Herbicidal activity and mode of action of vulgamycin

Babczinski, Peter; Dorgerloh, Michael; Löbberding, Antonius; Santel, Hans‐Joachim; Schmidt, Robert R.; Schmitt, Peter; Wünsche, Christian

doi:10.1002/ps.2780330406

Cited by 23 publications

(16 citation statements)

References 7 publications

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“…In a subsequent study, enterocin ( 7 ) did not exhibit any activity against strains of S. aureus , B. subtilis , P. aeruginosa , Salmonella typhimurium , E. coli , Saccharomyces cerevisiae , C. albicans , P. chrysogenum and Trichophyton mentagrophytes and displayed weak activity only against a strain of Micrococcus luteus [ 15 ]. In addition, enterocin ( 7 ) exhibited herbicidal activity when applied post-emergence, controlling dicotyledonous weeds and grasses at dosages between 125 and 500 g ha −1 , being safe for application on cotton, maize and barley [ 16 ]. 5-Deoxy-enterocin ( 8 ) was reported to inhibit strains of S. lutea , S. aureus , Klebsiella pneumoniae and Vibrio percolans at a concentration of 0.5 mg/mL [ 9 ].…”

Section: Resultsmentioning

confidence: 99%

α-Pyrone Polyketides from Streptomyces ambofaciens BI0048, an Endophytic Actinobacterial Strain Isolated from the Red Alga Laurencia glandulifera

et al. 2017

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Four new (1-4) and six previously reported (5-10) α-pyrone polyketides, along with benzoic acid, hydrocinnamic acid, and (E)-cinnamic acid, were isolated from the organic extract resulting from the cultivation of the algicolous strain Streptomyces ambofaciens BI0048, which in turn was isolated from the inner tissues of the red alga Laurencia glandulifera. The structure elucidation of the isolated natural products was based on extensive analysis of their spectroscopic data (NMR, MS, UV, IR). Compounds 1-10 were evaluated for their antibacterial and cytotoxic activities against two multidrug-resistant strains of Staphylococcus aureus and one strain of Escherichia coli, as well as two human cancer cell lines.

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Section: Resultsmentioning

confidence: 99%

α-Pyrone Polyketides from Streptomyces ambofaciens BI0048, an Endophytic Actinobacterial Strain Isolated from the Red Alga Laurencia glandulifera

et al. 2017

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“…Vulgamycin. Vulgamycin is an antibiotic isolated from several strains of Streptomyces (Babczinski et al 1991;Miyairi et al 1976). The structure and absolute configuration of the compound was determined early after discovery (Seto et al 1976;Tokuma et al 1976).…”

Section: Gliotoxinmentioning

confidence: 99%

“…The structure and absolute configuration of the compound was determined early after discovery (Seto et al 1976;Tokuma et al 1976). The phytotoxic properties of vulgamycin were discovered more recently (Babczinski et al 1991;Dorgerloh et al 1990). This chemical exhibits postemergence herbicidal activity and controls dicotyledonous weeds and grasses such as Setaria species, at levels between 125 and 500 g/ha.…”

Section: Gliotoxinmentioning

confidence: 99%

Microbial Allelochemicals and Pathogens as Bioherbicidal Agents¹

Hoagland¹

2001

Weed Technology

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The initiative to use plant pathogens and allelochemicals from pathogens and other microorganisms as biological weed control agents (bioherbicides) began about 30 yr ago. Since then, numerous plant pathogens (bacteria and fungi) and microbial allelochemicals have been isolated, identified, and tested for their bioherbicidal potential. Pathogens (and in some cases microbial phytotoxins) may be used directly on target weed species, or such allelochemicals may provide unique chemical templates for the synthesis of new herbicide classes with novel molecular modes of action. To date, the most successful microbial products that have led to the development of commercial herbicides are bialaphos (commercially available in Japan) and glufosinate (marketed worldwide). Glufosinate is the ammonium salt of phosphinothricin, which is the active ingredient of bialaphos derived from a nonphytopathogenic Streptomyces species. This overview will examine selected advances in the isolation and identification of novel plant pathogens that have weed hosts, and some microbial allelochemicals with phytotoxic properties. Perspectives on the use of these bioherbicides in weed control, relative to their allelopathic interactions with plants will be discussed.

