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Topic: Aspergillus parasiticus

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Massachusetts Bay Colony

	Definition of Aflatoxin
		Chemical structure of Aflatoxin B1 Aflatoxins are naturally occurring mycotoxins that act as carcinogens and are produced by two types of mold, Aspergillus flavus and Aspergillus parasiticus.
		Aspergillus flavus is common and widespread in nature and is most often found when peanuts and certain grains are grown under stressful conditions such as drought.
		The mold occurs in soil, decaying vegetation, hay, and grains undergoing microbiological deterioration and invades all types of organic substrates whenever and wherever the conditions are favorable for its growth.
	www.wordiq.com /definition/Aflatoxin (263 words)

	Physical and transcriptional map of an aflatoxin gene cluster in Aspergillus parasiticus and functional disruption of a ...
		Physical and transcriptional map of an aflatoxin gene cluster in Aspergillus parasiticus and functional disruption of a gene involved early in the aflatoxin pathway -- Trail et al.
		Physical and transcriptional map of an aflatoxin gene cluster in Aspergillus parasiticus and functional disruption of a gene involved early in the aflatoxin pathway
		parasiticus, nor-1 and ver-1, were localized to a 35-kb region on one A. parasiticus chromosome and to the genomic DNA fragment carried on a single
	aem.asm.org /cgi/content/abstract/61/7/2665 (689 words)

	Selective base for aflatoxin: News from Oxoid
		AFPA Base is a modification of Aspergillus Differential Medium, and is based on the formulation devised by Pitt, Hocking and Glenn.
		Colonies of A flavus and A parasiticus develop an intense yellow/orange colouration on the reverse of the colonies, which is a differential characteristic for these species.
		Aspergillus often appears as a green mould when present on foods such as oilseeds, edible nuts and cereals, but the aflatoxins which may be produced are not visible to the naked eye.
	www.laboratorytalk.com /news/oxo/oxo113.html (402 words)

	Characterization of the Critical Amino Acids of an Aspergillus parasiticus Cytochrome P-450 Monooxygenase Encoded by ... (Site not responding. Last check: 2007-11-01)
		Characterization of the Critical Amino Acids of an Aspergillus parasiticus Cytochrome P-450 Monooxygenase Encoded by ordA That Is Involved in the Biosynthesis of Aflatoxins B1, G1, B2, and G2 -- Yu et al.
		Characterization of the Critical Amino Acids of an Aspergillus parasiticus Cytochrome P-450 Monooxygenase Encoded by ordA That Is Involved in the Biosynthesis of Aflatoxins B
		The ordA gene was a homolog of the Aspergillus flavus ord1 gene,
	intl-aem.asm.org /cgi/content/abstract/64/12/4834 (546 words)

	A convenient and safe method to generate a large quantity of Aspergillus parasiticus spores. (Site not responding. Last check: 2007-11-01)
		A convenient and safe method to generate a large quantity of Aspergillus parasiticus spores.
		In order to examine the spore pigments in strains of Aspergillus parasiticus, we developed a method to safely generate a large quantity of spores while conserving laboratory space, resources, and time.
		In addition, the RBTLs save space since they have approximately 3X the usable surface area compared to Fernbach flasks and they can easily be stacked on their side on a shelf.
	www.fgsc.net /fgn39/brown.html (655 words)

	STUDIES ON THE MODE OF ACTION OF NEEM (AZADIRACHTA INDICA) LEAF AND SEED EXTRACTS ON MORPHOLOGY AND AFLATOXIN ...
		Morphological changes of a toxigenic isolate of Aspergillus parasiticus cultured in the presence of aqueous leaf and seed extracts obtained from neem, Azadirachta indica A. Juss (syn.
		parasiticus cultures exposed to an effective concentration of the leaf and seed extracts (50% v/v in culture media) produced approximately 90 and 75%, less aflatoxins respectively.
		Under these conditions semi-thin longitudinal and cross sections of the mycelia and vesicles showed attenuation of the cell wall at variable intervals causing deformation of the mycelium, vacuolation of the mycelial cytoplasm and vesicles.
	www.actahort.org /books/675/675_17.htm (239 words)

