91制片厂

As climate change brings higher and more volatile temperatures and increases the risk of diseases spreading to areas where they have not traditionally impacted, many organisms must quickly adapt to survive. Fortunately, they have help from their tiny ecosystem partners鈥�. 91制片厂 scientists are leading research into how synthetic, engineered microbiomes could help plants adapt faster and better to changing environmental conditions.

Plant microbiomes, including bacteria, fungi, and viruses that live in and around plants, can reduce infections, improve stress tolerance, and . , an assistant professor of cellular, molecular, and biomedical sciences with 91制片厂鈥檚 (COLSA), is part of an emerging field focusing on synthetic microbiomes鈥攅ngineered microbial communities designed to replicate or enhance natural microbiome functions. These synthetic microbiomes could significantly improve the climate resilience of plants.

鈥淭raditional agricultural breeding in crops and livestock has demonstrated the utility of purposefully harnessing evolution for organism change,鈥� said O鈥橞rien. 鈥淵et some species may not have enough genetic variation for traits we want to improve.鈥�

Since plant microbiomes harbor significant diversity, altering the microbiome can significantly influence plant traits, she added.

鈥淲e want to explore which selection methods help us leverage the evolutionary and metabolic power of microbiomes to create products containing more beneficial microbes (also known as microbial inoculants) for crops and other plants,鈥� said O鈥橞rien.

O鈥橞rien, along with COLSA graduate student Ciana Lazu, is testing synthetic microbiome breeding methods on , an aquatic plant species that is particularly useful in research. The team is particularly interested in whether the benefits of synthetic microbiomes will continue at elevated temperatures, a condition that will likely become more common as climate change progresses.

O鈥橞rien and Lazu theorize that building synthetic microbiomes out of microbes sourced from plants in the same evolutionary family as duckweed could increase the chance of a beneficial response. Incorporating new microbes is not without risks, as introducing unfamiliar microbes can sometimes harm the host or disrupt its native microbiome. To address this, the researchers are testing microbes collected from duckweed鈥攁long with closely related plants, like , and distantly related plants, like 鈥攁ll found at Mill Pond in Durham, NH. They aim to evolve, or 鈥渂reed鈥�, microbial inoculants that will reliably enhance growth and adaptation in duckweed.

The researchers also theorize that adding some microbes from closely related hosts could increase the variation within the microbiome, producing a stronger response to breeder selection鈥攁nd leading to better inoculant products. This approach, O鈥橞rien said, could create more effective synthetic microbiomes that help plants like duckweed better tolerate the stresses associated with climate change.

Ultimately, this research aims to determine the best methods for breeding microbial inoculants that alter plant and even animal microbiomes, helping crops and other species adapt to rapidly changing environments. Duckweed, with its fast reproductive cycle, is ideal for studying these effects, but the implications could extend to other species as well.

鈥淭here鈥檚 a gap in the research about using evolutionary history as a predictor for microbiome breeding and to better understand how we can benefit from plants鈥� microbiomes,鈥� said Lazu.

Beyond its utility as a 鈥渟tand-in鈥� for other plants, duckweed itself has broader environmental benefits. It efficiently absorbs nutrients and chemicals from its surroundings, making it an ideal candidate for bioremediation鈥攖he process by which plants clean soil and water. Another focus of O鈥橞rien鈥檚 lab and part of her research is understanding how duckweed could serve as a sustainable alternative to chemical fertilizers, acting as 鈥済reen manure鈥� by absorbing runoff nutrients and fertilizer, which can then be harvested and reapplied to farms.

鈥淒uckweed is a local, untapped resource that holds potential to benefit New Hampshire鈥檚 environmental and agricultural health,鈥� Lazu added. 鈥淭hrough further study of duckweed and its microbiome, we can uncover ways to help everyday New Englanders.鈥�

This project is supported by the , BIO-MCB, Award #2300059.