HomeScienceBoosting Crop Yields and...

Boosting Crop Yields and Strengthening Plant Vigor

Tomato Plant Growth Art

Research reveals that treating seedlings with ethylene in darkness, followed by light exposure, enhances their growth and stress tolerance. This method, first observed in Arabidopsis thaliana, also applies to crops like tomatoes, cucumbers, and wheat. Credit: SciTechDaily.com

Treating seedlings with ethylene in the dark, followed by light, enhances growth and stress resistance in plants, presenting a significant advancement in agricultural practices.

Exposing seedlings to ethylene in darkness can significantly enhance their size and vigor, a discovery with far-reaching implications for agriculture. For thousands of years, farmers have endeavored to boost crop yields, a mission that remains critical as the global population grows. However, increased yields often lead to decreased stress tolerance in plants.

Study Insights and Methodology

Brad Binder and his team sought to increase plant yield without compromising resilience by employing ethylene, a gaseous plant growth hormone. Prior studies showed that seedlings grown in darkness and treated with ethylene exhibited stunted growth and a distinct hooked shape. However, the team discovered that seedlings treated with ethylene in the dark for several days and then exposed to light (while ceasing ethylene treatment) performed better than control groups. These seedlings demonstrated enhanced root growth, denser lateral roots, and increased fresh weight of aerial tissues. This phenomenon was initially observed in Arabidopsis thaliana, a mustard relative used as a model plant, and later in tomatoes, cucumbers, and wheat.

Ethylene Enhances the Growth of Tomato

Ethylene enhances the growth of tomato (Solanum lycopersicum, cultivar Floridade). Credit: Brenya et al.

Additional Findings and Conclusions

Adding sugars to the treatment given in the dark amplified the effect, suggesting that the ethylene treatment helps the plant ramp up its metabolism in preparation for emergence from the soil into the sunlight. A metabolomics analysis and RNA sequencing analyses corroborated this theory. In addition, experiments showed that plants treated with ethylene during darkness were more tolerant of extreme heat, salty soil, and low oxygen levels than controls. The results suggest that ethylene treatments could help improve yields across a range of crops without sacrificing stress tolerance, a significant advancement for agriculture.

For more on this discovery, see How a Whiff of an Unusual Chemical Transforms Seedlings Into Super Plants.

Reference: “Ethylene-mediated metabolic priming increases photosynthesis and metabolism to enhance plant growth and stress tolerance” by Eric Brenya, Esha Dutta, Brittani Herron, Lauren H Walden, Daniel M Roberts and Brad M Binder, 18 July 2023, PNAS Nexus.
DOI: 10.1093/pnasnexus/pgad216

- A word from our sponsors -

Most Popular

LEAVE A REPLY

Please enter your comment!
Please enter your name here

More from Author

Unprecedented Hard Drive Storage Density Unlocked

A new HDD technology involving three-dimensional magnetic recording could enhance storage...

A New Study Shakes Up Ecological Theories

Nanuqsaurus, standing in the background, and pachyrhinosaurus, skull in the foreground,...

How VIPER’s High-Tech Mast Is Transforming Lunar Missions

An artist’s concept of the completed design of NASA’s Volatiles Investigating...

New Research Suggests That Cutting Exposure to Common Chemicals Could Slow Aging

Researchers at Nagoya University have linked aldehydes, byproducts from alcohol, pollution,...

- A word from our sponsors -

Read Now

Unprecedented Hard Drive Storage Density Unlocked

A new HDD technology involving three-dimensional magnetic recording could enhance storage capacities and reduce the number of HDDs needed, promising future cost and energy efficiencies. Credit: SciTechDaily.comPossibility of ultra-high density hard disk drives with areal densities exceeding 10 Tbit/in² using multi-level magnetic recording.Research groups from NIMS, Seagate...

A New Study Shakes Up Ecological Theories

Nanuqsaurus, standing in the background, and pachyrhinosaurus, skull in the foreground, were among the dinosaur species included in a new study led by scientists at the University of Alaska Fairbanks and the University of Reading that calls into question Bergmann’s rule. Credit: James HavensWhen you throw dinosaurs...

How VIPER’s High-Tech Mast Is Transforming Lunar Missions

An artist’s concept of the completed design of NASA’s Volatiles Investigating Polar Exploration Rover, or VIPER. VIPER will get a close-up view of the location and concentration of ice and other resources at the Moon’s South Pole, bringing us a significant step closer to NASA’s ultimate goal...