Results 171 to 180 of about 2,365 (214)

Alatae production in the cereal aphid Sitobion avenae

Netherlands Journal of Plant Pathology, 1983
Crowding of L3, L4 and apterous adults ofSitobion avenae results in an increase in production of alate offspring. Crowding of L1 and L2 results in a slight increase in their number becoming alatae. Fewer alatae are produced by apterae on ears before and during flowering than in later ear developmental stages or on seedling leaves.
Ankersmit, G.W., Dijkman, H.
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The complete mitochondrial genome of Sitobion avenae (Hemiptera: Aphididae)

Mitochondrial DNA Part A, 2014
In this paper, we sequenced the complete mitogenome of the English grain aphid, Sitobion avenae. The mitogenome was mainly consisted of 13 protein-coding genes, 22 tRNA genes, 2 rRNA genes, and 2 large noncoding regions. The 15,180-bp mitogenome with a high A + T content (84.22%) was arranged in the same gene order as that of the ancestral insect.
Zhang, Bo, Zheng, Jincheng, Liang, Lina, Fuller, Susan, Ma, Chen-Sen   +4 more
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Sitobion avenae . [Distribution map].

Distribution Maps of Plant Pests, 2006
Abstract A new distribution map is provided for Sitobion avenae (Fabricius) Hemiptera: Aphididae Hosts: Gramineae, mainly wheat ( Triticum aestivum ), barley ( Hordeum vulgare ) and oats ( Avena sativa ).
null CABI, null EPPO
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INFLUENCE OF CATALASE GENE SILENCING ON THE SURVIVABILITY OF SITOBION AVENAE

Archives of Insect Biochemistry and Physiology, 2014
Reactive oxygen species (ROS), such as superoxide anions and hydrogen peroxide produced in cell metabolism, result in the disruption of cellular function and structure. Catalase (CAT), an enzyme which exists in almost all organisms including plants, invertebrates and vertebrates, acts in scavenging ROS. In this study, a sequence fragment encoding a CAT‐
Fei, Deng, Zhangwu, Zhao
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Economics of Sitobion avenae (Aphididae) forecasting and control in the UK

Crop Protection, 1986
Abstract Control strategies for the aphid Sitobion avenae (F.) (a sporadic pest) on winter wheat are considered in relation to farm type and size, level of inputs and aphid-control costs. Within-year costings allowed strategies to be compared (no control, prophylaxis and forecasting) on the basis of net enterprise profit.
E. Griffiths, J. Holt
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Functional analyses of the salivary protein SaE23 in Sitobion avenae

International Journal of Biological Macromolecules
To counteract host plant defenses, aphids secrete salivary effectors during feeding. Exact functional roles of many salivary effectors in Sitobion avenae (Fabricius), are still elusive. Here, we cloned a salivary glutathione peroxidase (GPx) coding gene (i.e., SaE23) in S. avenae.
Zheming, Shang, Jingyuan, Yang, Renfu, Zhang, Deguang, Liu   +3 more
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Antimetabolic effect of phytohemagglutinin to the grain aphidSitobion avenaefabricius

Acta Biologica Hungarica, 2012
The insecticidal activity of plant lectins against a wide range of insect species have been intensively studied. Understanding the mechanism of the toxicity of lectins is one of the studied aspects. In the present research, the first step was determine the effect of phytohemagglutinin (PHA) on the development, fecundity and mortality of grain aphid ...
Sprawka, Iwona, Goławska, Sylwia, Goławski, A., Czerniewicz, P., Sytykiewicz, H.   +4 more
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Sitobion avenae Transcriptome or Gene expression

2013
Transcriptome Profiling of Grain Aphid (Sitobion avenae F.) Alimentary Canal Revealed Insights into the Involvement of Diversified Genes and/or Pathways upon Feeding and Supplied an Effective Way to Screen RNAi Targets for Aphid Control in Wheat. Apterous adult grain aphids (S.
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A model describing the population dynamics of Sitobion avenae and Coccinella septempunctata

Ecological Modelling, 1997
Abstract A model that described the summer population dynamics of the cereal aphid Sitobion avenae (Carter et al., 1982) was modified and extended to include the population dynamics of the aphidophagous predator Coccinella septempunctata . New equations were formulated to describe the dependence of aphid development and reproduction on temperature.
D.J. Skirvin, J.N. Perry, R. Harrington
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The role of awns in the resistance of cereals to the grain aphid, Sitobion avenae

Annals of Applied Biology, 1986
SUMMARYSix genotypes of awned spring wheat were more resistant to Sitobion avenae than de‐awned wheat. Aphids that fed on awns were up to 22% less fecund and were more likely to be dislodged than aphids that fed elsewhere on an ear. These two factors reduced aphid population growth on awned earing plants in the field to a third of that observed on ...
T. M. ACREMAN, A. F. G. DIXON
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