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Horseradish flea beetle: Protected with the weapons of its food plant

 E-Mail IMAGE: The horseradish flea beetle Phyllotreta armoraciae is capable of accumulating large amounts of mustard oil glucosides (glucosinolates) in its body, making itself unpalatable to predators. Glucosinolates are defense substances of. view more  Credit: Anna Schroll When horseradish flea beetles feed on their host plants, they take up not only nutrients but also mustard oil glucosides, the characteristic defense compounds of horseradish and other brassicaceous plants. Using these mustard oil glucosides, the beetles turn themselves into a mustard oil bomb and so deter predators. A team of researchers from the Max Planck Institute for Chemical Ecology in Jena, Germany, has now been able to demonstrate how the beetle regulates the accumulation of mustard oil glucosides in its body. The beetles have special transporters in the excretory system that prevent the excretion of mustard oil glucosides. This mechanism enables the horseradish flea beetle to accumulate h

A beetle s Achilles heel

Credit: Julian Kiefer, Johannes Gutenberg-Universität Mainz Saw-toothed grain beetles live in a symbiotic association with bacteria. Their bacterial partners provide important building blocks for the formation of the insect s exoskeleton, which protects the beetles from their enemies as well as from desiccation. In a new study, a team of scientists from the Johannes Gutenberg University in Mainz, the Max Planck Institute for Chemical Ecology in Jena, and the National Institute of Advanced Industrial Science and Technology in Japan demonstrates that glyphosate inhibits the symbiotic bacteria of the grain beetle. Beetles exposed to the weedkiller no longer receive the building blocks they need from the bacteria. The study shows that glyphosate has the potential to harm insects indirectly by targeting their bacterial partners and thus to contribute to their decline (

Pheronym Closes First Seed Round Led by Sacramento Angels

Citrus orchard Funding caps off year of major milestones for the company’s patented Nematode Pheromone Crop Biocontrol DAVIS, CA, UNITED STATES, May 11, 2021 /EINPresswire.com/ Pheronym, a bio-agtech pest management company, has announced it has closed $242,000 in seed funding led by the Sacramento Angels. Other funders in the oversubscribed round included regional business leaders, agtech industry leaders and growers, including Dr. Pam Marrone, Monte Bottens and Mark Haney. Since 2017, the company has secured nearly $900,000 in grants. The company also received $250,000 of funding as part of IndieBio’s Cohort 5 as well as recently receiving $75,000 from Thrive Accelerator, bringing their total grant and venture investment funding to nearly $1.5 million.

Neue Studie: Glyphosat schadet Insekten nachweislich

Neue Studie: Glyphosat schadet Insekten nachweislich
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