OSCA1.3 Plant protein
- Plants have a unique ability to safeguard themselves against pathogens and resist infection.
- In case of any threat, a flood of calcium surrounds stomata which trigger it to close.
- The stomata are encircled by two guard cells that respond to the calcium signals telling them to either expand or contract.
- This triggers innate immune signals and initiates the plants’ defence response.
- The calcium cannot directly pass through guard cell membranes, so, a protein called OSCA1.3 forms a channel leaking calcium to the cells.
