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Fungi-cranberry pairings have unsuspected potential, finds new study

cranberries
Credit: Pixabay/CC0 Public Domain

At many winter holiday tables, cranberries have pride of place as an accompaniment to roast turkey and an ingredient in sparkling cocktails.

This tart little berry is a big part of our seasonal cuisine here in Quebec, and for good reason: in any given year, we're either the second or third largest producer of in the world.

Now scientists at Université de Montréal may have found a natural way to boost production.

In an article in the Journal of Fungi, Bhagya C. Thimmappa, a Ph.D. candidate in the Department of Biochemistry and Molecular Medicine, reported finding that a microbial fungus called Endophytic Champignon 4 (EC4) that colonizes the interior and exterior of cranberry plant roots also promotes the growth of both roots and shoots.

Her research was supervised by professor Gertraud Burger. The microbe was isolated by a team headed by Burger's colleague Franz B. Lang.

Solubilizing the insoluble

"Cranberry plants typically grow in acidic, nutrient-poor soil," Thimmappa said. "We wondered how it was they can thrive in such conditions, and found that EC4 not only allows plants to absorb nutrients, it solubilizes normally insoluble—and therefore inaccessible—nutrients."

In her study, Thimmappa sequenced the EC4 genome to investigate its fertilizing potential at the . The sequencing revealed a large number of genes involved in nitrogen, phosphorus and potassium nutrition, as well as in the production of growth hormones. Greenhouse testing of cultivated plants confirmed that EC4 stimulated their growth.

Thimmappa's discovery that EC4 serves as a could lead to more sustainable cranberry farming. "Consumers and farmers are increasingly interested in finding alternatives to chemicals that have harmful environmental impacts," she said. "And EC4 is a promising green option."

Her team is now collaborating with a variety of Quebec companies to field test the potential of EC4 in natural environments.

More information: Bhagya C. Thimmappa et al, Nuclear Genome Sequence and Gene Expression of an Intracellular Fungal Endophyte Stimulating the Growth of Cranberry Plants, Journal of Fungi (2023). DOI: 10.3390/jof9010126

Citation: Fungi-cranberry pairings have unsuspected potential, finds new study (2023, December 20) retrieved 12 April 2024 from https://phys.org/news/2023-12-fungi-cranberry-pairings-unsuspected-potential.html
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