Patulin produced by an Aspergillus clavatus isolated from feed containing malting residues associated with a lethal neurotoxicosis in cattle

2004 ◽  
Vol 158 (4) ◽  
pp. 419-426 ◽  
Author(s):  
Monica Sabater-Vilar ◽  
Roel F. M. Maas ◽  
Hendrik De Bosschere ◽  
Richard Ducatelle ◽  
Johanna Fink-Gremmels
Keyword(s):  
2020 ◽  
Vol 26 (2) ◽  
Author(s):  
Ritu Kunjam ◽  
V.K. Kanungo ◽  
S.K. Jadhav

Increased urbanization and industrialization in recent time has made a significant impact on air quality of the area. The atmosphere is rich in propagule of different fungal species. The investigation on airborne Aspergillus contribution was conducted in Periphery of Raipur city from February, 2018 to March, 2019 with the help of gravity petriplate containing PDA (Potato Dextrose Agar) medium. In this study, total 11 species of Aspergillus were recorded. The percentage frequency and percentage contribution of different Aspergillus species were different in different seasons. Aspergillus niger was most frequent throughout the year followed by Aspergillus fumigatus, A. flavus, and A. nidulans etc. While Aspergillus clavatus, and A. versicolor, A. aculeatus were the least frequent species. The result indicated the highest percentage contribution of Aspergillus niger (43.29 percent) followed by A. fumigatus (9.02percent), A. flavus (8.42 percent) while A. clavatus (0.21 percent). The objective of the studies was to determine a seasonal variation in concentrations of Aspergillus on the basis of meteorological parameters.


2011 ◽  
Vol 66 (7-8) ◽  
pp. 345-352 ◽  
Author(s):  
Rahul V. Patel ◽  
Premlata Kumari ◽  
Kishor H. Chikhalia

A series of 1,3,5-triazine derivatives that contain 4-amino-2-trifl uoromethyl-benzonitrile, 8-hydroxyquinoline, and different piperazines as substituents at the carbon atoms of the triazine ring have been synthesized by a simple and efficient synthetic protocol. The chemical structures of the compounds were elucidated with the aid of IR, 1H NMR and 13C NMR spectroscopy, and elemental analysis. The antimicrobial activity of the compounds was tested against seven bacteria (Staphylococcus aureus MTCC 96, Bacillus cereus MTCC 619, Escherichia coli MTCC 739, Pseudomonas aeruginosa MTCC 741, Klebsiella pneumoniae MTCC 109, Salmonella typhi MTCC 733, Proteus vulgaris MTCC 1771) and four fungi (Aspergillus niger MTCC 282, Aspergillus fumigatus MTCC 343, Aspergillus clavatus MTCC 1323, Candida albicans MTCC 183). The results indicate that some of the novel s-triazines have noteworthy activity in minimum inhibitory concentration as well as agar diffusion tests.


1954 ◽  
Vol 60 (1) ◽  
pp. 15-26
Author(s):  
JOSEPH FORGACS ◽  
WALTER T. CARLL ◽  
ALBERT S. HERRING ◽  
BILL G. MAHLANDT
Keyword(s):  

2021 ◽  
Vol 7 (1) ◽  
pp. 932-940
Author(s):  
Pranami Chowdhury ◽  
Shamim Shamsi ◽  
Hasna Hena Begum ◽  
Md Abul Bashar

Fifty six spotted rice grain samples of four commercially cultivated rice varieties namely BRRI 28, 29, Kalijira and Pajam were collected from 14 different districts of Bangladesh. Forty rice samples (Hybrid 2,3,4, BR7,11,12,14,16,22,23,25,26and BRRI28 to BRRI 55) were also collected from Bangladesh Rice Research Institute at Joydevpur. Twenty-fivespecies of fungi belonging to 15 genera were associated with these rice varieties. The isolated fungi were Alternaria alternata, Aspergillus clavatus, A. flavus, A. fumigatus, A.niger, A. ochraceus, A.oryzae, A. terreus, Chaetomium globosum, Cladosporium cladosporioides, Colletotrichum gloeosporioides, Curvularia lunata, C. lunata var. aeria, Drechslera oryzae, Fusarium moniliforme, F. oxysporum, F. solani, Microdochium oryzae, Nigrospora oryzae, Penicillium spp., Pestalotiopsis guepinii, Sarocladium oryzae and Trichoderma viride. Amongst these fungi nine i.e. Alternaria alternata (Fr.) Keissler, Aspergillus flavus Link, Curvularia lunata (Wakker) Boedijn, Drechsler aoryzae Breda de Haan (Subramanian and Jain), Fusarium moniliforme Sheldon, F. solani (Mart.) Sacc., Microdochium oryzae (Hashloka and Yokogi) Sam. and Hal., Pestalotiopsis guepinii (Desm.) Stay. and Sarocladium oryzae (Sawada) W. Gams and D. Hawks were found to be pathogenic to rice seeds. The most predominant fungus was D. oryzae which was followed by A. flavus and the least incidence was observed in case of F. solani and P. guepinni. Bioresearch Commu. 7(1): 932-940, 2021 (January)


Author(s):  
Z. Kozakiewicz

Abstract A description is provided for Aspergillus clavatus. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. DISEASES: On Insects. Although not known to be a pathogen, it has been isolated from insects (Raper & Fennell, 1965), particularly dead adult bees (Batra et al., 1973). On Man. Aspergillus clavatus may cause allergic alveolitis in man (Channell et al., 1965) GEOGRAPHICAL DISTRIBUTION: Worldwide distribution, particularly in tropical and sub-tropical soils.


2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
K. R. Joshi ◽  
A. J. Rojivadiya ◽  
J. H. Pandya

Two new series of copper(II) and nickel(II) complexes with two new Schiff base ligands 2-((2,4-dimethylphenylimino)methyl)-6-methoxy-4-nitrophenol and 2-((3,4-difluorophenylimino)methyl)-6-methoxy-4-nitrophenol have been prepared. The Schiff base ligands were synthesized by the condensation of 2-hydroxy-3-methoxy-5-nitrobenzaldehyde with 2,4-dimethylaniline or 3,4-difluoroaniline. The ligands and their metal complexes have been characterized by IR, 1H NMR, mass and electronic spectra and TG analysis. The Schiff base ligands and their metal complexes were tested for antimicrobial activity against Gram positive bacteria Staphylococcus aureus, and Streptococcus pyogenes and Gram negative bacteria Escherichia coli, and Pseudomonas aeruginosa and fungus Candida albicans, Aspergillus niger, and Aspergillus clavatus using Broth Dilution Method.


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