title: Modeling the Growth of Archaeon Halobacterium halobium Affected by Temperature and Light.
abstract: The objective of this study was to develop sigmoidal models, including three-parameter (Quadratic, Logistic, and Gompertz) and four-parameter models (Schnute and Richards) to simulate the growth of archaeon Halobacterium halobium affected by temperature and light. The models were statistically compared by using t test and F test. In the t test, confidence bounds for parameters were used to distinguish among models. For the F test, the lack of fit of the models was compared with the prediction error. The Gompertz model was 100 % accepted by the t test and 97 % accepted by the F test when the temperature effects were considered. Results also indicated that the Gompertz model was 94 % accepted by the F test when the growth of H. halobium was studied under varying light intensities. Thus, the Gompertz model was considered the best among the models studied to describe the growth of H. halobium affected by temperature or light. In addition, the biological growth parameters, including specific growth rate, lag time, and asymptote changes under Gompertz modeling, were evaluated.
authors.affiliation: Department of Biological and Agricultural Engineering, North Carolina State University, Raleigh, NC, 27695, USA.
authors.forename: Hao
authors.initials: H
authors.lastname: Lu
authors.affiliation: Department of Biological and Agricultural Engineering, North Carolina State University, Raleigh, NC, 27695, USA. wyuan2@ncsu.edu.
authors.forename: Wenqiao
authors.initials: W
authors.lastname: Yuan
authors.affiliation: Department of Biological and Agricultural Engineering, North Carolina State University, Raleigh, NC, 27695, USA.
authors.forename: Jay
authors.initials: J
authors.lastname: Cheng
authors.affiliation: Department of Molecular and Structural Biochemistry, North Carolina State University, Raleigh, NC, 27695, USA.
authors.forename: Robert B
authors.initials: RB
authors.lastname: Rose
authors.affiliation: Department of Biological and Agricultural Engineering, North Carolina State University, Raleigh, NC, 27695, USA.
authors.forename: John J
authors.initials: JJ
authors.lastname: Classen
authors.affiliation: Department of Biological and Agricultural Engineering, North Carolina State University, Raleigh, NC, 27695, USA.
authors.forename: Otto D
authors.initials: OD
authors.lastname: Simmons
mesh_terms: D019617:Halobacterium salinarum / Q000254:growth & development*; D006358:Hot Temperature; D008027:Light; D008954:Models, Biological
keywords: Bacteriorhodopsin; Halobacterium holobium; Light intensity effect; Sigmoidal model; Temperature effect