In vitro effects of crab shell chitosan against mycelial growth of Botrytis sp., Penicillium sp and Pilidiella granati

被引：8

作者：

Munhuweyi, K. ^{[1
]}

Lennox, C. L. ^{[2
]}

Meitz-Hopkins, J. C. ^{[2
]}

Caleb, O. J. ^{[1
,3
]}

Sigge, G. O. ^{[4
]}

Opara, U. L. ^{[1
,3
]}

机构：

[1] Univ Stellenbosch, Dept Food Sci, South African Res Chair Postharvest Technol, Postharvest Technol Res Lab, ZA-7602 Stellenbosch, South Africa

[2] Univ Stellenbosch, Dept Plant Pathol, ZA-7602 Stellenbosch, South Africa

[3] Univ Stellenbosch, Dept Hort Sci, ZA-7602 Stellenbosch, South Africa

[4] Univ Stellenbosch, Dept Food Sci, ZA-7602 Stellenbosch, South Africa

来源：

III INTERNATIONAL SYMPOSIUM ON POSTHARVEST PATHOLOGY: USING SCIENCE TO INCREASE FOOD AVAILABILITY | 2016年 / 1144卷

基金：

新加坡国家研究基金会;

关键词：

antifungal; chitosan; diseases; in vitro; pomegranate (Punica granatum L.); POSTHARVEST DISEASES; FUNGAL PATHOGENS; TOMATO FRUIT; POMEGRANATE; ROT;

D O I：

10.17660/ActaHortic.2016.1144.60

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

The antifungal activities of crab hell chitosan and fludioxonil (registered postharvest fungicide) were evaluated in vitro against Botrytis Penicillium sp. and Pilidiella granati isolated from pomegranate fruit. Mycelial growth of the pathogens was inhibited by both chitosan and fludioxonil in a dose-dependent manner, with complete inhibition at 10 and 0.01 mg mL(-1), respectively. The concentration causing a 50% reduction in mycelial growth (EC50) ranged between 0.5-2.2 mg mL(-1) and 0.1-0.5 mu g mL(-1) for chitosan and fludioxonil, respectively. This study has demonstrated that crab shell chitosan can be used to control pomegranate postharvest Pathogens Botrytis sp., Penicillium sp. and Pilidiella grartirti. Sensitivity to chitosan may be species dependent and in this study P. granati was the most sensitive, with complete inhibition of mycelial growth at 1 mg mL(-1) of chitosan.

引用

页码：403 / 407

页数：5

共 13 条

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