Bacterial detoxification of plant defence secondary metabolites mediates the interaction between a shrub and frugivorous birds
Beny Trabelcy (),
Nimrod Shteindel,
Maya Lalzar,
Ido Izhaki and
Yoram Gerchman ()
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Beny Trabelcy: University of Haifa
Nimrod Shteindel: University of Haifa
Maya Lalzar: University of Haifa
Ido Izhaki: University of Haifa
Yoram Gerchman: University of Haifa
Nature Communications, 2023, vol. 14, issue 1, 1-11
Abstract:
Abstract Many plants produce fleshy fruits, attracting fruit-eating animals that disperse the seeds in their droppings. Such seed dispersal results in a conflict between the plant and the animal, as digestion of seeds can be highly beneficial to the animal but reduces plant fitness. The plant Ochradenus baccatus uses the myrosinase-glucosinolates system to protect its seeds. We show that hydrolysis of the O. baccatus fruit glucosinolates by the myrosinase enzyme inhibited digestive enzymes and hampered digestion in naïve individuals of the bird Pycnonotus xanthopygos. However, digestion in birds regularly feeding on O. baccatus fruits was unaffected. We find that Pantoea bacteria, dominating the gut of these experienced birds as well as the fruits, thrive on glucosinolates hydrolysis products in culture. Augmentation of Pantoea protects both naïve birds and plant seedlings from the effects of glucosinolates hydrolysis products. Our findings demonstrate a tripartite interaction, where the plant-bird mutually beneficial interactions are mediated by a communal bacterial tenant.
Date: 2023
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Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:14:y:2023:i:1:d:10.1038_s41467-023-37525-6
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DOI: 10.1038/s41467-023-37525-6
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