Homo-Phytochelatins Are Synthesized in Response to Cadmium in Azuki Beans
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چکیده
منابع مشابه
Earthworms Produce phytochelatins in Response to Arsenic
Phytochelatins are small cysteine-rich non-ribosomal peptides that chelate soft metal and metalloid ions, such as cadmium and arsenic. They are widely produced by plants and microbes; phytochelatin synthase genes are also present in animal species from several different phyla, but there is still little known about whether these genes are functional in animals, and if so, whether they are metal-...
متن کاملPhytochelatins in Cadmium-Sensitive and Cadmium-Tolerant Silene vulgaris (Chain Length Distribution and Sulfide Incorporation).
In response to a range of Cd concentrations, the root tips of Cd-tolerant plants of Silene vulgaris exhibit a lower rate of PC production accompanied by a lower rate of longer chain PC synthesis than those of Cd-sensitive plants. At the same Cd exposure level, stable PC-Cd complexes are more rapidly formed in the roots of Cd-sensitive plants than in those of tolerant plants. At an equal PC conc...
متن کاملPhytochelatins in Cadmium-Sensitive and Cadmium-Tolerant Silene vulgaris' Chain Length Distribution and Sulfide lncorporation
In response to a range of Cd concentrations, the root tips of Cdtolerant plants of Silene vulgaris exhibit a lower rate of PC production accompanied by a lower rate of longer chain PC synthesis than those of Cd-sensitive plants. At the same Cd exposure level, stable PC-Cd complexes are more rapidly formed in the roots of Cd-sensitive plants than in those of tolerant plants. At an equal PC conce...
متن کاملLong-distance root-to-shoot transport of phytochelatins and cadmium in Arabidopsis.
Phytochelatin synthases (PCS) mediate cellular heavy-metal resistance in plants, fungi, and worms. However, phytochelatins (PCs) are generally considered to function as intracellular heavy-metal detoxification mechanisms, and whether long-distance transport of PCs occurs during heavy-metal detoxification remains unknown. Here, wheat TaPCS1 cDNA expression was either targeted to Arabidopsis root...
متن کاملPhytochelatins are involved in differential arsenate tolerance in Holcus lanatus.
Arsenate tolerance is conferred by suppression of the high-affinity phosphate/arsenate uptake system, which greatly reduces arsenate influx in a number of higher plant species. Despite this suppressed uptake, arsenate-tolerant plants can still accumulate high levels of As over their lifetime, suggesting that constitutive detoxification mechanisms may be required. Phytochelatins are thiol-rich p...
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ژورنال
عنوان ژورنال: Plant Physiology
سال: 2001
ISSN: 0032-0889,1532-2548
DOI: 10.1104/pp.126.3.1275