title: Photoacoustic analysis of the ultrasonic irradiation effect in the photosynthetic activity in aquatic lirium plants.
abstract: We report, the application of the photoacoustic technique for monitoring the photosynthesis evolution in aquatic lirium (Eichhornia Crassipes), before and after it was exposed to ultrasonic irradiations. We obtained the disappearance of the phototobaric contribution in the PA signal measured for the irradiated samples with ultrasound of 17 kHz, and therefore of a possible damage in the centers producing the photosynthesis, due to the irradiation. These results show the utility of the ultrasonic irradiation, as well as, of the photosynthesis monitoring by means of the photoacoustic technique, for the elaboration and establishment of methodologies in the control of this aquatic plant, whose propagation causes many consequences extremely unfavorable for the environment, as well as for the diverse human activities that are developed in the bodies of water in the tropical and sub-tropical regions of the world.
authors.affiliation: Instituto Politécnico Nacional, CICATA Legaria. Av. Legaria No. 694 Col. Irrigación, 11500 México D.F., Mexico. Electronic address: jcalderona@ipn.mx.
authors.forename: A
authors.initials: A
authors.lastname: Calderón
authors.forename: A
authors.initials: A
authors.lastname: Cardona
authors.forename: U
authors.initials: U
authors.lastname: Nogal
authors.forename: A G
authors.initials: AG
authors.lastname: Juárez Gracia
authors.forename: E
authors.initials: E
authors.lastname: Marín
authors.forename: R A
authors.initials: RA
authors.lastname: Muñoz Hernández
mesh_terms: D000162:Acoustics; D031806:Eichhornia / Q000502:physiology* / Q000528:radiation effects; D055668:Photochemical Processes; D010788:Photosynthesis; D014465:Ultrasonics
keywords: Aquatic lirium; Cavitation; Photoacoustic; Photosynthesis; Ultrasound