نتایج جستجو برای: days myzus persicae

تعداد نتایج: 351781  

2018
Sandrine Mariella Bayendi Loudit Antoine Boullis François Verheggen Frédéric Francis

In response to a predator attack, many Aphidinae species release an alarm pheromone, which induces dispersal behavior in other individuals within the colony. The major component of this pheromone is the sesquiterpene (E)-β-farnesene (Eβf), but variations occur between aphid species. In the present work, we collected, identified, and quantified the alarm pheromone of Aphis craccivora Koch (Hemip...

Journal: :Zeitschrift fur Naturforschung. C, Journal of biosciences 2007
Eleuterio Burgueño-Tapia Azucena González-Coloma Darío Martín-Benito Pedro Joseph-Nathan

The antifeedant effect of six cacalolides and six eremophilanolides was tested against the herbivorous insects Spodoptera littoralis, Leptinotarsa decemlineata, and Myzus persicae. The test compounds included several natural products isolated from Senecio madagascariensis (14-isovaleryloxy-1,2-dehydrocacalol methyl ether, 4), S. barba-johannis (13-hydroxy-14-oxocacalohastine, 5; 13-acetyloxy-14...

2008
M.A.B. Herman B. A. Nault C. D. Smart

Plant growth-promoting rhizobacteria (PGPR) are known in various cropping systems to increase plant growth and vigor, as well as induce resistance to pathogens and pests. A commercial soil amendment containing a mixture of two species of Bacillus PGPR (Bacillus subtilis and Bacillus amyloliquefaciens) was evaluated for impact on germination and initial growth of bell pepper plants, efficacy aga...

Journal: :Molecules 2016
Yaoguo Qin Jingpeng Zhang Dunlun Song Hongxia Duan Wenhao Li Xinling Yang

In order to discover novel eco-friendly compounds with good activity for aphid control, (E)-β-farnesene (EβF), the main component of the aphid alarm pheromone, was chosen as the lead compound. By introducing a 2-nitroimino-hexahydro-1,3,5-triazine moiety (abbreviated NHT) to replace the unstable conjugated double bond system of EβF, a series of novel EβF analogues containing the NHT moiety were...

Journal: :The Journal of heredity 2013
Valentina Monti Chiara Serafini Gian Carlo Manicardi Mauro Mandrioli

A non-LTR TRAS retrotransposon (identified as TRASAp1) has been amplified in the pea aphid Acyrthosiphon pisum and its presence has been assessed also in the peach potato aphid Myzus persicae. This TRAS element possesses 2 overlapping ORFs (a gag-ORF1 and a pol-ORF2 containing the reverse transcriptase and the endonuclease domains) that show a similarity ranging from 40% to 48% to proteins code...

Journal: :The Journal of general virology 1994
J F van den Heuvel M Verbeek F van der Wilk

In order to understand the molecular mechanisms underlying circulative transmission of potato leafroll virus (PLRV) by aphids, we screened Myzus persicae proteins as putative PLRV binding molecules using a virus overlay assay of protein blots. In this way, we found that purified PLRV particles exhibited affinity for five aphid proteins. The one most readily detected has an M(r) of 63K, and was ...

Journal: :Insect biochemistry and molecular biology 1999
M Ono J J Swanson L M Field A L Devonshire B D Siegfried

The greenbug aphid, Schizaphis graminum (Rondani) has developed resistance to organophosphorus insecticides by the over-production of esterases that have been classified as Type I and Type II. The first twenty N-terminal amino acids of the Type I esterase were determined and used to design an oligonucleotide, which in conjunction with an active site primer derived from conserved sequences of ot...

Journal: :The Plant journal : for cell and molecular biology 2014
Clare L Casteel Chunling Yang Ananya C Nanduri Hannah N De Jong Steven A Whitham Georg Jander

Many plant viruses depend on aphids and other phloem-feeding insects for transmission within and among host plants. Thus, viruses may promote their own transmission by manipulating plant physiology to attract aphids and increase aphid reproduction. Consistent with this hypothesis, Myzus persicae (green peach aphids) prefer to settle on Nicotiana benthamiana infected with Turnip mosaic virus (Tu...

2014
Sophie Bouvaine Marie-Line Faure Robert J. Grebenok Spencer T. Behmer Angela E. Douglas

The aphid Myzus persicae displays high mortality on tobacco plants bearing a transgene which results in the accumulation of the ketosteroids cholestan-3-one and cholest-4-en-3-one in the phloem sap. To test whether the ketosteroids are the basis of the plant resistance to the aphids, M. persicae were reared on chemically-defined diets with different steroid contents at 0.1-10 µg ml(-1). Relativ...

Journal: :The Journal of general virology 2001
J Rouzé-Jouan L Terradot F Pasquer S Tanguy D Giblot Ducray-Bourdin D

Potato leafroll virus (PLRV) is transmitted by aphids in a persistent manner. Although virus circulation within the aphid leading to transmission has been well characterized, the mechanisms involved in virus recognition at aphid membranes are still poorly understood. One isolate in our collection (PLRV-14.2) has been shown to be non- or only poorly transmitted by some clones of aphids belonging...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید