Temperature-sensing plant molecule could help breed food crops optimized for changing climate

earth
Small farms account for close to half of all U.S. farms, but they produce less than 10 percent of total output.

In a paper published in Nature Communications, a group of cell biologists …. reveal the phytochrome B molecule has unexpected dynamics activated by temperature, and behaves differently depending on the temperature and type of light.

As climate change warms the world, crop growth patterns and flowering times will change. A better understanding of how phytochromes regulate the seasonal rhythms of plant growth will help scientists develop crops for optimal growth under the Earth’s new climate ….

Phytochromes switch between active and inactive forms like a binary switch controlled by light and temperature. In direct sunlight, such as in open fields, phytochromes switch “on,” absorbing far-red light. This active form inhibits stem elongation, which limits how tall plants in direct sunlight can grow.

Related article:  Salt tolerant plants are on the horizon – and critical to address the looming crisis of a shortage of arable farm land

ADVERTISEMENT

The team found increasing the temperature did not cause all the photobodies to disappear at once. Instead, specific photobodies disappeared in specific ranges of temperature. Increasing the temperature incrementally reduced the number of photobodies as they disappeared selectively.

The mechanism that makes them disappear selectively must be different from the mechanism that makes them disappear in shade. This suggests individual photobodies could be sensors for specific temperature ranges.

Read the original post

ADVERTISEMENT
ADVERTISEMENT
Outbreak Daily Digest
Biotech Facts & Fallacies
GLP Podcasts
Infographic: Here’s where GM crops are grown around the world today

Infographic: Here’s where GM crops are grown around the world today

Do you know where biotech crops are grown in the world? This updated ISAAA infographics show where biotech crops were ...
News on human & agricultural genetics and biotechnology delivered to your inbox.
glp menu logo outlined

Newsletter Subscription

* indicates required
Email Lists
Send this to a friend