Effect of Lactoperoxidase System on the Control of Colletotrichum musae on Bananas

Woeheoudama Sagoua1, Marie-Noëlle Ducamp1*, Gérard Loiseau1,2 and Luc de Lapeyre de Bellaire3

1French Agricultural Research Centre for International Development (CIRAD),Zagreb, Croatia, Performance of Tropical Cropping Systems Department (PERSYST), UMR QUALISUD, TA 50/16, Avenue Agropolis, 34398 Montpellier Cedex 5, France
2International Centre of Higher Education in Agriculture Science (Montpellier SupAgro), B.P. 5085, 34033 Montpellier Cedex 1, France
French Agricultural Research Centre for International Development (CIRAD), Performance of Tropical Cropping Systems Department (PERSYST), UR 'banana and pineapple cropping systems', TA B-26/PS4, Avenue Agropolis, 34398 Montpellier Cedex 5, France

Article history:

Received September 17, 2009

Accepted September 6, 2010

Key words:

LPS, Eau Activée®, Colletotrichum musae, postharvest diseases, crown rot, anthracnose


Postharvest diseases are a major concern for plant products, leading to considerable postharvest losses. Colletotrichum musae is responsible for anthracnose and is also involved in crown rot, the two main postharvest diseases of banana. The use of antimicrobial agents such as the lactoperoxidase system (LPS) represents an interesting alternative to the use of conventional fungicides for the control of postharvest diseases of banana. Conidial germination and fungal growth of three different strains of Colletotrichum musae originating from Cameroon (C 52 and C 62) and Guadeloupe (C 46.12) were monitored in the presence of LPS or Eau Activée® (an industrial derivative of LPS). In vivo studies were also conducted on bananas preinoculated with strain C 46.12 and then subjected to a soaking treatment in LPS and Eau Activée® solutions. However, this postharvest treatment did not show any significant effect of the LPS or Eau Activée®. The in vitro studies showed a difference in the behaviour of Colletotrichum musae strains subjected to LPS and Eau Activée® treatments. A highly visible inhibitory effect of LPS was observed on fungal growth of strains C 52 and C 62. Furthermore, LPS gave better results than its industrial derivative, Eau Activée®.

*Corresponding author: 
                                               ++334 67 615 557
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