Impact of low temperatures on the immune system of honeybees

Autor(es)

Butolo, N. P. ^[1] ; Azevedo, P. ^[2] ; Alencar, L. D. ^[2] ; Malaspina, O. ^[1] ; Nocelli, R. C. F. ^[3]

Afiliação do(s) autor(es)

^[1] Univ Estadual Paulista Julio de Mesquita Filho UN, Ctr Estudos Insetos Sociais CEIS, Inst Biociencias, Programa Posgrad Biol Celular & Mol, Rio Claro, SP - Brazil

^[2] Univ Estadual Campinas UNICAMP SP, Grupo Genet & Genom Conservacao, Inst Biol, Programa Posgrad Genet & Biol Mol, Campinas, SP - Brazil

^[3] Univ Fed Sao Carlos UFSCar SP, Dept Ciencias Nat Matemat & Educ, Ctr Ciencias Agr, Araras, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Journal of Thermal Biology; v. 101, OCT 2021.
• Citações Web of Science: 0

Resumo

Changes in temperature resulting from climate change can impact the distribution and survival of species, including bees, where temperature may also affect their immune system. Evaluation of immune system activity is often performed by the total count of circulating hemocytes in the hemolymph. However, there are few studies on bees examining the relationship between the amount of circulating hemocytes and temperature. This study evaluated changes of circulating hemocytes in Apis mellifera hemolymph at different temperatures and development stages. Total hemocytes of bees were determined at -8, 16, 24, and 32 degrees C - and at different development stages-in vivo larvae, in vitro larvae, newly emerged, and forager bees. A. mellifera larvae had a greater number of circulating hemocytes compared to the other development stages (newly emerged and foragers). Additionally, temperature was an important factor explaining variation of circulating hemocytes in the hemolymph, according to principal component analyses (PCA), as the number of circulating hemocytes was greater at higher temperatures. Therefore, extreme events arising from climate change, such as variation in temperature, can directly impact the immune system of bees, both individually and at the colony level, threatening the distribution and survival of several species. (AU)

• Processo FAPESP: 18/24245-6 - Genômica, transcriptômica e metagenômica em populações de abelhas nativas sem ferrão visando a busca de genes de detoxificação
• Beneficiário: Patricia Azevedo
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 17/21097-3 - Interações abelha-agricultura: perspectivas para a utilização sustentável
• Beneficiário: Osmar Malaspina
• Modalidade de apoio: Auxílio à Pesquisa - Programa BIOTA - Temático