Explaining how ozone "chokes up" plants
... as was generally assumed, ozone actually inhibits stomatal opening by directly affecting the 'guard cells' th...urfaces, she found that ozone directly affects the stomatal opening. Using isolated guard cells, she monitored the flow of potassium, in a positively charged...... cultural factors such as irrigation promote the stomatal openings and increases the risk of ozone injury to plants. She also says that ozone causes deleterious effects on plant photosynthesis, as well as the rate of plant production, flowering and yield. While the processes are not well understood, ozone ...UNC, Penn State scientists find gene that controls water retention in plants
...e controls the size of openings in leaves known as stomatal pores. Surrounding guard cells regulate the opening and closing of the pores. Normally, when the soil becomes drier through lack of rainfall, guard cells increase in size to close down the openings and reduce the amount of water plants lose to the a...Biologists discover protein's impace on plant-water balance
...lls control the opening and closing of microscopic stomatal pores on leaves of plants through which the plant ...e amount of water lost by the plants through their stomatal pores. The research team's results will be published in the 15 June 2001 edition of Science. "The ...UCSD researchers decipher molecular "code" capable of controlling plant water loss during droughts
...ghts by more rapidly and effectively closing their stomatal pores, where 95 percent of the water loss in plants occur, they could better survive drought periods by conserving water until the next rain hits. The commercial impact would be substantial. In the past decade, the average loss in the corn crop in t...Gene found that controls stomatal cell growth in plants
... gene that controls the distribution of stomatal cells on leaves, key componen...formation and distribution of stomatal cells on the surfaces of leaves. Arabidopsis thaliana is ...Plants and people share a molecular signaling system, researchers discover
...G-protein alpha subunit, not only do you knock out stomatal closure, but you also knock out the ability of the S1P protein to regulate these ion channels in the cells that border the pores," Assmann says. Assmann notes that a high-yielding Green Revolution variety of rice also lacks the gene necessary for pr...