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| Bacteria help corals survive high temperatures |
Researchers explore the use of probiotics to protect the survival of corals after bleaching events
.
Image source: King Abdullah University of Science and TechnologyResearchers explore the use of probiotics to protect the survival of corals after bleaching events
Climate change is increasing ocean temperatures, which destroys the relationship between corals and their symbiotic photosynthetic algae and causes bleaching
.
Researchers from King Abdullah University of Science and Technology in Saudi Arabia proposed that by influencing coral microbiota may increase their tolerance
To verify this, the research team selected six beneficial strains isolated from corals and applied the relevant mixture to the corals
.
At the same time, the researchers allowed the coral's exposure temperature to rise to 30 degrees Celsius within 10 days and then fall back to 26 degrees Celsius
At first, there was no difference-probiotics and corals without probiotics reacted similarly at peak temperatures, and both had bleaching
.
The lead author of the paper, Erika Santoro, said, “But when the temperature was lowered, we observed that the corals treated with probiotics were significantly different
Researchers found that during the recovery period, the expression of genes related to apoptosis and cell remodeling in corals that used probiotics decreased, and the expression of heat stress protection genes increased
.
The use of probiotics is an effective tool to help corals cope with thermal stress, but it is not a panacea.
Santoro said that for the protection of corals, the most important thing is to reduce greenhouse gas emissions, and corals will need all these interventions
.
(Source: Lu Yi, China Science News)
Related paper information: https://doi.
https://doi.
org/10.
1126/sciadv.
abg3088
