Photosynthetic electron transport controls expression of the high light inducible gene in the cyanobacterium Synechococcus elongatus strain PCC 7942

The hliA gene of Synechococcus, encoding a photoprotective high light inducible polypeptide, is up-regulated by high light (HL) or low intensity blue/UV-A light (BL). hliA expression was found to be up-regulated by KCN in low light (LL) (but not in the dark), and up-regulation in HL, BL, and LL (with KCN) was inhibited by 2,5-dibromo-3-methyl-6-isopropyl-benzoquinone. A working hypothesis is proposed whereby up-regulation is in response to the reduced state of cytochrome b(6)f or a carrier beyond in photosynthesis. Modest up-regulation occurs in LL by treatment with 3-(3,4-dichlorophenyl)-1,1-dimethylurea, but this is related to effects on hliA mRNA stability rather than on transcription.

Medienart:

Artikel

Erscheinungsjahr:

2004

Erschienen:

2004

Enthalten in:

Zur Gesamtaufnahme - volume:45

Enthalten in:

Plant & cell physiology - 45(2004), 5 vom: 15. Mai, Seite 651-8

Sprache:

Englisch

Beteiligte Personen:

Salem, Kavitha [VerfasserIn]
van Waasbergen, Lorraine G [VerfasserIn]

Themen:

29096-93-3
9035-40-9
9I3SDS92WY
Bacterial Proteins
Cytochrome b6f Complex
Dibromothymoquinone
Diuron
High light-inducible protein, cyanobacteria
Journal Article
Light-Harvesting Protein Complexes
MQD255M2ZO
Potassium Cyanide
RNA, Messenger
Research Support, Non-U.S. Gov't
Research Support, U.S. Gov't, Non-P.H.S.

Anmerkungen:

Date Completed 09.09.2004

Date Revised 13.05.2019

published: Print

Citation Status MEDLINE

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM148588468