According to the published DNA sequence of Aspergillus fumigatus chitosanase(Csn) gene, eight long single DNA strands ,about 100 nucleotides each, and four DNA primers were designed and synthesized.

• 本文首先根据Genbank所发布的烟曲霉菌壳聚糖酶基因序列人工合成8条DNA长链及4条引物链。