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NASA’s Plant Science is Rooted in Earth and Shoots for the Stars

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Thursday, May 11, 2023

NASA supports USDA plant science research that benefits life on our home planet and beyond! This image shows the USDA Biotechnology Lab at EPCOT, located within Walt Disney World Resort. The two illuminated white squares stacked one over the other above the Biotechnology Lab sign are plant growing chambers developed by NASA’s Biological and Physical Sciences Division at Kennedy Space Center. (Credit: Mark Sperry/USDA Agricultural Research Service) Since December 2019, NASA’s Biological and Physical Sciences Division (BPS) has partnered with the USDA on joint plant research for the USDA’s Biotechnology Lab. At the lab, horticulturalists study and propagate a range of horticultural crops and under this partnership, BPS-sponsored scientists at NASA’s Kennedy Space Center in Florida work to achieve faster growth and better, increased yields for diverse plant varieties. The key to this process? Microbes. Microbial Magic at Work in Plants The thought of microbes might conjure images of harmful mold or call to mind illness-causing viruses and bacteria. But certain microbes can actually benefit both human and plant health. With this project, scientists study plant-microbial interactions to determine which kinds of microbes enhance plant growth. And they’ve discovered one, the fungus Cladosporium sphaerospermum. “We have a group here at Kennedy that tests what crops can be grown in spaceflight, based on factors including nutritional quality and overall biomass,” said Dr. Anirudha R. Dixit, one of the research scientists contracted at NASA’s Kennedy Space Center to conduct research under this partnership. “The focus of this research is to test the growth promotion abilities of this particular fungus on some of these crops to see if exposure to gases produced by the fungus could help increase their total biomass.” USDA and NASA researchers worked together to sequence this fuzzy, powdery black fungus (dubbed ‘Black Magic’) for the first time, allowing them to monitor the genetic changes as it grows and develops. They’ve found that this specific strain does in fact help promote the growth of plants growing nearby and they suspect that these positive effects are due to volatile organic compounds produced by the fungus. Environmental Test Chambers (ETCs) developed through BPS funding could help confirm whether this theory is correct. Versions of the plant growing chambers tested at Kennedy Space Center for use at the USDA Biotechnology Lab. (Credit: NASA Kennedy Space Center) This image shows two plant growing chambers at the USDA Biotechnology Lab. The chambers were developed by NASA’s Biological and Physical Sciences Division at Kennedy Space Center. (Credit: Mark Sperry/USDA Agricultural Research Service) In addition to conducting fundamental research on microbes as well as plant growth and development testing, BPS’s other major role in this partnership was to design and build growth chambers specifically for these studies. The USDA Biotechnology Lab is located at Walt Disney World’s EPCOT theme park and is visible to visitors who embark on the Living with the Land attraction, a boat ride that tells the history of farming and gives a glimpse into the varied research conducted at the lab. In December 2022, two chambers were delivered to the lab at EPCOT. Like those on the ground at Kennedy and similar to the Advanced Plant Habitat and Veggie on the International Space Station, the chambers provide USDA researchers with more active control for growth conditions including temperature, humidity, carbon dioxide (CO2) and lighting. The chambers also provide a more closed atmosphere that enables scientists to examine synergistic effects between microbes and plants. “With these chambers, we’re able to continue studying if these volatile compounds are indeed the cause of these growth promotion effects on the plants or if these effects are caused by the amount of CO2 that the fungus produces,” said Ray Wheeler, plant physiologist at NASA’s Kennedy Space Center. “If there are volatile compounds, we want to identify what they might be, why they benefit plant growth and the mechanisms behind this.” Plant growing chambers visible at the USDA Biotechnology Lab. (Credit: Mark Sperry/USDA Agricultural Research Service) Scientists at Kennedy have primarily conducted these microbial studies in lettuce and mizuna (a mild-tasting Brassica in the mustard family). These leafy greens were chosen for this research because they grow quickly, which allows scientists to harvest them sooner than they could other plant varieties and therefore repeat experiments more quickly. Stellar Applications on Our Home Planet and Beyond Research conducted under this cross-agency collaboration has potential benefits both in space and on our home planet. “The original objective of this project was to figure out how to increase overall crop productivity in order to benefit terrestrial agriculture,” said Dixit. “We can also apply these methods in the spaceflight environment to maximize the overall productivity of plants grown in the limited space we have aboard spacecraft.” NASA astronaut Jessica Meir harvests leaves from Mizuna mustard greens for analysis and consumption during the Veg-04 experiment, part of a phased research project to address the need for fresh food production in space. Credits: NASA Developing new methods to increase plant yield may not only allow for a greater variety of plants to be grown and eaten in space, as has been done with Veggie experiments on the International Space Station, but these advancements could also contribute to more efficient and productive agricultural methods on Earth. In addition, the joint USDA/NASA plant research could have applications for commercial technologies that support sustainable farming on Earth. “If there’s a way to co-utilize these microbes or fungi where you deliberately inoculate them into the growing media of plants, it could potentially speed up the growth and produce better yields or quicker yields,” said Wheeler. “If we can clearly demonstrate this on the ground, then it would be nice to do a follow-up test in space to see if the same thing occurs in microgravity.” Researchers are working to expand the plant varieties investigated under this partnership to crops including tomatoes. In the future, scientists also aim to test this ground research in space, bringing the microbial magic to the cosmos. Learn more about NASA’s Plant Biology Program Related EFRI ELiS: Bioweathering Dynamics and Ecophysiology of Microbially Catalyzed Soil Genesis of Martian Regolith Dynamics of Microbiomes in Space (DynaMoS) Surviving Space: Extreme Plant Adaptation News Article Type: Homepage ArticlesPublished: Thursday, May 11, 2023 - 09:53

