
²The National University of Life and Environmental Sciences of Ukraine, Heroiv Oborony, 15, UA03041 Kyiv, Ukraine
³Institute of Microbiology and Virology named after D.K. Zabolotnyi of NAAS of Ukraine, Academician Zabolotny, 154, UA03143 Kyiv, Ukraine
*Correspondence: valentinamk@ukr.net

Abstract:

The results of studies of influence of raspberry plant varieties and new organic fertilizers on the abundance and species composition of the micromycetes in rhizospheric soil in conditions of organic production are presented. The mycobiota of Joan J and Himbo-Top raspberry varieties during plant ontogeny was analyzed and the species composition of phytopathogenic micromycetes, which are presented in the rhizospheric plant soil, was defined. It was revealed that the following fungi species prevail in the population: Botrytis cinerea, Pers, Aspergillus niger, V. Tiegh, Alternaria alternata, (Fr.) Keissl, Fusarium sp. These fungi are producers of mycotoxins that can cause dangerous diseases in animals and humans. There is a stabilizing selection of microorganisms in the phase of separation of buds in inflorescences in the mycobiota of the rhizosphere of plants of raspberry varieties under the influence of the organic fertilizer VITERI with the addition of Basil essential oil.

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437-440 M. Vasinauskienė, J. Radušienė, I. Zitikaitė and E. Survilienė
Antibacterial activities of essential oils from aromatic and medicinal plants against growth of phytopathogenic bacteria
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Antibacterial activities of essential oils from aromatic and medicinal plants against growth of phytopathogenic bacteria

M. Vasinauskienė¹, J. Radušienė¹, I. Zitikaitė¹ and E. Survilienė²

¹Institute of Botany, Žaliųjų ežerų 49, LT–08406 Vilnius, Lithuania; e-mail:milda@botanika.lt
²Lithuanian Institute of Horticulture, LT–4335 Babtai, Kaunas distr.; e-mail:e.surviliene@lsdi.lt

Abstract:

In search for alternative ways of plant disease control, essential oils from aromatic and medicinal plants were studied for their antibacterial properties. In a preliminary evaluation, steam-distilled essential oils from oregano, sweet-flag, caraway, peppermint, common, fern leaf and willow-leaved yarrow field accessions were investigated against growth of phytopathogenic bacteria. The disc-diffusion method was used for the assessment of inhibitory effects of the essential oils. The antibacterial activity tests were conducted in vitro. Essential oil from oregano was found to have the strongest inhibitory effect against tested phytopathogenic bacteria. Less antibacterial effect was found with essential oils from caraway, peppermint, fern-leaf and willow-leaved yarrow,, while the oils from common yarrow and sweet-flag manifested no inhibition. Xanthomonas vesicatoria 67 was the most sensitive to essential oils tested. A weak antibacterial activity was found against some Pseudomonas spp. strains and Erwinia carotovora subsp. carotovora bacteria.

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