Wild-type (WT) protonemata of the moss Ceratodon purpureus grow upwards in darkness (negative gravitropism), whereas protonemata of the mutant, wrong-way response (wwr-1) grow down. Since Ceratodon ...

Two Arabidopsis thaliana ABC transporter genes linked to auxin transport by various previous results were studied in a reverse-genetic fashion. Mutations in Multidrug Resistance-Like1 (MDR1) reduced ...

Highly developed seed plants evolved deep root systems that are able to sense Earth's gravity. The 'how and when' of this evolutionary step has, until now, remained unknown. Plant biologists have ...

What happens belowground in a corn field is easy to overlook, but corn root architecture can play an important role in water and nutrient acquisition, affecting drought tolerance, water use efficiency ...

Germinating seedlings know which way is up. Perhaps they just know which way is down. They can not see, hear, taste, smell or feel anything like we can. Nonetheless, they know which direction to ...

When a germinating seed is laid on its side, some roots promptly bend earthward, while others turn more slowly. Directed growth of plant roots toward gravity is critical to ensure the availability of ...

Astrounaut Ron Garan watering cucumber seeds in Japanese module of ISS. Scientists have untangled the competing influences of water and gravity on plant roots–by growing cucumbers during spaceflight.

One of the most important events in evolutionary history occurred around 500 million years ago with the spread of plant life from water to land. For plants to thrive in this new environment, root ...