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Pregled bibliografske jedinice broj: 1183916

Chlorophylls content and photosynthetic performance in Aleppo pine needles


Trstenjak, Tomo; Lepeduš, Hrvoje; Antunović Dunić, Jasenka; Mlinarić, Selma; Cesar, Vera
Chlorophylls content and photosynthetic performance in Aleppo pine needles // 13th Croatian biological congress with International Participation / Kružić, Petar ; Caput Mihalić, Katarina ; Gottstein, Sanja ; Pavoković, Dubravko ; Kučinić, Mladen (ur.).
Zagreb: Hrvatsko biološko društvo, 2018. str. 213-214 (poster, međunarodna recenzija, sažetak, znanstveni)


CROSBI ID: 1183916 Za ispravke kontaktirajte CROSBI podršku putem web obrasca

Naslov
Chlorophylls content and photosynthetic performance in Aleppo pine needles

Autori
Trstenjak, Tomo ; Lepeduš, Hrvoje ; Antunović Dunić, Jasenka ; Mlinarić, Selma ; Cesar, Vera

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
13th Croatian biological congress with International Participation / Kružić, Petar ; Caput Mihalić, Katarina ; Gottstein, Sanja ; Pavoković, Dubravko ; Kučinić, Mladen - Zagreb : Hrvatsko biološko društvo, 2018, 213-214

Skup
13. Hrvatski biološki kongres

Mjesto i datum
Poreč, Hrvatska, 19.09.2018. - 23.09.2018

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Aleppo pine, chlorophyll a fluorescence, photosynthesis, photosystem II, Pinus

Sažetak
Aleppo pine (Pinus halepensis L.) is widely spread Mediterranean woody species. Its natural and cultivated populations can be frequently found in the coastal area of the Adriatic Sea. Usually, needles fall down after the second year, what can be the reason for substantial crown defoliation under extreme environmental stress. The aim of this investigation was to compare the chlorophylls content and photosynthetic performance in current- year (CY) and previousyear (PY) A. pine needles. Chlorophylls concentrations were determined spectrophotometrically and the photosynthetic performance was determined by measuring the increase in chlorophyll a fluorescence (JIP test). Results revealed that concentrations of chlorophylls a and b were almost two folded in PY needles compared to CY ones, what was statistically significant. Chlorophylls a to b ratio and values of the maximum quantum yield of the photosystem II (Fv/Fm) showed no statistical significance between CY and PY needles. However, performance index (PIABS) was significantly higher in CY needles compared to PY ones. Based on the presented results it can be concluded that despite of considerably lower chlorophylls content, CY needles reveled enhanced photosynthetic performance than older needles. The analysis of JIP test parameters showed that the main reason for this was better utilization of absorbed light energy in CY needles due to their more competent photosynthetic electron transport, in comparison to PY needles.

Izvorni jezik
Engleski

Znanstvena područja
Biologija



POVEZANOST RADA


Projekti:
MZOS-073-0731674-1673 - Utjecaj oksidativnog stresa na organizaciju i funkciju biljnih stanica i tkiva (Lepeduš, Hrvoje, MZOS ) ( CroRIS)
073-0731674-0841 - Stanična i tkivna diferencijacija tijekom razvoja biljnih organa

Ustanove:
Filozofski fakultet, Osijek,
Sveučilište u Osijeku - Odjel za biologiju


Citiraj ovu publikaciju:

Trstenjak, Tomo; Lepeduš, Hrvoje; Antunović Dunić, Jasenka; Mlinarić, Selma; Cesar, Vera
Chlorophylls content and photosynthetic performance in Aleppo pine needles // 13th Croatian biological congress with International Participation / Kružić, Petar ; Caput Mihalić, Katarina ; Gottstein, Sanja ; Pavoković, Dubravko ; Kučinić, Mladen (ur.).
Zagreb: Hrvatsko biološko društvo, 2018. str. 213-214 (poster, međunarodna recenzija, sažetak, znanstveni)
Trstenjak, T., Lepeduš, H., Antunović Dunić, J., Mlinarić, S. & Cesar, V. (2018) Chlorophylls content and photosynthetic performance in Aleppo pine needles. U: Kružić, P., Caput Mihalić, K., Gottstein, S., Pavoković, D. & Kučinić, M. (ur.)13th Croatian biological congress with International Participation.
@article{article, author = {Trstenjak, Tomo and Lepedu\v{s}, Hrvoje and Antunovi\'{c} Duni\'{c}, Jasenka and Mlinari\'{c}, Selma and Cesar, Vera}, year = {2018}, pages = {213-214}, keywords = {Aleppo pine, chlorophyll a fluorescence, photosynthesis, photosystem II, Pinus}, title = {Chlorophylls content and photosynthetic performance in Aleppo pine needles}, keyword = {Aleppo pine, chlorophyll a fluorescence, photosynthesis, photosystem II, Pinus}, publisher = {Hrvatsko biolo\v{s}ko dru\v{s}tvo}, publisherplace = {Pore\v{c}, Hrvatska} }
@article{article, author = {Trstenjak, Tomo and Lepedu\v{s}, Hrvoje and Antunovi\'{c} Duni\'{c}, Jasenka and Mlinari\'{c}, Selma and Cesar, Vera}, year = {2018}, pages = {213-214}, keywords = {Aleppo pine, chlorophyll a fluorescence, photosynthesis, photosystem II, Pinus}, title = {Chlorophylls content and photosynthetic performance in Aleppo pine needles}, keyword = {Aleppo pine, chlorophyll a fluorescence, photosynthesis, photosystem II, Pinus}, publisher = {Hrvatsko biolo\v{s}ko dru\v{s}tvo}, publisherplace = {Pore\v{c}, Hrvatska} }




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