	Sistema Nou-Rau: Biblioteca Digital da Unicamp (Site not responding. Last check: 2007-11-01)
		Resumo: Um recente relato da presença de Aspergillus flavus e Aspergillus parasiticus em polpa de tomate industrializada brasileira motivou preocupações quanto a possível presença de micotoxinas em produtos de tomate nacionais.
		Aspergillus fIavus e Aspergillus parasiticus são conhecidos produtores de aflatoxinas, uma família de toxinas com propriedades hepatotóxicas, mutagênicas, teratogênicas e carcinogênicas.
		Aspergillus flavus and Aspergillus parasiticus are known producers of aflatoxins, a group of toxins with hepatotoxic, mutagenic, teratogenic, and carcinogenic properties.
	libdigi.unicamp.br /document/?view=vtls000289736 (415 words)

	vgn-ext-hidden_PubMed (Site not responding. Last check: 2007-11-01)
		A DNA methyl-binding column was used to isolate genomic fragments enriched for DNA-methylation from Aspergillus parasiticus.
		One of the isolated sequences presented 67% identity at the protein level with the transposase from the transposable element Tan1 of Aspergillus niger var.
		Using methylation-sensitive Southern blotting, no evidence of methylation was found in the transposase sequences in these two A. oryzae strains as well as one A. parasiticus and one Aspergillus flavus strain.
	www.asco.org /portal/site/ASCO/menuitem.a3fb42726842a82627c4c291ee37a01d/?vgnextoid=d70b3608f9958010VgnVCM100000f2730ad1RCRD&index=n&pmid=16531081 (239 words)

	Forensic Analytical - Environmental Lab Services
		Forensic Analytical's microbiology laboratory service offering of Quantitative PCR will consist of probe panels designed to identify the most common species found in situations where water intrusion, Penicillium, and Aspergillus are present.
		These are not inclusive of all species found in a clinical setting but may be used for confirmation or clearance purposes with traditional mycology methods.
		An infection control professional may also consider customizing his or her own panel with the species of interest for their project.
	www.forensica.com /_default.asp?x=pcr_panels.htm (322 words)

	Oregon State University, Corvallis, OR
		Effects of thermal stress and reduced water activity on conidia of Aspergillus parasiticus.
		Purpose: This study examined and characterized the effects of thermal stress and reduced water activity (Aw) on the conidia of Aspergillus parasiticus.
		Abstract: Conidia of Aspergillus parasiticus(an aflatoxin producer) were harvested from an agar medium, centrifuged, and resuspended in 0.05% Tween-80.
	food.oregonstate.edu /ref/water/adams_water.html (221 words)

	Fungal Genomic Cosmid and cDNA Sequencing
		Fungal (Aspergillus nidulans, Aspergillus parasiticus and Neurospora crassa) Cosmid and cDNA Sequencing
		Fungal (Aspergillus nidulans, Aspergillus flavus and Neurospora crassa) cDNA Sequencing
		The Aspergillus flavus EST's are being generated by Doris Kupfer with the technical help of Laura Hern and Yuhong Tang in collaboration with Nancy Keller.
	www.genome.ou.edu /fungal.html (964 words)

	Aspergillus parasiticus (Site not responding. Last check: 2007-11-01)
		Aspergillus parasiticus ist ein naher Verwandter von Aspergillus flavus und kann wie diese Art ebenfalls die krebserregenden Aflatoxine produzieren.
		Neuesten Forschungsergebnissen zur Folge können Vertreter der Art Aspergillus parasiticus zum Teil größere Mengen an Aflatoxinen produzieren als A. flavus und sind daher ebenfalls besonders kritisch zu sehen.
		Wie auch Aspergillus flavus kommt Aspergillus parasiticus häufig auf Erdnüssen, Pistazien und in Gewürzen vor.
	www.schimmel-schimmelpilze.de /schimmelpilz/aspergillus-parasiticus.html (132 words)

	Infotrieve Online
		The culture filtrates of five different soil fungi viz., Aspergillus flavus, Aspergillus parasiticus, Penicillium falicum, Fusarium vasinfectum and Trichoderma viride were tested for the larvicidal activity against third instar larvae of mosquito vector Culex quinquefasciatus.
		The concentrations of fungal culture filtrates used in the study ranged from 25 to 100 mg/L. The results showed that the larval mortality could be observed on 24 hours of exposure period.
		The LC5 0 values of A. flavus, A. parasiticus, P. falicum, F. vasinfectum and T. viride were 38.34, 40.39, 44.97, 50.03 and 54.16 mg/L, respectively.
	www4.infotrieve.com /newmedline/detail.asp?NameID=16880747&Session=&searchQuery=Aspergillus&count=25778 (155 words)

	Aflatoxin
		Aflatoxin B1 & B2 : produced by Aspergillus flavus and Aspergillus parasiticus.
		Aflatoxin G1 & G2 : produced by Aspergillus parasiticus.
		Aflatoxin MI : metabolite of Aflatoxin B1 in humans and animals (exposure in ng can come from mother's milk).
	www.keywordmage.net /af/aflatoxin.html (205 words)

	Perseus Lookup Tool
		Gaar, Gregory Gordon.; The induction of morphological variants in Aspergillus parasiticus /--by Gregory Gordon Gaar.
		Yip, Po Chu Shelley.; Sporicidal activities of hydrogen peroxide against Aspergillus parasiticus and Aspergillus flavus conidiospores subjected to various environmental conditions /--by Po Chu Shelley Yip.
		Gussack, Gerald Samuel.; A genetic study of aflatoxigenicity in Aspergillus flavus and Aspergillus parasiticus /--by Gerald Samuel Gussack.
	www.perseus.tufts.edu /cgi-bin/vor?lookup=Aflatoxin (455 words)

