Cadmium translocation by contractile roots differs from that in regular, non-contractile roots
نویسندگان
چکیده
منابع مشابه
Calcium-sequestering vesicles and contractile flagellar roots.
The intracellular localization of calcium during contraction of striated flagellar roots of the green alga Tetraselmis subcordiformis was investigated using calcium pyroantimonate and calcium oxalate cytochemistry and energy-dispersive X-ray microanalysis. Vesicles (0.25 - 0.50 microns diameter) located in the anterior-most region of the cell are calcium-sequestering organelles. These vesicles ...
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Contractile roots (CRs) that pull shoots further down in the soil are a possible example of convergent evolution in two monocot families, the Agavaceae and the Asphodelaceae. The association between CRs, water uptake and habitat aridity was investigated for agaves, yuccas and aloes by assessing the occurrence of CRs and the amount of root contraction for glasshouse-grown plants with respect to ...
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متن کاملStriated flagellar roots: isolation and partial characterization of a calcium-modulated contractile organelle
We report the isolation of striated flagellar roots from the Prasinophycean green alga Tetraselmis striata using sedimentation in gradients of sucrose and flotation on gradients of colloidal silica. PAGE in the presence of 0.1% SDS demonstrates that striated flagellar roots are composed of a number of polypeptides, the most predominant one being a protein of 20,000 Mr. The 20,000 Mr protein ban...
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ژورنال
عنوان ژورنال: Annals of Botany
سال: 2015
ISSN: 0305-7364,1095-8290
DOI: 10.1093/aob/mcv051