guard cell are usually ?
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Guard cells are cells surrounding each stoma. They help to regulate the rate of transpiration by opening and closing the stomata. Light is the main trigger for the opening or closing. ... Guard cells contain phototropin proteins which are serine and threonine kinases with blue-light photoreceptor activity.
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Guard cells are cells surrounding each stoma. They help to regulate the rate of transpiration by opening and closing the stomata. Light is the main trigger for the opening or closing. ... Guard cells contain phototropin proteins which are serine and threonine kinases with blue-light photoreceptor activity.
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