Pregled bibliografske jedinice broj: 1193014
Effect of Elevated Temperature and Excess Light on Photosynthetic Efficiency, Pigments, and Proteins in the Field-Grown Sunflower during Afternoon
Effect of Elevated Temperature and Excess Light on Photosynthetic Efficiency, Pigments, and Proteins in the Field-Grown Sunflower during Afternoon // Horticulturae, 8 (2022), 5; 392, 16 doi:10.3390/horticulturae8050392 (međunarodna recenzija, članak, znanstveni)
CROSBI ID: 1193014 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Effect of Elevated Temperature and Excess Light on
Photosynthetic Efficiency, Pigments, and Proteins
in the Field-Grown Sunflower during Afternoon
Autori
Markulj Kulundžić, Antonela ; Viljevac Vuletić, Marija ; Matoša Kočar, Maja ; Antunović Dunić, Jasenka ; Varga, Ivana ; Zdunić, Zvonimir ; Sudarić, Aleksandra ; Cesar, Vera ; Lepeduš, Hrvoje
Izvornik
Horticulturae (2311-7524) 8
(2022), 5;
392, 16
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
Chlorophyll a fluorescence ; Temperature ; Solar radiation ; Tolerance ; Pigments ; Proteins
Sažetak
This study examined the photosynthetic responses of two sunflower hybrids to elevated temperatures and excess light intensity in the flowering stage by measuring the chlorophyll a fluorescence (ChlF) under morning and afternoon field conditions to determine the photosynthetic pigment contents and the relative accumulation of photosynthetic proteins. The morning environmental conditions were considered optimal, while the afternoon was characterised by elevated temperatures and excess light intensity. The minimum fluorescence intensity (F0), the electron-flux-reducing end electron acceptors at the photosystem I acceptor side per reaction centre (RE0/RC), and the D1 protein had significant, high, and positive correlations with the environmental conditions, which indicates that they were the most useful in the sunflower-stress-response research. In hybrid 7, the elevated temperatures and the excess light intensity resulted in the inactivation of the oxygen-evolving complex, which was indicated by the positive L, K, and J steps, the increase in the maximum quantum yield of PSII (TR0/ABS), the decrease in the electron transport further than the primary acceptor QA (ET0/(TR0-ET0)), the reduction in the performance index (PIABS), and the higher relative accumulation of the light- harvesting complex of the photosystem (LHCII). Hybrid 4 had smaller changes in the fluorescence curves in phases O–J and J–I, and especially in steps L, K, J, and I, and a higher PIABS, which indicates a more efficient excitation energy under the unfavourable conditions. As the tested parameters were sensitive enough to determine the significant differences between the sunflower hybrids in their photosynthetic responses to the elevated temperatures and excess light intensity in the flowering stage, they can be considered useful selection criteria. The development of more adaptable sunflower hybrids encourages sustainable sunflower production under stressful growing conditions.
Izvorni jezik
Engleski
Znanstvena područja
Biologija, Poljoprivreda (agronomija)
POVEZANOST RADA
Projekti:
MZOS-073-0000000-3538 - Stabilnost genotipova suncokreta na važna agronomska svojstva i kakvoću ulja (Krizmanić, Miroslav, MZOS ) ( CroRIS)
MZOS-073-0731674-1673 - Utjecaj oksidativnog stresa na organizaciju i funkciju biljnih stanica i tkiva (Lepeduš, Hrvoje, MZOS ) ( CroRIS)
Ustanove:
Poljoprivredni institut Osijek,
Filozofski fakultet, Osijek,
Sveučilište u Osijeku - Odjel za biologiju,
Fakultet za dentalnu medicinu i zdravstvo, Osijek
Profili:
Maja Matoša
(autor)
Marija Viljevac
(autor)
Vera Cesar-Lepeduš
(autor)
Zvonimir Zdunić
(autor)
Antonela Markulj Kulundžić
(autor)
Ivana Varga
(autor)
Hrvoje Lepeduš
(autor)
Aleksandra Sudarić
(autor)
Jasenka Antunović Dunić
(autor)
Citiraj ovu publikaciju:
Časopis indeksira:
- Current Contents Connect (CCC)
- Web of Science Core Collection (WoSCC)
- Science Citation Index Expanded (SCI-EXP)
- SCI-EXP, SSCI i/ili A&HCI
- Scopus