Decomposition profiles of leaf essential oils in the soil environment

Karamanoli, Katerina; Ainalidou, Aggeliki; Bouzoukla, Foteini; Vokou, Despoina

doi:10.1016/j.indcrop.2018.07.082

Cited by 13 publications

(25 citation statements)

References 20 publications

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“…The presence of monoterpenes in oregano oil-especially of oxygenated like carvacrol-has been previously related with plant growth inhibition [39]. Generally, monoterpenes decreased in time and almost all of them were not detected at 90 DAI and this is in agreement with results of Karamanoli et al [40,41]. Based on the herein reported outcomes, further research is needed to shed light on whether the primary reason for the antifungal effects of spearmint and oregano into the soil is due to the presence of terpenes.…”

Section: Effect Of Incorporation Of Aromatic Plants At Soil Environmesupporting

confidence: 89%

Mentha and Oregano Soil Amendment Induces Enhancement of Tomato Tolerance against Soilborne Diseases, Yield and Quality

et al. 2020

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Tomato is considered among the most important horticulture crops in both temperate and tropical regions, and two of the major biotic stresses include Fusarium oxysporun f.sp. lycopersici (Fol) and Verticillium dahliae (Vd). The effect of soil incorporated spearmint and oregano dried plant material on physiological, yield and quality parameters of tomato, along with their efficacy against soilborne fungal diseases, was studied in pot experiments conducted in a greenhouse environment. Tomato plants grown in soil amended with spearmint or oregano showed better agronomical characteristics (taller plants with thicker stems) and improved physiological ones (higher chlorophyll content index and photosynthetic rate). Yield was increased and the qualitative features of tomato fruits were enhanced. In addition, plants grown in soil amended with spearmint or oregano and inoculated with Fol or Vd had no visual disease symptoms 50 days from the inoculated tomato transplantation, except from plants grown in soil amended with oregano and inoculated with Fol, which showed symptoms of chlorosis and leaves loss. These enhancements on physiological parameters and on disease suppression resulted in increased fruit yields of plants–grown in soil amended with spearmint and oregano and inoculated with Fol or Vd–by 77%–95% compared with free-disease controls. GC-MS analysis of volatiles derived from soils amended of either spearmint or oregano indicated that several constituents remained in the soil environment long after incorporation of plant material, although, at lower concentrations and considerable modified. The current study reveals that direct incorporation of spearmint or oregano plant material into the soil could improve tomato tolerance against soilborne fungi, soil fertility and consequently increase yield and product quality.

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Section: Effect Of Incorporation Of Aromatic Plants At Soil Environmesupporting

confidence: 89%

Mentha and Oregano Soil Amendment Induces Enhancement of Tomato Tolerance against Soilborne Diseases, Yield and Quality

et al. 2020

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“…Essential oils of plant origin could play in future a significant role in the eco-friendly management of agricultural pests, including weeds [7,8]. As natural compounds, they are easily biodegradable in the environment at certain doses [9], by soil microbiota [10] and display different modes of action, in comparison to the synthetic pesticides [11,12]. On the other hand, their volatility is a significant constraint, as it leads to the fast evaporation of EOs before they can exert their allelopathic potential.…”

Section: Introductionmentioning

confidence: 99%

Soil or Vermiculite-Applied Microencapsulated Peppermint Oil Effects on White Mustard Initial Growth and Performance

Synowiec

Krajewska

2020

Plants

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Microencapsulated peppermint (Mentha x piperita L.) essential oil (MPEO) is a prospective botanical herbicide. A hypothesis was formulated, that the type of growth medium (vermiculite or silty clay loam soil substrate) affects the phytotoxic potential of MPEO. A pot experiment in a randomized design assessed the effect of five doses of MPEO in a range of 0–108 g m−2 or 0–145 g m−2, mixed with vermiculite or with soil, respectively, on early growth of white mustard (Sinapis alba L. cv. Zlata), tested here as a model “weed” species. The morphologic analyses were supported by selected biochemical measurements. The two highest doses of microcapsules (from 73 to 145 g m−2) caused a significant decrease of plants’ height and biomass. An increase of anthocyanin content in the aboveground parts of mustard is supportive for the induction of defense mechanisms against MPEO-triggered stress in mustard leaves. In conclusion, MPEO appears as a promising bio-herbicide. However, we are aware that further studies on the mechanisms of action of MPEO in different weed species are necessary to test (i) whether or not the effect is consistent to be proficiently exploited for weed control in field and (ii) to deepen the biochemical and physiological reactions by the plants against MPEO treatments.

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“…Monoterpenes (C10 unsaturated hydrocarbons derived from two C5 isoprene units) are volatile organic compounds of biogenic origin and are major allelopathic components of plant (essential) oils [12]. Phytotoxicity has been one of the most studied facets of these compounds for their potential use as biopesticides [9,[13][14][15][16][17][18]. However, despite the pesticidal properties attributed to monoterpenes, their commercialization as biopesticides is still very poor.…”

Section: Introductionmentioning

confidence: 99%

“…Thus, the effect of different field conditions, such as UV radiation, humidity, pH, and inherent soil characteristics, on their stability needs to be solved [21,22] since they can be easily deteriorated by oxygen, light, moisture, heat, and microorganisms [23], leading to a reduction in bioavailability and bioactivity [9]. For instance, Karamanoli et al [16] studied the decomposition of essential oils in soils and established monoterpene biodegradation profiles with time. No losses by transport (leaching) or chemical degradation were observed.…”

Section: Introductionmentioning

confidence: 99%

S-Carvone Formulation Based on Granules of Organoclay to Modulate Its Losses and Phytotoxicity in Soil

Gámiz

Celis

2021

Agronomy

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Based on the effects that allelochemicals can exert over organisms, their use as alternatives to synthetic pesticides has been proposed. To this aim, it is important to understand their behavior in soils as allelochemicals can readily dissipate by different routes. In this work, novel granules based on the commercial organoclay Cloisite® 10A were prepared as a new strategy for the possible application of S-carvone as a bioherbicide, overcoming its rapid dissipation in the environment. Batch release, degradation, mobility, and phytotoxicity tests in soil were performed. Until now, the phytotoxicity of organoclay-based formulations of S-carvone in soil has not been studied. The release of S-carvone in water from the granules occurred slowly. There were no differences in the persistence of the allelochemical after its application to soil as a free compound (readily available form) or supported on granules. However, the granulated formulation reduced and delayed the leaching of S-carvone, thus controlling its downward movement in soil columns, as compared to the free S-carvone. Bioassays revealed that S-carvone supported on granules reduced the germination and aerial biomass of Lactuca sativa L. to a greater extent than the free compound. Our results demonstrated that the prepared formulation of S-carvone, based on granules of the commercial organoclay Cloisite® 10A, could be used to control transport losses, such as leaching or volatilization, increasing the bioefficacy of the allelochemical. These findings could inspire further investigations for the preparation of novel formulations of monoterpenes as potential bioherbicides.

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Decomposition profiles of leaf essential oils in the soil environment

Cited by 13 publications

References 20 publications

Mentha and Oregano Soil Amendment Induces Enhancement of Tomato Tolerance against Soilborne Diseases, Yield and Quality

Mentha and Oregano Soil Amendment Induces Enhancement of Tomato Tolerance against Soilborne Diseases, Yield and Quality

Soil or Vermiculite-Applied Microencapsulated Peppermint Oil Effects on White Mustard Initial Growth and Performance

S-Carvone Formulation Based on Granules of Organoclay to Modulate Its Losses and Phytotoxicity in Soil

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