	Previous Features
		Wilmington, DE, April 28, 2004 — Arkion Life Sciences LLC announces the approval of N-Sure® brand of natamycin as a feed additive to retard the growth of Aspergillus parasiticus in broiler feeds.
		Aspergillus parasiticus is a mold which produces aflatoxin.
		N-Sure® completed the full review process for safety and efficacy by the Food and Drug Administration Division of Animal Feeds prior to approval as a feed additive per the Code of Federal Regulations (21 CFR Part 573).
	www.biotechresources.com /feature_n-sure.html (296 words)

	R-Biopharm AG : Residues - Aflatoxin EXPRESS (Site not responding. Last check: 2007-11-01)
		Competitive enzyme immunoassay for the semiquantitative analysis of aflatoxin in cereals and feed.
		Aflatoxins are naturally occurring mycotoxins produced by two strains of moulds: Aspergillus flavus and Aspergillus parasiticus.
		The most pronounced contamination has been encountered in tree nuts, peanuts and other oilseed, including corn and cottonseed.
	www.r-biopharm.com /foodandfeed/ridascreenfast_aflatoxin_express.php?p_range=foodandfeed&p_nav=constituents&layer=on&n_range=foodandfeed&act=foodandfeed&action=&id=&conti= (148 words)

	vgn-ext-hidden_PubMed (Site not responding. Last check: 2007-11-01)
		ASCO - A novel cAMP-response element, CRE1, modulates expression of nor-1 in Aspergillus parasiticus.
		The level of aflatoxin accumulation in the filamentous fungus Aspergillus parasiticus is modulated by a variety of environmental cues.
		Electrophoretic mobility shift analysis using a nor-1 promoter fragment (norR) and A. parasiticus cell protein extracts revealed specific DNA-protein complexes of different mobility on GMS and PMS solid and liquid media.
	www.asco.org /portal/site/ASCO/menuitem.a3fb42726842a82627c4c291ee37a01d/?vgnextoid=d70b3608f9958010VgnVCM100000f2730ad1RCRD&index=n&pmid=15054098 (325 words)

	A Novel cAMP-response Element, CRE1, Modulates Expression of nor-1 in Aspergillus parasiticus -- Roze et al. 279 (26): ... (Site not responding. Last check: 2007-11-01)
		A Novel cAMP-response Element, CRE1, Modulates Expression of nor-1 in Aspergillus parasiticus -- Roze et al.
		Articles by Roze, L. Articles by Linz, J. A Novel cAMP-response Element, CRE1, Modulates Expression of nor-1 in Aspergillus parasiticus
		Aspergillus parasiticus is modulated by a variety of environmental
	intl.jbc.org /cgi/content/abstract/279/26/27428 (368 words)

	Inhibiting Effect of Medicinal Mushroom Lentinus edodes (Berk.) Sing. (Agaricomycetideae) on Aflatoxin ... (Site not responding. Last check: 2007-11-01)
		The rapid growth of interest in medicinal mushrooms research is matched by the large number of disparate groups that currently publish in a wide range of publications.
		Culture filtrates of Lentinus edodes (Berk.) Sing, (shiitake mushroom) added to potato dextrose broth inoculated with a toxigenic strain of Aspergillus parasiticus Speare showed an inhibiting effect on aflatoxin production.
		parasiticus, delayed fungal growth of the toxigenic strain and inhibited aflatoxin production.
	www.edata-center.com /journals/708ae68d64b17c52,580b7b864183d53b,69a3330714c02452.html (404 words)

	ÖdevSitesi.Com - 165004-ASPERGiLLUS PARASiTiCUS GELisiMi VE AFLOTOKSiN B1 uRETiMiNDE SiYAH ZEYTiNiN SUBSTRAT OLARAK ...
		Off işte bu zor,3 Giriş Aflotoksinler aspergillus flavus, A.monimus küflerinin ikicincil metabolitlerdir ve yüksek derecede toksik ve kanserojeniklerdir.
		Aflotoksin tarımsal maddeler ve onların ürünlerinde ortaya aspergillus suşları ile ortaya çıkmış ve ulusalar arası halk sağlığını düşündürmüştür.
		tarafından verilen raporda aspergillus lipazları öncül fungal etkilere dahil edilmiştir çünkü süt mısırında (bir tür mısır galiba süt mısırı) A. Flavus ilk önce nişasta granüllerini değil lipit yapısını parçalamıştır.
	www.odevsitesi.com /odevler/2006_5/165004-aspergillus-parasiticus-gelisimi-ve-aflotoksin-b1-uretiminde-siyah-zeytinin-substrat-olarak-kullanimi.htm (517 words)