NASA supports USDA plant science research that benefits life on our home planet and beyond!

This image shows a teal and yellow sign that says “Biotechnology Lab In cooperation with USDA Agricultural Research Service.” To the right of the sign are several potted plants, and behind it are windows that give a glimpse into the inside of the lab. This includes two illuminated white squares stacked one over the other, which are plant growing chambers developed by NASA’s Biological and Physical Sciences Division at Kennedy Space Center.

This image shows the USDA Biotechnology Lab at EPCOT, located within Walt Disney World Resort. The two illuminated white squares stacked one over the other above the Biotechnology Lab sign are plant growing chambers developed by NASA’s Biological and Physical Sciences Division at Kennedy Space Center. (Credit: Mark Sperry/USDA Agricultural Research Service)

Since December 2019, NASA’s Biological and Physical Sciences Division (BPS) has partnered with the USDA on joint plant research for the USDA’s Biotechnology Lab. At the lab, horticulturalists study and propagate a range of horticultural crops and under this partnership, BPS-sponsored scientists at NASA’s Kennedy Space Center in Florida work to achieve faster growth and better, increased yields for diverse plant varieties.

The key to this process? Microbes.

Microbial Magic at Work in Plants

The thought of microbes might conjure images of harmful mold or call to mind illness-causing viruses and bacteria. But certain microbes can actually benefit both human and plant health. With this project, scientists study plant-microbial interactions to determine which kinds of microbes enhance plant growth. And they’ve discovered one, the fungus Cladosporium sphaerospermum.

“We have a group here at Kennedy that tests what crops can be grown in spaceflight, based on factors including nutritional quality and overall biomass,” said Dr. Anirudha R. Dixit, one of the research scientists contracted at NASA’s Kennedy Space Center to conduct research under this partnership. “The focus of this research is to test the growth promotion abilities of this particular fungus on some of these crops to see if exposure to gases produced by the fungus could help increase their total biomass.”

USDA and NASA researchers worked together to sequence this fuzzy, powdery black fungus (dubbed ‘Black Magic’) for the first time, allowing them to monitor the genetic changes as it grows and develops. They’ve found that this specific strain does in fact help promote the growth of plants growing nearby and they suspect that these positive effects are due to volatile organic compounds produced by the fungus.

Environmental Test Chambers (ETCs) developed through BPS funding could help confirm whether this theory is correct.

This image shows several rectangular boxes with green plants growing inside them and wires and other hardware surrounding and feeding into them.

