Advertisement
Friday, Aug 12, 2022
Outlook.com
Outlook.com
India Science Wire

Scientists Unravel Mechanism of Stress Tolerance In Tomato

This has pushed scientists to better understand the mechanisms of drought tolerance in tomato so that they can develop sturdier tomato plants which can tolerate adverse climate conditions.

Scientists Unravel Mechanism of Stress Tolerance In Tomato
Scientists Unravel Mechanism of Stress Tolerance In Tomato
outlookindia.com
2018-03-08T16:14:58+05:30

Tomato, a vegetable crop grown worldwide, is facing significant losses in productivity due to environmental factors like drought, floods, salinity and heat. This has pushed scientists to better understand the mechanisms of drought tolerance in tomato so that they can develop sturdier tomato plants which can tolerate adverse climate conditions.

A group of scientists from the Indian Institute of Vegetable Research (IIVR), Varanasi have studied the role and mechanism of action of a key molecule, proline, in enhancing stress tolerance in tomato. Proline, primarily an amino acid required for protein formation in tomato, has attracted researchers since discovery of its role in combating stress. Proline can either be incorporated in proteins to form Proline-rich proteins or in its free form it act as osmoprotectant helping the plant to overcome stress.

IIVR researchers have found that the expression of SlPRP, a gene involved in the formation of proline-rich protein declines when tomato plant is subjected to drought stress in all the plant parts such as leaves, roots and flowers. They further showed that when the expression of this gene decreases, proline levels increase in the plant. Based on these results, scientists concluded that the plant reduces the expression of this gene under drought stress in order to avoid the use of free prolines for synthesis of protein. This way proline can effectively act as osmoprotectant and mitigate the effects of drought on plant survival till de novo synthesis of proline begins.

“This study contributes in understanding the mechanism of regulation of cellular proline concentration under drought stress and opens up the new strategies to manipulate plants for developing drought stress tolerance”, explained Suhas G. Karkute, a member of the research team.

Tomato, an antioxidant-rich vegetable, is commonly used curry ingredient in Indian kitchens. Over the years, there have been episodes of a surge in tomato prices due to crop failure on due to adverse climatic conditions. More such instances are predicted to be recurrent in the scenario of climate change, thus, making stress tolerant crops is a research priority.

Advertisement

Outlook Newsletters

Advertisement
Advertisement
Advertisement

Read More from Outlook

Lament Of Separation: Songs Of Habba Khatun, Last Queen Of Kashmir, Still Echo In Valley

Lament Of Separation: Songs Of Habba Khatun, Last Queen Of Kashmir, Still Echo In Valley

In happy times and sad, Habba Khatun’s sensuous songs make both young and old emotional. With the never-ending conflict bringing tragedies to every doorstep, Habba’s lyrics of separation amplify their mourning.

How Indian Laws Govern People’s Right To Love And Live

How Indian Laws Govern People’s Right To Love And Live

In India, only those relationships between a man and a woman are considered to be legitimate when there is a marriage between the two.

Kohli Quits Test Captaincy, Leaves Leadership Vacuum

Kohli Quits Test Captaincy, Leaves Leadership Vacuum

Virat Kohli, 33, had recently stepped down as India's T20I captain and was subsequently removed as the ODI captain.

UP Elections 2022: How Congress Is Harnessing Power Of 'Persecuted' Women To Counter BJP

UP Elections 2022: How Congress Is Harnessing Power Of 'Persecuted' Women To Counter BJP

A Mahila Congress leader, who is the face of the ‘Ladki Hoon, Lad Sakti Hoon’ campaign, however, has accused the party of anti-women bias after she was denied a ticket.

Advertisement