Sending algae into space to probe plants in extreme environments

It may sound like the opening scene in a low-budget science fiction movie: Scientists send algae into space—some of it mutant—to see if it will grow. But an Agricultural Research Service scientist and an international ...

Roots to shoots: Hormone transport in plants deciphered

Plant growth is orchestrated by a spectrum of signals from hormones within a plant. A major group of plant hormones called cytokinins originate in the roots of plants, and their journey to growth areas on the stem and in ...

Hormone transport in plants deciphered

(Phys.org) —Plant growth is orchestrated by a spectrum of signals from hormones within a plant. A major group of plant hormones called cytokinins originate in the roots of plants, and their journey to growth areas on the ...

Negative feedback makes cells 'sensitive'

New research has shown that negative feedback loops in cell signalling systems can be essential for a cell's ability to perceive the strength of a growth stimulus. Cells lacking the feedback loop became insensitive to the ...

Inheritance of lifespan is sex-dependent in fruit flies

Like mother, like daughter; like father, like son. Evolutionary biologists at the universities in Bielefeld and Uppsala (Sweden) have now shown that this proverb also applies to inheriting a long life – at least for fruit ...

page 13 from 21