Wednesday, January 22, 2025

Prochlorococcus’ cross-feeding at night affects the ocean’s carbon cycle

It feeds a global network of marine microbes.

MIT researchers have discovered a new ocean-regulating role of Prochlorococcus: they release DNA building blocks into the water, which are then “cross-fed” to other ocean microbes. These compounds serve as nutrients or help regulate metabolism in organisms like SAR11, the ocean’s most abundant bacteria. Prochlorococcus regularly releases these byproducts, particularly at night, benefiting surrounding microbes.

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early agn

Early universe had more supermassive black holes than previously thought

Most distant and therefore oldest blazar ever seen.
Science
worm C. elegans

How electrical synapses fine-tune sensory information for better decisions?

A configuration of electrical synapses.