Arsenic accumulation and speciation in rice are affected by root aeration and variation of genotypes

Root aeration, arsenic (As) accumulation, and speciation in rice of 20 different genotypes with regular irrigation of water containing 0.4 mg As l -1 were investigated. Different genotypes had different root anatomy demonstrated by entire root porosity (ranging from 12.43% to 33.21%), which was sign...

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Veröffentlicht in:	Journal of experimental botany 2011-05, Vol.62 (8), p.2889-2898
Hauptverfasser:	Wu, Chuan, Ye, Zhihong, Shu, Wensheng, Zhu, Yongguan, Wong, Minghung
Format:	Artikel
Sprache:	eng
Schlagworte:	Air Arsenic Arsenic - metabolism Biological and medical sciences Biomass Chromatography, High Pressure Liquid Fundamental and applied biological sciences. Psychology Genetic Variation Genotype Genotypes Grains Oryza - genetics Oryza - growth & development Oryza - metabolism Oxygen Oxygen - metabolism Plant physiology and development Plant roots Plant Roots - anatomy & histology Plant Roots - metabolism Plants Porosity RESEARCH PAPER Rice Speciation Spectrophotometry, Atomic Straw
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Zusammenfassung:	Root aeration, arsenic (As) accumulation, and speciation in rice of 20 different genotypes with regular irrigation of water containing 0.4 mg As l -1 were investigated. Different genotypes had different root anatomy demonstrated by entire root porosity (ranging from 12.43% to 33.21%), which was significantly correlated with radial oxygen loss (ROL) (R=0.64, P
ISSN:	0022-0957 1460-2431
DOI:	10.1093/jxb/erq462