9 hasil untuk "Mathilde Scheifler"

A Comparative Study of the Dynamics and Diversity of Bdellovibrio and Like Organisms in Lakes Annecy and Geneva

Jade A. Ezzedine; Mathilde Scheifler; Yves Desdevises dkk.

Microorganisms, Vol. 10 No. 10 · 2022 · Inggris · DOAJ Scopus

Bdellovibrio and like organisms (BALOs) are obligate bacterial predators of other Gram-negative bacteria. Here, we used quantitative PCR (qPCR) and recently developed specific primers which target the 16S rRNA gene to explore the abundance and distribution of three families of BALO belonging to the…

Diversity and structure of sparids external microbiota (Teleostei) and its link with monogenean ectoparasites

Mathilde Scheifler; Sophie Sanchez-Brosseau; Elodie Magnanou dkk.

Animal Microbiome, Vol. 4 No. 1 · 2022 · Inggris · DOAJ Scopus

Abstract Background Animal-associated microbial communities appear to be key factors in host physiology, ecology, evolution and its interactions with the surrounding environment. Teleost fish have received relatively little attention in the study of surface-associated microbiota. Besides the…

Host-microbiota-parasite interactions in two wild sparid fish species, Diplodus annularis and Oblada melanura (Teleostei, Sparidae) over a year: a pilot study

Mathilde Scheifler; Elodie Magnanou; Sophie Sanchez-Brosseau dkk.

BMC Microbiology, Vol. 23 No. 1 · 2023 · Inggris · DOAJ Scopus

Abstract Background The microbiota in fish external mucus is mainly known for having a role in homeostasis and protection against pathogens, but recent evidence suggests it is also involved in the host-specificity of some ectoparasites. In this study, we investigated the influence of seasonality…

A New Isolate Beauveria bassiana GxABT-1: Efficacy against Myzus persicae and Promising Impact on the Beet Mild Yellow Virus-Aphid Association

Kenza Dessauvages; Mathilde Scheifler; Frédéric Francis dkk.

Insects, Vol. 15 No. 9 · 2024 · Inggris · DOAJ Scopus

Within the context of ecofriendly alternatives to neonicotinoids, we explored the direct and endophytic potential of two Beauveria bassiana isolates, GHA from BotaniGard and the new endemic isolate GxABT-1, against the Sugar Beet Mild Yellow Virus (BMYV)-Myzus persicae pathosystem. A mortality rate…

Low-diversity bacterial microbiota in Southern Ocean representatives of lanternfish genera Electrona , Protomyctophum and Gymnoscopelus (family Myctophidae)

Alison Gallet; Philippe Koubbi; Nelly Léger dkk.

PLOS ONE, Vol. 14 No. 12 · 2019 · Inggris · PLOS Scopus

Myctophids are among the most abundant mesopelagic teleost fishes worldwide. They are dominant in the Southern Ocean, an extreme environment where they are important both as consumers of zooplankton as well as food items for larger predators. Various studies have investigated myctophids diet, but…

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Characterization of ecto- and endoparasite communities of wild Mediterranean teleosts by a metabarcoding approach

Mathilde Scheifler; Magdalena Ruiz-Rodríguez; Sophie Sanchez-Brosseau dkk.

PLOS ONE, Vol. 14 No. 9 · 2019 · Inggris · PLOS Scopus

Next‐generation sequencing methods are increasingly used to identify eukaryotic, unicellular and multicellular symbiont communities within hosts. In this study, we analyzed the non-specific reads obtained during a metabarcoding survey of the bacterial communities associated to three different…

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Many parasitoids lack adult fat accumulation, despite fatty acid synthesis: A discussion of concepts and considerations for future research

Bertanne Visser; Cécile Le Lann; Daniel A. Hahn dkk.

Current Research in Insect Science, Vol. 3 · 2023 · Inggris · DOAJ Scopus

Fat reserves, specifically the accumulation of triacylglycerols, are a major energy source and play a key role for life histories. Fat accumulation is a conserved metabolic pattern across most insects, yet in most parasitoid species adults do not gain fat mass, even when nutrients are readily…