000			02704nam a22003137a 4500
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005			20250318100845.0
008			250318b |||||||| |||| 00| 0 eng d
022			_a0176-1617
040			_aMSU _bEnglish _cMSU _erda
050	0	0	_aQK711.2 JOU
100	1		_aWu, Qi _eauthor
245	1	0	_aHydrogen-rich water enhances cadmium tolerance in Chinese cabbage by reducing cadmium uptake and increasing antioxidant capacities _ccreated by Qi Wu, Nana Su, Jiangtao Cai, Zhenguo Shen and Jin Cui
264	1		_aAmsterdam: _bElsevier GmbH, _c2015.
336			_2rdacontent _atext _btxt
337			_2rdamedia _aunmediated _bn
338			_2rdacarrier _avolume _bnc
440			_aJournal of Plant Physiology _vVolume 175
520	3		_aThe aim of the present paper was to understand the specific mechanism of hydrogen-rich water (HRW) in alleviating cadmium (Cd) toxicity in Chinese cabbage (Brassica campestris spp. chinensis L.). Our results showed that the addition of 50% saturation HRW significantly alleviated the Cd toxic symptoms, including the improvement of both root elongation and seedling growth inhibition. These responses were consistent with a significant decrease of Cd accumulation in roots and shoots, which was further confirmed by the histochemical staining. Molecular evidence illustrated that Cd-induced up-regulations of IRT1 and Nramp1 genes, responsible for Cd absorption, were blocked by HRW. By contrast, Cd-induced up-regulation of the HMA3 gene, which regulates Cd sequestration into the root vacuoles, was substantially strengthened by HRW. Furthermore, compared with those in Cd stress alone, the expressions of HMA2 and HMA4, which function in the transportation of Cd to xylem, were repressed by co-treatment with HRW. HRW enhanced the activities of antioxidant enzymes, including superoxide dismutase, guaiacol peroxidase, catalase and ascorbate peroxidase. These results were further confirmed by the alleviation of oxidative damage, as indicated by the decrease of thiobarbituric acid reactive substances (TBARS) and reactive oxygen species (ROS) production. Taken together, these results suggest that the improvement of Cd tolerance by HRW was associated with reduced Cd uptake and increased antioxidant defense capacities. Therefore, the application of HRW may be a promising strategy to improve Cd tolerance of Chinese cabbage.
650			_aCadmium tolerance
650			_aCadmium uptake
650			_aChinese cabbage
700			_aSu, Nana _eco-author
700			_aCai, Jiangtao _eco-author
700			_aShen, Zhenguo _eco-author
700			_aCui, Jin _eco-author
856			_uhttps://doi.org/10.1016/j.jplph.2014.09.017
942			_2lcc _cJA
999			_c169342 _d169342