Results 31 to 40 of about 31,208 (268)
Studies on Aphididæ. I.* [PDF]
What is supposed to be this species was first described by Asa Fitch in his âCatalogueof the Homoptera of New Yorkâ in 1851 as Aphis betulA¦colens . Monell described it from Missouri as Callipterus betulA¦colens , n. sp., and placed Aphis betulA¦colens of Fitch as doubtfully synonymous. Thomas hesitatingly placed this species and Calaphis betulella
openaire +5 more sources
Molecular evolution of aphids and their primary ( Buchnera sp.) and secondary endosymbionts: implications for the role of symbiosis in insect evolution. [PDF]
Aphids maintain an obligate, endosymbiotic association with Buchnera sp., a bacterium closely related to Escherichia coli. Bacteria are housed in specialized cells of organ-like structures called bacteriomes in the hemocoel of the aphid and are ...
Ham, R.C.H.J., van+5 more
core +6 more sources
The black citrus aphid Aphis aurantii is a major pest of citrus and tea plants. In this study, we determined the complete mitochondrial genome (mitogenome) of A. aurantii.
Ying Wang+3 more
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Flight activity of aphids as potential vectors of viral infection of alfalfa in Serbia [PDF]
Flight activity of aphids as potential vectors of viral infection of alfalfa plants were monitored in Serbia for the first time in Europe. Research was conducted at the location Progar (Srem) for two years using six yellow water traps.
Jovičić Ivana+2 more
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Was Dan Janzen (1977) right about aphid clones being a "super-organism", i.e. a single "evolutionary individual"? : new insights from the use of molecular marker systems [PDF]
Dan Janzen proposed in a paper in 1977 (loc. cit.), that a clone of aphids and for that matter dandelions consists, respectively, of one large ‘super-organism’.
Loxdale, Hugh D.
core +1 more source
Aphid gosypii Glover, 1877 is a widely recognized economically important aphid species in the world. We have determined mitochondrial genome of A. gossypii collected in Korean peninsula. The circular mitogenome of A.
Jonghyun Park+4 more
doaj +1 more source
Markers are essential to study movements of insects in their natural habitat. Among the available techniques, trace elements may be applied to insects as small as parasitoids. Rubidium is the most common element used for marking insects.
Frédéric MURATORI+2 more
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In the present paper we describe for the first time the ultrastructure of the male reproductive system of aphids using Phyllaphis fagi as a representative. Paired testes of this species consist of three follicles each, arranged in a rosette, the walls of
Karina WIECZOREK, Piotr SWIĄTEK
doaj +1 more source
Facultative symbionts associated with aphid populations in citrus orchards in northern Tunisia
Like many insects, aphids (Hemiptera: Aphididae) can host a wide diversity of symbiotic bacteria that can be important drivers of their evolutionary ecology.
François RENOZ+5 more
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Grass Hosts of Cereal Aphids (Hemiptera: Aphididae) Between Wheat-Cropping Cycles in South Dakota [PDF]
Several grasses may serve as alternative hosts for cereal aphids during the interim between small-grain crops in South Dakota, but field studies to determine which grasses are important have not been undertaken.
Dagel, Kurt J, Hesler, Louis S
core +1 more source