Versions of the plant growing chambers tested at Kennedy Space Center for use at the USDA Biotechnology Lab. (Credit: NASA Kennedy Space Center)

This image shows windows that give a glimpse into the inside of the USDA Biotechnology Lab. This includes two illuminated white squares stacked one over the other, which are plant growing chambers developed by NASA’s Biological and Physical Sciences Division at Kennedy Space Center. Tomato plants are growing inside the chambers.

This image shows two plant growing chambers at the USDA Biotechnology Lab. The chambers were developed by NASA’s Biological and Physical Sciences Division at Kennedy Space Center. (Credit: Mark Sperry/USDA Agricultural Research Service)

In addition to conducting fundamental research on microbes as well as plant growth and development testing, BPS’s other major role in this partnership was to design and build growth chambers specifically for these studies.

The USDA Biotechnology Lab is located at Walt Disney World’s EPCOT theme park and is visible to visitors who embark on the Living with the Land attraction, a boat ride that tells the history of farming and gives a glimpse into the varied research conducted at the lab. In December 2022, two chambers were delivered to the lab at EPCOT. Like those on the ground at Kennedy and similar to the Advanced Plant Habitat and Veggie on the International Space Station, the chambers provide USDA researchers with more active control for growth conditions including temperature, humidity, carbon dioxide (CO2) and lighting. The chambers also provide a more closed atmosphere that enables scientists to examine synergistic effects between microbes and plants.

“With these chambers, we’re able to continue studying if these volatile compounds are indeed the cause of these growth promotion effects on the plants or if these effects are caused by the amount of CO2 that the fungus produces,” said Ray Wheeler, plant physiologist at NASA’s Kennedy Space Center. “If there are volatile compounds, we want to identify what they might be, why they benefit plant growth and the mechanisms behind this.”

In this image, a sign to the left reads “BIOTECHNOLOGY LAB for Crop Improvement Co-sponsored by USDA-ARS.” To the right are windows that are illuminated by a magenta light and show two illuminated white squares stacked one over the other, which are plant growing chambers developed by NASA’s Biological and Physical Sciences Division at Kennedy Space Center. At the top of the image is a screen depicting scientists at work.

Plant growing chambers visible at the USDA Biotechnology Lab. (Credit: Mark Sperry/USDA Agricultural Research Service)

Scientists at Kennedy have primarily conducted these microbial studies in lettuce and mizuna (a mild-tasting Brassica in the mustard family). These leafy greens were chosen for this research because they grow quickly, which allows scientists to harvest them sooner than they could other plant varieties and therefore repeat experiments more quickly.

Stellar Applications on Our Home Planet and Beyond

Research conducted under this cross-agency collaboration has potential benefits both in space and on our home planet.

“The original objective of this project was to figure out how to increase overall crop productivity in order to benefit terrestrial agriculture,” said Dixit. “We can also apply these methods in the spaceflight environment to maximize the overall productivity of plants grown in the limited space we have aboard spacecraft.”

Wearing a blue shirt and blue gloves, NASA astronaut Jessica Meir harvests leaves from Mizuna mustard greens. The plant is growing inside the Vegetable Production System (Veggie), a square-shaped plant growth research facility aboard the International Space Station that is illuminated by a magenta light.

NASA astronaut Jessica Meir harvests leaves from Mizuna mustard greens for analysis and consumption during the Veg-04 experiment, part of a phased research project to address the need for fresh food production in space. Credits: NASA

Developing new methods to increase plant yield may not only allow for a greater variety of plants to be grown and eaten in space, as has been done with Veggie experiments on the International Space Station, but these advancements could also contribute to more efficient and productive agricultural methods on Earth. In addition, the joint USDA/NASA plant research could have applications for commercial technologies that support sustainable farming on Earth.

“If there’s a way to co-utilize these microbes or fungi where you deliberately inoculate them into the growing media of plants, it could potentially speed up the growth and produce better yields or quicker yields,” said Wheeler. “If we can clearly demonstrate this on the ground, then it would be nice to do a follow-up test in space to see if the same thing occurs in microgravity.”

Researchers are working to expand the plant varieties investigated under this partnership to crops including tomatoes. In the future, scientists also aim to test this ground research in space, bringing the microbial magic to the cosmos.

Learn more about NASA’s Plant Biology Program

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Homepage Articles

Published:

Thursday, May 11, 2023 - 09:53

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