FISCHERELLIN, A NEW ALLELOCHEMICAL FROM THE FRESHWATER CYANOBACTERIUM <i>FISCHERELLA MUSCICOLA</i><sup>1</sup>

Gross, Elisabeth Maria; Wölk, C. Peter; Jüttner, Friedrich

doi:10.1111/j.0022-3646.1991.00686.x

Cited by 117 publications

(71 citation statements)

References 22 publications

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“…The 'SCNMR spectrum showed at 6167.99 and 167.57 the CO groups of the HHDP moiety and at 6166.20, 165.43 and 164.92 three signals for the CO carbons of the galloyl ester groups. A comparison with the literature data [20][21][22] [18], much greater differences in sensitivity (100 to 1000-fold) were recorded between cyanobacteria and chlorophytes. The minimum amount of gallic and ellagic acid to obtain a comparable inhibition in the ADA were 30 and 50/~g (160 and 166 nmol), respectively, with Trichormus var.…”

Section: Resultsmentioning

confidence: 56%

Release and ecological impact of algicidal hydrolysable polyphenols in Myriophyllum spicatum

Meyer²,

1996

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Abstract--Aqueous acetone extracts of shoots of Eurasian watermilfoil (Myriophyllum spicatum) exhibit a strong inhibitory action against various coccoid and filamentous cyanobacteria and to a slightly less extent against chlorophytes and diatoms. Bioassay-directed fractionation led to the isolation of a hydrolysable polyphenol, tellimagrandin II, which turned out to be the main inhibitory substance. Myriophyllum spicatum contains large amounts of this compound (1.5 % of dry wt). Part of the inhibitory activity is due to complexation and inactivation of algal extracellular enzymes (e.g. alkaline phosphatase) by hydrolysable polyphenols from M. spicatum.

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Section: Resultsmentioning

confidence: 56%

Release and ecological impact of algicidal hydrolysable polyphenols in Myriophyllum spicatum

Meyer²,

1996

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“…PCC 7120 and A. variabilis P9 ATCC 29413 were used in agar diffusion assays (ADAs, see Bioassays), while the four Microcystis aeruginosa strains (NIVA-CYA 140 (toxic), NIVA-CYA 43, V131 (from E. Kardinaal), and PCC 7820, the latter two non-toxic), the cyanobacterium Synechococcus elongatus (SAG 89.79), the green algae Chlorella minutissima (CCAP 211/52), Chlamydomonas reinhardtii (NIVA-CHL 13), Scenedesmus obliquus (CCAP 276/3A), Selenastrum capricornutum (NIVA-CHL 1) and the eustigmatophyte Nannochloropsis limnetica (Krienitz 1998/3) were used in liquid culture assays (LCAs, see Bioassays). All cyanobacteria were cultured in cyanobacteria medium (Jü ttner et al, 1983; with modifications as in Gross et al, 1991), while all green algae and Nannochloropsis were cultured in modified WC medium (Guillard & Lorentzen, 1972;modified by Lurling, 1999).…”

Section: Target Organismsmentioning

confidence: 99%

“…We conducted two types of bioassays under sterile conditions: Agar diffusion assays, (ADAs, Flores & Wolk, 1986;Gross et al, 1991) and liquid culture assays, (LCAs, Schrader et al, 1997; slightly modified by Erhard & Gross, submitted).…”

Section: Bioassaysmentioning

confidence: 99%

Allelopathic activity of Stratiotes aloides on phytoplankton—towards identification of allelopathic substances

et al. 2007

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The allelopathic activity of the aquatic macrophyte, Stratiotes aloides, was determined with laboratory experiments. Active compounds exuded in the medium or present in plant tissue were extracted using standard procedures and solid phase extraction (SPE). The activity towards various cyanobacteria and chlorophytes was tested in two different bioassay systems using agar plates and liquid cultures of phytoplankton. Extracts and exudates of S. aloides affected phytoplankton growth. SPE-enriched exudates and enriched water from a natural Stratiotes stand caused inhibition of target species, however, also some controls were active. Phytoplankton species exhibited differential sensitivity to extracts of S. aloides. We observed inhibitory and stimulatory effects on phytoplankton. In general, more cyanobacteria than other phytoplankton species were inhibited, and the inhibition of cyanobacteria was stronger. In most cases, nutrient (P or K) limitation of Synechococcus elongatus and Scenedesmus obliquus decreased the sensitivity of these species towards allelochemicals from Stratiotes aloides, except for P-limited cultures of Scenedesmus. The allelopathically active compound(s) from Stratiotes are moderately lipophilic and most likely no phenolic compounds. Our results indicate that allelopathy (besides nutrient interference and shading) might also account for the low phytoplankton and filamentous algae densities in the vicinity of Stratiotes plants, at least during certain phases of the life-cycle of Stratiotes.

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“…The ADA was performed as described previously (Flores & Wolk, 1986;Gross et al, 1991) using inoculation densities of 0.04 OD 530 nm (optical density of culture at 530 nm) for Anabaena spp. and 0.1 OD 530 nm for Synechococcus.…”

Section: Bioassaysmentioning

confidence: 99%

Allelopathic activity of Ceratophyllum demersum L. and Najas marina ssp. intermedia (Wolfgang) Casper

2003

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We investigated the allelopathic activity of two submersed macrophytes with different growth forms and nutrient uptake modes, Ceratophyllum demersum and Najas marina ssp. intermedia. A bioassay-directed method development revealed optimal extraction solvents for allelochemicals from both macrophytes. For Najas, 50% methanol and for Ceratophyllum 50% acetone yielded the strongest inhibition in the agar-diffusion assay with various filamentous or chroococcal cyanobacteria as target species. Further fractionation by liquid-liquid extraction (LLE) and solid phase extraction (SPE) procedures showed that both aquatic plants appear to have more than one active fraction, one being hydrophilic and one moderately lipophilic. The water-soluble allelochemicals may inhibit phytoplankton whereas the lipophilic allelochemicals may act through direct cell-cell contact, e.g., against epiphytes. Both macrophytes also exuded allelopathically active compounds into the surrounding medium as shown by SPE of their incubation water.

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FISCHERELLIN, A NEW ALLELOCHEMICAL FROM THE FRESHWATER CYANOBACTERIUM FISCHERELLA MUSCICOLA¹

Abstract: The bellthie c) '

Cited by 117 publications

References 22 publications

Release and ecological impact of algicidal hydrolysable polyphenols in Myriophyllum spicatum

Release and ecological impact of algicidal hydrolysable polyphenols in Myriophyllum spicatum

Allelopathic activity of Stratiotes aloides on phytoplankton—towards identification of allelopathic substances

Allelopathic activity of Ceratophyllum demersum L. and Najas marina ssp. intermedia (Wolfgang) Casper

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FISCHERELLIN, A NEW ALLELOCHEMICAL FROM THE FRESHWATER CYANOBACTERIUM FISCHERELLA MUSCICOLA1

Abstract: The bellthie c) '

Cited by 117 publications

References 22 publications

Release and ecological impact of algicidal hydrolysable polyphenols in Myriophyllum spicatum

Release and ecological impact of algicidal hydrolysable polyphenols in Myriophyllum spicatum

Allelopathic activity of Stratiotes aloides on phytoplankton—towards identification of allelopathic substances

Allelopathic activity of Ceratophyllum demersum L. and Najas marina ssp. intermedia (Wolfgang) Casper

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FISCHERELLIN, A NEW ALLELOCHEMICAL FROM THE FRESHWATER CYANOBACTERIUM FISCHERELLA MUSCICOLA¹