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Chitosan guar nanoparticle preparation and its in vitro antimicrobial activity towards phytopathogens of rice.

Abstract：

:The aim of the present study was to prepare chitosan guar nanoparticle (CGNP) with high antimicrobial activity to use as a bioprotectant against rice phytopathogens. Nanoparticles were prepared using sodium tripolyphosphate by the ionic gelation method. The physico-chemical properties of nanoparticles were characterized through DLS, FTIR, TEM, SEM, AFM and XRD. The application of CGNP to rice seeds stimulated seed germination and seedling growth. CGNP showed growth inhibition towards rice pathogens P. grisea and X. oryzae under in-vitro condition. Excised rice leaves treated with CGNP and challenged with P. grisea showed no blast disease symptom whereas control leaves showed very high blast disease symptom. The results of this study indicate that CGNP can be used as an antimicrobial agent to control blast, blight disease of rice.

journal_name

Int J Biol Macromol

journal_title

International journal of biological macromolecules

authors

Sathiyabama M,Muthukumar S

doi

10.1016/j.ijbiomac.2020.03.001

subject

Has Abstract

pub_date

2020-06-15 00:00:00

pages

297-304

eissn

0141-8130

issn

1879-0003

pii

S0141-8130(19)40052-4

journal_volume

153

pub_type

杂志文章

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