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Yusuf, Sri W.; Collins, Graham

doi:10.1023/a:1022308417053

Cited by 16 publications

(2 citation statements)

References 14 publications

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“…Infected leaves, however, were low in glucosinolate content, due to the stimulation of myrosinase and thus the higher levels of free thiocyanates. 73 A high concentration of glucosinolate might be thought to limit insect feeding more than a low level. However, four insect pests let loose on a low-seed and a commercial strain of Sinapis alba produced equal amounts of feeding damage.…”

Section: Phenolicsmentioning

confidence: 99%

Recent advances in chemical ecology

Harborne¹

1999

Nat. Prod. Rep.

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Section: Phenolicsmentioning

confidence: 99%

Recent advances in chemical ecology

Harborne¹

1999

Nat. Prod. Rep.

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“…et al 2007). Aphids suck plant sap using sharp mouthparts, and chlorophyllase and pectinase in their saliva affect plant growth and development (Yusuf. and Collins.…”

Section: Introductionmentioning

confidence: 99%

Indications for the potential of Cry1Ab1 for inhibiting aphid development and virus transmission

Jin

Zhang

Zhao

et al. 2022

Preprint

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Cry1A-type toxins are insecticidal proteins from Bacillus thuringiensis that are widely used to control Lepidoptera pests, and they are believed to be useless for the control of Hemiptera pests. In this paper, the purified Cry1Ab1 toxic core rarely killed peach aphids (Myzus persicae), as its Lethal Concentration 50 (LC50) was up to 1308.6 μg/ml, as measured using the membrane-encapsulation method. We then identified the proteins that bind to the Cry1Ab1 toxic core in M. persicae using pull-down assays and liquid chromatography−tandem mass spectrometry (LC-MS/MS), and then analyzed the associated functions of these proteins using the STRING database. GPN-loop GTPase 2, beta-actin, ATP synthase subunit alpha and an unknown and annotated protein, which are mainly involved in cell phagocytosis, RNA polymerase, cellular oxidative phosphorylation and other related functions, were the proteins that bound to the Cry1Ab1 toxic core. Indications from docking showed that Cry1Ab1 toxic core, ATP synthase subunit alpha and beta-actin or Cry1Ab1 toxic core, ATP synthase subunit alpha and GPN-loop GTPase 2 being a complex to exert effects. Based on the identification of Cry1Ab1-binding proteins from M.persicae, we presented here the molecular clues that Cry1A exert a negative effect on aphid growth and development, and we also proposed that Cry protein had the ability to disturb virus transmission by aphid. The two indications will result in new insights for aphid-effective Cry evaluation and improvement.

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Secondary metabolites of the leaf surface affected by sulphur fertilisation and perceived by the cabbage root fly

Marazzi¹,

Patrian²,

Städler³

2004

Chemoecology

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Surrogate leaves treated with methanolic leaf surface extracts of Brassica napus L. (cv Express) plants that received three different sulphur fertilisation treatments showed even more marked differences by the oviposition choice of Delia radicum L. than the potted plants. This confirms that the oviposition preference of D. radicum is mediated by chemical compounds on the leaf surface and that the quality of host-plants in terms of their nutrition status can be perceived by the female insect.The oviposition data were positively correlated with the content of fractionated surface extracts containing either CIF ("cabbage identification factor"; 1,2-dehydro-3-thia-4,10,10b-triaza-cyclopenta[.a.]fluorine-1-carboxylic acid) or glucosinolates. Electrophysiological recordings from the tarsal chemoreceptor sensilla C 5 and D 3,4 showed that receptor neurons react to glucosinolate-and CIF-fractions. We found that the chemosensory activity of specific glucosinolate-and CIF-receptor neurons corresponded with the respective behavioural activity in the oviposition choice assays. The responses of D. radicum to glucosinolates in the electrophysiological recordings studies corresponded to the observed oviposition preference on plants or artificial leaves characterised with an higher amount of glucosinolates on leave surfaces. The presented data suggested that CIF and glucosinolates are involved in host-plant preference of D. radicum and are perceived by tarsal chemoreceptors.

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Cited by 16 publications

References 14 publications

Recent advances in chemical ecology

Recent advances in chemical ecology

Indications for the potential of Cry1Ab1 for inhibiting aphid development and virus transmission

Secondary metabolites of the leaf surface affected by sulphur fertilisation and perceived by the cabbage root fly

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