Enhanced polyamine accumulation alters carotenoid metabolism at the transcriptional level in tomato fruit over-expressing spermidine synthase
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چکیده
منابع مشابه
Enhanced polyamine accumulation alters carotenoid metabolism at the transcriptional level in tomato fruit over-expressing spermidine synthase.
Polyamines are involved in crucial plant physiological events, but their roles in fruit development remain unclear. We generated transgenic tomato plants that show a 1.5- to 2-fold increase in polyamine content by over-expressing the spermidine synthase gene, which encodes a key enzyme for polyamine biosynthesis. Pericarp-columella and placental tissue from transgenic tomato fruits were subject...
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A vast number of studies have linked polyamines to numerous cellular functions but less is known about the possible physiological functions of the individual polyamines. The specific gene targeting technique has provided a new potential way to resolve this mystery. We generated two separate embryonic stem (ES) cell lines where either spermine synthase gene (SPMSy) or spermidine/spermine N-acety...
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Phytoene synthase from the bacterium Erwinia uredovora (crtB) has been overexpressed in tomato (Lycopersicon esculentum Mill. cv. Ailsa Craig). Fruit-specific expression was achieved by using the tomato polygalacturonase promoter, and the CRTB protein was targeted to the chromoplast by the tomato phytoene synthase-1 transit sequence. Total fruit carotenoids of primary transformants (T(0)) were ...
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ژورنال
عنوان ژورنال: Journal of Plant Physiology
سال: 2011
ISSN: 0176-1617
DOI: 10.1016/j.jplph.2010.07.003