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Virulence Structure of Blumeria graminis f. sp. avenae Populations in Poland across 2014-2015
Magdalena Cieplak,Katarzyna Terlecka,Tomasz Ociepa,Beata Zimowska,Sylwia Okoń 한국식물병리학회 2021 Plant Pathology Journal Vol.37 No.2
The purpose of this study was to determine the viru- lence structure of oat powdery mildew (Blumeria grami- nis f. sp. avenae, Bga) populations in Poland collected in 2014 and 2015. Powdery mildew isolates were collected from 18 locations in Poland. In total, nine lines and cultivars of oat, with different mildew resistance genes, were used to assess virulence of 180 isolates. The results showed that a significant proportion of the Bga isolates found in Poland were virulent to differentials with Pm1, Pm3, Pm6, and Pm3 + Pm8 genes. In contrast Pm4, Pm5, Pm2, and Pm7 genes were classified as resistant to all pathogen isolates used in the experiment. Based on obtained results we can state that there are differences in virulence pattern and diversity parameters between sites and years, but clear trends are not deducible.
Tohid N. Borhani,Eni Oko,Meihong Wang 한국공업화학회 2019 Journal of Industrial and Engineering Chemistry Vol.75 No.-
Rotating packed bed (RPB) system has applications in CO2 removal using chemical solvents which canreduce the size about ten times compared to common packed bed (PB) system. In this study, RPB stripperusing monoethanolamine (MEA) solution is modelled in gPROMS1 software. The model has beenvalidated using experimental data from literature and show good agreement. In addition to strippermodelling and validation, the process analysis is accomplished in this study by assessing the influence offour parameters namely rotor speed, reboiler temperature,flow rate of rich liquid, and pressure ondesorption efficiency and desorption energy.
A Theoretical Modeling for Suggesting Unique Mechanism of Adolescent Calcium Metabolism
Lee, Wang-Hee,Cho, Byoung-Kwan,Okos, Martin R. Korean Society for Agricultural Machinery 2013 바이오시스템공학 Vol.38 No.2
Purpose: Modeling has been used for elucidating the mechanism of complex biosystems. In spite of importance and uniqueness of adolescent calcium (Ca) metabolism characterized by a threshold Ca intake, its regulatory mechanism has not been covered and even not proposed. Hence, this study aims at model-based proposing potential mechanisms regulating adolescent Ca metabolism. Methods: Two different hypothetic mechanisms were proposed. The main mechanism is conceived based on Ca-protein binding which induces renal Ca filtration, while additional mechanism assumed that active renal Ca re-absorption regulated Ca metabolism in adolescents. Mathematical models were developed to represent the proposed mechanism and simulated them whether they could produce adolescent Ca profiles in serum and urine. Results: Simulation showed that both mechanisms resulted in the unique behavior of Ca metabolism in adolescents. Based on the simulation insulin-like growth factor-1 (IGF-1) is suggested as a potential regulator because it is related to both growth, a remarkable characteristic of adolescence, and Ca metabolism including absorption and bone accretion. Then, descriptive modeling is employed to conceptualize the hypothesized mechanisms governing adolescent Ca metabolism. Conclusions: This study demonstrated that modeling is a powerful tool for elucidating an unknown mechanism by simulating potential regulatory mechanisms in adolescent Ca metabolism. It is expected that various analytic applications would be plausible in the study of biosystems, particularly with combination of experimental and modeling approaches.
A Theoretical Modeling for Suggesting Unique Mechanism of Adolescent Calcium Metabolism
( Wang Hee Lee ),( Byoung Kwan Cho ),( Martin R. Okos ) 한국농업기계학회 2013 바이오시스템공학 Vol.38 No.2
Purpose: Modeling has been used for elucidating the mechanism of complex biosystems. In spite of importance and uniqueness of adolescent calcium (Ca) metabolism characterized by a threshold Ca intake, its regulatory mechanism has not been covered and even not proposed. Hence, this study aims at model-based proposing potential mechanisms regulating adolescent Ca metabolism. Methods: Two different hypothetic mechanisms were proposed. The main mechanism is conceived based on Ca-protein binding which induces renal Ca filtration, while additional mechanism assumed that active renal Ca re-absorption regulated Ca metabolism in adolescents. Mathematical models were developed to represent the proposed mechanism and simulated them whether they could produce adolescent Ca profiles in serum and urine. Results: Simulation showed that both mechanisms resulted in the unique behavior of Ca metabolism in adolescents. Based of the simulation insulin-like growth factor-1 (IGF-1) Is suggested as a potential regulator because it is related to both growth, a remarkable characteristic of adolescence, and Ca metabolism including absorption and bone accretion. Then, descriptive modeling is employed to conceptualize the hypothesized mechanisms governing adolescent Ca metabolism. Conclusions: This study demonstrated that modeling is a powerful tool for elucidating an unknown mechanism by simulating potential regulatory mechanisms in adolescent Ca metabolism. It is expected that various analytic applications would be plausible in the study of biosystems, particularly with combination of experimental and modeling approaches.