* . *
  • About
  • Advertise
  • Privacy & Policy
  • Contact
Friday, September 19, 2025
Earth-News
  • Home
  • Business
  • Entertainment
    Congress Bill Spotlight: Make Entertainment Great Again (MEGA) Act, Renaming Kennedy Center to Trump Center – The Fulcrum

    Congress Proposes MEGA Act to Rename Kennedy Center as Trump Center and Revitalize Entertainment

    Massive Attack Say They’ll Remove Music From Spotify – yahoo.com

    Massive Attack Announces Plans to Pull Their Music from Spotify

    REO to return for UI homecoming – The News-Gazette

    REO Gears Up to Ignite the Stage at UI Homecoming Celebration!

    Gen V Season 2: What is The Odessa Project? – yahoo.com

    Gen V Season 2: Unlocking the Secrets of The Odessa Project

    PENN Entertainment stock rating reiterated at Market Outperform by JMP – Investing.com

    PENN Entertainment Stock Rated a Market Outperformer by Experts

    Here’s how NJ’s once-vibrant nightclub scene was born and why it died – Bergen Record

    The Rise and Fall of New Jersey’s Once-Vibrant Nightclub Scene: What Happened?

  • General
  • Health
  • News

    Cracking the Code: Why China’s Economic Challenges Aren’t Shaking Markets, Unlike America’s” – Bloomberg

    Trump’s Narrow Window to Spread the Truth About Harris

    Trump’s Narrow Window to Spread the Truth About Harris

    Israel-Gaza war live updates: Hamas leader Ismail Haniyeh assassinated in Iran, group says

    Israel-Gaza war live updates: Hamas leader Ismail Haniyeh assassinated in Iran, group says

    PAP Boss to Niger Delta Youths, Stay Away from the Protest

    PAP Boss to Niger Delta Youths, Stay Away from the Protest

    Court Restricts Protests In Lagos To Freedom, Peace Park

    Court Restricts Protests In Lagos To Freedom, Peace Park

    Fans React to Jazz Jennings’ Inspiring Weight Loss Journey

    Fans React to Jazz Jennings’ Inspiring Weight Loss Journey

    Trending Tags

    • Trump Inauguration
    • United Stated
    • White House
    • Market Stories
    • Election Results
  • Science
  • Sports
  • Technology
    Huawei Unveils New AI Chip Tech to Challenge Nvidia’s Lead – Bloomberg.com

    Huawei Unveils New AI Chip Tech to Challenge Nvidia’s Lead – Bloomberg.com

    China says US TikTok deal a ‘win-win’, will review app’s technology and IP transfers – Reuters

    China Hails US TikTok Deal as a ‘Win-Win’ While Launching Review of App’s Technology and IP Transfers

    Bucking the Odds: Why Technology Companies Should Embrace Software Patents Today – Crowell & Moring LLP

    Bucking the Odds: Why Technology Companies Should Embrace Software Patents Today – Crowell & Moring LLP

    City IT presented Best of North Carolina Technology Award – RaleighNC.gov

    City IT Honored with Best of North Carolina Technology Award

    LELO Releases 2025 Futurist Report: Intergenerational Views on Relationships, Sex, and Technology – PR Newswire

    Exploring the Future: How Different Generations View Relationships, Sex, and Technology in 2025

    Will New Big Technology Engagements Reshape Innodata’s Growth Path? – Yahoo Finance

    Could New Major Tech Partnerships Propel Innodata to Unprecedented Growth?

    Trending Tags

    • Nintendo Switch
    • CES 2017
    • Playstation 4 Pro
    • Mark Zuckerberg
No Result
View All Result
  • Home
  • Business
  • Entertainment
    Congress Bill Spotlight: Make Entertainment Great Again (MEGA) Act, Renaming Kennedy Center to Trump Center – The Fulcrum

    Congress Proposes MEGA Act to Rename Kennedy Center as Trump Center and Revitalize Entertainment

    Massive Attack Say They’ll Remove Music From Spotify – yahoo.com

    Massive Attack Announces Plans to Pull Their Music from Spotify

    REO to return for UI homecoming – The News-Gazette

    REO Gears Up to Ignite the Stage at UI Homecoming Celebration!

    Gen V Season 2: What is The Odessa Project? – yahoo.com

    Gen V Season 2: Unlocking the Secrets of The Odessa Project

    PENN Entertainment stock rating reiterated at Market Outperform by JMP – Investing.com

    PENN Entertainment Stock Rated a Market Outperformer by Experts

    Here’s how NJ’s once-vibrant nightclub scene was born and why it died – Bergen Record

    The Rise and Fall of New Jersey’s Once-Vibrant Nightclub Scene: What Happened?

