Words similar to thylakoid
Example sentences for: thylakoid
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LHCPs were not detected in the interior of the chloroplast, although cell fractionation recovered a substantial amount in a soluble form [ 14 ] . In control cells, the amount of Chl and thylakoid membranes increased rapidly when cells were illuminated, and LHCPs were detected in thylakoid membranes throughout the chloroplast (Fig.
This result, obtained with cells incubated at 25°C, was consistent with localization of LHCPs on envelope membranes in cells immediately after initiation of thylakoid biogenesis at 38°C [ 16 ] . At the higher temperature, not all the newly synthesized LHCPs were incorporated into envelope membranes, and the excess accumulated in cytosolic vacuoles [ 16 17 ] . This evidence for the envelope as the site of initial interaction of LHCPs with Chl was also supported by proliferation of envelope-derived vesicles in dark-grown Chlamydomonas cells exposed to only a few minutes of light [ 18 ] and the lack of thylakoids in a mutant of Arabidopsis deficient in a protein apparently required for formation of vesicles from the inner membrane of the envelope [ 19 ] .
An important role of Chl b was further revealed by experiments in which newly synthesized LHCPs were detected by pulse-labeling in Chl b -less mutant plants but the proteins were not recovered in chloroplasts isolated from these plants [ 4 ] . These Chl b -less plants did not accumulate several of the LHCPs, in particular Lhcb1, Lhcb6 and Lhca4 [ 5 ] . Chl b was not detected in plants exposed to intermittent light (cycles of 2 min of light and 98 min of darkness), which accumulated only small amounts of Chl a and thylakoid membranes [ 6 7 ] . Wild-type plants treated in this way accumulated only one LHCP (Lhcb5), while Chl b -less mutants exposed to intermittent light lacked all LHCPs [ 8 ] . In complementary fashion, Chl b did not accumulate when synthesis of LHCPs was inhibited [ 9 ] . When bean plants exposed to intermittent light were treated with chloramphenicol to inhibit synthesis of proteins on chloroplast ribosomes, Chl
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