Technical advance in fungal biotechnology: development of a miniaturized culture method and an automated high-throughput screening.

Abstract:

AIMS:The goal of the study was to develop a reliable, reproducible and rapid method of culture in order to screen a large number of fungal transformants. METHODS AND RESULTS:The method is based upon miniaturized cell cultures and automated expression screening in microwell plates. For the method development, 50 recombinant Aspergillus vadensis clones producing feruloyl esterase B (FaeB) from Aspergillus niger were screened in 6 days. Then a panel of clones showing various behaviours was checked in flasks in order to demonstrate the reproducibility of the method. Using this method, a transformant of A. vadensis producing 1.2 g l(-1) of FaeB was selected (12-fold more than the A. niger overproducing strain). CONCLUSIONS:This miniaturized culture method allows to obtain reliable and reproducible results. The procedure has the advantages of being efficient, time-saving and more efficient than conventional in-flask culture screening as it can screen 800 clones per day after a culture of 3 days. SIGNIFICANCE AND IMPACT OF THE STUDY:This method could be applied to any other fungal strain culture, enzyme activity or biodiversity screening.

journal_name

Lett Appl Microbiol

authors

Alberto F,Navarro D,de Vries RP,Asther M,Record E

doi

10.1111/j.1472-765X.2009.02655.x

subject

Has Abstract

pub_date

2009-08-01 00:00:00

pages

278-82

issue

2

eissn

0266-8254

issn

1472-765X

pii

LAM2655

journal_volume

49

pub_type

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