EurekaMag.com logo
+ Site Statistics
References:
48,253,228
Abstracts:
22,798,842
+ Resolve Accession
+ Subscribe to Site Feeds
EurekaMag Most Shared ContentMost Shared
EurekaMag PDF Full Text ContentPDF Full Text
+ PDF Full Text
Request PDF Full TextRequest PDF Full Text
Submit PDF Full TextSubmit PDF Full Text
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter
Follow on Google+Follow on Google+
Follow on LinkedInFollow on LinkedIn

+ Translate

The chlB gene encoding a subunit of light-independent protochlorophyllide reductase is edited in chloroplasts of conifers


, : The chlB gene encoding a subunit of light-independent protochlorophyllide reductase is edited in chloroplasts of conifers. Current genetics1(4): 343-347

ChlB is one of three chloroplast genes shown so far to be required for light-independent chlorophyll synthesis. It occurs in some algae, lower plants, and gymnosperms, but not in angiosperms. We have demonstrated, for the first time in conifer chloroplasts, the presence of two internal C to U editing sites in this transcript. In the chlB transcript of Pinus sylvestris, the editing of the second position in a CCG codon leads to an amino-acid substitution from proline to leucine. Editing of a nearby CGG codon, resulting in an arginine to tryptophan substitution, has also been observed. The nucleotide sequence of this region has been compared with other species of gymnosperms. Out of seven species analysed, editing at both sites has only been detected in spruce, while in Larix only the editing which results in the Arg to Trp substitution was found. In other cases, both leucine and tryptophan are encoded by cpDNA, suggesting that conservation of these amino acids, through encoding by DNA or by editing of the RNA, is critical for the protein function. Transcripts are partially edited at the CGG codon and the relative abundance of cDNA molecules with the edited C is species-specific. The possible involvement of RNA editing in the regulation of gene expression in different organs of pine seedlings is discussed.

Order PDF Full Text

Close
Close

Click here to order any other PDF Full Text


Accession: 002980295

DOI: 10.1007/s002940050214

PDF Full Text: The chlB gene encoding a subunit of light-independent protochlorophyllide reductase is edited in chloroplasts of conifers


Submit PDF Full Text

No spam - Every submission is manually reviewed

Due to poor quality, we do not accept files from Researchgate

Submitted PDF Full Texts will always be free for everyone
(We only charge for PDFs that we need to acquire)

Select a PDF file:
Close
Close

Other references

Garrett, W. D., 1967: Damping of capillary waves at the air-sea interface by oceanic surface -active material. The damping rates of capillary waves (wavelength = 0.52 cm) were measured on fresh seawater sampled under various oceanographic conditions. The collected water contained varying quantities of surface-active organic materials capable of adsorbing a...

Enk, Alexander H., 1995: Langerhans cells and the epidermal cytokine milieu in contact sensitivity. Journal of Cellular Biochemistry Supplement 0(21A): 8

E.L.kany, M.H.; Dugle, J.R., 1972: DNA content in relation to phylogeny of selected boreal forest plants. DNA contents of 41 boreal forest gymnosperm and angiosperm taxa, including many coniferous and hardwood tree species, were estimated cytophotometrically and are tabulated. Conifers contained more DNA than monocotyledons and dicotyledons, and there...

Mills, Stephanie C., 2013: Late Pleistocene glaciation in Southern Africa. At present, south of the volcanoes of East Africa there are no glaciers present in Africa. However, researchers have suggested that glaciers may have existed during the Pleistocene in the mountain regions of the Western Cape, Eastern Cape and Leso...

Rassart E.; Jolicoeur P., 1980: Restriction endo nuclease mapping of unintegrated viral dna of b tropic and n tropic balb c murine leukemia virus. Unintegrated linear and closed circular DNA of B- and N-tropic endogenous BALB/c murine leukemic virus (MuLV) were extracted from newly infected mouse cells and cleaved with EcoRI, XhoI, PvuI, HindIII, SalI, XbaI, KpnI, SmaI and PstI restriction e...

Vukov, K., 1971: Evaluation of the temperature influence during prolonged storage of sugar beets. Zucker 24 (20) 626-631

Anonymous, 1989: Cyclohexanone. Iarc Monographs on the Evaluation of Carcinogenic Risks to Humans 47: 157-169

Klemetsen, A., 1970: Check method census of Coot, Fulica atra and Moorhen, Gallinula chloropus, in Ostensjovann, south Norway, 1967 1968. Nytt Mag. Zool.: 18: 199-207,2 pis

Stanley, H.M., 1899: 'the Evolution Of Modesty.'. Science 9(224): 553-554

Conklin, M., 1994: Preparing a for-profit war plan helps protect market share. Health Care Strategic Management 12(10): 1, 22-3