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Journal of Industrial and Environmental Chemistry
|
Volume 2
GREEN CHEMISTRY &
TECHNOLOGY
7
th
International Conference on
J u n e 1 8 - 2 0 , 2 0 1 8 | D u b l i n , I r e l a n d
Atef Mohamed Khedr Nassar et al., J Ind Environ Chem 2018, Volume 2 | DOI: 10.4066/2591-7331-C1-002
EFFECTIVENESS OF BOTANICAL
NANOPARTICLES AGAINST ROOT-
KNOT NEMATODE (
MELOIDOGYNE
INCOGNITA
)
Atef Mohamed Khedr Nassar, Moustafa A Abbassy, Mona A
Abdelrasoul
and
Belal M Soliman
Damanhour University, Egypt
W
orldwide, the root-knot nematode (
Meloidogyne
spp.) is an invasive
plant pathogen that coulddestroyup to64%of the yield.Management
strategies mainly depend on the use of synthetic nematicides that have
adverse effects on human and the environment. Therefore, current study
investigated the effectiveness of leaf extracts of
Conyza dioscoridis
and
Urtica urens
that were prepared as silver nanoparticles (Ag-NP) as
nematicidal alternatives. The characterization and size confirmation of
the Ag-NP were done by UV-Vis spectrophotometry and the scanning
electronmicroscopy (SEM). The phytochemical contents of crude extracts
and the nano formulations were analyzed using gas chromatography-
mass spectroscopy (GC-MS). Results revealed that silver nanoparticles
of
C. dioscoridis
and
Urtica urens
extracts had great nematicidal activity
against the 2
nd
stage juvenile (J2) and eggs of
Meloidogyne incognita
.
Also, the Ag-NP showed similar nematicidal effect to the reference
nematicides. The GC-MS analysis revealed the increase of certain
metabolites due to the formulation of the Ag-NPs. Aromadendrene,
1-hydroxy-1,7-dimethyl-4-isopropyl-2,7-cyclodecadiene, 6-epi-shyobunol,
4-hexylacetophenone, β-isocomene, caryophyllene, β- and α-selinene,
α-cadinol, berkheyaradulen (
It’s a sesquiterpene hydrocarbon that is
detected in many plant species; Chrysanthemum boreale, chamomile oil,
and many others,
) and bis-(2-ethylhexyl)phthalate were increased more
than 2.5-folds in the Ag-NP compared to the extract. Therefore, the green
synthesis of metal nanoparticles might be a safe, effective and affordable
nematicide alternatives.
Atef Mohamed Khedr Nassar finished his BSc.
and MSc. degrees at Alexandria University,
Egypt and the PhD. degree at McGill Universi-
ty, Canada. He is working as an associate pro-
fessor of Pesticide Chemistry and Toxicology,
at Department of Plant Protection, Faculty of
Agriculture, Damanhour University, Egypt. He is
involved in studying the adverse effects of pes-
ticides to humans and non-target organisms.
In addition, he is trying to find new alternatives
to pesticides including nano-formulations of
pesticides and natural products to reduce the
amount of pesticides applied into the environ-
ment. He published many research articles in
peer-reviewed and highly impacted scientific
journals in the field of pest management and
pesticides residue analysis and toxicology.
Atef.nassar@dmu.edu.egBIOGRAPHY