[Cellulase and xylanase activity of phytopathogenic and endophytic fungal strains of Alternaria alternata (Fr.) Keissler].
A comparative analysis of cellulase and xylanase activity of 25 fungal strains of phytopathogenic and endophytic Alternaria alternata had been realized for the first time using the qualitative reactions. The rate of their linear growth on the media with carboxymethylcellulose or xylane had been studied. The cellulase and xylanase activities clearly depended on the distinct strain. The absence of distinct dependence of cellulase and xylanase activities on the species and organs of host plants was demonstrated. The majority of investigated strains of A. alternata did not possess a cellulase activity or the latter was low, but as a whole the phytopathogenic strains were more active than endophytic ones. Xylanase activity was considerable for the fungal strains of all trophyc groups. It was shown that the level of xylanase activity cannot become a biochemical marker of the A. alternata isolate pathogenicity.
Kurchenko
I M
IM
Sokolova
O V
OV
Zhdanova
N M
NM
Iarynchyn
A M
AM
Iovenko
O M
OM
D000528:Alternaria / Q000201:enzymology / Q000254:growth & development / Q000302:isolation & purification; D002480:Cellulase / Q000378:metabolism*; D003470:Culture Media; D043364:Endo-1,4-beta Xylanases / Q000378:metabolism*; D010935:Plant Diseases / Q000382:microbiology; D014774:Virulence
D003470:Culture Media; D002480:Cellulase; D043364:Endo-1,4-beta Xylanases