Rodriguez AFR, Jacobson TKB, Moraes JSF, Faria FSEDV, Cunha RM, Santos JG, Oliveira AC, Azevedo RB, Morales MA, Morais PC. Photoacoustic spectroscopy study of Blepharocalyx salicifolius (Kunt) O. Berg.
Spectrochim Acta A Mol Biomol Spectrosc 2013;
100:75-77. [PMID:
22867562 DOI:
10.1016/j.saa.2012.07.002]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2011] [Revised: 06/06/2012] [Accepted: 07/05/2012] [Indexed: 06/01/2023]
Abstract
Photoacoustic spectroscopy (PAS) has revolutionized the fields of biological, environmental, and agricultural sciences. It is a very simple, sensitive, and non-destructive technique that allows the determination of optical properties of bio-samples. The in vivo chlorophylls of the leaf have a recorded maximum absorption peak at 675 nm as against 665 nm of the in vitro chlorophylls. The intensity of purple pigmentation in leaves of Blepharocalyx salicifolius (Kunt) O. Berg, is inversely correlated to the soil moisture levels, leaf water content and leaf water potentials. The applicability of PAS to biological samples was discussed. It allows the validation of existing emission models which are important for atmospheric process. A portable device for photoacoustic spectroscopy of plants and other photosynthetic tissues, cells and organelles is provided. Further, there is provided a method to measure photosynthesis of such tissues, cells and organelles.
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