scholarly journals Laboratory Study for Biodegradation of Oxymatrine Insecticide by Single and Mixed Cultures of Fungi Isolated from Agriculture Soils in Basrah Governorate, Iraq

2019 ◽  
Vol 16 (1) ◽  
pp. 0010
Author(s):  
Raheem Et al.
Keyword(s):  
Laboratory Study ◽  
Degradation Rate ◽  
Soil Fungi ◽  
Mixed Cultures ◽  
Baseline Study ◽  
Biodegradation Process ◽  
Single And Mixed Cultures

This study focuses on the biodegradation of oxymatrine insecticide by some soil fungi isolated from four agriculture stations. The results showed that the highest degradation rate 94.66% was recorded by Ulocladium sp. at 10 days and A. niger recorded the lowest degradation rate 45.86%, while at 20 days Ulocladium sp. also showed the highest degradation rate 94.98% and the lowest degradation rate reached to 82.49% with A.niger. The mix (Exerohilum sp.+Ulocladium sp.) recorded the highest degradation rate of oxymatrine insecticide 90.22%, 88.51%, 85.34%  at 4, 8 and 12 ppm.The use of mixed isolates enhanced the biodegradation process. There is no study of oxymatrine biodegradation so this study is the first of its kind in the region which can be used as a baseline study for incoming studies

scholarly journals ABILITY OF SOME FUNGI TO BIOGEGRADE CARBENDAZIM FUNGICIDE

2021 ◽  
Vol 52 (1) ◽  
pp. 259-267
Author(s):  
Raheem & et al
Keyword(s):  
Aspergillus Niger ◽  
Mixed Culture ◽  
Degradation Rate ◽  
Soil Fungi ◽  
Mixed Cultures ◽  
Agriculture Soil ◽  
Single Culture ◽  
Degradation Rates ◽  
Fusarium Sp

This study was amid to  isolate  soil fungi from agriculture soil and study  their roles in the biodegradation of carbendazim fungicide at different concentrations were explored for two periods of incubation. Results showed the highest degradation rates of carbendazim at 4 part per million (ppm) concentration were observed by using single culture of Aspergillus niger (69.66% and 99.96% after 10 and 20 days, respectively).In the mixed cultures of Exerohilum sp., Fusarium sp., and A. niger, the maximum degradation rate (98.34%) was achieved at the same concentration after 10 days. The mixed culture of Exerohilum sp. and Fusarium sp. demonstrated the highest degradation rates of (92.14% and 55.74%) at 8 and 12 ppm concentrations, respectively, after 10 days of incubation.

Experimentelle Rotlauf- und Streptokokken-Endokarditis bei der Ratte

1971 ◽  
Vol 8 (2) ◽  
pp. 146-174 ◽  
Author(s):  
A. Kast ◽  
M. Herbst ◽  
L. Stoll
Keyword(s):  
Endothelial Cells ◽  
Mixed Culture ◽  
Bacterial Endocarditis ◽  
Mixed Cultures ◽  
The Other ◽  
Male Rats ◽  
Bacterial Colonisation ◽  
Intravenous Injections ◽  
Single And Mixed Cultures

The ability of intravenous injections of single and mixed cultures of streptococci of types A, C, D, E, G, and N, of S. viridans and of E. rhusiopathiae of serotypes A and B, to cause endocarditis in rats was tested. A mixed culture of three strains of Erysipelothrix was particularly effective, especially in male rats, whereas in all the other experiments, bacterial endocarditis seldom occurred. The endocarditis was a consequence of vasculitis and myocarditis. In most cases of valvular endocarditis subendothelial edema caused detachment of endothelial cells and provided the environment for bacterial colonisation of the valves.

Comparative study of single and mixed cultures of actinobacteria for the bioremediation of co-contaminated matrices

2018 ◽  
Vol 6 (2) ◽  
pp. 2310-2318 ◽  
Author(s):  
Juan Daniel Aparicio ◽  
Juliana Maria Saez ◽  
Enzo Emanuel Raimondo ◽  
Claudia Susana Benimeli ◽  
Marta Alejandra Polti
Keyword(s):  
Comparative Study ◽  
Mixed Cultures ◽  
Single And Mixed Cultures

Intra- and interspecific competition between biotypes B and Q of Bemisia tabaci (Hemiptera: Aleyrodidae) from Spain

2004 ◽  
Vol 94 (4) ◽  
pp. 369-375 ◽  
Author(s):  
S. Pascual ◽  
C. Callejas
Keyword(s):  
Sex Ratio ◽  
Interspecific Competition ◽  
Bemisia Tabaci ◽  
Interspecific Interactions ◽  
Developmental Rate ◽  
Mixed Cultures ◽  
Progeny Size ◽  
Moderate Effect ◽  
Single And Mixed Cultures ◽  
Biotype B

AbstractBiotypes B and Q of Bemisia tabaci (Gennadius), collected from the islands of Tenerife and Majorca respectively, were exposed to competition conditions on tomato cv. Marmande in the laboratory. Both biotypes were established in single and mixed cultures at different densities. Increased mortality of biotype Q females and immature instars was observed together with a lower rate of fecundity and progeny size compared to biotype B, when reared in single or mixed cultures. The female:male sex ratio of F1 individuals of biotype Q was higher in single than in mixed cultures. However, the sex ratio of F1 individuals of biotype B was the same in single and mixed cultures, suggesting reproductive interference. Whitefly density did not affect interspecific interactions. It had a moderate effect on developmental rate of both biotypes, and on mortality of immature instars and progeny size of biotype B only. The results indicate that under laboratory conditions the studied biotype B should displace biotype Q.

The use of single and mixed cultures for aerobic treatment of cane sugar stillage and SCP production

1987 ◽  
Vol 22 (1) ◽  
pp. 67-73 ◽  
Author(s):  
B.C. Nudel ◽  
R.S. Waehner ◽  
E.R. Fraile ◽  
A.M. Giulietti
Keyword(s):  
Cane Sugar ◽  
Mixed Cultures ◽  
Aerobic Treatment ◽  
Single And Mixed Cultures
Sign in / Sign up

Export Citation Format

Share Document