The activity of some compounds extracts byAllium on stored-product insectsOryzaephilus surinamensis (L.),Sitophilus oryzae (L.) andTribolium castaneum (Herbst)

1999 ◽  
Vol 72 (5) ◽  
pp. 122-125
Author(s):  
P. Trematerra ◽  
V. Lanzotti
Keyword(s):  
Sitophilus Oryzae

Phytochemical profile and insecticidal activity of Agave americana leaf extract towards Sitophilus oryzae (L.) (Coleoptera: Curculionidae)

2019 ◽  
Vol 26 (19) ◽  
pp. 19468-19480 ◽  
Author(s):  
Asma Mami Maazoun ◽  
Soumaya Haouel Hamdi ◽  
Feten Belhadj ◽  
Jouda Mediouni Ben Jemâa ◽  
Chokri Messaoud ◽  
...  
Keyword(s):  
Insecticidal Activity ◽  
Leaf Extract ◽  
Sitophilus Oryzae ◽  
Agave Americana ◽  
Phytochemical Profile

Rice cultivars affect fitness-related characteristics and digestive physiology of the rice weevil, Sitophilus oryzae (L.) (coleoptera: Curculionidae)

2021 ◽  
Vol 93 ◽  
pp. 101821
Author(s):  
Mahdi Jalaeian ◽  
Mozhgan Mohammadzadeh ◽  
Mohammad Mohammadzadeh ◽  
Ehsan Borzoui
Keyword(s):  
Sitophilus Oryzae ◽  
Rice Weevil ◽  
Rice Cultivars ◽  
Digestive Physiology

Repellent Efficacy of Caraway and Grapefruit Oils for Sitophilus oryzae (Coleoptera: Curculionidae)

2007 ◽  
Vol 10 (3) ◽  
pp. 263-267 ◽  
Author(s):  
Changmann Yoon ◽  
Shin-Ho Kang ◽  
Sun-Ah Jang ◽  
Young-Jae Kim ◽  
Gil-Hah Kim
Keyword(s):  
Sitophilus Oryzae

scholarly journals The Phytopathogen Dickeya dadantii (Erwinia chrysanthemi 3937) Is a Pathogen of the Pea Aphid

2006 ◽  
Vol 72 (3) ◽  
pp. 1956-1965 ◽  
Author(s):  
Anne-Marie Grenier ◽  
Gabrielle Duport ◽  
Sylvie Pagès ◽  
Guy Condemine ◽  
Yvan Rahbé
Keyword(s):  
Acyrthosiphon Pisum ◽  
Ecological Impact ◽  
Sitophilus Oryzae ◽  
Pea Aphid ◽  
Erwinia Chrysanthemi ◽  
Future Research ◽  
Close Relative ◽  
Bacterial Cells ◽  
Dickeya Dadantii ◽  
Phytopathogenic Bacterium

ABSTRACT Dickeya dadantii (Erwinia chrysanthemi) is a phytopathogenic bacterium causing soft rot diseases on many crops. The sequencing of its genome identified four genes encoding homologues of the Cyt family of insecticidal toxins from Bacillus thuringiensis, which are not present in the close relative Pectobacterium carotovorum subsp. atrosepticum. The pathogenicity of D. dadantii was tested on the pea aphid Acyrthosiphon pisum, and the bacterium was shown to be highly virulent for this insect, either by septic injury or by oral infection. The lethal inoculum dose was calculated to be as low as 10 ingested bacterial cells. A D. dadantii mutant with the four cytotoxin genes deleted showed a reduced per os virulence for A. pisum, highlighting the potential role of at least one of these genes in pathogenicity. Since only one bacterial pathogen of aphids has been previously described (Erwinia aphidicola), other species from the same bacterial group were tested. The pathogenic trait for aphids was shown to be widespread, albeit variable, within the phytopathogens, with no link to phylogenetic positioning in the Enterobacteriaceae. Previously characterized gut symbionts from thrips (Erwinia/Pantoea group) were also highly pathogenic to the aphid, whereas the potent entomopathogen Photorhabdus luminescens was not. D. dadantii is not a generalist insect pathogen, since it has low pathogenicity for three other insect species (Drosophila melanogaster, Sitophilus oryzae, and Spodoptera littoralis). D. dadantii was one of the most virulent aphid pathogens in our screening, and it was active on most aphid instars, except for the first one, probably due to anatomical filtering. The observed difference in virulence toward apterous and winged aphids may have an ecological impact, and this deserves specific attention in future research.

Properties of glycylglycine dipeptidase from Sitophilus oryzae (L.)

1965 ◽  
Vol 11 (9) ◽  
pp. 1179-1184
Author(s):  
K.N. Mehrotra
Keyword(s):  
Sitophilus Oryzae
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