Developmental and circadian pattern of rubisco activase mRNA accumulation in apple plants

Watillon, Bernard; Kettmann, Richard; Boxus, P.; Burny, Arsène

doi:10.1007/bf00019298

Cited by 49 publications

(37 citation statements)

References 17 publications

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“…CAT2 mRNA is most abundant in leaves and is found in all green (photosynthesizing) organs. CAT2 also exhibits a circadian rhythm in mRNA abundance with peak abundance during the early subjective morning (Zhong et al, 1994), as is seen with photosynthetic genes such as CAB (Kay and Millar, 1993;Piechulla, 1993;McClung and Kay, 1994), RBCS (McClung, 1993), and RCA (Martino-Catt and Ort, 1992;Pilgrim and McClung, 1993;Watillon et al, 1993). Photosynthetic capacity itself peaks in the subjective morning (Sweeney, 1987).…”

Section: Rlbsfcmentioning

confidence: 99%

Catalase Is Encoded by a Multigene Family in Arabidopsis thaliana (L.) Heynh

et al. 1996

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The catalase multigene family in Arabidopsis includes three genes encoding individual subunits that associate to form at least six isozymes that are readily resolved by nondenaturing gel electrophoresis. CATl and CAT3map to chromosome 1 , and CAT2maps to chromosome 4. The nucleotide sequences of the three coding regions are 70 to 72% identical. The amino acid sequences of the three catalase subunits are 75 to 84% identical and 87 to 94% similar, considering conservative substitutions. Both the individual isozymes and the individual subunit mRNAs show distinct patterns of spatial (organ-specific) expression. Six isozymes are detected in flowers and leaves and two are seen in roots. Similarly, mRNA abundance of the three genes varies among organs. All three mRNAs are highly expressed in bolts, and CAT2 and CAT3 are highly expressed in leaves.

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Section: Rlbsfcmentioning

confidence: 99%

Catalase Is Encoded by a Multigene Family in Arabidopsis thaliana (L.) Heynh

et al. 1996

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“…The RCA gene is expressed almost entirely in the green parts of the plant in most plant species and is developmentally regulated by leaf age and light (Watillon et al, 1993;Liu et al, 1996). In tomatoes (Solanum lycopersicum), apples (Malus domestica), Arabidopsis, and rice, the mRNA levels of the RCA gene showed cyclic variations during the day/night period (Martino-Catt and Ort, 1992;Watillon et al, 1993;Liu et al, 1996;To et al, 1999). Diversity in gene expression is one of the mechanisms underlying phenotypic diversity among individuals.…”

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confidence: 99%

Characterization of Rubisco Activase Genes in Maize: An α-Isoform Gene Functions alongside a β-Isoform Gene

et al. 2014

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Rubisco activase (RCA) catalyzes the activation of Rubisco in vivo and plays a crucial role in regulating plant growth. In maize (Zea mays), only b-form RCA genes have been cloned and characterized. In this study, a genome-wide survey revealed the presence of an a-form RCA gene and a b-form RCA gene in the maize genome, herein referred to as ZmRCAa and ZmRCAb, respectively. An analysis of genomic DNA and complementary DNA sequences suggested that alternative splicing of the ZmRCAb precursor mRNA (premRNA) at its 39 untranslated region could produce two distinctive ZmRCAb transcripts. Analyses by electrophoresis and matrix-assisted laser desorption/ionization-tandem time-of-flight mass spectrometry showed that ZmRCAa and ZmRCAb encode larger and smaller polypeptides of approximately 46 and 43 kD, respectively. Transcriptional analyses demonstrated that the expression levels of both ZmRCAa and ZmRCAb were higher in leaves and during grain filling and that expression followed a specific cyclic day/night pattern. In 123 maize inbred lines with extensive genetic diversity, the transcript abundance and protein expression levels of these two RCA genes were positively correlated with grain yield. Additionally, both genes demonstrated a similar correlation with grain yield compared with three C 4 photosynthesis genes. Our data suggest that, in addition to the b-form RCA-encoding gene, the a-form RCA-encoding gene also contributes to the synthesis of RCA in maize and support the hypothesis that RCA genes may play an important role in determining maize productivity.

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“…Data gathered in several species indicate that the expression of RCA is organ-specific, developmentally regulated according to leaf age, and light-inducible (Zielinski et al, 1989;Rundle and Zielinski, 1991;Watillon et al, 1993). The expression of RCA of several species, including Arabidopsis thaliana (Pilgrim and McClung, 1993), tomato (Martino-Catt and Ort, 1992), and apple (Watillon et al, 1993), is regulated by the circadian clock, and in Arabidopsis and tomato this clock regulation has been shown by nuclear run-on analysis to include a transcriptional component (Martino-Catt and Ort, 1992;Pilgrim and McClung, 1993). It is likely that these complex expression patterns reflect the combined results of the interactions of multiple trans-acting protein factors with multiple cognate cis-acting DNA elements (Benfey et al, 1990;Schindler and Cashmore, 1990;Schindler et al, 1992).…”

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confidence: 99%