Journal
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
Volume 125, Issue -, Pages 948-954Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.ijbiomac.2018.12.167
Keywords
Chitosan; Chitosan nanoparticles; Chitinase; beta-1,3-Glucanase; Pathogenesis-related proteins; Fusarium andiyazi; Antioxidant enzymes
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The aim of this work was to evaluate the possibility of control of wilt disease caused by Fusarium andiyazi through chitosan (CS) and chitosan nanoparticles (CNPs). In the present study, the expression pattern of pathogenesis-related (PR) proteins genes such as PR-1, PR-2 ((beta-1,3-glucanase), PR-8 (chitinase), and PR-10 was analyzed using real-time RT-PCR. In vitro studies showed that among different concentrations (0.1-5.0 mg/ml), 5.0 mg/ml concentration of CS and CNPs produced maximum inhibition of radial mycelial growth, 54.8% and 73.81%, respectively. Also, upregulated expression of beta-1,3-glucanase, chitinase, PR-1 and PR-10 genes were recorded with 1.48, 1.15, 1.15, and 1.41, fold expression in 24 hpi, respectively, in plants inoculated with CNPs. The most significant up-regulation was observed in transcript profile of SOD that showed 4.5-foldexpression, at 48 hpi. Therefore, our results confirmed that CS and CNPs induced up-regulation of PR-proteins and antioxidant genes might play a significant role for successful biocontrol. (C) 2018 Elsevier B.V. All rights reserved.
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