نتایج جستجو برای: alternata alternata

تعداد نتایج: 1397  

Journal: :Indian Journal of Experimental Biology 2023

Trichoderma asperellum is one of the plant growth-promoting fungi (PGPF) presently marketed as biopesticide, biofertilizer and in soil amendments, due to its ability protect plants, enhance vegetative growth reduce pathogen populations. Keeping this view, here, we assessed efficacy against pathogens medicinal plants vitro field conditions Leaf spot disease Green leaf Tulsi (Ocimum basilicum). W...

Journal: :Applied and environmental microbiology 1978
K Söderhäll E Svensson T Unestam

Alternaria alternata (Fr.) Keissler, grown in drop culture, produced alternariol and alternariol monomethyl ether in late growth phase. Production was almost completely inhibited when the fungal cultures were exposed to white light (180 W/m2), although mycelial dry weight was not significantly affected. The fungus was most sensitive to light during the exponential growth phase. Twelve hours of ...

Journal: :Caliphate Journal of Science and Technology 2023

This study investigated the effectiveness of seeds Azadrachta indica plant extract as botanical antimicrobials on some fungi isolates associated with carrot diseases in Sokoto State Nigeria. The were isolated from diseased plants selected farms (Moreh, Badageni and Ruggar Liman farms) area. was extracted using ethanol. common Alternaria alternata, Fusarium oxysporum, Mucor hiemalis Penicillium ...

Journal: :Journal of virology 1988
H S Shepherd

Double-stranded (ds) RNAs associated with viruslike particles have been found in six isolates of Alternaria alternata which produce tentoxin. Isolates had from one to three dsRNAs ranging in size from 1.0 to 5.1 kilobase pairs. In two isolates the dsRNAs were associated with 30-nm particles. No dsRNA was detected in any of six other tentoxin-producing isolates or nine isolates which did not pro...

2015
Miguel Blanca Paloma Campo Carmen Rondon Esther Barrionuevo Sanchez Natalia Blanca-López Veronique Godineau Maria Auxiliadora Guerrero Maria Jose Torres

Methods Twenty-nine patients with seasonal SAR (positive SPT to grass and/or olive pollen) with well-defined symptoms during pollen season in addition to nasal symptoms throughout the year were included. Clinical questionnaires, skin tests, serum specific IgE, nasal levels of tryptase and eosinophil cationic protein, and nasal allergen provocation test (NAPT) with grass, olive, D. pteronyssinus...

Journal: :Zeitschrift fur Naturforschung. C, Journal of biosciences 2010
Hui Xu Qin Wang Wen-Bin Yang

Nine indole derivatives were evaluated in vitro against Fusarium graminearum, Alternaria alternata, Helminthosporium sorokinianum, Pyricularia oryzae, Fusarium oxysporum f. sp. vasinfectum, Fusarium oxysporum f. sp. cucumarinum, and Alternaria brassicae. Most of the compounds were found to possess antifungal activities. Especially compounds 2, 5, 8, and 9 exhibited broad-spectrum antifungal act...

Journal: :journal of biopesticides 2022

One of the main obstacles to feeding world is fungal leaf spot disease, which has a negative impact on plants' photosynthetic areas and significantly lowers crop quality output. To manage fungi that pose serious hazard both humans environment, various chemical fungicides are utilized. The goal current study was determine whether local isolates three Trichoderma spp. (Trichoderma viride, harzian...

Journal: :Journal of biomedical research & environmental sciences 2023

Background: Some fungi have double host attacks for animals and plants, among them Alternaria alternata. Using a local medicinal plant such as Ephedra alanda is one way to fight its spreading. Aim: Evaluate the effect of different extracts against mold Material Methods: This work used solvent by successive extraction (Hexane, Chloroform, Ethyl acetate, Methanol) total alkaloids evaluate Anti- a...

Journal: :Toxicon : official journal of the International Society on Toxinology 1993
H K Abbas R F Vesonder

An isolation and purification procedure is described for AAL-toxin, a secondary metabolite produced by Alternaria alternata. The method involves growth of the fungus on rice media, extraction with chloroform followed by methanol: water from fungus-infested rice, and purification of the aqueous layer that contains AAL-toxin by using chromatography methods. The AAL-toxin was of type A, and white ...

2008
Ashok K. Singh M. B. Pandey Sarita Singh Anil K. Singh U. P. Singh

The alkaloid securinine was assessed against spore germination of some plant pathogenic and saprophytic fungi (Alternaria alternata, Alternaria brassicae, Alternaria brassicicola, Curvularia lunata, Curvularia maculans, Curvularia pallenscens, Colletotrichum musae, Colletotrichum sp., Erysiphe pisi, Helminthosporium echinoclova, Helminthosporium spiciferum, Heterosporium sp.). Spore germination...

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