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July 25, 2025, 08:26:40 pm

Author Topic: Stomatal Regulation  (Read 728 times)  Share 

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peterpan101

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Stomatal Regulation
« on: April 08, 2013, 03:58:29 pm »
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Does anyone know what the hypothesis regarding Stomatal Regulation are ?

Yacoubb

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Re: Stomatal Regulation
« Reply #1 on: April 08, 2013, 04:22:49 pm »
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I'm not sure if this is what you mean, but stomatal regulation refers to the opening and closing of the stomata, depending upon the turgidity of the guard cells surrounding the stomata. Stomata are pores in the leaves of plants that enable the exchange of gases and water into and out of the cell. When the guard cells fill up with water and become turgor, they open space for gases such as CO2 to enter the cell, and for H2O to leave the cell via the transpiration stream. This is also important in controlling the overall rate of photosynthesis; if stomata are always closed, CO2 will become a limiting factor and limit the rate of photosynthesis.