Juglone and allelopathy

Soderquist, Charles J.

doi:10.1021/ed050p782

Cited by 57 publications

(37 citation statements)

References 9 publications

(10 reference statements)

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“…Juglone is widely reported to be growth-stunting to many plants types, where it exerts an allelopathic effect by inhibiting specific enzymes needed for metabolic function [53]. Quinone-type compounds have been widely identified and used as anticancer, antibacterial or antimalarial drugs and, also, as fungicides and herbicides [54].…”

Section: Resultsmentioning

confidence: 99%

Anti-Biofilm Performance of Three Natural Products against Initial Bacterial Attachment

Salta

Wharton

Dennington

et al. 2013

IJMS

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Marine bacteria contribute significantly towards the fouling consortium, both directly (modern foul release coatings fail to prevent “slime” attachment) and indirectly (biofilms often excrete chemical cues that attract macrofouling settlement). This study assessed the natural product anti-biofilm performance of an extract of the seaweed, Chondrus crispus, and two isolated compounds from terrestrial sources, (+)-usnic acid and juglone, against two marine biofilm forming bacteria, Cobetia marina and Marinobacter hydrocarbonoclasticus. Bioassays were developed using quantitative imaging and fluorescent labelling to test the natural products over a range of concentrations against initial bacterial attachment. All natural products affected bacterial attachment; however, juglone demonstrated the best anti-biofilm performance against both bacterial species at a concentration range between 5–20 ppm. In addition, for the first time, a dose-dependent inhibition (hormetic) response was observed for natural products against marine biofilm forming bacteria.

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Section: Resultsmentioning

confidence: 99%

Anti-Biofilm Performance of Three Natural Products against Initial Bacterial Attachment

Salta

Wharton

Dennington

et al. 2013

IJMS

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“…In addition to well-characterized allelochemicals, including momilactones A and B from rice and juglone from black walnut (Juglans nigra) (Kato- Noguchi and Peters 2013;Soderquist 1973), flavonoids have been implicated as allelochemicals in the rhizosphere. Dittrichia viscosa is a ruderal plant, aggressively occupying disturbed areas with allelopathic effects.…”

Section: Interactions With Other Plantsmentioning

confidence: 99%

Flavonoids in plant rhizospheres: secretion, fate and their effects on biological communication

Sugiyama

Yazaki

2014

Plant Biotechnology

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Flavonoids, one of the most-described group of plant "specialized metabolites", consist of more than 10,000 structurally diverse compounds. Most flavonoids accumulate in plant vacuoles as glycosides, with some released by the roots into rhizospheres. These flavonoids are involved in biological communications with rhizobia, arbuscular mycorrhizal fungi, plant growth promoting rhizobacteria, pathogens, nematodes, and other plant species. Both aglycones and glycosides of flavonoids are found in root exudates and in soils. This review describes researches on the mechanisms of flavonoid secretion and the fate of flavonoids released into rhizospheres. This review also discusses the direction of future research that may elucidate the specific roles of flavonoids in biological communications in rhizospheres, enabling the utilization of flavonoid activities and functions in agricultural practice.

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“…Plants may thus inhibit the development of other species in their vicinity; a well-documented phenomenon [54,55]. Here there is a toxic effect which at first sight may seem to be unlikely to be exerted.…”

Section: Toxicitymentioning

confidence: 99%

The Non-Protein Amino Acids

Hunt¹

1985

Chemistry and Biochemistry of the Amino Acids

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Juglone and allelopathy

Cited by 57 publications

References 9 publications

Anti-Biofilm Performance of Three Natural Products against Initial Bacterial Attachment

Anti-Biofilm Performance of Three Natural Products against Initial Bacterial Attachment

Flavonoids in plant rhizospheres: secretion, fate and their effects on biological communication

The Non-Protein Amino Acids

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