Antifeedant effects of plant lectins and an enzyme on the adult stage of the rice brown planthopper, <i>Nilaparvata lugens</i>

Powell, Kevin; Gatehouse, Angharad M. R.; Hilder, Vaughan A.; Gatehouse, John A.

doi:10.1111/j.1570-7458.1995.tb01909.x

Cited by 110 publications

(64 citation statements)

References 22 publications

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“…But no GNA was detected in the honeydew. This is in contrast to Powell et al (1995a) who demonstrated the excretion of GNA by N. lugens fed on an artificial diet containing a high lectin concentration. It can be hypothesized that as soon as GNA-binding sites in the insect have been saturated, excess GNA-intake can be excreted in the honeydew.…”

Section: Gna: a Mannose-specific Lectin With Negative Effects On Sevecontrasting

confidence: 50%

“…Although responses varied substantially over the studies, GNA had a markedly negative effect on several aspects of insect life. Powell et al (1995a) showed a dose-dependent effect of GNA on honeydew production (a common measure for the amount of feeding in hemipteran insects) of the brown plant hopper (Nilaparvata lugens). After feeding GNA to the insects at doses between 0.01 and 0.1% (w/v), the presence of the lectin in the honeydew of GNA-fed insects was demonstrated.…”

Section: Gna: a Mannose-specific Lectin With Negative Effects On Sevementioning

confidence: 99%

“…Although Rahbé et al (1995) did not record any significant level of toxicity by wheat germ agglutinin (WGA) towards A. pisum, this lectin was shown to exert negative effects on the American bollworm Helicoverpa armigera, the mustard aphid L. erysimi, and the rice brown planthopper N. lugens (Gupta et al, 2005;Kanrar et al, 2002;Powell et al, 1995a). Indeed, lectins with N-acetylglucosamine-specificity have a high affinity for chitin, the main constituent of the peritrophic matrix in the insect gut (Hakim et al, 2010).…”

Section: Other Constitutively Expressed Lectinsmentioning

confidence: 99%

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Plant‐insect interactions: what can we learn from plant lectins?

Michiels

Damme

Smagghe

2010

Arch Insect Biochem Physiol

120

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Many plant lectins have high anti-insect potential. Although the effects of most lectins are only moderately influencing development or population growth of the insect, some lectins have strong insecticidal properties. In addition, some studies report a deterrent activity towards feeding and oviposition behavior. Transmission of plant lectins to the next trophic level has been investigated for several tritrophic interactions. Effects of lectins with different sugar specificities can vary substantially with the insect species under investigation and with the experimental setup. Lectin binding in the insect is an essential step in exerting a toxic effect. Attempts have been made to study the interactions of lectins in several insect tissues and to identify lectin-binding receptors. Ingested lectins generally bind to parts of the insect gut. Furthermore, some lectins such as the Galanthus nivalus agglutinin (GNA) cross the gut epithelium into the hemolymph and other tissues. Recently, several candidate lectinbinding receptors have been isolated from midgut extracts. To date little is known about the exact mechanism for insecticidal activity of plant lectins. However, insect glycobiology is an emerging research field and the recent Grant sponsor: Fund for Scientific Research-Flanders, Brussels; Grant number: 3G016306.Correspondence to: Guy Smagghe, Ghent University, Coupure Links 653, B-9000 Ghent, Belgium. E-mail: guy.smagghe@ugent.be Vol. 73, No. 4, 193-212 (2010 ARCHIVES OF INSECT BIOCHEMISTRY AND PHYSIOLOGY,

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Section: Gna: a Mannose-specific Lectin With Negative Effects On Sevecontrasting

confidence: 50%

Section: Gna: a Mannose-specific Lectin With Negative Effects On Sevementioning

confidence: 99%

Section: Other Constitutively Expressed Lectinsmentioning

confidence: 99%

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Plant‐insect interactions: what can we learn from plant lectins?

