The organisation and expression of the genes encoding the mitochondrial glycine decarboxylase complex and serine hydroxymethyltransferase in pea (Pisum sativum)

Turner, S.R., Hellens, R.P., Ireland, R., Ellis, N., & Rawsthorne, S. (1993) The organisation and expression of the genes encoding the mitochondrial glycine decarboxylase complex and serine hydroxymethyltransferase in pea (Pisum sativum). Molecular and General Genetics, 236(2-3), pp. 402-408.

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Abstract

Restriction fragment length polymorphisms have been used to determine the chromosomal location of the genes encoding the glycine decarboxylase complex (GDC) and serine hydroxymethyltransferase (SHMT) of pea leaf mitochondria. The genes encoding the H subunit of GDC and the genes encoding SHMT both show linkage to the classical group I marker i. In addition, the genes for the P protein of GDC show linkage to the classic group I marker a. The genes for the L and T proteins of GDC are linked to one another and are probably situated on the satellite of chromosome 7. The mRNAs encoding the five polypeptides that make up GDC and SHMT are strongly induced when dark-grown etiolated pea seedlings are placed in the light. Similarly, when mature plants are placed in the dark for 48 h, the levels of both GDC protein and SHMT mRNAs decline dramatically and then are induced strongly when these plants are returned to the light. During both treatments a similar pattern of mRNA induction is observed, with the mRNA encoding the P protein of GDC being the most rapidly induced and the mRNA for the H protein the slowest. Whereas during the greening of etiolated seedlings the polypeptides of GDC and SHMT show patterns of accumulation similar to those of the corresponding mRNAs, very little change in the level of the polypeptides is seen when mature plants are placed in the dark and then re-exposed to the light.

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ID Code: 71613
Item Type: Journal Article
Refereed: Yes
Additional Information: Cited By (since 1996):33
Export Date: 6 May 2014
Source: Scopus
PubMed ID: 8094886
Additional URLs:
Keywords: Gene expression (glycine decarboxylase serine hydroxymethyltransferase), Pisum sativum, RFLP mapping
DOI: 10.1007/BF00277140
ISSN: 1432-1874
Divisions: Current > QUT Faculties and Divisions > Science & Engineering Faculty
Deposited On: 15 May 2014 02:55
Last Modified: 15 May 2014 02:55

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