Antifungal Ability of Nanochitosan against Colletotrichum acutatumL2 in Post Harvest Tomato Fruit

Received: 07-05-2015

Accepted: 02-12-2015

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Issue: Vol. 13 No. 8 (2015)

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KỸ THUẬT VÀ CÔNG NGHỆ

How to Cite:

Long, L., Nga, N., Cuong, N., Khiem, T., & Tien, N. (2024). Antifungal Ability of Nanochitosan against Colletotrichum acutatumL2 in Post Harvest Tomato Fruit. Vietnam Journal of Agricultural Sciences, 13(8), 1481–1487. http://testtapchi.vnua.edu.vn/index.php/vjasvn/article/view/237

Antifungal Ability of Nanochitosan against Colletotrichum acutatumL2 in Post Harvest Tomato Fruit

Le Thanh Long (*) 1 , Nguyen Thi Nga 1 , Nguyen Cao Cuong 1 , Tran Ngoc Khiem 1 , Nguyen Thi Thuy Tien 1

  • 1 Đại học Nông Lâm, Đại học Huế

    • Keywords

    Anthracnose, Colletotrichum acutatum, inhibitory effect, nanochitosan

    Abstract


    This study examined the antifungal effect of nanochitosan on Colletotrichum acutatum L2 isolated from anthracnose infected tomato both in vitro and in vivo. The results demonstrated that nanochitosan inhibited the spore germination and the growth of C. acutatum L2. Inhibitory effect of 50% and 90% mycelial diameter and dry biomass was achieved at the nanochitosan concentration of 0.75 g/l and 1.53 g/l, 0.46 g/l and 1.1 g/l, respectively. Concentration of 1.6 g/l nanochitosan completely inhibited the growth of C. acutatum L2. In in vivo, nanochitosan could control the growth of C. acutatum L2 on tomato fruits. After 10 days, the nanochitosan concentration of 4 g/l inhibited 76% the development of lesion diameter and MIC50 was achieved at concentration of 1.14 g/l.

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