  • General
  • Health
  • News

    Cracking the Code: Why China’s Economic Challenges Aren’t Shaking Markets, Unlike America’s” – Bloomberg

    Trump’s Narrow Window to Spread the Truth About Harris

    Trump’s Narrow Window to Spread the Truth About Harris

    Israel-Gaza war live updates: Hamas leader Ismail Haniyeh assassinated in Iran, group says

    Israel-Gaza war live updates: Hamas leader Ismail Haniyeh assassinated in Iran, group says

    PAP Boss to Niger Delta Youths, Stay Away from the Protest

    PAP Boss to Niger Delta Youths, Stay Away from the Protest

    Court Restricts Protests In Lagos To Freedom, Peace Park

    Court Restricts Protests In Lagos To Freedom, Peace Park

    Fans React to Jazz Jennings’ Inspiring Weight Loss Journey

    Fans React to Jazz Jennings’ Inspiring Weight Loss Journey

    Trending Tags

    • Trump Inauguration
    • United Stated
    • White House
    • Market Stories
    • Election Results
  • Science
  • Sports
  • Technology
    Huawei Unveils New AI Chip Tech to Challenge Nvidia’s Lead – Bloomberg.com

    Huawei Unveils New AI Chip Tech to Challenge Nvidia’s Lead – Bloomberg.com

    China says US TikTok deal a ‘win-win’, will review app’s technology and IP transfers – Reuters

    China Hails US TikTok Deal as a ‘Win-Win’ While Launching Review of App’s Technology and IP Transfers

    Bucking the Odds: Why Technology Companies Should Embrace Software Patents Today – Crowell & Moring LLP

    Bucking the Odds: Why Technology Companies Should Embrace Software Patents Today – Crowell & Moring LLP

    City IT presented Best of North Carolina Technology Award – RaleighNC.gov

    City IT Honored with Best of North Carolina Technology Award

    LELO Releases 2025 Futurist Report: Intergenerational Views on Relationships, Sex, and Technology – PR Newswire

    Exploring the Future: How Different Generations View Relationships, Sex, and Technology in 2025

    Will New Big Technology Engagements Reshape Innodata’s Growth Path? – Yahoo Finance

    Could New Major Tech Partnerships Propel Innodata to Unprecedented Growth?

    Trending Tags

    • Nintendo Switch
    • CES 2017
    • Playstation 4 Pro
    • Mark Zuckerberg
No Result
View All Result
Earth-News
No Result
View All Result
Home Science

To grow their roots, plants feel gravity

May 18, 2024
in Science
To grow their roots, plants feel gravity
Share on FacebookShare on Twitter

Plants depend on Earth’s gravitational pull to direct their growth, react to environmental stimuli, and stay anchored in the soil. However, the exact chemical process behind this ability remains unclear.

In a new study, Anastasia Teplova from the Friml group at the Institute of Science and Technology Austria (ISTA) investigates the mechanism behind this process. She and the team found that using the force of gravity, roots weave their way through the soil to provide a plant with both structural support and essential nutrients.

Taking a square Petri dish off her lab bench, Anastasia Teplova brings it to light. Inside, happily growing seedlings of the model organism in biology, the tiny mouse-ear cress (Arabidopsis thaliana, A. thaliana), are embedded in a nutrient-rich media. She picks up another Petri dish and sets the previous one down again.

She said, “Look closely. The seedlings here seem different from the others, don’t they?”

“Their fine roots, which normally grow downward, are directed in the opposite direction. They’re modified and lack three proteins from the protein family called NGR (Negative Gravitropic Response of Roots), which causes this phenomenon. The plant can still survive but has lost its ability to sense gravity.”

Vibrant green shoots of plants are reaching toward the sun to absorb as much light as possible. Beyond our line of sight, another world opens up, one in which roots are indiscernibly growing and perforating the ground. However, how do they manage to do that? “Gravitropism is a fairly intricate and well-regulated process,”

Shoots show negative gravitropism, growing upward against gravity, whereas roots show positive gravitropism, growing downward with the pull of Earth. With the aid of specialized plastids (compartments) known as “amyloplasts,” columella cells at the forefront of the root, sometimes referred to as the root tip, feel gravity in the root.

Teplova continues, “Amyloplasts are filled with starch and are way heavier than their surroundings. In a horizontal root, gravity causes them to accumulate on the lower side of the columella cells. This triggers a signaling cascade that results in an accumulation of the plant hormone auxin on the lower side of the root, causing downward bending of the root. Step by step, this facilitates the root’s gradual descent into the soil to access nutrients and water.”

Gravitropism schematicGravitropism schematic. Due to gravity, amyloplasts (small brown circles) sediment to the lower side (thin green lines) of columella cells (yellow) in the root tip, causing a redistribution of auxin (red) and downward bending of the root. © Anastasia Teplova/ISTA

Gravitropism model has largely stood the test of time. However, a number of aspects of the molecular interaction are still unclear, such as the relationship between auxin dispersion and gravity sensing. Teplova uses her PhD study to try to unravel that riddle.

Teplova goes right to work in the microscope laboratory. She examines the objective of a specially-made microscope and gently rotates the knobs to change the image. Teplova focuses on a mouse-ear cress seedling’s root while positioned on a platform.

Teplova said, “You can place a plant vertically into the microscope and then rotate it in a full 360-degree. We take live movies of the seedlings growing in the microscopy chamber to see how they respond to gravity.”

