Development, feeding, and sex shape the relative quantity of the nutritional obligatory symbiont Wolbachia in bed bugs

Autor: Marius Poulain, Elodie Rosinski, Hélène Henri, Séverine Balmand, Marie-Laure Delignette-Muller, Abdelaziz Heddi, Romain Lasseur, Fabrice Vavre, Anna Zaidman-Rémy, Natacha Kremer

Publikováno v: Frontiers in Microbiology, Vol 15 (2024)

The common bed bug, Cimex lectularius, is a hemipteran insect that feeds only on blood, and whose bites cause public health issues. Due to globalization and resistance to insecticides, this pest has undergone a significant and global resurgence in re

Externí odkaz: https://doaj.org/article/93a78e97a7524acc834156c09cb35e10

Endosymbiont-containing germarium transcriptional survey in a cereal weevil depicts downregulation of immune effectors at the onset of sexual maturity

Autor: Mariana Galvão Ferrarini, Agnès Vallier, Elisa Dell’Aglio, Séverine Balmand, Carole Vincent-Monégat, Mériem Debbache, Justin Maire, Nicolas Parisot, Anna Zaidman-Rémy, Abdelaziz Heddi, Rita Rebollo

Publikováno v: Frontiers in Physiology, Vol 14 (2023)

Insects often establish long-term relationships with intracellular symbiotic bacteria, i.e., endosymbionts, that provide them with essential nutrients such as amino acids and vitamins. Endosymbionts are typically confined within specialized host cell

Externí odkaz: https://doaj.org/article/d5cd17b0bb7c4f0ea276f5257f009efc

Bacteriocyte plasticity in pea aphids facing amino acid stress or starvation during development

Autor: Mélanie Ribeiro Lopes, Karen Gaget, François Renoz, Gabrielle Duport, Séverine Balmand, Hubert Charles, Patrick Callaerts, Federica Calevro

Publikováno v: Frontiers in Physiology, Vol 13 (2022)

An important contributing factor to the evolutionary success of insects is nutritional association with microbial symbionts, which provide the host insects with nutrients lacking in their unbalanced diets. These symbionts are often compartmentalized

Externí odkaz: https://doaj.org/article/9f128f4cdb094531ba079c3cfcc9e47a

The interaction of the bioinsecticide PA1b (Pea Albumin 1 subunit b) with the insect V-ATPase triggers apoptosis

Autor: Vanessa Eyraud, Séverine Balmand, Lamis Karaki, Isabelle Rahioui, Catherine Sivignon, Agnès F. Delmas, Corinne Royer, Yvan Rahbé, Pedro Da Silva, Frédéric Gressent

Publikováno v: Scientific Reports, Vol 7, Iss 1, Pp 1-10 (2017)

Abstract PA1b (Pea Albumin 1, subunit b) peptide is an entomotoxin, extracted from Legume seeds, with a lethal activity towards several insect pests, such as mosquitoes, some aphids and cereal weevils. This toxin acts by binding to the subunits c and

Externí odkaz: https://doaj.org/article/7193b3596f33475aa472de278324cf70

Spatial and morphological reorganization of endosymbiosis during metamorphosis accommodates adult metabolic requirements in a weevil

Autor: Sandrine Hughes, Anna Zaidman-Rémy, Séverine Balmand, Agnès Vallier, Nicolas Parisot, Mariana Galvão Ferrarini, Justin Maire, Benjamin Gillet, Abdelaziz Heddi, Carole Vincent-Monégat

Publikováno v: Proceedings of the National Academy of Sciences of the United States of America
Proceedings of the National Academy of Sciences of the United States of America, National Academy of Sciences, 2020, 117 (32), pp.19347-19358. ⟨10.1073/pnas.2007151117⟩
Proc Natl Acad Sci U S A
Proceedings of the National Academy of Sciences of the United States of America, 2020, 117 (32), pp.19347-19358. ⟨10.1073/pnas.2007151117⟩

Bacterial intracellular symbiosis (endosymbiosis) is widespread in nature and impacts many biological processes. In holometabolous symbiotic insects, metamorphosis entails a complete and abrupt internal reorganization that creates a constraint for en

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3c42484bf6ec3c52531c15c1dad9cba0
https://doi.org/10.1073/pnas.2007151117