2009
DOI: 10.1111/j.1744-7909.2009.00816.x
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Polyamine Accumulation in Transgenic Tomato Enhances the Tolerance to High Temperature Stress

Abstract: Polyamines play an important role in plant response to abiotic stress. S-adenosyl-l-methionine decarboxylase (SAMDC) is one of the key regulatory enzymes in the biosynthesis of polyamines. In order to better understand the effect of regulation of polyamine biosynthesis on the tolerance of high-temperature stress in tomato, SAMDC cDNA isolated from Saccharomyces cerevisiae was introduced into tomato genome by means of Agrobacterium tumefaciens through leaf disc transformation. Transgene and expression was confi… Show more

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Cited by 203 publications
(95 citation statements)
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“…SAMDC is one of the pivotal regulatory enzymes involved in biosynthesis of these compounds. Cheng et al (2009) reported that transgenic tomatoes carrying the SAMDC gene from Saccharomyces cerevisiae produced 1.7-2.4 times more polyamines and therefore showed enhanced tolerance to high temperatures as compared to the control plants. Similarly to cold and heat stresses, ultraviolet B (UV-B, 280-320 nm) causes both the production and accumulation of toxic ROS.…”
Section: Applicable Tomato Transformationmentioning
confidence: 99%
“…SAMDC is one of the pivotal regulatory enzymes involved in biosynthesis of these compounds. Cheng et al (2009) reported that transgenic tomatoes carrying the SAMDC gene from Saccharomyces cerevisiae produced 1.7-2.4 times more polyamines and therefore showed enhanced tolerance to high temperatures as compared to the control plants. Similarly to cold and heat stresses, ultraviolet B (UV-B, 280-320 nm) causes both the production and accumulation of toxic ROS.…”
Section: Applicable Tomato Transformationmentioning
confidence: 99%
“…The metabolism of polyamines in plant tissues is subject to strict regulation, and polyamine levels in plant roots change upon exposure to abiotic stress such as salt, drought, low and high temperature, heavy metals (Cu, Cr, Fe, and Ni), and oxidative stresses (Liu et al, 2005;Cheng et al, 2009;Wimalasekera et al, 2011;Tavladoraki et al, 2012).…”
mentioning
confidence: 99%
“…A lot of research has pointed out that introduction of a broad range of genes involved in polyamine biosynthesis, originating from various sources-both plants and animals-has resulted in improved tolerance to diverse stresses in such plants as tobacco, tomato or rice (including osmotic, salt stresses, heat, freezing, drought) (Alćazar et al 2010). Cheng et al (2009) confirmed that tomato plants with overexpression of SAMDC gene (SAM decarobxylase, catalyses the synthesis of S-adenosylmethionine, a substrate in polyamine formation) from Saccharomyces cerevisiae showed better tolerance to HT in comparison to WT plants. Transgenic lines were characterized by a high level of polyamine accumulation (1.7-2.4 times more than under normal conditions).…”
Section: Polyaminesmentioning
confidence: 61%