Identification of the Silicon Form in Xylem Sap of Rice
2005年2月1日 · Rice (Oryza sativa L.) is a typical silicon (Si)-accumulating plant, but the mechanism responsible for the translocation from the root to the shoot is poorly understood. In this study, the form of Si in xylem sap was identified …
Characterization of the Silicon Uptake System and Molecular …
2004年10月15日 · Rice (Oryza sativa L. cv Oochikara) is a typical silicon-accumulating plant, but the mechanism responsible for the high silicon uptake by the roots is poorly understood. We characterized the silicon uptake system in rice roots by using a …
Uptake system of silicon in different plant species
2005年3月7日 · The Si concentration of xylem sap in rice was 20- and 100-fold higher than that in cucumber and tomato, respectively. In contrast to rice, the Si concentration in the xylem sap was lower than that in the external solution in cucumber and tomato.
Identification of the silicon form in xylem sap of rice (Oryza
Rice (Oryza sativa L.) is a typical silicon (Si)-accumulating plant, but the mechanism responsible for the translocation from the root to the shoot is poorly understood. In this study, the form of Si in xylem sap was identified by (29)Si-nuclear magnetic resonance (NMR) spectroscopy.
Nitrogen movement through the xylem vessels and sieve tubes in rice plants was studied using xylem and phloem sap analysis in combination with stable and radioactive nitrogen isotope techniques. More than 90% of nitrogen was translocated in the sieve tubes of rice plants as amino acids. When 15N (99.6
A defensin-like protein drives cadmium efflux and allocation in rice ...
2018年2月13日 · Here, we identify a rice quantitative trait locus we name cadmium (Cd) accumulation in leaf 1 (CAL1), which encodes a defensin-like protein. CAL1 is expressed preferentially in root exodermis and...
Phloem Sap Composition: What Have We Learnt from …
Phloem sap transport is essential for plant nutrition and development since it mediates redistribution of nutrients, metabolites and signaling molecules. However, its biochemical composition is not so well-known because phloem sap sampling is ...
Detection and characterization of nitrogen circulation through the ...
Nitrogen movement through the xylem vessels and sieve tubes in rice plants was studied using xylem and phloem sap analysis in combination with stable and radioactive nitrogen isotope techniques. More than 90% of nitrogen was translocated in the sieve tubes of …
Cadmium concentrations in the phloem sap of rice plants
2011年11月22日 · To obtain direct evidence for the translocation of cadmium (Cd) via the phloem, we measured the Cd concentrations in the phloem sap of 5-week-old rice plants (Oryza sativa L. cv. Kantou) treated with a nutrient solution containing Cd.
Xylem and phloem transport of Cd, Zn and Fe into the grains of rice ...
2010年7月16日 · To explore their transport, the concentrations of Cd, Zn and Fe in xylem and phloem saps and in different tissues were determined at four (10th-leaf, 14th-leaf, early grain-filling, mature) stages using semi-dwarf rice plants (cv. Kantou) grown on soil contaminated with Cd fourfold higher than average Cd contamination in Japan.