Developmental and morphogenetic alterations in larvae of Locusta migratoria reared on plant diet with a selectively modified sterol profile

Charlet, Maurice; Roussel, J.‐P.; Rinternecht, Elisabeth; Berchtold, Jean-Pierre; Costet, M.F. Corio

doi:10.1016/0022-1910(88)90153-9

Cited by 14 publications

(12 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Morphogenic alterations in wing development and malformation of adults were observed in locusts reared on treated wheat (Charlet et al 1988). Abnormalities in the growth and development of the bertha armyworm and locusts fed plants treated with Fig.…”

Section: Discussionmentioning

confidence: 98%

“…Larval survival was high on both fenpropimorph-treated and control plants. By contrast, larval survival and the number of instars of L. migratoria reared on fenpropimorph-treated wheat seedlings decreased and the time spent in instars beyond the first increased (Charlet et al 1988). Mortality of the bertha armyworm fed fenpropimorph-treated canola was highest at pupation and during pupal-adult development.…”

Section: Discussionmentioning

confidence: 99%

“…Wheat seedlings, Triticum aestivum L., treated with fenpropimorph, show a drastically reduced level of their usual ∆ 5 -phytosterols and replacement by 9β, 19-cyclopropyl and ∆ 8 -sterols. Larvae of locusts, Locusta migratoria, fed fenpropimorph-treated wheat displayed delayed development, morphogenic alterations and adults laid eggs in which embryonic development was disturbed (Costet et al 1987;Charlet et al 1988). There have been few other studies on insect utilization of plants with an altered sterol profile, in particular studies on holometabolous insect pests and on insects that harbour symbionts.…”

mentioning

confidence: 99%

See 2 more Smart Citations

Effects of modifying the phytosterol profile of canola, Brassica napus L., on growth, development, and survival of the bertha armyworm, Mamestra configurata Walker (Lepidoptera: Noctuidae), the flea beetle, Phyllotreta cruciferae (Goeze) (Coleoptera: Chrysomelidae) and the aphids, Lipaphis erysimi (Kaltenbach) and Myzus persicae (Sulzer) (Homoptera: Aphididae)

Bodnaryk¹,

Luo²,

Kudryk³

1997

Can. J. Plant Sci.

View full text Add to dashboard Cite

Bodnaryk, R. P., Luo, M. and Kudryk, L. 1997. Effects of modifying the phytosterol profile of canola, Brassica napus L., on growth, development, and survival of the bertha armyworm, Mamestra configurata Walker (Lepidoptera: Noctuidae), the flea beetle, Phyllotreta cruciferae (Goeze) (Coleoptera: Chrysomelidae) and the aphids, Lipaphis erysimi (Kaltenbach) and Myzus persicae (Sulzer) (Homoptera: Aphididae). Can. J. Plant Sci. 77: 677-683. The sterol profile of canola, Brassica napus, was altered by treatment with 5 ppm of the systemic fungicides fenpropimorph and tridemorph. The usual ∆ 5 -phytosterols sistosterol, campesterol, and stigmasterol were depleted in leaves and roots and replaced by unusual 4-alpha-methyl and 4-desmethyl sterols that were never observed in untreated plants. Growth, development, and survival of the bertha armyworm, Mamestra configurata, fed leaves of treated canola in the laboratory were affected adversely at specific stages in the life cycle. Larval survival was high and not significantly different in treated and control groups. Most of the mortality in the treated group occurred at pupation and during pupal-adult development. At ecolosion a high proportion of adults were deformed (crumpled wings, failure to exit the pupal case). The adverse effects of feeding on fenpropimorph-treated canola were not attributable to the fungicide itself because larvae fed an artificial diet containing a 10-fold higher concentration of fenpropimorph had normal growth, development, and survival.Although larvae of M. configurata fed canola with a modified sterol profile showed no obvious physiological symptoms, the larvae were more susceptible to the insecticide methomyl (Lannate). Phytosterol modification of the plant in combination with insecticide application may lead to a synergistic interaction in the pest insect.Fewer larvae, prepupae and pupae of the flea beetle, Phyllotreta cruciferae, were recovered from soil samples in field plots with canola treated with fenpropimorph or tridemorph in the laboratory. Adult beetles began to emerge from the soil later, emergence progressed more slowly and fewer were trapped in plots with treated canola.Fewer larvae and adults (up to 50% reduction) of the aphids M. persicae and Lipaphis erysimi, were produced on canola treated with tridemorph. Since aphids harbour sterol-synthesizing mycetocyte-symbionts and are not dependent on a dietary source of sterols, factors other than a deficiency of ∆ 5 -phytosterols must be responsible for the reduction in aphid numbers on treated plants. Le profil stérolique du colza canola (Brassica napus) a été modifée par traitement aux fongicides systémiques fenpropimorphe et tridémorphe. Les concentrations de ∆5-phytostérols : sistostérol, campestérol et stigmastérol étaient réduites dans les feuilles et les racines et remplacées par des 4-alpha-méthyl et 4-desméthyl stérols encore non identifiés, qu'on n'avait jamais observés chez les plantes non traitées. La croissance, la biologie et la survie de la légionnaire bertha, Mamestra ...

show abstract

Section: Discussionmentioning

confidence: 98%

Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 99%

See 1 more Smart Citation

Effects of modifying the phytosterol profile of canola, Brassica napus L., on growth, development, and survival of the bertha armyworm, Mamestra configurata Walker (Lepidoptera: Noctuidae), the flea beetle, Phyllotreta cruciferae (Goeze) (Coleoptera: Chrysomelidae) and the aphids, Lipaphis erysimi (Kaltenbach) and Myzus persicae (Sulzer) (Homoptera: Aphididae)

Bodnaryk¹,

Luo²,

Kudryk³

1997

Can. J. Plant Sci.

View full text Add to dashboard Cite

show abstract

“…In adult L. migratoria, it was also shown that PG extirpation does not affect the hemolymph titer of ecdysteroids (Lagueux et al, 1977). The role of adult PG may lie in the production of a peptidic regulator (Charlet et al, 1988) rather than in the secretion of ecdysteroids, but it is also possible that their potential to produce ecdysteroids has not been examined under proper conditions.…”

Section: Introductionmentioning

confidence: 95%

Humoral stimulation of the larval and adult prothoracic glands inSchistocerca gregaria

Vedrová

Sehnal

1997

Arch. Insect Biochem. Physiol.

View full text Add to dashboard Cite

“…When fed wheat seedlings treated with a fungicide (fenpropimorph) that greatly reduced the content of normal A 5 -sterols while increasing the 9P,19-cyclopropylsterols in the plants (12)(13)(14), the locusts were unable to produce sufficient cholesterol to support normal development, and ecdysteroid titers were greatly reduced.…”

Section: Orthoptera -Cockroaches and Locusts Or Grasshoppersmentioning

confidence: 98%

Evolutionary Aspects of Steroid Utilization in Insects

Svoboda

Feldlaufer

Weirich

1994

ACS Symposium Series

View full text Add to dashboard Cite

Developmental and morphogenetic alterations in larvae of Locusta migratoria reared on plant diet with a selectively modified sterol profile

Cited by 14 publications

References 7 publications

Humoral stimulation of the larval and adult prothoracic glands inSchistocerca gregaria

Evolutionary Aspects of Steroid Utilization in Insects

Contact Info

Product

Resources

About