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Antibacterial and biofilm inhibition activity of biofabricated silver nanoparticles against Xanthomonas oryzae pv. oryzae causing blight disease of rice instigates disease suppression
Mishra, Sandhya; Yang, Xiaodong; Ray, Shatrupa; Fraceto, Leonardo Fernandes2; Singh, H. B.
2020
Source PublicationWORLD JOURNAL OF MICROBIOLOGY & BIOTECHNOLOGY
ISSN0959-3993
Volume36Issue:4Pages:-
Abstract

Antimicrobial activity of silver nanoparticles (AgNPs) has been well documented in earlier studies. As their efficient role in combating phytopathogens has begun recently, there is a huge scope to explore their effectiveness in agriculture. Considering the strong antifungal activity of biosynthesized AgNPs (as reported in our previous study), our main aim is to elucidate their antibacterial activity against bacterial plant pathogens to authenticate their wide range of agricultural applications. The present manuscript highlights the potential role of biosynthesized AgNPs against Xanthomonas oryzae pv. oryzae (Xoo) causing disastrous sheath blight disease of rice worldwide. We observed strong antibacterial activity of biosynthesized AgNPs (size similar to 12 nm) against Xoo at 20, 30 and 50 mu g/mL concentrations. The significant inhibitory impact of AgNPs on biofilm formation by Xoo was noted even at the lower dose of 5 mu g/mL (p = 0.001). Maximum biofilm inhibition (p = 0.000) was caused at 50 mu g/mL concentration of AgNPs in comparison to control. Furthermore, disease suppression by biosynthesized AgNPs was authenticated under greenhouse conditions. Foliar spray of AgNPs significantly reduced the blight symptoms in rice sheaths as shown by 9.25% DLA (% Diseased leaf area) as compared to 33.91% DLA in Xoo inoculated rice plants. Altogether, our data suggest that biosynthesized AgNPs based nanoformulation can be applied for successful management of blight disease of rice. In addition, the antibiofilm strategies instigated by AgNPs can be exploited against a wide range of bacterial phytopathogens. In light of rapidly emerging antibiotic-resistant microbial strains, the current work provides an alternate effective platform for the application of nanoformulation for augmenting sustainability in the agriculture.

KeywordSilver nanoparticles Xanthomonas oryzae pv oryzae Biofilm Rice Nanoformulation
Subject AreaBiotechnology & Applied Microbiology
DOI10.1007/s11274-020-02826-1
Indexed BySCI
Language英语
WOS IDWOS:000520599700001
Citation statistics
Document Type期刊论文
Identifierhttp://ir.xtbg.org.cn/handle/353005/11667
Collection土壤生态组
Affiliation1.Chinese Acad Sci, Xishuangbanna Trop Bot Garden, CAS Key Lab Trop Forest Ecol, Menglun 666303, Yunnan, Peoples R China
2.Ray, Shatrupa; Singh, H. B.] Banaras Hindu Univ, Dept Mycol & Plant Pathol, Inst Agr Sci, Varanasi 221005, Uttar Pradesh, India
3.Sao Paulo State Univ, Lab Environm Nanotechnol, Inst Sci & Technol Sorocaba, Sao Paulo, Brazil
4.Singh, H. B.] Somvanshi Res Fdn, 13-21 Vikas Nagar, Lucknow 226022, Uttar Pradesh, India
Recommended Citation
GB/T 7714
Mishra, Sandhya,Yang, Xiaodong,Ray, Shatrupa,et al. Antibacterial and biofilm inhibition activity of biofabricated silver nanoparticles against Xanthomonas oryzae pv. oryzae causing blight disease of rice instigates disease suppression[J]. WORLD JOURNAL OF MICROBIOLOGY & BIOTECHNOLOGY,2020,36(4):-.
APA Mishra, Sandhya,Yang, Xiaodong,Ray, Shatrupa,Fraceto, Leonardo Fernandes,&Singh, H. B..(2020).Antibacterial and biofilm inhibition activity of biofabricated silver nanoparticles against Xanthomonas oryzae pv. oryzae causing blight disease of rice instigates disease suppression.WORLD JOURNAL OF MICROBIOLOGY & BIOTECHNOLOGY,36(4),-.
MLA Mishra, Sandhya,et al."Antibacterial and biofilm inhibition activity of biofabricated silver nanoparticles against Xanthomonas oryzae pv. oryzae causing blight disease of rice instigates disease suppression".WORLD JOURNAL OF MICROBIOLOGY & BIOTECHNOLOGY 36.4(2020):-.
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