Article
A pea antisense gene for the chloroplast stromal processing peptidase yields seedling lethals in Arabidopsis: survivors show defective GFP import in vivo.
The Plant journal : for cell and molecular biology - 1 Jun 2003
Zhong Rong, Wan Jiangxin, Jin Rongguan, Lamppa Gayle
Abstract excerpt
The stromal processing peptidase (SPP) of chloroplasts is a metalloendopeptidase that cleaves in vitro a broad range of precursor substrates. Here, we have investigated SPP's role in vivo. Two pea cDNA antisense constructs encoding either full-length SPP (AS4.0) or its N-terminal half (AS2.2) are introduced into Arabidopsis, which contains one gene for SPP that codes for one isoform. Our analyses show that AS4.0...
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