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#microbes

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🦠#Microbes are in a constant battle for survival! Researchers from @LeibnizHKI @unijena @microverse_exc @unibayreuth discovered how the plant pathogen Pseudomonas syringae uses a chemical radar to detect and eliminate predatory #amoebae .The #bacteria produce harmless molecules that the amoebae modify, revealing their presence. P. syringae detects this and produces toxic substances to eliminate the predator. This mechanism could inspire new drugs and pest control strategies! 💊 @dfg_public #EFRE

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These microbes are far from typical, having genes that are adapted to extreme cold, scarce nutrients and oscillation between intense sunlight in summer and snow-covered darkness of winter.

Some Tibetan glaciers contain microorganisms that can produce antibiotics.

#glaciers
#microbes

Pink snow tints the edges of Antarctica english.elpais.com/science-tec

"The #algae that covers Mount Reina Sofía in patches is Sanguina nivaloides, a species first described in 2019. The meaning of its scientific name in Latin is eloquent: blood in the snow. Each creature has a single cell, about 20 thousandths of a millimeter in size, with a molecule inside that gives it its characteristic red color: #astaxanthin... the same pigment that produces the color of salmon"

Ancient marine organism's dual-layer structure reveals both past and present ocean environments phys.org/news/2025-02-ancient-

A cosmopolitan calcifying benthic #foraminifera in agglutinated disguise as a geochemical recorder of coastal environments pnas.org/doi/10.1073/pnas.2413

"This species has a remarkable hidden feature—an inner shell made of calcium carbonate beneath its outer layer of gathered particles... [this] made them an excellent recorder of environmental conditions."

Earth's Underworld Is Full of Life sciencealert.com/earths-underw

A global comparison of surface and subsurface microbiomes reveals large-scale biodiversity gradients, and a marine-terrestrial divide science.org/doi/10.1126/sciadv

"In an ambitious 8-year census, a team has found an astonishing diversity of #microbes living beneath our planet's surface, deeper than anything we've discovered prior... it has turned up lifeforms as deep as 491m below the ocean floor, and even further below land: 4,375m deep"

Mapping #Antarctica's hidden ice-free lands: A blueprint for conservation phys.org/news/2025-01-antarcti paper: nature.com/articles/s41597-025

"The ice-free lands are home to uniquely adapted flora including micro-forests of #lichens, #moss, and two flowering plants, Antarctic hairgrass and pearlwort. They also sustain a variety of #mites, #springtails, #tardigrades, #nematodes, #algae, and #microbes. #Seabirds have established breeding colonies in these areas too."

How tiny algae shaped the #evolution of giant clams phys.org/news/2025-01-tiny-alg nature.com/articles/s42003-024

"T. maxima have evolved more genes for sensors to distinguish friendly #algae from harmful #bacteria, #viruses... it has tuned down some of its immune genes in a way that likely helps the #animals tolerate #microbes... As a result of the weakened #ImmuneSystem, its genome contains a large number of #TransposableElements left behind by viruses. These aspects highlight the tradeoffs of #symbiosis"