Inhibition of Chitosan and Oligochitosan on Hyphal Growth of Four Species of Brown Rot Fungi

Author

Turdi, Ya-sheng ; Zhu, Xiao-qiong

Author_Institution

Dept. of Plant Pathology, China Agric. Univ., Beijing, China

fYear

2012

fDate

28-30 May 2012

Firstpage

1530

Lastpage

1533

Abstract

Brown rot is one of the most important diseases on stone and pome fruits ( Prunus spp.) worldwide. Monilinia fructigena, Monilinia laxa, Monilinia fructicola and Monilia polystroma are causal agents of brown rot disease. Inhibition of chitosan and oligochitosan on hyphal growth of four species of brown rot fungi were tested. The EC₅₀ values of chitosan to five isolates ranged from 0.15-0.53mg·ml^-1 and the EC50 values of oligochitosan to 5 isolates ranged from 0.25-4.28mg·ml^-1. The results indicated that both chitosan and oligochitosan could inhibit mycelial growth of Monilinia spp. and chitosan was more effective than oligochitosan.

Keywords

diseases; macromolecules; microorganisms; EC₅₀ values; Monilia polystroma; Monilinia fructicola; Monilinia fructigena; Monilinia laxa; Prunus spp; brown rot disease; brown rot fungi; chitosan inhibition; hyphal growth; mycelial growth; oligochitosan inhibition; pome fruits; stone; Biological control systems; Fungi; Pathogens; Pathology; Personal digital assistants; Sensitivity; EC50 values; Monilinia spp.; mycelial growth;

fLanguage

English

Publisher

ieee

Conference_Titel

Biomedical Engineering and Biotechnology (iCBEB), 2012 International Conference on

Conference_Location

Macao

Print_ISBN

978-1-4577-1987-5

Type

conf

DOI

10.1109/iCBEB.2012.250

Filename

6245426