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Titolo:
Effect of plant age, larval age, and fertilizer treatment on resistance ofa cry1Ab-transformed aromatic rice to lepidopterous stem borers and foliage feeders
Autore:
Alinia, F; Ghareyazie, B; Rubia, L; Bennett, J; Cohen, MB;
Indirizzi:
Int Rice Res Inst, Entomol & Plant Pathol Div, Makati City 1271, Metro Manila, Philippines Int Rice Res Inst Makati City Metro Manila Philippines 1271 , Philippines Rice Res Inst Iran, Rasht, Iran Rice Res Inst Iran Rasht IranRice Res Inst Iran, Rasht, Iran Int Rice Res Inst, Plant Breeding Genet & Biochem Div, Makati City 1271, Metro Manila, Philippines Int Rice Res Inst Makati City Metro Manila Philippines 1271 , Philippines Agr Biotechnol Res Inst, Seed & Plantlet Improvement Res Inst, Karaj, IranAgr Biotechnol Res Inst Karaj Iran et Improvement Res Inst, Karaj, Iran
Titolo Testata:
JOURNAL OF ECONOMIC ENTOMOLOGY
fascicolo: 2, volume: 93, anno: 2000,
pagine: 484 - 493
SICI:
0022-0493(200004)93:2<484:EOPALA>2.0.ZU;2-C
Fonte:
ISI
Lingua:
ENG
Soggetto:
CARBON-ASSIMILATING ENZYMES; DELTA-ENDOTOXIN GENE; BACILLUS-THURINGIENSIS; SYNTHETIC CRYIA(B); TRANSGENIC COTTON; MAIZE; EXPRESSION; NITROGEN; PROTEIN; NOCTUIDAE;
Keywords:
Bacillus thuringiensis; Chilo suppressalis; Scirpophaga incertulas; transgenic rice; nutrient-pest interaction;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
29
Recensione:
Indirizzi per estratti:
Indirizzo: Cohen, MB Int Rice Res Inst, Entomol & Plant Pathol Div, POB 3127 Makati Cent PO, Makati City 1271, Metro Manila, Philippines Int Rice Res Inst POB 3127 Makati Cent PO Makati City Metro Manila Philippines 1271
Citazione:
F. Alinia et al., "Effect of plant age, larval age, and fertilizer treatment on resistance ofa cry1Ab-transformed aromatic rice to lepidopterous stem borers and foliage feeders", J ECON ENT, 93(2), 2000, pp. 484-493

Abstract

The resistance of vegetative, booting, and flowering stage plants of a variety of an aromatic rice, Oryza sativa L., transformed with a Bacillus thuringiensis Berliner cry1Ab gene under control of the maize phosphoenolpyruvate carboxylase (PEPC) promoter was evaluated against four lepidopterous lice pests-the stem borers Chilo suppressalis (Walker) (Lepidoptera: Crambidae) and Scirpophaga incertulas (Walker) (Lepidoptera: Pyralidae), and the foliage feeders Cnaphalocrocis medinalis Guenee (Lepidoptera: Pyralidae) and Naranga aenescens Moore (Lepidoptera: Noctuidae). Plants of the cry1Ab-transformed line (no. 827) were more resistant to young, larvae of S. incertulas. C. suppressalis, and C. medinalis than control plants at the vegetative stage but not at the flowering stage. Survival of 10-d-old stem borer larvaedid not differ on cry1Ab plants and control plants at either the vegetative or flowering stage, but the development of 10-d-old C. suppressalis larvae was retarded on the vegetative stage cry1Ab plants. Immunological analysis also showed an apparent decline in Cry1Ab titer in leaf blades and leaf sheaths at the reproductive stage. In experiments comparing three fertilizertreatments (NPK, PK, and none), there was a significant interaction between fertilizer treatment and variety on larval survival only in whole-plant assays at booting stage with C. suppressalis. On cry1Ab plants, larval survival did not differ significantly among the three fertilizer levels, whereason control plants survival was highest with the NPK treatment. cry1Ab plants tested at the sixth and seventh generations after transformation were more resistant than control plants to N. aenescens and C, suppressalis, respectively, suggesting that gene silencing will not occur in line 827. The results of the experiments are discussed in terms of resistance management forB. thuringiensis toxins in rice.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 18/01/21 alle ore 15:37:17