* . *
  • About
  • Advertise
  • Privacy & Policy
  • Contact
Tuesday, June 24, 2025
Earth-News
  • Home
  • Business
  • Entertainment
    Netflix unveils Dallas immersive venue for fans of hit shows like ‘Squid Game,’ ‘Stranger Things’ – Houston Chronicle

    Step Inside Netflix’s New Dallas Immersive Experience Featuring Hits Like ‘Squid Game’ and ‘Stranger Things

    ‘Puttin’ on the Ritz’: Civic Players bring ‘Young Frankenstein’ to life – Yahoo

    Civic Players Deliver a Hilarious and Unforgettable Performance of ‘Young Frankenstein

    ‘Wheel of Fortune’: Amputee Wins $60,000 After Breaking Incredible ‘Curse’ – Hastings Tribune

    Wheel of Fortune’ Amputee Breaks Incredible ‘Curse’ to Win $60,000!

    North Star Sports & Entertainment Network: Coming soon – KTTC News

    North Star Sports & Entertainment Network: Coming soon – KTTC News

    Safety concerns in Deep Ellum create apprehension as the entertainment district gains visitors – CBS News

    Safety Concerns Surge Amid Deep Ellum’s Booming Popularity and Growing Crowds

    Elisabeth Moss’ ‘Handmaid’s Tale’ Emmy chances, by the numbers – Yahoo

    Elisabeth Moss’ ‘Handmaid’s Tale’ Emmy chances, by the numbers – Yahoo

  • 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
    Marvell Technology Stock Rallies After AI Event Sparks Investor Optimism – Yahoo Finance

    Marvell Technology Stock Rallies After AI Event Sparks Investor Optimism – Yahoo Finance

    Promising Technology Stocks To Follow Today – June 22nd – MarketBeat

    Top Technology Stocks to Watch Today – June 22nd

    Technology Convergence Report 2025 – The World Economic Forum

    Technology Convergence Report 2025 – The World Economic Forum

    How AI can help make cities work better for residents – MIT Technology Review

    How AI can help make cities work better for residents – MIT Technology Review

    Tech Champions with Leo Bletnitsky of Healthy Technology Solutions – Buzz Media Group

    Meet Tech Champion Leo Bletnitsky of Healthy Technology Solutions

    Crypto’s true revolution is about humanity, not technology – Cointelegraph

    Crypto’s Real Revolution: Transforming Humanity Beyond Technology

    Trending Tags

    • Nintendo Switch
    • CES 2017
    • Playstation 4 Pro
    • Mark Zuckerberg
No Result
View All Result
  • Home
  • Business
  • Entertainment
    Netflix unveils Dallas immersive venue for fans of hit shows like ‘Squid Game,’ ‘Stranger Things’ – Houston Chronicle

    Step Inside Netflix’s New Dallas Immersive Experience Featuring Hits Like ‘Squid Game’ and ‘Stranger Things

    ‘Puttin’ on the Ritz’: Civic Players bring ‘Young Frankenstein’ to life – Yahoo

    Civic Players Deliver a Hilarious and Unforgettable Performance of ‘Young Frankenstein

    ‘Wheel of Fortune’: Amputee Wins $60,000 After Breaking Incredible ‘Curse’ – Hastings Tribune

    Wheel of Fortune’ Amputee Breaks Incredible ‘Curse’ to Win $60,000!

    North Star Sports & Entertainment Network: Coming soon – KTTC News

    North Star Sports & Entertainment Network: Coming soon – KTTC News

    Safety concerns in Deep Ellum create apprehension as the entertainment district gains visitors – CBS News

    Safety Concerns Surge Amid Deep Ellum’s Booming Popularity and Growing Crowds

    Elisabeth Moss’ ‘Handmaid’s Tale’ Emmy chances, by the numbers – Yahoo

    Elisabeth Moss’ ‘Handmaid’s Tale’ Emmy chances, by the numbers – Yahoo

  • 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
    Marvell Technology Stock Rallies After AI Event Sparks Investor Optimism – Yahoo Finance

