A High Diversity in Chitinolytic and Chitosanolytic Species and Enzymes and Their Oligomeric Products Exist in Soil with a History of Chitin and Chitosan Exposure
Table 1
Chitinase and chitosanase activity of the fungal isolates screened from soil samples.
Isolate number
Name of the fungus
Activity in dot assays
Chitinase
Chitosanase
1
Fusarium sp.
+
−
2
Unidentified
−
+
3
Penicillium sp.
+
+
4
Aspergillus sp.
+
−
5
Acremonium sp.
−
−
6
Cladosporium sp.
+
+
7
Cladosporium sp.
−
+
8
Aureobasidium pullulans
+
−
9
Aureobasidium pullulans
+
−
10
Unidentified
+
+
11
Unidentified
−
+
12
Unidentified
−
+
13
Unidentified
+
−
14
Aspergillus sp.
−
−
15
Curvularia sp.
−
−
16
Unidentified
−
−
17
Aspergillus sp.
+
+
18
Aspergillus niger
+
+
19
Sporormiella intermedia
−
−
20
Cladosporium cladosporioides
−
+
21
Drechslera sp.
+
+
22
Drechslera sp.
+
−
23
Aspergillus sp.
−
+
24
Acremonium sp.
+
+
25
Unidentified
−
+
Glycol-chitin and chitosan DA 36% were used as substrates to detect chitinase and chitosanase activity, respectively; + = positive; − = negative.