Acute and oral exposure to imidacloprid does not affect the number of circulating hemocytes in the stingless bee Melipona quadrifasciata post immune challenge
Samira Veiga Ravaiano,Wagner Faria Barbosa,Hudson V. V. Tomé,Lucio Antonio de Oliveira Campos,Gustavo Ferreira Martins +4 more
TLDR
The findings showed that the relative number of granulocytes declined with imidacloprid exposure, but the overall capacity of hemocyte responses in terms of total numbers after bacterial infection persisted even after the insecticide exposure.About:
This article is published in Pesticide Biochemistry and Physiology.The article was published on 2018-11-01 and is currently open access. It has received 10 citations till now. The article focuses on the topics: Imidacloprid & Neonicotinoid.read more
Citations
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The stingless bees (Hymenoptera: Apidae: Meliponini): a review of the current threats to their survival
Erubiel Toledo-Hernández,Guadalupe Peña-Chora,Víctor Manuel Hernández-Velázquez,Caleb C. Lormendez,Jeiry Toribio-Jiménez,Yanet Romero-Ramírez,Renato León-Rodríguez +6 more
TL;DR: A review of works that evaluated the potential negative impacts of human activities on populations of stingless bees can be found in this article , which constitutes a strong body of evidence that stingless bee populations are at risk of decline around the world due to threats including habitat loss, agrochemicals, competition for resources, climate change, and the introduction of exotic species, including pathogens.
Journal ArticleDOI
The stingless bees (Hymenoptera: Apidae: Meliponini): a review of the current threats to their survival
Erubiel Toledo-Hernández,Guadalupe Peña-Chora,Víctor Manuel Hernández-Velázquez,Caleb C. Lormendez,Jeiry Toribio-Jiménez,Yanet Romero-Ramírez,Renato León-Rodríguez +6 more
TL;DR: A review of works that evaluated the potential negative impacts of human activities on populations of stingless bees can be found in this paper , which constitutes a strong body of evidence that stingless bee populations are at risk of decline around the world due to threats including habitat loss, agrochemicals, competition for resources, climate change, and the introduction of exotic species, including pathogens.
Journal ArticleDOI
Nosema ceranae causes cellular immunosuppression and interacts with thiamethoxam to increase mortality in the stingless bee Melipona colimana.
José Octavio Macías-Macías,José C. Tapia-Rivera,Alvaro De la Mora,José María Tapia-González,Francisca Contreras-Escareño,Tatiana Petukhova,Nuria Morfin,Ernesto Guzman-Novoa,Ernesto Guzman-Novoa +8 more
TL;DR: The results suggest that N. ceranae may infect, proliferate and cause cellular immunosuppression in stingless bees, that exposure to sublethal thiamethoxam concentrations is toxic to M. colimana when infected with N. Ceranae, and that thiamETHoxam restrains N. ceramice proliferation.
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What is the most suitable native bee species from the Neotropical region to be proposed as model-organism for toxicity tests during the larval phase?
Annelise de Souza Rosa-Fontana,Adna Suelen Dorigo,Juliana S. Galaschi-Teixeira,Roberta Cornélio Ferreira Nocelli,Osmar Malaspina +4 more
TL;DR: This study aimed to standardize in vitro larval rearing method for the stingless bee species Scaptotrigona postica and Tetragonisca angustula, and showed that S. postica was the most suitable native species to be proposed as model-organism for use in risk assessment.
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Changes in innate immune response and detoxification in Melipona quadrifasciata (Apinae: Meliponini) on oral exposure to azadirachtin and spinosad
Thaís Andrade Viana,Wagner Faria Barbosa,Anete Pedro Lourenço,Weyder Cristiano Santana,Lúcio Oliveira Campos,Gustavo Ferreira Martins +5 more
TL;DR: The results show that though bioinsecticides are considered safe, contamination by sublethal doses of azadirachtin and spinosad can interfere with the immune system of bees.
References
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Insect hemocytes and their role in immunity
M.D. Lavine,Michael R. Strand +1 more
TL;DR: The cellular immune responses of insects are discussed with emphasis on studies in Lepidoptera and Diptera, where most cellular defense responses involve granular cells and plasmatocytes, whereas in Drosophila they involve primarily plasMatocytes and lamellocytes.
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Threats to an ecosystem service: pressures on pollinators
TL;DR: It is argued that multiple anthropogenic pressures – including land-use intensification, climate change, and the spread of alien species and diseases – are primarily responsible for insect-pollinator declines.
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Cell-mediated immunity in arthropods: hematopoiesis, coagulation, melanization and opsonization.
TL;DR: The functions of hemocytes in innate immune response are reviewed with emphasized on their roles in coagulation, melanization and opsonization.
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Applied aspects of neonicotinoid uses in crop protection.
TL;DR: New formulations have been developed to optimize the bioavailability of neonicotinoids through improved rain fastness, better retention and spreading of the spray deposit on the leaf surface, combined with higher leaf penetration, which will turn neonic nicotine into the most important chemical class in crop protection within the next few years.
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Neonicotinoids—from zero to hero in insecticide chemistry
Peter Jeschke,Ralf Nauen +1 more
TL;DR: This review comprehensively describes particularly the origin, structure and bonding as well as associated properties of neonicotinoid insecticides.