	ARS Project: Genetic Regulation of Development and Aflatoxin Synthesis in Aspergillus Parasiticus (405215)
		Isolation and characterization of experimentally-induced non-aflatoxigenic variant strains of Aspergillus parasiticus.
		Genetic evaluation of other A. parasiticus mutant strains with reduced sporulation, altered conidial morphology, and sclerotia formation.
		Variant or mutant strains of Aspergillus parasiticus, with altered secondary metabolite production, will be produced either by serial transfers of nonsporulating mycelia on solid media or by genetic engineering involving specific aflatoxin pathway genes.
	www.ars.usda.gov /research/projects/projects.htm?accn_no=405215 (126 words)

	Store
		Abstract: Peanut kernels inoculated with Aspergillus parasiticus conidia and uninoculated kernels were gamma irradiated with 0 to 1.5 kGy using
		parasiticus and reducing the population of natural mold contaminants.
		However, elimination of these molds was not achieved.
	bookstore.ift.org /store/iftstore/newstore.cgi?itemid=26086&view=item&categoryid=1102&categoryparent=1102&page=1&loginid=5086767 (234 words)

	[No title]
		Synthesis of sterigmatocytin derivatives and their biotransformation to aflatoxins by a blocked mutant of Aspergillus parasiticus
		Seven alkyl and aryl homologues of O-methylsterigmatocystin (OMST) were synthesised and fed in separate experiments to a mutant of Aspergillus parasiticus capable of converting sterigmatocystin (ST) to aflatoxin B_1 (AFB_1).
		Their conversion to AFB_1 was followed over a time period and it was found that O-propylsterigmatocystin (OPRST) was converted to AFB_1 more rapidly than O-ethylsterigmatocystin (OEST) or OMST or ST itself.
	219.239.34.169 /was40/detail?record=137990&channelid=46162 (156 words)

	Turkish Journal of Veterinary and Animal Sciences (Site not responding. Last check: 2007-11-01)
		Effect on Aflatoxin Formation of Different Storage Conditions in Tulum Cheese inoculated with Aspergillus parasiticus NRRL 2999
		spores/g of aflatoxin-producing Aspergillus parasiticus NRRL 2999 strain.
		Data obtained in this study indicated that storage time and temperature, humidity and aflatoxigenic mould contamination significantly affected aflatoxin formation in Tulum cheese.
	mistug.tetm.tubitak.gov.tr /~bdyim/abs.php3?dergi=vet&rak=0208-80 (288 words)

	Characterization of aflatoxin-producing fungi outside of Aspergillus section Flavi -- Cary et al. 97 (2): 425 -- ...
		Characterization of aflatoxin-producing fungi outside of Aspergillus section Flavi -- Cary et al.
		Characterization of aflatoxin-producing fungi outside of Aspergillus section Flavi
		Most aspergilli that produce aflatoxin are members of Aspergillus
	www.mycologia.org /cgi/content/abstract/97/2/425 (222 words)

	ARS Project: Regulation of Aflatoxin Production in Aspergillus Parasiticus (409964)
		To determine the molecular basis for the phenomenon of non-production of aflatoxin in certain members of the A. flavus group of the fungi with a view to understanding the global regulation of toxin synthesis and the convergent evolution of aflatoxin biosynthesis.
		The present proposal is centered upon previously isolated A. parasiticus sec- (for secondary metabolism minus) strains, that display altered morphology and sporulation.
		Recent work from our laboratory has shown that a mutation in aflR coding or promoter region is not responsible for the sec-phenotype.
	www.ars.usda.gov /research/projects/projects.htm?accn_no=409964 (194 words)

	Pilze
		Ocimum basilicum hemmte 22 Pilzstämme, darunter Aspergillus (Dube, Upadihay, Tripathi, 1989)
		Origanum majorana wirkt besonders ausgeprägt gegen Aspergillus niger, aber auch gegen A. flavus, A. ochraceus, A. parasiticum und Trichoderma viride (Deans, Svoboda, 1990)
		Pimpinella anisum und Cinnamomum vera wurden erfolgreich gegen Aspergillus parasiticus getestet (Tiwari, Dikshit, Chandan and al., 1983)
	www.aromapraxis.de /Aromatherapie/Atherische_Ole/Wirkungen/Pilze/pilze.html (362 words)

	Aspergillus parasiticus Details, Meaning Aspergillus parasiticus Article and Explanation Guide
		Aspergillus parasiticus Details, Meaning Aspergillus parasiticus Article and Explanation Guide
		Aspergillus parasiticus Guide, Meaning, Facts, Information and Description
		Page Contains Information, Facts Details or Explanation Guide About Aspergillus parasiticus
	www.e-paranoids.com /a/as/aspergillus_parasiticus.html (59 words)

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