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dc.creatorVeljović-Jovanović, Sonja
dc.creatorVidović, Marija
dc.creatorMorina, Filis
dc.creatorProkic, Ljiljana
dc.creatorTodorović, D. M.
dc.date.accessioned2022-04-05T15:05:19Z
dc.date.available2022-04-05T15:05:19Z
dc.date.issued2016
dc.identifier.issn0195-928X
dc.identifier.urihttp://rimsi.imsi.bg.ac.rs/handle/123456789/1004
dc.description.abstractGreen-white variegated leaves of Pelargonium zonale were studied using the photoacoustic method. Our aim was to characterize photosynthetically active green tissue and nonphotosynthetically active white tissue by the photoacoustic amplitude signals. We observed lower stomatal conductance and higher leaf temperature in white tissue than in green tissue. Besides these thermal differences, significantly higher absorbance in green tissue was based on chlorophyll and carotenoids which were absent in white tissue. However, optical properties of epidermal layers of both tissues were equal. The photoacoustic amplitude of white tissue was over four times higher compared to green tissue, which was correlated with lower stomatal conductance. In addition, at frequencies >700 Hz, the significant differences between the photoacoustic signals of green and white tissue were obtained. We identified the photoacoustic signal deriving from photosynthetic oxygen evolution in green tissue, using high intensity of red light modulated at 10 Hz. Moreover, the photoacoustic amplitude of green tissue increased progressively with time which corresponded to the period of induction of photosynthetic oxygen evolution. For the first time, very high frequencies (1 kHz to 5 kHz) were applied on leaf material.en
dc.publisherSpringer/Plenum Publishers, New York
dc.relationinfo:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/43010/RS//
dc.relationinfo:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/171016/RS//
dc.rightsrestrictedAccess
dc.sourceInternational Journal of Thermophysics
dc.subjectVariegated plantsen
dc.subjectThermal imagingen
dc.subjectStomatal conductanceen
dc.subjectPhotosynthesisen
dc.subjectPhotoacoustic methoden
dc.subjectPelargonium zonaleen
dc.titleComparison of Photoacoustic Signals in Photosynthetic and Nonphotosynthetic Leaf Tissues of Variegated Pelargonium zonaleen
dc.typearticle
dc.rights.licenseARR
dc.citation.issue9
dc.citation.other37(9): -
dc.citation.rankM23
dc.citation.volume37
dc.identifier.doi10.1007/s10765-016-2092-7
dc.identifier.scopus2-s2.0-85032068376
dc.identifier.wos000381183200003
dc.type.versionpublishedVersion


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