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“…Nuclear magnetic resonance (NMR) 3 has been used exten sively for obtaining structural information on herbidde com pounds, primarily in the areas of herbicide synthesis and degradation. However, to date, this technology has not been widely utilized in determining chemical interactions between herbiddes and spray solution adjuvants.…”

Section: Introductionmentioning

confidence: 99%

“…However, to date, this technology has not been widely utilized in determining chemical interactions between herbiddes and spray solution adjuvants. A primary use of NMR with herbicides is for identification of the chemical structure of newly synthesized herbidde products (11,19) and microbially produced herbicidal compounds (3,13). In addition to identify ing herbicidally active compounds, NMR has also been utilized for identifying inert ingredients in herbicide formulations (22).…”

Section: Introductionmentioning

confidence: 99%

Utility of Nuclear Magnetic Resonance for Determining the Molecular Influence of Citric Acid and an Organosilicone Adjuvant on Glyphosate Activity

Thelen

Jackson²,

Penner

1995

Weed sci.

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In the discipline of Weed Science, nuclear magnetic resonance (NMR) has been used extensively for obtaining structural information on herbicide compounds in the areas of herbicide synthesis, metabolism, and environmental degradation. However, little research has been published with regard to the utilization of NMR in determining molecular interactions in the spray solution. The molecular influence of citric add and an organosilicone adjuvant on glyphosate was analyzed with NMR spectrometry.14C-glyphosate absorption studies showed a decrease in glyphosate absorption by sunflower when Ca2+was added to the spray solution. This absorption antagonism was overcome with the inclusion of an organosilicone adjuvant.1H-NMR was used to stow that the organosilicone adjuvant did not directly interact with the glyphosate molecule nor did it prevent the formation of Ca-glyphosate. Citric add was effective in overcoming the Cat2+antagonism of glyphosate activity when the citric add concentration was 2× or 4× the Ca2+molar concentration based on plant fresh weight and plant height, respectively.1H-NMR was utilized to show that citric acid reacted with Ca2+in solution to produce Ca-citrate and prevent the formation of Ca-glyphosate. NMR was an effective technique for characterizing chemical interactions among the spray solution components.

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Herbicidal activity and mode of action of vulgamycin

Cited by 23 publications

References 7 publications

α-Pyrone Polyketides from Streptomyces ambofaciens BI0048, an Endophytic Actinobacterial Strain Isolated from the Red Alga Laurencia glandulifera

α-Pyrone Polyketides from Streptomyces ambofaciens BI0048, an Endophytic Actinobacterial Strain Isolated from the Red Alga Laurencia glandulifera

Microbial Allelochemicals and Pathogens as Bioherbicidal Agents¹

Utility of Nuclear Magnetic Resonance for Determining the Molecular Influence of Citric Acid and an Organosilicone Adjuvant on Glyphosate Activity

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Herbicidal activity and mode of action of vulgamycin

Cited by 23 publications

References 7 publications

α-Pyrone Polyketides from Streptomyces ambofaciens BI0048, an Endophytic Actinobacterial Strain Isolated from the Red Alga Laurencia glandulifera

α-Pyrone Polyketides from Streptomyces ambofaciens BI0048, an Endophytic Actinobacterial Strain Isolated from the Red Alga Laurencia glandulifera

Microbial Allelochemicals and Pathogens as Bioherbicidal Agents1

Utility of Nuclear Magnetic Resonance for Determining the Molecular Influence of Citric Acid and an Organosilicone Adjuvant on Glyphosate Activity

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Microbial Allelochemicals and Pathogens as Bioherbicidal Agents¹