scholarly journals Steady-State Phosphorylation of Light-Harvesting Complex II Proteins Preserves Photosystem I under Fluctuating White Light

2012 ◽  
Vol 160 (4) ◽  
pp. 1896-1910 ◽  
Author(s):  
Michele Grieco ◽  
Mikko Tikkanen ◽  
Virpi Paakkarinen ◽  
Saijaliisa Kangasjärvi ◽  
Eva-Mari Aro
Keyword(s):  
Steady State ◽  
Photosystem I ◽  
White Light ◽  
Light Harvesting ◽  
Light Harvesting Complex ◽  
Complex Ii ◽  
Light Harvesting Complex Ii

Kinetics and heterogeneity of energy transfer from light harvesting complex II to photosystem I in the supercomplex isolated from Arabidopsis

2017 ◽  
Vol 19 (13) ◽  
pp. 9210-9222 ◽  
Author(s):  
Stefano Santabarbara ◽  
Tania Tibiletti ◽  
William Remelli ◽  
Stefano Caffarri
Keyword(s):  
Energy Transfer ◽  
Photosystem I ◽  
Light Harvesting ◽  
Light Harvesting Complex ◽  
Complex Ii ◽  
Light Harvesting Complex Ii

Energy transfer from the LHCII when associated with the PSI–LHCI is heterogeneous and characterised by macroscopic transfer of ∼55 ns−1 and 15 ns−1, respectively.

Relationship between Changes in Ion Content of Leaves and Chlorophyll-Protein Composition in Cucumber under Cd and Pb Stress

1999 ◽  
Vol 54 (9-10) ◽  
pp. 746-753 ◽  
Author(s):  
Éva Sárvári ◽  
Ferenc Fodor ◽  
Edit Cseh ◽  
Anita Varga ◽  
Gyula Záray ◽  
...  
Keyword(s):  
Chlorophyll Content ◽  
Chlorophyll A ◽  
Photosystem I ◽  
Light Harvesting ◽  
Fluorescence Emission ◽  
Light Harvesting Complex ◽  
Complex Ii ◽  
Iron Deficient ◽  
Light Harvesting Complex Ii ◽  
Chlorophyll Protein

Hydroponically cultured cucumber plants supplied with 4 μᴍ Fe chelated either with EDTA or citrate and treated with Cd (10 μᴍ) and Pb (10, 50 μᴍ) from their one- or fourleaf stage were grown up to five-week-old age. The decrease in the chlorophyll content was the most pronounced in plants treated with Cd from a younger age, and in the case of Fecitrate. The chlorophyll a/b ratio of Cd stressed plants was also significantly lowered. In later treated plants the accumulation of chlorophyll was inhibited and the chlorophyll a/b ratio decreased only in the vigorously growing young leaves. Pb treatment had only a slight effect on both parameters. The changes in the chlorophyll-protein pattern of thylakoids were strongly related to their chlorophyll content but the response of each complex was different. Cd reduced the amount of chlorophyll containing complexes in the order of photosystem I > light-harvesting complex II > photosystem Il-core, while light-harvesting complex II appeared somewhat more sensitive than photosystem I in Pb treated plants. In accordance, a decline or blue shift of the long wavelength fluorescence emission band of chloroplasts was observed referring to disturbances also in photosystem I antenna assembly. The accumulation of chlorophyll and chlorophyll-proteins did not show close relationship to the heavy metal content of leaves which was the highest in the first of the intensively expanding leaves in the time of the treatment. The extraordinary sensitivity of photosystem I, and the relative stability of photosystem II under Cd treatment were similar to the case found in iron deficient plants. However, the pattern of chlorophyll content of leaf storeys of Cd treated plants rather followed the changes in their Mn content

Light-harvesting complex II is an antenna of photosystem I in dark-adapted plants

Nature Plants ◽  
2020 ◽  
Vol 6 (7) ◽  
pp. 860-868 ◽  
Author(s):  
Volha U. Chukhutsina ◽  
Xin Liu ◽  
Pengqi Xu ◽  
Roberta Croce
Keyword(s):  
Photosystem I ◽  
Light Harvesting ◽  
Light Harvesting Complex ◽  
Complex Ii ◽  
Light Harvesting Complex Ii

scholarly journals Structural Characterization of a Complex of Photosystem I and Light-Harvesting Complex II ofArabidopsis thaliana†

Biochemistry ◽  
2005 ◽  
Vol 44 (33) ◽  
pp. 10935-10940 ◽  
Author(s):  
Roman Kouřil ◽  
Agnieszka Zygadlo ◽  
Ana A. Arteni ◽  
Chantal D. de Wit ◽  
Jan P. Dekker ◽  
...  
Keyword(s):  
Photosystem I ◽  
Structural Characterization ◽  
Light Harvesting ◽  
Light Harvesting Complex ◽  
Complex Ii ◽  
Ofarabidopsis Thaliana ◽  
Light Harvesting Complex Ii
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