Comparison of Photoacoustic Signals in Photosynthetic and Nonphotosynthetic Leaf Tissues of Variegated Pelargonium zonale
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2016
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Metapodaci
Prikaz svih podataka o dokumentuApstrakt
Green-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 intens...ity 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.
Ključne reči:
Pelargonium zonale / Photoacoustic method / Photosynthesis / Stomatal conductance / Thermal imaging / Variegated plantsIzvor:
International Journal of Thermophysics, 2016, 37, 9Izdavač:
- Springer/Plenum Publishers, New York
Finansiranje / projekti:
- Modifikacije antioksidativnog metabolizma biljaka sa ciljem povećanja tolerancije na abiotski stres i identifikacija novih biomarkera sa primenom u remedijaciji i monitoringu degradiranih staništa (RS-43010)
- Atomski sudarni procesi i fotoakustička spektrometrija molekula i čvrstih tela (RS-171016)
DOI: 10.1007/s10765-016-2092-7
ISSN: 0195-928X
WoS: 000381183200003
Scopus: 2-s2.0-85032068376
Institucija/grupa
Poljoprivredni fakultetTY - JOUR AU - Veljović-Jovanović, Sonja AU - Vidović, Marija AU - Morina, Filis AU - Prokić, Ljiljana AU - Todorović, D.M. PY - 2016 UR - http://aspace.agrif.bg.ac.rs/handle/123456789/4013 AB - Green-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. PB - Springer/Plenum Publishers, New York T2 - International Journal of Thermophysics T1 - Comparison of Photoacoustic Signals in Photosynthetic and Nonphotosynthetic Leaf Tissues of Variegated Pelargonium zonale IS - 9 VL - 37 DO - 10.1007/s10765-016-2092-7 ER -
@article{ author = "Veljović-Jovanović, Sonja and Vidović, Marija and Morina, Filis and Prokić, Ljiljana and Todorović, D.M.", year = "2016", abstract = "Green-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.", publisher = "Springer/Plenum Publishers, New York", journal = "International Journal of Thermophysics", title = "Comparison of Photoacoustic Signals in Photosynthetic and Nonphotosynthetic Leaf Tissues of Variegated Pelargonium zonale", number = "9", volume = "37", doi = "10.1007/s10765-016-2092-7" }
Veljović-Jovanović, S., Vidović, M., Morina, F., Prokić, L.,& Todorović, D.M.. (2016). Comparison of Photoacoustic Signals in Photosynthetic and Nonphotosynthetic Leaf Tissues of Variegated Pelargonium zonale. in International Journal of Thermophysics Springer/Plenum Publishers, New York., 37(9). https://doi.org/10.1007/s10765-016-2092-7
Veljović-Jovanović S, Vidović M, Morina F, Prokić L, Todorović D. Comparison of Photoacoustic Signals in Photosynthetic and Nonphotosynthetic Leaf Tissues of Variegated Pelargonium zonale. in International Journal of Thermophysics. 2016;37(9). doi:10.1007/s10765-016-2092-7 .
Veljović-Jovanović, Sonja, Vidović, Marija, Morina, Filis, Prokić, Ljiljana, Todorović, D.M., "Comparison of Photoacoustic Signals in Photosynthetic and Nonphotosynthetic Leaf Tissues of Variegated Pelargonium zonale" in International Journal of Thermophysics, 37, no. 9 (2016), https://doi.org/10.1007/s10765-016-2092-7 . .