    Marvell Technology Stock Rallies After AI Event Sparks Investor Optimism – Yahoo Finance

    Promising Technology Stocks To Follow Today – June 22nd – MarketBeat

    Top Technology Stocks to Watch Today – June 22nd

    Technology Convergence Report 2025 – The World Economic Forum

    Technology Convergence Report 2025 – The World Economic Forum

    How AI can help make cities work better for residents – MIT Technology Review

    How AI can help make cities work better for residents – MIT Technology Review

    Tech Champions with Leo Bletnitsky of Healthy Technology Solutions – Buzz Media Group

    Meet Tech Champion Leo Bletnitsky of Healthy Technology Solutions

    Crypto’s true revolution is about humanity, not technology – Cointelegraph

    Crypto’s Real Revolution: Transforming Humanity Beyond Technology

    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

Unraveling the complexity of melon-pumpkin graft collapse

January 8, 2024
in Science
Unraveling the complexity of melon-pumpkin graft collapse
Share on FacebookShare on Twitter

Unraveling the complexity of melon-pumpkin graft collapse: Hormonal imbalances and stress responses in incompatible combinations

Comparison of leaf metabolites between graft combinations and between treatments, i.e. fruiting and fruit removed. Credit: Horticulture Research

Grafting melon (Cucumis melon L.) onto pumpkin (Cucurbita maxima Duch. × Cucurbita moschata Duch.) rootstock is a method of improving yield but is challenged by the scion-rootstock incompatibility leading to plant collapse attributed to various physiological and biochemical factors.

Although initial beliefs that blockages in graft zones cause late-stage collapses, recent studies have shown that specific metabolites and hormone imbalances, particularly cytokinins and auxin (IAA), are more likely culprits.

These findings indicate a complex interplay of stress response and hormone regulation that disrupts the putative blockage mechanism and points towards metabolic and hormonal imbalances as the main factors inducing plant collapse, thus necessitating further research into the underlying physiological pathways.

Horticulture Research published research titled “Impairment of root auxin–cytokinins homeostasis induces collapse of incompatible melon grafts during fruit ripening.”

In this study, researchers conducted a series of hormone and metabolomic profiling, gene expression monitoring, and biochemical analyses of compatible and incompatible melon-pumpkin grafts under fruiting and fruitless conditions to understand the impact of grafting melon onto pumpkin rootstocks.

They found significant differences that emerged in the accumulation of certain leaf metabolites according to plant physiological stages, suggesting the rootstock genotype plays a role in metabolite accumulation.

This study revealed that the rate of collapse increased during fruit ripening due to early root senescence of incompatible graft roots and increased hydrogen peroxide content. Hormone profiling showed elevated levels of IAA, 2-oxoindole-3-acetic acid (IAA catabolite), indole-3-acetyl aspartic acid (IAA conjugate), and cis-zeatin-type cytokinins but lower levels of trans-zeatin-type cytokinins in the roots of incompatible combinations of plants during fruit ripening.

This suggested a disrupted hormone balance and potential blockage at the graft junction. Additionally, expression of the YUCCA gene, YUC2, YUC6, and YUC11 (required for auxin biosynthesis), the GRETCHEN-HAGEN3 gene (required for auxin conjugation), and the cytokinin oxidase/dehydrogenase 7 (CKX7) gene (which regulates the irreversible degradation of cytokinins) were enhanced in roots of incompatible combinations of plants during fruit ripening.

Further studies showed that the level of cytokinin oxidase/dehydrogenase, which degrades cytokinins, was higher in the roots of incompatible grafts. Moreover, high levels of IAA in the roots of the incompatible grafts during fruiting disrupt the balance between IAA and cytokinins, leading to oxidative stress and a reduction in photoassimilate transport from scion to rootstock.

