Modeling of the kinetics biodegradation of paclobutrazol in two soils of the semiarid northeast Brazil

Química Nova

Antonino, Antonio Celso Dantas¹  Vaz, Fernanda Leitão¹  Martins, Jean Manuel Fonseca¹  Gouveia, Ester Ribeiro¹  Maciel Netto, André¹  Universidade Federal de Pernambuco, Recife, Brasil¹  Univ. Grenoble I, França¹  Afonso, Antonio Cláudio Marques¹ 

关键词: paclobutrazol;    biodegradation;    modeling.;   

DOI  :  10.1590/S0100-40422012000100015

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

Mathematical models can help to prevent high levels of toxic substances in soil or fruits of plants treated with pesticides and indicate that such substances should be systematically monitored. The aim of this research was to study the kinetics of paclobutrazol biodegradation by soil native bacteria using mathematical models. Three models were used to assess the kinetics of paclobutrazol biodegradation obtained experimentally. Excellent fits were obtained using dual kinetic and logistic models. The use of glycerol as additional carbon source increased the biodegradation of PBZ and consequently decreased the time required for a given PBZ initial concentration be halved.

【 授权许可】

Unknown