How leaves talk to roots

New findings show that a micro RNA from the shoot keeps legume roots susceptible to symbiotic infection by downregulating a gene that would otherwise hinder root responses to symbiotic bacteria. These findings reveal what ...

Potential treatments for citrus greening

Over the course of 40 years, biologist Sharon Long has become an expert in symbiotic bacteria that help alfalfa grow. She has published over 150 papers on this one topic but when she realized her lab's decades of highly focused ...

Origin of a complex life form revealed

Researchers from McGill University have revealed the steps by which two very distinct organisms—bacteria and carpenter ants—have come to depend on one another for survival to become a single complex life form. The study, ...

How nutrients are removed in oxygen-depleted regions of the ocean

In the course of global climate change, scientists are observing the increase of low-oxygen areas in the ocean, also termed oxygen minimum zones (OMZs). Large-scale OMZs exist, for example, in the Pacific off the coast of ...

Evolution of a species also involves the bacteria it carries

Animals live in close association with microorganisms, carrying beneficial bacteria while coping with pathogenic infections. Now, in a study published this week in PLoS Genetics, researchers from Instituto Gulbenkian de Ciência ...

2,000-year-old mystery of a havoc-wreaking worm

Humans have known for over 2,000 years that shipworms, a worm-like mollusk, are responsible for damage to wooden boats, docks, dikes and piers. Yet new research from the University of Massachusetts Amherst published in Frontiers ...

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