Work

Gené's Organ of Amblyomma sculptum (Acari: Ixodidae): Morphological Aspects on the First Day of Oviposition and Participation in the Lipid Composition of the Egg Wax

Year: 2026

Type: article

Abstract: The Gené's organ (GO) secretes a waxy substance on eggs that reduces water loss and has antimicrobial properties. The current study evaluated morphological and histochemical aspects of GO in Amblyomma sculptum on the 1st day of oviposition (DOV), as well as the neutral lipids found in the organ and wax. The morphological results showed that the glandular cells of the GO synthesize proteins. On the other hand, punctually, necrotic glandular cells and mitochondria were noted, with initial signs of degeneration, confirming the beginning of senescence of these cells. The analysis of the neutral lipids showed that the cranial and caudal glands have identical profiles, thus indicating that the individualization between them is simply anatomical. Still, the lipids found in the cranial and caudal glands were the same found in the wax showing that OG has an important function in the final synthesis of egg wax.

Source: Archives of Insect Biochemistry and Physiology

DOI: 10.1002/arch.70133

Authors: Marcelo Francisco dos Santos, Isabele da Costa Angelo, Hector Oreliana Fernandes Faria, Sayuri Miyamoto, Diva Denelle Spadacci‐Morena, Maria Anete Lallo

Institutions: Instituto Butantan, Universidade Paulista, Universidade Federal Rural do Rio de Janeiro, Universidade de São Paulo

Language: English

Topic: Study of Mite Species

Subfield: Ecology, Evolution, Behavior and Systematics

Field: Agricultural and Biological Sciences

Domain: Life Sciences

Open Access status: bronze

Funders: Fundação de Amparo à Pesquisa do Estado de São Paulo, Coordenação de Aperfeiçoamento de Pessoal de Nível Superior

Awards: Influence of B-1 cells or their extracellular vesicles on effector immune cell activity in microsporidiosis, G295657101