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Abstract Detail


Intracellular Signaling

Volkov, Alexander [1], Lang, Ryan [2], Volkova, Maia [3], Osei, Albert [4].

Electrical Signaling in Aloe Vera Induced by Localized Thermal Stress.

Action potentials in higher plants are theorized as the information carriers in intercellular and intracellular communication in the presence of environmental stressors. Among the most common stressors is heat shock. Under stressful conditions, the response reactions of plant tissues and organs can be local or transmitted over long distances. In this article, the speeds of propagation of thermally induced action potentials in green plants are discussed, and their speeds were found to be comparable to those occurring in various mammalian species. These rapid action potentials in green plants were recorded in real time using modern data acquisition techniques. According to our measurements, a single application of localized heat stress induces fast action potentials in Aloe vera (67 m/s). Electrical signals propagated along all leaves of the Aloe vera plants were studied. Possible pathways for electrical signal propagation in vascular plants are also discussed.


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1 - Oakwood College, Chemistry and Biochemistry
2 - Oakwood Collge, Chemistry and Biochemistry
3 - Oakwood College, Chemistry and Biochemistry, 7000 Adventist Blvd., Huntsville, Alabama, 35896, USA
4 - Oakwood College, Mathematics and Computer Science

Keywords:
Action potential
Electrophysiology.

Presentation Type: Plant Biology Abstract
Session: P
Location: Exhibit Hall (Northeast, Southwest & Southeast)/Hilton
Date: Sunday, July 8th, 2007
Time: 8:00 AM
Number: P33013
Abstract ID:923


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