Photosystem I P700 Chlorophyll a Apoprotein A1 as PCR Marker to Identify Diatoms and their Associated Lineage

2021 ◽  
Author(s):  
Vandana Vinayak ◽  
Mohd Jahir Khan ◽  
Anupam Nath Jha ◽  
Harish Mangesh
Keyword(s):  
Chlorophyll A ◽  
Photosystem I ◽  
Pcr Marker ◽  
Apoprotein A1

A point mutation in the photosystem I P700 chlorophyll a apoprotein A1 gene confers variegation in Helianthus annuus L

2020 ◽  
Vol 103 (4-5) ◽  
pp. 373-389
Author(s):  
Kirill Azarin ◽  
Alexander Usatov ◽  
Maksim Makarenko ◽  
Nikolay Kozel ◽  
Alexey Kovalevich ◽  
...  
Keyword(s):  
Helianthus Annuus ◽  
Point Mutation ◽  
Chlorophyll A ◽  
Photosystem I ◽  
Helianthus Annuus L ◽  
Apoprotein A1

Identification of a single-copy gene encoding a Type I chlorophyll a/b-binding polypeptide of photosystem I in Arabidopsis thaliana

1992 ◽  
Vol 84 (4) ◽  
pp. 561-567 ◽  
Author(s):  
Poul E. Jensen ◽  
Michael Kristensen ◽  
Tine Hoff ◽  
Jan Lehmbeck ◽  
Bjarne M. Stummann ◽  
...  
Keyword(s):  
Arabidopsis Thaliana ◽  
Chlorophyll A ◽  
Photosystem I ◽  
Single Copy ◽  
Type I ◽  
Single Copy Gene ◽  
Gene Encoding ◽  
Copy Gene

On the role of ss-carotene in the reaction center chlorophyll a antennae of photosystem I

1980 ◽  
Vol 50 (1) ◽  
pp. 63-70 ◽  
Author(s):  
By GUNNAR OQUIST ◽  
GORAN SAMUELSSON ◽  
NORMAN I. BISHOP
Keyword(s):  
Chlorophyll A ◽  
Reaction Center ◽  
Photosystem I

scholarly journals Light-regulated translation of chloroplast proteins. I. Transcripts of psaA-psaB, psbA, and rbcL are associated with polysomes in dark-grown and illuminated barley seedlings

1988 ◽  
Vol 106 (2) ◽  
pp. 289-301 ◽  
Author(s):  
RR Klein ◽  
HS Mason ◽  
JE Mullet
Keyword(s):  
Chlorophyll A ◽  
Photosystem I ◽  
In Vitro Translation ◽  
Chain Elongation ◽  
Selective Activation ◽  
Translation Elongation ◽  
In Vitro Synthesis ◽  
Chloroplast Translation ◽  
Membrane Bound

We have previously observed (Klein, R. R., and J. E. Mullet, 1986, J. Biol. Chem. 261:11138-11145) that translation of two 65-70-kD chlorophyll a-apoproteins of Photosystem I (gene products of psaA and psaB) and a 32-kD quinone-binding protein of Photosystem II (gene product of psbA) was not detected in plastids of dark-grown barley seedlings even though transcripts for these proteins were present. In the present study it was found that nearly all of the psaA-psaB transcripts in plastids of dark-grown plants were associated with membrane-bound polysomes. Membrane-associated polysomes from plastids of dark-grown plants synthesized the 65-70-kD chlorophyll a-apoproteins at low levels when added to a homologous in vitro translation extract capable of translation elongation. However, when etioplast membranes were disrupted with detergent, in vitro synthesis of the 65-70-kD chlorophyll a-apoproteins increased to levels observed with polysomes of plastids from illuminated plants. These results suggest that synthesis of the chlorophyll a-apoproteins of Photosystem I is arrested on membrane-bound polysomes at the level of polypeptide chain elongation. In addition to the selective activation of chlorophyll a-apoprotein translation, illumination also caused an increase in chloroplast polysomes (membrane-associated and stromal) and induced a recruitment of psbA and rbcL transcripts into chloroplast polysomes. These results indicate that in conjunction with the selective activation of chlorophyll a-apoprotein elongation, illumination also caused a general stimulation of chloroplast translation initiation.

The Effect of Deoxycholate-Treatment to the Photoreactions of the Active Pigments in Photosynthesis

1976 ◽  
Vol 31 (1-2) ◽  
pp. 64-67 ◽  
Author(s):  
Günter Döring
Keyword(s):  
Photosystem Ii ◽  
Chlorophyll A ◽  
Photosystem I ◽  
Electron Flow ◽  
Heavy Fraction ◽  
Sodium Ascorbate ◽  
Linear Electron ◽  
System P ◽  
Heat Treated ◽  
Donor System

Abstract In the heavy fraction of deoxycholate-treated spinach chloroplasts the chlorophyll an activity is high and the chlorophyll aI activity is low when no artificial electron donor is added. The addition of the photosystem I donor system N-methyl-phenazonium sulphate plus sodium ascorbate (PMS + Asc) leads to a complete reactivation of the chlorophyll aI reaction. The addition of the photo­system II donor system p-benzohydroquinone plus sodium ascorbate (HQ + Asc) leads to an inhibition of the chlorophyll aII activity. From these results we conclude: 1. Besides an interruption of the linear electron flow between the two photosystems deoxycholate-treatment leads to a block of the electron flow from water to photosystem II. 2. In deoxycholate-treated chloroplasts the linear electron flow in photosystem II just like in Triswashed, heat-treated or aged chloroplasts, is replaced by a cyclic one.

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