Insects are a component of the diet of different animal species and have been suggested as the major source of human dietary protein for the future. However, insects are also carriers of potentially pathogenic microbes that constitute a risk to food and feed safety. In this study, we reported the occurrence of a hemolytic orange pigmented producing phenotype of in the fecal microbiota of golden lion tamarins () and feed larvae (). Feed insects were identified as a regular source of based on a reanalysis of available 16S rRNA gene libraries. Pan-genome analysis suggested the existence of four clusters within the group. The presence of cluster indicated that some strains of the group produced a pigment similar to granadaene, an orange cytotoxic lipid produced by group B streptococci, including . Pigment production by strains was dependent on the presence of the fermentable sugars, with no pigment being observed at pH <4.7. The addition of buffering compounds or arginine, which can be metabolized to ammonium, restored pigment formation. In addition, pigment formation might be related to the source of peptone. These data suggest that edible insects are a possible source of granadaene-producing lactococci, which can be considered a pathogenic risk with zoonotic potential.
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http://dx.doi.org/10.3389/fmicb.2022.848490 | DOI Listing |
Waste Manag
January 2025
Guangdong Provincial Key Lab of Agro-animal Genomics and Molecular Breeding, College of Animal Science, South China Agricultural University, Guangzhou 510642, China; Guangxi Key Laboratory of Sericulture Ecology and Applied Intelligent Technology/ Guangxi Collaborative Innovation Center of Modern Sericulture and Silk, Hechi University, Hechi 546300, China. Electronic address:
Sericulture waste poses significant challenges to industrial and environmental safety. Black soldier fly larvae (BSFL) offer a promising solution for organic waste management by converting it into insect protein. This study aimed to develop a microbial fermented method for utilizing sericulture waste to feed BSFL and explore the underlying mechanisms.
View Article and Find Full Text PDFPLoS One
January 2025
Department of Entomology, The Pennsylvania State University, University Park, PA, United States of America.
Because the use of synthetic agrochemicals is generally not allowed in organic crop production systems, growers rely on natural substances and processes, such as microbial control, to suppress insect pests. Reduced tillage practices are associated with beneficial soil organisms, such as entomopathogenic fungi, that can contribute to the natural control of insect pests. The impacts of management, such as tillage, in a cropping system can affect soil biota in the current season and can also persist over time as legacy effects.
View Article and Find Full Text PDFClear differences exist between the Global South and the Global North with respect to economic development. The majority of small and medium-sized insect production farms are located in Africa, Asia, and Latin America, which face challenges to food production and organic waste management in general. These regions have a long history of insect use, as well as environmental advantages, making production of insects in general - and the black soldier fly in particular - a promising option for sustainable food production and organic waste management.
View Article and Find Full Text PDFDev Comp Immunol
January 2025
Department of Plant Medicals, College of Life Sciences, Andong National University, Andong, 36729, South Korea. Electronic address:
Host cabbage possesses an endophyte, Bacillus subtilis, which induced immune-priming of the diamondback moth, Plutella xylostella. In contrast, larvae raised under axenic conditions lost the chance to feed the bacteria and were highly susceptible to various pathogens. Addition of B.
View Article and Find Full Text PDFJ Invertebr Pathol
January 2025
UK Centre for Ecology & Hydrology, Maclean Building, Benson Lane, Crowmarsh Gifford, Wallingford, Oxfordshire OX10 8BB, United Kingdom. Electronic address:
The insect mass-rearing industry to produce feed and food is expanding rapidly. Insects in production frequently encounter multiple pathogens and environmental stressors simultaneously, which can lead to significant economic losses. Our understanding of the interactions between different stressors remains limited, and existing methods primarily focus on determining overall patterns of additivity, synergism, or antagonism.
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