Current approaches of managing microbial diseases: focus on nanosciences technique

Sayed, Mohamed A.; El-Ansary, Mostafa

doi:10.12980/jclm.3.2015j5-40

“…Nanoparticles (NPs) are widely employed in the environment due to their unique optical, electronic and magnetic characteristics [1,2,3]. Among the NPs, Zinc oxide nanoparticles (ZnO-NPs) are used in several industries, medicine and agriculture [4,5], due to their unique characteristics which differ from their particular bulk counterparts of the same synthesis [6,7], such as morphology, size and distribution [8]. The NPs are also used in the gene delivery [9] ( Manna and Bandyopadhyay, 2019) or as a synthetic drug [10,11,12].…”

Section: Introductionmentioning

confidence: 99%

Using Biosynthesized Zinc Oxide Nanoparticles as a Pesticide to Alleviate the Toxicity on Banana Infested with Parasitic-Nematode

El-Ansary

¹

,

Hamouda

²

,

Elshamy

³

2021

Waste Biomass Valor

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We appraised the use of zinc oxide nanoparticles, (ZnO-NPs) and zinc oxide bulk (ZnO-bulk) or zinc acetate, as a natural nematocide, alone or in combination with oxamyl in vitro and in vivo trials in order to improve systems for root-knot nematode (RKNs) control in banana plants. Especially, ZnO-NPs were biosynthesized from the alga, Ulva fasciata. In general, all applications of ZnO-NPs were more effective to control RKNs than ZnO-bulk as well oxamyl alone (chemical control). In in vitro conditions, ZnO-NPs with oxamyl showed 98.91% second stage juveniles2 (J2s) mortality of Meloidogyne incognita after 72 hrs, while 72.86% mortality was observed at the same NPs treatment without oxamyl at the same exposure time. The same treatment was the most effective in diminution of J2s community (82.77%) in soil and galls number (81.87%) in roots under in vivo conditions. In contrast, the highest weight and height of the shoot was observed in Zn-bulk treatment in combination with oxamyl as well oxamyl only (nematocides check). Scanning electron microscopy (SEM) reports displayed the distributions and accumulations of ZnO-NPs on the nematode (J2s) body under direct exposure, which might be the reason of NP-mediated toxicity and disruption for M. incognita. HighlightsZno-NPs biosynthesis by macrogreen alga Ulva fasciata and give nanorode particles. Biogenic ZnO-NPs were used as nematocidal against root-knot nematodes (RKNs) solely and in combination with oxamly in vitroand in vivo.ZnO-NPs exhibited high nematocidal activity in vitroand in vivo.Banana plants infected with RKNs and treated with ZnO-NPs in combination with oxamly showed high growth. Statement Of NoveltyThis study offers importance of green technology for the development of biosynthesis ZnO-NPs, and in combinations with oxamyl in control RKNs (in vivo and in vitro). Moreover, it is possible using biosynthesis ZnO-NPs in alternative to pesticide and also to enhancement the plant yields. nematode body with magni cation 500x, f) ZnO-NPs attached to the nematode body with magni cation 1500x.

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Impact of metal oxide nanoparticles against biotic stress in plants

Vaishnavi¹,

Prakash

²

,

Jayanthi

³

et al. 2023

Nanometal Oxides in Horticulture and Agronomy

2

0

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Using Biosynthesized Zinc Oxide Nanoparticles to Alleviate the Toxicity on Banana Parasitic-Nematode

El-Ansary

¹

,

Hamouda

²

,

Elshamy

³

2021

Preprint

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We appraised the use of zinc oxide nanoparticles, (ZnO-NPs) and zinc oxide bulk (ZnO-bulk) or zinc acetate, as a natural nematocide, alone or in combination with oxamyl in vitro and in vivo trials in order to improve systems for root-knot nematode (RKNs) control in banana plants. Especially, ZnO-NPs were biosynthesized from the alga, Ulva fasciata. In general, all applications of ZnO-NPs were more effective to control RKNs than ZnO-bulk as well oxamyl alone (chemical control). In in vitro conditions, ZnO-NPs with oxamyl showed 98.91% second stage juveniles2 (J2s) mortality of Meloidogyne incognita after 72 hrs, while 72.86% mortality was observed at the same NPs treatment without oxamyl at the same exposure time. The same treatment was the most effective in diminution of J2s community (82.77%) in soil and galls number (81.87%) in roots under in vivo conditions. In contrast, the highest weight and height of the shoot was observed in Zn-bulk treatment in combination with oxamyl as well oxamyl only (nematocides check). Scanning electron microscopy (SEM) reports displayed the distributions and accumulations of ZnO-NPs on the nematode (J2s) body under direct exposure, which might be the reason of NP-mediated toxicity and disruption for M. incognita.

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Current approaches of managing microbial diseases: focus on nanosciences technique

Cited by 3 publications

References 57 publications

Using Biosynthesized Zinc Oxide Nanoparticles as a Pesticide to Alleviate the Toxicity on Banana Infested with Parasitic-Nematode

Using Biosynthesized Zinc Oxide Nanoparticles as a Pesticide to Alleviate the Toxicity on Banana Infested with Parasitic-Nematode

Impact of metal oxide nanoparticles against biotic stress in plants

Using Biosynthesized Zinc Oxide Nanoparticles to Alleviate the Toxicity on Banana Parasitic-Nematode

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