ศูนย์นวัตกรรมเทคโนโลยีหลังการเก็บเกี่ยว

Endo- and exochitinase activity in kiwifruit infected with Botrytis cinerea.

Wurms, K.; Long, P.; Greenwood, D.; Sharrock, K.; Ganesh, S.;

Journal of Phytopathology Year: 1997 Vol: 145 Issue: 4 Pages: 145-151 Ref: 38 ref.

1997

บทคัดย่อ

Endo- and exochitinase activities were determined in autoclaved leaves, live leaves and fruit of kiwifruit cv. Hayward following infection with Botrytis cinerea. Appreciable endochitinase activity was found in healthy and diseased leaves and fruit at harvest and after cool-storage but was absent in plant tissue killed by autoclaving. Later harvested fruit produced more endochitinase activity in storage than did early harvested fruit. Exochitinase activity was only associated with diseased tissue and was present in diseased autoclaved leaves. The results suggest that endochitinase activity originates from the plant whilst exochitinase is associated with the pathogen. The significance of these findings is discussed.