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2024-04-12T22:32:00.0000000Z
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Scientists discover first nitrogen-fixing organelle

Science
UNIVERSITY OF CALIFORNIA - SANTA CRUZ

Modern biology textbooks assert that only bacteria can take nitrogen from the atmosphere and convert it into a form that is usable for life. Plants that fix nitrogen, such as legumes, do so by harboring symbiotic bacteria in root nodules. But a recent discovery upends that rule. 

In two recent papers, an international team of scientists describe the first known nitrogen-fixing organelle within a eukaryotic cell. The organelle is the fourth example in history of primary endosymbiosis — the process by which a prokaryotic cell is engulfed by a eukaryotic cell and evolves beyond symbiosis into an organelle.

Read on: https://www.eurekalert.org/news-releases/1041019

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