Results 51 to 60 of about 27,050 (276)

Microbiome diversity of cotton aphids (Aphis gossypii) is associated with host alternation

open access: yesScientific Reports, 2021
Aphids are infected by a series of bacteria that can help them survive on specific host plants. However, the associations between aphids and these bacteria are not clear, and the bacterial communities in many aphid species are poorly characterized. Here,
Yan-jie Ma   +6 more
semanticscholar   +1 more source

Complex evolution in Aphis gossypii group (Hemiptera: Aphididae), evidence of primary host shift and hybridization between sympatric species.

open access: yesPLoS ONE, 2021
Aphids provide a good model system to understand the ecological speciation concept, since the majority of the species are host-specific, and they spend their entire lifecycle on certain groups of host plants.
Yerim Lee, Thomas Thieme, Hyojoong Kim
doaj   +1 more source

New Measurements and Phase Shift Analysis of p16O Elastic Scattering at Astrophysical Energies [PDF]

open access: yesChin. Phys. 2017. V.C41. P.014001(10p.), 2015
The results of new experimental measurements of p16O elastic scattering in the energy range of 0.6-1.0 MeV at angles of 40-160 deg. are given. Phase shift analysis of p16O elastic scattering was made using these and other experimental data on differential cross sections in excitation functions and angular distributions at energies of up to 2.5 MeV.
arxiv   +1 more source

Aphidiinae (Hymenoptera, Braconidae) aphid parasitoids of Malta : review and key to species [PDF]

open access: yes, 2015
This paper brings an annotated list of the 16 aphid parasitoids detected up to 2015 in Malta. All the species were reared from identified aphid-plant associations. An illustrated key to the identification of the recorded species from Malta is provided.
Mifsud, David   +3 more
core   +1 more source

Primeiro Registro de Afídeos (Hemiptera: Aphidoidea) em Carambola (Averrhoa carambola L.) no Brasil

open access: yesEntomoBrasilis, 2016
A carambola (Averrhoa carambola L.) árvore de origem Asiática foi introduzida no Brasil em 1817, desde então vem aumentando sua área de cultivo no país. A planta é atacada por poucos insetos como as moscas e percevejos. Este trabalho relata a presença de
Suzan Beatriz Zambon da Cunha   +1 more
doaj   +1 more source

Study of the nucleon radiative captures 8Li(n,gamma)9Li, 9Be(p,gamma)10B, 10Be(n,gamma)11Be, 10B(p,gamma)11C, and 16O(p,gamma)17F at thermal and astrophysical energies [PDF]

open access: yesInt. J. Mod. Phys. 2017. #3. V.26. P.1630009 (56p.), 2017
We have studied the neutron-capture reactions 8Li(n,gamma)9Li and its role in the primordial nucleosynthesis. The n + 8Li --> 9Li + gamma reaction has a significant astrophysical interest because it includes one of the variants of chain of primordial nucleosynthesis processes of the Universe and thermonuclear reactions in type II supernova.
arxiv   +1 more source

First record of larvae of Allograpta exotica Wiedemann (Diptera, Syrphidae) preying on Aphis gossypii Glover (Hemiptera, Aphididae) in watermelon in Brazil

open access: yesRevista Brasileira de Entomologia, 2011
First record of larvae of Allograpta exotica Wiedemann (Diptera, Syrphidae) preying on Aphis gossypii Glover (Hemiptera, Aphididae) in watermelon in Brazil. Brazil is one of the largest world producers of watermelon (Citrullus lanatus Thumb.
Vinícius Soares Sturza   +4 more
doaj   +2 more sources

Preference of two populations of Propylea quatuordecimpunctata (Coleoptera: Coccinellidae) for Aphis fabae and Aphis gossypii (Homoptera: Aphididae)

open access: yesEuropean Journal of Entomology, 2015
Prey preference of natural enemies is an important parameter used in studies on their efficiency. Feeding preferences of individuals from two populations of Propylea quatuordecimpunctata (L.) (Coleoptera: Coccinellidae) for the essential prey items ...
Maryam KESHAVARZ   +2 more
doaj   +1 more source

New results for the astrophysical S-factor and reaction rate of radiative 3He4He capture [PDF]

open access: yesIndian Jour. Phys. 2019. 93. 3. 279-283, 2017
In the frame of modified potential cluster model based on the classification of orbital states by Young diagrams and revised interaction potential parameters for the bound states of 7Be in 3He4He cluster model with forbidden states the astrophysical S-factor for the radiative capture reaction has been calculated from the 10 keV.
arxiv   +1 more source

Inheritance of resistance to cotton blue disease [PDF]

open access: yes, 2008
The objective of this work was to determine the inheritance of cotton blue disease resistance by cotton plants. Populations derived from the CD 401 and Delta Opal resistant varieties were evaluated, through a greenhouse test with artificial inoculation ...
Barroso, Paulo Augusto Vianna   +7 more
core   +1 more source

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