H2O2 and MDA contents increased, and antioxidant enzyme activities decreased in the roots of the incompatible grafts during fruit ripening. The results suggest that the collapse of incompatible graft combinations during fruit ripening is closely associated with a dramatic accumulation of IAA in the root system, which may cause oxidative damage and disrupt the balance of IAA and cytokinins that is essential for the compatibility of melon-pumpkin grafts.

Overall, this study points to a complex interplay of hormonal imbalances, oxidative stress, and metabolite changes that leads to the collapse of incompatible melon-pumpkin grafts, especially during fruit ripening. This suggests the need for further research to understand the mechanisms behind graft incompatibility fully and to develop strategies to mitigate these effects for more successful grafting practices.

More information:
Maria Dolores Camalle et al, Impairment of root auxin–cytokinins homeostasis induces collapse of incompatible melon grafts during fruit ripening, Horticulture Research (2022). DOI: 10.1093/hr/uhac110

Provided by
Plant Phenomics

Citation:
Unraveling the complexity of melon-pumpkin graft collapse (2024, January 8)
retrieved 8 January 2024
from https://phys.org/news/2024-01-unraveling-complexity-melon-pumpkin-graft.html

This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no
part may be reproduced without the written permission. The content is provided for information purposes only.

>>> Read full article>>>
Copyright for syndicated content belongs to the linked Source : Phys.org – https://phys.org/news/2024-01-unraveling-complexity-melon-pumpkin-graft.html

Tags: Complexityscienceunraveling
Previous Post

Accessing the bronze tomato’s enhanced antioxidant and health properties through metabolic engineering

Next Post

Study of Darwin’s finches sheds light on how one species become many

Marvell Technology Stock Rallies After AI Event Sparks Investor Optimism – Yahoo Finance

Marvell Technology Stock Rallies After AI Event Sparks Investor Optimism – Yahoo Finance

June 23, 2025
Atlanta Sports: High school, college and pro sports from the AJC – AJC.com

Atlanta Sports Update: Exciting High School, College, and Pro Highlights

June 23, 2025
US judge blocks slashing of universities’ federal funding from National Science Foundation – Reuters

US Judge Halts Cuts to Federal Funding for Universities from National Science Foundation

June 23, 2025
The Computer-Science Bubble Is Bursting – The Atlantic

Is the Computer-Science Boom Coming to an End?

June 23, 2025

6 Life Moments When Staying Silent Is the Wisest Choice

June 23, 2025
Dollar Gains as the World Awaits Iran’s Response to US Attack – Yahoo Finance

Dollar Gains as the World Awaits Iran’s Response to US Attack – Yahoo Finance

June 23, 2025
The Political Economy of Reform in Lebanon and its Challenges – Middle East Transparent

Unveiling Lebanon’s Reform Journey: Overcoming Challenges and Political Obstacles

June 23, 2025
Three AI Trends Reshaping the Future of Media & Entertainment – TVTechnology

3 Game-Changing AI Trends Revolutionizing the Future of Media and Entertainment

June 23, 2025
Tell us your immigration crackdown story – CNN

Tell us your immigration crackdown story – CNN

June 23, 2025
Promising Technology Stocks To Follow Today – June 22nd – MarketBeat

Top Technology Stocks to Watch Today – June 22nd

June 23, 2025

Categories

Archives

June 2025
MTWTFSS
 1
2345678
9101112131415
16171819202122
23242526272829
30 
« May    
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 (697)
  • Economy (713)
  • Entertainment (21,611)
  • General (15,529)
  • Health (9,753)
  • Lifestyle (718)
  • News (22,149)
  • People (716)
  • Politics (720)
  • Science (15,932)
  • Sports (21,210)
  • Technology (15,699)
  • World (693)

Recent News

Marvell Technology Stock Rallies After AI Event Sparks Investor Optimism – Yahoo Finance

Marvell Technology Stock Rallies After AI Event Sparks Investor Optimism – Yahoo Finance

June 23, 2025
Atlanta Sports: High school, college and pro sports from the AJC – AJC.com

Atlanta Sports Update: Exciting High School, College, and Pro Highlights

June 23, 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