The proteins found in columella cells—invisible to the human eye—are the primary focus of the scientists’ investigation. They must first have a luminous dye label applied to them. For instance, in a recent paper by Teplova and Co., the researchers labeled NGR (loss of NGR proteins causes chaos in root growth) and then closely examined where it localizes inside cells in response to gravity detection.

“When we rotated the plant, NGR moved to the new bottom side of columella cells, along with the amyloplasts. Similarly, another protein called “D6 protein kinase (D6PK)”, which activates specific proteins that create the auxin flow, follows the same pattern. When testing mouse-ear cress lacking NGR, D6PK no longer relocates. In essence, if one mechanism fails to function, the other is also affected, thus suggesting an interplay between those two.”

The results provide insight into the processes that allow plant roots to change their development direction in reaction to gravity. They offer the missing piece that ties auxin distribution to amyloplast sedimentation. Numerous questions still need to be answered. Determining the interaction between these proteins will be one of the next steps.

Journal Reference:

I. Kulich, J. Schmid, A. Teplova, L. Qi & Jiří Friml. 2024. Rapid translocation of NGR proteins driving polarization of PIN-activating D6 protein kinase during root gravitropism. eLife. DOI: 10.7554/eLife.91523

>>> Read full article>>>
Copyright for syndicated content belongs to the linked Source : Tech Explorist – https://www.techexplorist.com/grow-roots-plants-feel-gravity/83969/#utm_source=rss&utm_medium=rss&utm_campaign=grow-roots-plants-feel-gravity

Tags: plantsrootsscience
Previous Post

‘I was rushed to hospital days before the Britain’s Got Talent final

Next Post

Stirring evolution: How Earth’s ancient sea creatures shaped change

How Taylor Morgan became one of Reno’s most recognizable sports voices – Nevada Sports Net

From Local Roots to Legendary: How Taylor Morgan Became Reno’s Most Recognizable Sports Voice

September 19, 2025
Scientists say they’ve found the world’s oldest mummies, and they’re far from Egypt – NBC News

Scientists say they’ve found the world’s oldest mummies, and they’re far from Egypt – NBC News

September 19, 2025
The growing chasm between MAGA and non-MAGA Republicans on Trump’s economy – Axios

The growing chasm between MAGA and non-MAGA Republicans on Trump’s economy – Axios

September 19, 2025
Congress Bill Spotlight: Make Entertainment Great Again (MEGA) Act, Renaming Kennedy Center to Trump Center – The Fulcrum

Congress Proposes MEGA Act to Rename Kennedy Center as Trump Center and Revitalize Entertainment

September 19, 2025
CHOP researchers unveil framework for boosting children’s oral health – News-Medical

Revolutionary New Framework Set to Transform Children’s Oral Health

September 19, 2025
‘We will not allow politics or outside forces to rewrite the story of Wisconsin’s public schools’: Underly delivers her fifth State of Education Address – Spectrum News

Underly Pledges to Shield Wisconsin’s Public Schools from Political Interference in Impactful Education Speech

September 19, 2025
Simons Collaborations in Ecology and Evolution – Simons Foundation

Innovative Breakthroughs in Ecology and Evolution Through Collaborative Research

September 19, 2025
Michigan Science Center’s vertical wind tunnel demonstration – CBS News

Experience the Thrill of Michigan Science Center’s Vertical Wind Tunnel Demonstration!

September 19, 2025
Roane State and TCAT Knoxville celebrate ‘Countdown to Grand Opening’ for Knox Regional Health Science Education Center – WVLT

Roane State and TCAT Knoxville Kick Off Exciting Countdown to Grand Opening of Knox Regional Health Science Education Center

September 19, 2025
Huawei Unveils New AI Chip Tech to Challenge Nvidia’s Lead – Bloomberg.com

Huawei Unveils New AI Chip Tech to Challenge Nvidia’s Lead – Bloomberg.com

September 19, 2025

Categories

Archives

September 2025
MTWTFSS
1234567
891011121314
15161718192021
22232425262728
2930 
« Aug    
Earth-News.info

The Earth News is an independent English-language daily published Website from all around the World News

Browse by Category

  • Business (20,132)
  • Ecology (826)
  • Economy (846)
  • Entertainment (21,725)
  • General (17,119)
  • Health (9,891)
  • Lifestyle (859)
  • News (22,149)
  • People (850)
  • Politics (856)
  • Science (16,056)
  • Sports (21,346)
  • Technology (15,828)
  • World (830)

Recent News

How Taylor Morgan became one of Reno’s most recognizable sports voices – Nevada Sports Net

From Local Roots to Legendary: How Taylor Morgan Became Reno’s Most Recognizable Sports Voice

September 19, 2025
Scientists say they’ve found the world’s oldest mummies, and they’re far from Egypt – NBC News

Scientists say they’ve found the world’s oldest mummies, and they’re far from Egypt – NBC News

September 19, 2025
  • About
  • Advertise
  • Privacy & Policy
  • Contact

© 2023 earth-news.info

No Result
View All Result

© 2023 earth-news.info

No Result
View All Result

© 2023 earth-news.info

Go to mobile version