Previous research demonstrated that aflatoxin contamination in corn is reduced by field application of wheat grains pre-inoculated with the non-aflatoxigenic Aspergillus flavus strain NRRL 30797. We evaluated the reliability and efficiency of replacing wheat grains with the novel bioplastic formulation Mater-Bi(R) to serve as a carrier matrix to formulate strain NRRL 30797. Mater-Bi(R) granules were inoculated with a conidial suspension of NRRL 30797 to achieve a final cell density of log 7 conidia/granule. Incubation of 20-g soil samples receiving a single Mater-Bi(R) granule for 60-days resulted in log 4.2 to 5.3 propagules of A. flavus/g soil for microbiologically active and sterilized soil, respectively. The bioplastic formulation was highly stable; Mater-Bi(R) is a suitable substitute for biocontrol applications of A. flavus NRRL 30797.
ABBAS HAMED K, ACCINELLI CESARE, ZABLOTOWICZ ROBERT M, SACCA MARIA L, WILKINSON JEFF (2012). Novel Granular Bioplastic Biocontrol Composition.
Novel Granular Bioplastic Biocontrol Composition
ACCINELLI, CESARE;
2012
Abstract
Previous research demonstrated that aflatoxin contamination in corn is reduced by field application of wheat grains pre-inoculated with the non-aflatoxigenic Aspergillus flavus strain NRRL 30797. We evaluated the reliability and efficiency of replacing wheat grains with the novel bioplastic formulation Mater-Bi(R) to serve as a carrier matrix to formulate strain NRRL 30797. Mater-Bi(R) granules were inoculated with a conidial suspension of NRRL 30797 to achieve a final cell density of log 7 conidia/granule. Incubation of 20-g soil samples receiving a single Mater-Bi(R) granule for 60-days resulted in log 4.2 to 5.3 propagules of A. flavus/g soil for microbiologically active and sterilized soil, respectively. The bioplastic formulation was highly stable; Mater-Bi(R) is a suitable substitute for biocontrol applications of A. flavus NRRL 30797.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
