PT Journal
AU Wang, Z
   Xu, Y
   Yang, Z
   Hou, H
   Jiang, G
   Kuang, T
TI Effect of Sodium Thiosulfate on the Depletion of Photosynthetic Apparatus in Cyanobacterium Synechocystis sp. PCC 6803 Cells Grown in the Presence of Glucose
SO Photosynthetica
PY 2002
BP 383
EP 387
VL 40
IS 3
DI 10.1023/A:1022675008517
WP https://ps.ueb.cas.cz/artkey/phs-200203-0017.php
DE allophycocyanin; chlorophyll; fluorescence; oxygen evolution; photosystems 1 and 2; phycobilisome; phycocyanin
SN 03003604
AB Fluorescence spectroscopy at 77 K showed that the application of glucose lead to the depletion of phycobilisomes (PBS) and photosystems (PS) 2 and 1, and that PS2 was more sensitive to glucose than PS1. The application of sodium thiosulfate, an effective scavenger of reactive oxygen intermediates, counteracted the effects of glucose. Sodium thiosulfate effectively protected photosynthetic apparatus, PS2, PS1, and PBS against glucose-induced depletion. Sodium thiosulfate showed strong capability to inhibit the disappearance of chlorophyll induced by glucose. At a relatively low concentration of glucose, the application of sodium thiosulfate can even be helpful for the assembly of photosynthetic apparatus. Hence the reactive oxygen species might be involved in the depletion of the photosynthetic apparatus in the cyanobacterium Synechocystis sp. PCC 6803 cells grown in the presence of glucose.
ER