Microorganisms and allelopathy: A one-sided approach

Vokou, Despoina; Chalkos, Dimitris; Karamanoli, Katerina

doi:10.1007/1-4020-4280-9_15

Cited by 10 publications

(9 citation statements)

References 70 publications

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“…The sesquiterpene compounds isolated from the aerial parts of Helianthus annuus L. may have antibacterial (annuithrin) or antifungal activities (niveusin B) (Spring et al, 1982). Other compounds such as alkaloids, flavonoids and phenolics may also have antifungal properties (Vokou et al, 2006). Phenolic compounds are widely distributed in plants and have been ascribed putative roles in protection against infection by plant pathogens (Wen et al, 2003) and/or insects (e.g.…”

Section: Introductionmentioning

confidence: 99%

Phenolics and antifungal activities analysis in industrial crop Jerusalem artichoke (Helianthus tuberosus L.) leaves

Chen

Long

et al. 2013

Industrial Crops and Products

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Section: Introductionmentioning

confidence: 99%

Phenolics and antifungal activities analysis in industrial crop Jerusalem artichoke (Helianthus tuberosus L.) leaves

Chen

Long

et al. 2013

Industrial Crops and Products

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“…The absence of genotoxicity of the above 10 monoterpenoids is very important because of their common occurrence and their wide use . Furthermore, additional sources for several of them have been reported: α ‐terpinene and p ‐cymene were recovered at near unity from serum and rumen fluid of small ruminants; α ‐pinene and β ‐pinene are present in milk from pasture‐fed cows; whereas nerol and α ‐terpineol were detected in the grapes, must and wine of the grapevine variety Gewurztraminer ( Vitis vinifera L., Vitaceae) …”

Section: Resultsmentioning

confidence: 99%

“…Among them, much attention has been given to essential oils of aromatic plants and their constituents. Monoterpenoids, the most abundantly represented class among essential oil constituents, are known for their biological activity, expressed on several target organisms and processes, as are their effects on microbial (bacteria, fungi, viruses), insect and plant growth . This activity finds wide use in various areas: in agriculture and the food industry, and in pharmaceutical, sanitary and cosmetic products .…”

Section: Introductionmentioning

confidence: 99%

Assessment of the genotoxic potential of essential oil constituents by the Drosophila wing spot test

Mademtzoglou

Pavlidou

Bazioti

et al. 2013

Flavour & Fragrance J

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The genotoxic activity of 15 essential oil constituents used as flavouring agents or cosmetic ingredients was assessed at four concentrations (2.5, 5.0, 7.5 and 10 µl/ml) using the Drosophila melanogaster (Meigen) somatic mutation and recombination test, also known as the wing spot test. Ten of the compounds tested here, namely d‐neomenthol, nerol, 1‐octen‐3‐ol, α‐terpineol, neryl acetate, terpinyl acetate, p‐cymene, α‐pinene, β‐pinene, α‐terpinene were found free of mutagenic or recombinogenic activity, at the applied concentrations. On the other hand, for (1R)‐(−)‐myrtenol and linalyl acetate, weak positive effects were exhibited even at the lowest concentration. For myrtenyl acetate, weakly positive effects were recorded at the high but not at the low concentrations. The two hydrocarbons, γ‐terpinene and terpinolene, showed no genotoxic activity at the low concentrations, but at the high ones they significantly increased the frequency of mutant clones. Results clearly demonstrate differences in activity of positional isomers such as α‐ and γ‐terpinene and terpinolene. Our data suggest the need for re‐evaluating the safety of suspect compounds with cross‐checked genotoxicity studies and at a range of different concentrations. Copyright © 2013 John Wiley & Sons, Ltd.

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“…Such compounds might be specifically targeted against 'useless' or pathogenic bacteria or fungi, and allow the emitter to select the bacterial community by inhibiting some strains and stimulating others (Gantar et al, 2011;Morrow et al, 2011). Another possibility is that such compounds are produced by organisms with relatively slow growth rate that will not take advantage of higher nutrient cycling as can be found in terrestrial allelopathy (Vokou et al, 2006). Benthic microalgae can also be the target of allelochemicals produced by benthic bacteria.…”

Section: Benthic Microalga-microheterotroph Interactionsmentioning

confidence: 99%

Allelopathic interactions involving benthic phototrophic microorganisms

Allen

Ten-Hage

Leflaive

2016

Environ Microbiol Rep

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As a way to prevent resource depletion by other species, many phototrophic aquatic microorganisms produce inhibitory compounds. This process, known as allelopathy, has been widely studied in planktonic environments, where it is recognized as being a driving force of planktonic communities. However, in benthic environments, biofilms provide very particular micro-environments. The present review focuses on allelopathic interactions involving benthic phototrophic prokaryotes and micro-eukaryotes ('microalgae'), which generally form biofilms, and includes any interaction involving benthic microalgae either as the emitter or as the target in both marine and freshwater habitats. To support our hypothesis on the importance of allelopathy in biofilms due to the particularities of biofilms, we show that (i) reported allelopathic species and compounds are diverse and numerous in the three major groups of benthic phototrophic microorganisms, (ii) allelopathic benthic species could affect community composition, (iii) allelopathy in biofilms is currently underestimated because of the lack of suitable methods. As benthic primary producers represent an important source of organic carbon in some streams and littoral areas, these interactions could impact the whole ecosystem in these areas, probably more than in areas dominated by planktonic communities.

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Microorganisms and allelopathy: A one-sided approach

Cited by 10 publications

References 70 publications

Phenolics and antifungal activities analysis in industrial crop Jerusalem artichoke (Helianthus tuberosus L.) leaves

Phenolics and antifungal activities analysis in industrial crop Jerusalem artichoke (Helianthus tuberosus L.) leaves

Assessment of the genotoxic potential of essential oil constituents by the Drosophila wing spot test

Allelopathic interactions involving benthic phototrophic microorganisms

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