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title Insecticidal activity of leaf extracts from Drosophyllum lusitanicum against Liriomyza trifolii (Burgess) (Diptera: Agromyzidae)
authors Goncalves, S; Goncalves, MA; Ameixa, O; Nogueira, JMF; Romano, A
author full name Goncalves, S.; Goncalves, M. A.; Ameixa, O.; Nogueira, J. M. F.; Romano, A.
title Insecticidal activity of leaf extracts from Drosophyllum lusitanicum against Liriomyza trifolii (Burgess) (Diptera: Agromyzidae)
nationality nacional
language English
document type Article
abstract ne present study was carried out to evaluate the insecticidal properties of Drosophyllum lusitanicum (L.) Link, an insectivorous plant that is endemic to the western Iberian Peninsula and northwest Morocco. The insecticidal capacities of extracts from field-grown A lusitanicum plants were evaluated using contact and feeding bioassays against female adults of Liriomyza trifolii (Burgess), one of the major pests of several floricultural and vegetable crops. In addition, the toxicity of the extract from in vitro cultures of D. lusitanicum was evaluated in contact bioassays. ne results showed that extracts of D. lusitanicum have considerable insecticidal potential, particularly through contact application (100% mortality 1 d after treatment). Moreover, extracts from in vitro cultures had similar toxicity to those from field-grown plants. Extracts were analysed by gas chromatography coupled to mass spectrometry (GC-MS). The major constituent was 5-hydroxy-2-methyl-1,4-naphthoquinone (plumbagin), and its level was similar in extracts from field-grown plants (11.0 mg ml(-1)) and from in vitro cultures (8.2 mg ml(-1)). Although the results suggest that the insecticidal activity of extracts of D. lusitanicum is probably due to the presence of this naphthoquinone, further detailed research is required to identify other compounds that may be responsible for the activity.
author address [Romano, A.] Univ Algarve, Inst Biotechnol & Bioengn, Ctr Mol & Struct Biomed, P-8005139 Faro, Portugal; [Goncalves, S.; Goncalves, M. A.; Ameixa, O.; Romano, A.] Univ Algarve, Fac Nat Resources Engn, P-8005139 Faro, Portugal; [Nogueira, J. M. F.] Univ Lisbon, Dept Chem & Biochem, Ctr Chem & Biochem, Fac Sci, P-1749016 Lisbon, Portugal
reprint address Romano, A (reprint author), Univ Algarve, Inst Biotechnol & Bioengn, Ctr Mol & Struct Biomed, Campus Gambelas, P-8005139 Faro, Portugal.
e-mail address aromano@ualg.pt
researcherid number Nogueira, Jose Manuel/D-1736-2009; Romano, Anabela/C-1157-2013; Ameixa, Olga/E-2297-2011
orcid number Nogueira, Jose Manuel/0000-0001-5785-6780; Ameixa, Olga/0000-0002-5422-1090
funding agency and grant number Portuguese Science and Technology Foundation (FCT) [SFRH/BPD/31534/2006]
funding text Sandra Goncalves acknowledges a grant from the Portuguese Science and Technology Foundation (FCT, Grant SFRH/BPD/31534/2006)
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cited reference count 34
times cited 4
total times cited count (wos, bci, and cscd) 4
publisher city ASHFORD
issn 1462-0316
29-character source abbreviation J HORTIC SCI BIOTECH
iso source abbreviation J. Horticult. Sci. Biotechnol.
publication date SEP
year published 2008
volume 83
issue 5
beginning page 653
ending page 657
page count 5
web of science category Horticulture
subject category Agriculture
document delivery number 361PO
unique article identifier WOS:000260139800020
CESAM authors