Antifungal potentiality of some plant extracts against<i>Fusarium</i>sp.

Satish, S.; Raghavendra, M. P.; Raveesha, K. A.

doi:10.1080/03235400701287578

Cited by 56 publications

(48 citation statements)

References 17 publications

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“…Distilled water, used as negative control, showed no zone of inhibition as expected. The fungi-toxic effect of aqueous extracts of P. juliflora against Aspergillus species [21] and Fusarium species [22] have been reported, which is in line with present result.…”

Section: Thermal Stability and Antifungal Activity Of Aqueous Extractssupporting

confidence: 81%

Antifungal Activity of Some Plant Extracts against (Colletotrichum Musae) the Cause of Postharvest Banana Anthracnose

Bazie¹,

Ayalew²,

Woldetsadik³

2014

J Plant Pathol Microbiol

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Materials and Methods Experimental materialsFresh leaves of 21 plant species were collected from local sources. The identity of these plant species was confirmed at Haramaya University Herbarium where voucher specimens are deposited. The plants included Acacia albida, A. seyal Isolation of the pathogen and inoculum preparationBanana fruits showing anthracnose disease symptoms were collected and used for isolation of Colletotrichum musae. Pure culture was maintained on PDA medium. Inoculum was prepared by dislodging the surface of 10 days old culture with sterile distilled water and adjusted to 105 ml -1 using a hemacytometer. Extraction of plant samplesExtraction was done using methanol and water. The methanolic extracts were used for preliminary screening of the plant specimens for their potency against the fungal pathogen, while aqueous extracts were used for further testing. Fifty gram of powdered samples of each of the plant specimens was extracted with 250 ml solvent (methanol or water). The methanolic and aqueous extracts were filtered and reduced to dryness on rotary evaporator under vacuum at 40°C and 60°C water bath temperatures, respectively [8,9]. The extract of each plant was weighed, re-dissolved and then tested for antifungal activities. In vitro assay of plant extractsPaper disc method: The method as described by [9] was used. AbstractThe present study was conducted to determine the efficacy of extracts of some plant species against Colletotrichum musae. Methanolic extracts of 21 plant species were screened for their inhibitory effect against C. musae using paper disc method and spore germination assay. Among them, extract of Prosopis juliflora exhibited superior antifungal activity (30.7 mm), followed by Acacia albida (19 mm) as compared to nill in the control. On the other hand, carbendazim, which was used as a standard chemical check, demonstrated by far the highest inhibition zone of 51.7 mm diameter. Extracts from A. albida, Dovalis abyssinica and P. juliflora reduced conidial germination to 0.2, 0.5 and 0.3%, respectively, which didn't vary statistically from 1.2% in Carbendazim. Six plant species, viz., A. albida, Azadirachta indica, Argemone mexicana, D. abyssinica, P. juliflora and Vernonia amygdalina, that showed high to moderate antifungal activity in the preliminary screening, were further tested for their thermal stability at 60°C and for the efficacy of their aqueous extracts against C. musae. Extracts of the tested plant species were found to be heat stable and aqueous extracts of A. albida showed the highest antifungal activity (18 mm), followed by P. juliflora (12.3 mm). Further studies need to be undertaken to isolate the active compounds from those extracts with fungicidal potential.

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Section: Thermal Stability and Antifungal Activity Of Aqueous Extractssupporting

confidence: 81%

Antifungal Activity of Some Plant Extracts against (Colletotrichum Musae) the Cause of Postharvest Banana Anthracnose

Bazie¹,

Ayalew²,

Woldetsadik³

2014

J Plant Pathol Microbiol

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“…The crude plant extracts with antimicrobial potential possess twin desirable features of crop disease control and biodegradability which reduces health and environmental risks. In vitro fungitoxic potential of plant extracts has been reported by various studies (Satish et al 2009;Abiala et al 2011;Anamika and Simon 2011;Javaid and Siddique 2011;Jadon and Shah 2012). In vivo, most plant extracts used in the spray form act by contact antimicrobial action, killing or inactivating air-borne pathogen spores as they land on plant surface (Leksomboon et al 2001;Govindappa et al 2011).…”

Section: Introductionmentioning

confidence: 93%

Screening of plant extracts for organic management of downy mildew of sorghum

Singh

Garampalli

2012

Archives Of Phytopathology And Plant Protection

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Antipathogenic potential of 38 plants was evaluated in the form of aqueous extracts against Peronoclerospora sorghi, causing downy mildew of sorghum. Conidial suspension and plant extracts were mixed individually and allowed to stand for 5 min and then used to inoculate the host by sprout-dip method. The sprouts thus inoculated were grown in pots, and the disease incidence was observed. Eight plant extracts (Cicer areatinum, Datura metel, Croton sparsiflorus, Parthenium hysterophorus, Nerium oleander, Chromolaena odorata, Duranta repens and Oxalis latifolia) at 20% concentration performed at par with chemical fungicide (Mancozeb 75%) by exhibiting total suppression of disease incidence to 0%, when compared with 64.1% of negative control. Organic management of airborne inoculum of downy mildew of sorghum is feasible and preferable when compared with chemical control methods, considering human and environmental health concerns. The use of water extract keeps the technology simple so that it can be directly prepared and used by the farmers. Short-listing of eight most effective water extracts would help in self-reliance of farmers, reducing their dependence on commercial products.

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“…Plant products have shown promising results for the control of soil-borne pathogens (Javaid and Saddique 2012;Satish et al 2009). There are numerous reports of control of soil-borne disease by addition of compost to the soil in green house and field conditions.…”

Section: Mechanism Of Actionmentioning

confidence: 99%

Evaluation of uncomposted botanical-based soil amendments for organic management of downy mildew of Sorghum

Singh

Garampalli

2013

Archives Of Phytopathology And Plant Protection

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Uncomposted dried, powdered biomass of 38 selected botanicals was evaluated as soil amendments in a pot experiment for their potential to suppress downy mildew of sorghum caused by soil-borne oosporic inoculum of Perenosclerospora sorghi. A negative control showed 11.1% disease incidence. Six botanicals proved effective in form of dry biomass powder at 0.5% (w/w) amendment rate to control infection by oospores (Allium cepa 0%, Lantana camara 1.6%, Polyalthia longofolia 0%, Hyptis suaveolens 1.5%, Eucalyptus globulus 0% and Nerium oleander 1.6% of disease incidence). Dry powders are not only effective in disease suppression but confer additional benefits over composts like reduced bulk, increased shelf-life, consistent composition and results.

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Antifungal potentiality of some plant extracts againstFusariumsp.

Cited by 56 publications

References 17 publications

Antifungal Activity of Some Plant Extracts against (Colletotrichum Musae) the Cause of Postharvest Banana Anthracnose

Antifungal Activity of Some Plant Extracts against (Colletotrichum Musae) the Cause of Postharvest Banana Anthracnose

Screening of plant extracts for organic management of downy mildew of sorghum

Evaluation of uncomposted botanical-based soil amendments for organic management of downy mildew of Sorghum

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