Screening of 50 Cunoniaceae species from New Caledonia for antimicrobial properties

Fogliani, Bruno; Bouraïma-Madjèbi, Saliou; Medevielle, Valérie

doi:10.1080/0028825x.2002.9512810

Cited by 9 publications

(8 citation statements)

References 15 publications

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“…Since previous studies on crude methanolic extract of C. macrophylla leaves showed antibiotic activities (Fogliani et al, 2002a), we decided to extract leaves using a Soxhlet apparatus with three solvents (dichloromethane, ethyl acetate, methanol) to separate bioactive molecules. The results clearly showed that activities were concentrated in the methanolic extract (89.4 g) (Fig.…”

Section: Bioactivity Guided Separationmentioning

confidence: 99%

“…Our screening of 50 species of Cunoniaceae from New Caledonia for antimicrobial properties (Fogliani et al, 2002a) and for inhibitors of xanthine oxidase and scavengers of superoxide anions (Fogliani et al, 2002b) have revealed bioactive potential of some species. Cunonia macrophylla Brongniart & Gris in particular showed a capacity to inhibit bacteria as well as fungi.…”

Section: Introductionmentioning

confidence: 99%

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Bioactive ellagitannins from Cunonia macrophylla, an endemic Cunoniaceae from New Caledonia

et al. 2005

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Section: Bioactivity Guided Separationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Bioactive ellagitannins from Cunonia macrophylla, an endemic Cunoniaceae from New Caledonia

et al. 2005

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“…This species displays good resistance to drought in its natural environment, and is common on serpentine at low altitudes. Biomolecules of pharmacological interest have been identified in this species (Fogliani et al, 2002a(Fogliani et al, , 2002b. Some other Cunonlaceae in New Caledonia belonging to the genera Geissois and Pancheria accumulate aluminum (Al) and Ni (Jaffré et al, 1979).…”

Section: Introductionmentioning

confidence: 98%

Effects of Nickel on Growth and Nutrient Concentrations in a Serpentine Endemic Cunoniaceae

Léon

Fogliani

Bouraïma-Madjèbi

2006

Journal of Plant Nutrition

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Plants growing on serpentine soils are usually assumed to be nickel (Ni)-tolerant species. The objective of the work reported here was to find out whether Cunonia macrophylla Brongniart & Gris, an endemic species common on Ni-rich soils in New Caledonia, is indeed Ni tolerant. In a greenhouse experiment, plants were watered with solutions containing Ni chloride (5 to 1000 mg Ni L −1 ) for 15 months before their morphological characteristics were measured, and the levels of nitrate, protein, and nutrients in the plants were determined. The plants grown with 5, 10, 50, and 100 mg Ni L −1 had more leaves, and there was a tendency toward greater stem thickness and fresh shoot biomass at 50 mg Ni L −1 . Manganese (Mn), copper (Cu), and zinc (Zn) concentrations were also higher in the presence of 50 mg Ni L −1 . One thousand mg Ni L −1 induced symptoms of Ni toxicity, and this effect may account for the lower concentration of potassium (K) in the shoots and roots of plants exposed to this concentration, as well as for inducing higher concentrations of soluble protein in the shoots. Calcium (Ca) and iron (Fe) levels were lower in roots exposed to higher concentrations of Ni. Nickel concentrations in the plant as a whole increased with the level of Ni applied, and the Ni gradient decreased from roots to stem and from stem to leaves. It was concluded that Cunonia macrophylla is a Ni-tolerant species that accumulates Ni without any impairment of growth when exposed to levels of up 500 mg Ni L −1 .

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“…The crude plant extract was obtained using the organic solvent ethanol immersion method modified from a previous study [15]. The air-dried plant was ground into a powder with a shredder.…”

Section: Collection and Preparation Of Plant-derived Extractsmentioning

confidence: 99%

“…Plant resources are extraordinarily rich in China, with more than 10,000 kinds of Chinese herbal medicine resources, 1,400 kinds of plants with inhibitory activity, and 4,000,000 kinds of secondary metabolites [13]. Fogliani studied the antibacterial activity of 50 species of fire-barrel tree plants from Scotland and reported that 49 inhibited spores to varying extents [15]. Ojala et al showed that extracts of wrinkled parsley and fennel have antibacterial effects on antiseptic sclerosis [16].…”

Section: Introductionmentioning

confidence: 99%

Growth Restriction of Rhizoctonia Solani via Breakage of Intracellular Organelles by Crude Extract of Gallnut and Clove

Wang¹,

Hu²,

Yang³

et al. 2021

Preprint

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Plant diseases reduce crop yield and quality, hampering the development of agriculture. Fungicides, which restrict chemical synthesis, are the strongest controls for plant diseases. However, the harmful effects on the environment due to continued and uncontrolled utilization of fungicides has become a major challenge in recent years. Plant-sourced fungicides are a class of plant antibacterial substances or compounds that induce plant defenses. They can kill or inhibit the growth of target pathogens efficiently with no or low toxicity, degrade readily, do not prompt development of resistance, which has led to their widespread use. In this study, the growth inhibition effect of 24 plant-sourced ethanol extracts on rice sprigs was studied. Ethanol extract of gallnuts and cloves inhibited the growth of rice sprites by up to 100%. Indoor toxicity measurement results showed that the gallnut and glove constituents inhibition reached 39.23 μg/mL and 18.82 μg/mL, respectively. Extract treated rice sprigs were dry and wrinkled. Gallnut caused intracellular swelling and breakage of mitochondria , disintegration of nuclei, aggregation of protoplasts, and complete degradation of organelles in hyphae and aggregation of cellular contents. Protection of Rhizoctonia solani viability reached 46.8% for gallnut and 37.88% for clove in water emulsions of 1,000 μg/mL gallnut and clove in the presence of 0.1% Tween 80. The protection by gallnut was significantly stronger than that of clove. The data could inform the choice of plant-sourced fungicides for the comprehensive treatment of rice sprig disease. The studied extract effectively protected rice sprigs and could be a suitable alternative to commercially available chemical fungicides. Further optimized field trials are needed to effectively sterilize rice paddies.

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Screening of 50 Cunoniaceae species from New Caledonia for antimicrobial properties

Cited by 9 publications

References 15 publications

Bioactive ellagitannins from Cunonia macrophylla, an endemic Cunoniaceae from New Caledonia

Bioactive ellagitannins from Cunonia macrophylla, an endemic Cunoniaceae from New Caledonia

Effects of Nickel on Growth and Nutrient Concentrations in a Serpentine Endemic Cunoniaceae

Growth Restriction of Rhizoctonia Solani via Breakage of Intracellular Organelles by Crude Extract of Gallnut and Clove

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