Michiels

Damme

Smagghe

2010

Arch Insect Biochem Physiol

120

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“…Lectins from snowdrop, pea, wheat, rice, castor, soybean, mungbean, garlic, sweet potato, tobacco, chickpea and groundnut have been isolated and characterised. Lectins produce chronic effects on survival and development of insect pests elonging to different insect orders (Shukle and Murdock, 1983;Czapla and Lang, 1990;Habibi et al 1992;Powell et al 1995). Transgenic tobacco expressing pea lectin has shown adverse effects against H. virescens (Boulter et al 1990).…”

Section: Plant Lectinsmentioning

confidence: 99%

Prospects for using transgenic resistance to insects in crop improvement

Sharma¹,

Sharma²,

Seetharama³

et al. 2000

Electron. J. Biotechnol.

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Integrated pest management has historically placed great hopes on host plant resistance. However, conventional host-plant resistance to insects involves quantitative traits at several loci. As a result, the progress has been slow and difficult to achieve. With the advent of genetic transformation techniques, it has become possible to clone and insert genes into the crop plants to confer resistance to insect pests. Resistance to insects has been demonstrated in transgenic plants expressing genes for δ δ-endotoxins from Bacillus thuringiensis (Bt), protease inhibitors, enzymes and plant lectins. Most of the plant derived genes produce chronic rather than toxic effects and some insect pests are not sensitive to some of these factors. The potential of plant derived genes can be realised by deploying them in combination with host plant resistance and exotic genes. Genes conferring resistance to insects have been inserted into crop plants such as maize, cotton, potato, tobacco, potatoes, rice, broccoli, lettuce, walnuts, apples, alfalfa and soybean. Genetically transformed crops with Bt genes have been deployed for cultivation in USA, China and Australia. However, very little has been done to use this technology for improving crop production in the harsh environments of the tropics, where the need for increasing food production is most urgent. International agricultural research centres, advanced research institutes and the seed sector should make an effort to use these new tools for increasing food *Corresponding author production in poorer regions of the world. There is an urgent need to develop a scientifically sound strategy to deploy exotic and plant derived genes for minimising the extent of losses caused by insect pests. Equally important is the need for following the biosafety regulations, more responsible public debate, social attitude and better presentation of the benefits for a rational deployment of the genetically transformed plants.

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“…Insecticidal properties of lectins have been reported in a number of studies against various insects such as European corn borer (Ostrinia nubilalis), homopeterans, leidopterans and coloeopterans. Studies have shown that lectins affect survival and development of insects (Powell et al, 1995). Lectins attach to the glycosylated receptors present on the lining of insect's gut.…”

Section: Introductionmentioning

confidence: 99%

Computational and Real-Time RT-PCR Expression Analyses of Garlic Lectin Gene

Usman¹,

Rehman²,

Khan³

et al. 2015

IJAB

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Sucking insect pests inflict heavy losses to important crops. Bt gene being unable to control sucking insects, lectin seems to be a good alternative insecticidal gene. However, studies on sequence analysis, evolutionary relationship and expression patterns of garlic lectin genes remained elusive. Therefore, this study was envisaged to explore lectin gene sequence diversity in different species, and to analyze differential expression of lectin genes in garlic bulb, leaf and root tissues. Phylogenetic reconstruction did not reveal well-defined clusters indicating divergence in lectin sequences in different plant species. Multiple alignments exhibited conservation in lectin coding sequences in the middle regions. On the other hand, both the N-and Ctermini were quite divergent and size of the coding regions varied greatly in different orthologs probably due to exonization of introns. Semi-quantitative and quantitative RT-PCR exhibited elevated expression of lectin genes in garlic bulb as compared to leaf and root tissues. this study has future implications in transforming insecticidal genes in crops against sucking insects.

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Antifeedant effects of plant lectins and an enzyme on the adult stage of the rice brown planthopper, Nilaparvata lugens

Cited by 110 publications

References 22 publications

Plant‐insect interactions: what can we learn from plant lectins?

Plant‐insect interactions: what can we learn from plant lectins?

Prospects for using transgenic resistance to insects in crop improvement

Computational and Real-Time RT-PCR Expression Analyses of Garlic Lectin Gene

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