Results 21 to 30 of about 3,804 (200)

Damage caused by different inoculum levels of Aspergillus ochraceus on the vigour of soybean seeds [PDF]

open access: yesSemina: Ciências Agrárias, 2014
The incidence and severity of Aspergillus ochraceus can reduce seed quality. In this study, we aimed to study the physiological quality of soybean seeds naturally infected with A. ochraceus. Seeds of soybean cv. Conquest with different levels of inoculum
Fernando da Silva Rocha   +3 more
doaj   +2 more sources

Isolation, Diagnosis and Characterization of Aspergillus sp from Tea Bags Samples and Its Ability to Produce Ochratoxin A

open access: yesTikrit Journal for Agricultural Sciences, 2021
This study was carry out to investigate from the contamination of packed tea samples collected from different markets with Aspergillus species. The extent of contamination of these samples with Ochratoxin A (OTA) was examined by using ELISA and the ...
Firas abdul-kareem   +2 more
doaj   +1 more source

Mycotoxicity of Aspergillus ochraceus to Chicks [PDF]

open access: yesApplied Microbiology, 1970
Five isolates of Aspergillus ochraceus , obtained from peanuts, were grown separately on sterile, moist corn for 14 days and fed to 1-day-old Babcock B-300 cockerels to evaluate their toxic effects. Two isolates were highly toxic, causing death of all birds during the 1st week of the experiment.
B, Doupnik, J C, Peckham
openaire   +2 more sources

First Insight into the Degradome of Aspergillus ochraceus: Novel Secreted Peptidases and Their Inhibitors. [PDF]

open access: yesInt J Mol Sci
Aspergillus fungi constitute a pivotal element within ecosystems, serving as both contributors of biologically active compounds and harboring the potential to cause various diseases across living organisms. The organism’s proteolytic enzyme complex,
Shestakova A   +4 more
europepmc   +2 more sources

Influence of physiological factors on growth, sporulation and ochratoxin A/B production of the new Aspergillus ochraceus grouping [PDF]

open access: yes, 2009
Recently, new species within the Aspergillus section Circumdati group responsible for ochratoxin production were reported. This study has examined the impact of interactions between water activity (aw, 0.99-0.90), temperature (20-35 °C) on growth ...
N. Magan   +3 more
core   +1 more source

Mycoviruses mediate mycotoxin regulation in Aspergillus ochraceus [PDF]

open access: yesEnvironmental Microbiology, 2018
Summary To date, no demonstration of a direct correlation between the presence of mycoviruses and the quantitative or qualitative modulation of mycotoxins has been shown. In our study, we transfected a virus‐free ochratoxin A (OTA)‐producing isolate of Aspergillus ochraceus ...
Nerva L   +7 more
openaire   +2 more sources

Aspergillus westerdijkiae polyketide synthase gene “aoks1” is involved in the biosynthesis of ochratoxin A [PDF]

open access: yes, 2009
OchratoxinA (OTA) is a potential nephrotoxic, teratogenic, immunogenic, hepatotoxic and carcinogenic mycotoxin, produced by Aspergillus westerdijkiae NRRL 3174.
Atoui, Ali   +4 more
core   +1 more source

Ochratoxin Production by the Aspergillus ochraceus Group and Aspergillus alliaceus [PDF]

open access: yesApplied and Environmental Microbiology, 2002
ABSTRACT Ochratoxin A is a toxic and carcinogenic fungal secondary metabolite; its presence in foods is increasingly regulated. Various fungi are known to produce ochratoxins, but it is not known which species produce ochratoxins consistently and which species cause ochratoxin contamination of various crops.
Paul, Bayman   +4 more
openaire   +2 more sources

Cloning and characterization of novel methylsalicylic acid synthase gene involved in the biosynthesis of isoasperlactone and asperlactone in Aspergillus westerdijkiae [PDF]

open access: yes, 2009
Aspergillus westerdijkiae is the main producer of several biologically active polyketide metabolites including isoasperlactone and asperlactone. A 5298 bp polyketide synthase gene ‘‘aomsas” has been cloned in Aspergillus westerdijkiae by using gene ...
Atoui, Ali   +10 more
core   +1 more source

Type C feruloyl esterase from Aspergillus ochraceus: A butanol specific biocatalyst for the synthesis of hydroxycinnamates in a ternary solvent system

open access: yesElectronic Journal of Biotechnology, 2018
Background: Aspergillus ochraceus was isolated from coffee pulp and selected as an interesting hydroxycinnamoyl esterase strain producer, using an activity microplate high-throughput screening method.
Evelyn Romero-Borbón   +7 more
doaj   +1 more source

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