The Fungicidal Effect of Neem (Azadirachta indica) Extracts on Some Soil-Borne Pathogens of Gram (Cicer arietinum)

Singh, U. P.; Singh, Harikesh Bahadur; Singh, R. B.

doi:10.2307/3759561

Cited by 74 publications

(44 citation statements)

References 10 publications

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“…Several edible botanical extracts have been reported to have antifungal activity (Ferhout, Bohatier, Guillot, & Chalchat, 1999; Masture, Azah, Khozirah, Mawardi, & Manaf, 1999;De et al, 1999;Pradeep, Lokesh, & Ravi, 2003). The essential oils extracted from various plants have been shown to possess significant antifungal properties (Murali & Mathela 1978;Singh, Singh, & Singh, 1980). The inhibitory effects of plant extracts on aflatoxin synthesis have also been examined (Bhatnagar & Cormick, 1988;.…”

Section: Introductionmentioning

confidence: 99%

Potential of botanicals and biocontrol agents on growth and aflatoxin production by Aspergillus flavus infecting rice grains

2009

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Section: Introductionmentioning

confidence: 99%

Potential of botanicals and biocontrol agents on growth and aflatoxin production by Aspergillus flavus infecting rice grains

2009

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“…For instance, our group has carried out studies on the substituent and solvent effects on the electronic absorption and fluorescence spectra of a series of substituted coumarins, and has measured their singlet excited-state dipole moments by using the bulk solvent polarity functions [3][4][5][6]. Also, lanthanide and metal complexes of several coumarins have been prepared and studied by spectroscopic methods and molecular modeling, and they have been shown to possess interesting biological and pharmacological characteristics, such as anti-tumoral, antimicrobial, anti-fungal, anti-coagulant, spasmolytic and anti-HIV activities [7][8][9][10][11][12][13][14][15][16][17]. In recent years, complexes of coumarin-3-carboxylic acid with lanthanide ions have been synthesised, characterized, and examined for various applications [11,[15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Fluorescence Quenching of Two Coumarin-3-carboxylic Acids by Trivalent Lanthanide Ions

Cissé¹,

Djandé²,

Capo‐Chichi³

et al. 2016

J Fluoresc

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The effects of various trivalent lanthanide ions (acetates of Ce, Er, Eu, Nd) on the electronic absorption and fluorescence spectra of un-substituted coumarin-3-carboxylic acid (CCA) and 7-N,N-diethylamino-coumarin-3-carboxylic acid (DECCA) have been investigated in dimethylsulfoxide (DMSO) at room temperature. Depending on the lanthanide ion nature and concentration, significant spectral changes of absorption bands occurred for both coumarin derivatives. These spectral changes were attributed to the formation of ground-state complexes between the coumarin carboxylate derivatives and lanthanide ions. The fluorescence quenching of CCA and DECCA upon increasing the lanthanide ion concentration was studied. Different quantitative treatments, including the Stern-Volmer equation, the Perrin equation and a polynomial equation, were applied and compared in order to determine the nature of the quenching mechanisms for both coumarin derivatives. The results suggested the contribution of both dynamic and static quenching. Significant differences of CCA and DECCA fluorescence quenching efficiency were also observed, depending on the lanthanide ion. DECCA fluorescence lifetime measurements, performed in the absence and in the presence of Ln, confirmed a contribution of static quenching.

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“…Several plant extracts have been reported to possess antifungal activities (Khanna & Chandra, 1972;Shekhawat & Prasada, 1972;Kumar & Sachen, 1979;Singh et al, 1979;Singh et al, 1980;Singh & Singh, 1981;Gutkind et al, 1981;Tripathi et al, 1983a,b;Carron et al, 1987;Miah et al, 1990;Singh et al, 1991). Considerable success has been achieved by plant extracts in controlling some plant diseases under field conditions (Singh et al, 1984;Singh et al, 1990).…”

Section: Introductionmentioning

confidence: 95%

Antifungal Activity of an Aqueous Extract of Leaves of Garlic Creeper (Adenocilymma alliaceum Miers.)

Rana

Taneja

1999

Pharmaceutical Biology

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The antifungal activity of an aqueous extract of the leaves of garlic creeper (Adenocalyxmna alliaceum Miers.) was tested against several fungi. The extract showed a broad fungitoxic spectrum as tested by inhibition of spore germination. Exposure of the spores of Alterniaria brassicae (Berk.) Sacc. to the extract for 5 min inhibited the spore germination by 72%, and after exposure for 10 min, a 100% inhibition was found. The inhibitory principle of the extract had a good shelf life at 10°C, and was thermostable when kept for 1 h at 60°C and on boiling at 100°C for 3 min. However, the inhibitory activity of the extract decreased to 70% on boiling for 5 min and was completely lost after boiling for 10 min.

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The Fungicidal Effect of Neem (Azadirachta indica) Extracts on Some Soil-Borne Pathogens of Gram (Cicer arietinum)

Cited by 74 publications

References 10 publications

Potential of botanicals and biocontrol agents on growth and aflatoxin production by Aspergillus flavus infecting rice grains

Potential of botanicals and biocontrol agents on growth and aflatoxin production by Aspergillus flavus infecting rice grains

Fluorescence Quenching of Two Coumarin-3-carboxylic Acids by Trivalent Lanthanide Ions

Antifungal Activity of an Aqueous Extract of Leaves of Garlic Creeper (Adenocilymma alliaceum Miers.)

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