Diurnal Fluctuations in Steady-State mRNAs of Certain Chloroplast-Encoded Photosynthesis-Related Genes in Rice

Grover, Monendra; Maheshwari, S. C.; Tyagi, Akhilesh K.

doi:10.1007/bf03262992

Cited by 2 publications

(2 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In some higher plants and cyanobacteria, transcript levels of photosynthetic genes correlate with light levels throughout diel periods, in which transcript abundance is lowest in the dark (i.e., early morning/night) and highest around midday (Grover et al. , Nakahira et al. , Garczarek et al.…”

Section: Discussionmentioning

confidence: 99%

“…Most of these changes occur during the photoperiod, either as a direct result of changes in light or indirectly from an innate circadian rhythm (Samuelsson et al 1983, Van Dolah et al 2007, Sorek and Levy 2012. In some higher plants and cyanobacteria, transcript levels of photosynthetic genes correlate with light levels throughout diel periods, in which transcript abundance is lowest in the dark (i.e., early morning/ night) and highest around midday (Grover et al 1996, Nakahira et al 1998, Garczarek et al 2001). In dinoflagellates, circadian control of nuclear transcripts appears limited (Okamoto and Hastings 2003b), but some differences do occur over a light: dark cycle (Van Dolah et al 2007).…”

mentioning

confidence: 99%

See 1 more Smart Citation

Transcript patterns of chloroplast‐encoded genes in cultured Symbiodinium spp. (Dinophyceae): testing the influence of a light shift and diel periodicity

McGinley

Suggett

Warner

2013

Journal of Phycology

View full text Add to dashboard Cite

Microalgae possess numerous cellular mechanisms specifically employed for acclimating the photosynthetic pathways to changes in the physical environment. Despite the importance of coral-dinoflagellate symbioses, little focus has been given as to how the symbiotic algae (Symbiodinium spp.) regulate the expression of their photosynthetic genes. This study used real-time PCR to investigate the transcript abundance of the plastid-encoded genes, psbA (encoding the D1 protein of photosystem II) and psaA (encoding the P700 protein in photosystem I), within the cultured Symbiodinium ITS-2 (internal transcribed spacer region) types A20 and A13. Transcript abundance was monitored during a low to high-light shift, as well as over a full diel light cycle. In addition, psaA was characterized in three isolates (A20, A13, and D4-5) and noted as another example of a dinoflagellate plastid gene encoded on a minicircle. In general, the overall incongruence of transcript patterns for both psbA and psaA between the Symbiodinium isolates and other models of transcriptionally controlled chloroplast gene expression (e.g., Pisum sativum [pea], Sinapis alba [mustard seedling], and Synechocystis sp. PCC 6803 [cyanobacteria]) suggests that Symbiodinium is reliant on posttranscriptional mechanisms for homeostatic regulation of its photosynthetic proteins.

show abstract

Section: Discussionmentioning

confidence: 99%