low-salt roots

Spanish translation: raíces con baja concentración de sal

14:31 Sep 17, 2015

English to Spanish translations [PRO]
Science - Biology (-tech,-chem,micro-) / biochemistry

English term or phrase: low-salt roots

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The mechanism of symplasmic transport of solutes seems to be chiefly diffusional,
facilitated by radial water flux. Inhibition of cytoplasmic streaming may have no effect
on the radial transport of potassium (Glass and Dunlop, 1979). On the other hand, in
radial transport of phosphate, various metabolic steps such as incorporation into
organic compounds (ATP, sugar phosphates) are involved before it is released as
inorganic phosphate into the xylem (Sasaki et al,, 1987). During radial transport of ions
competition occurs between accumulation in the vacuoles and transport in the symplasm.
This competition depends on the mineral nutrient and its concentration in the
vacuoles of root cells along the pathway. At low internal concentrations ('low-salt'
roots), in short-term experiments this competition is reflected by a typical high
accumulation rate in the roots and a delay in the translocation of the ions from the roots
to the shoots of plants which originally were low in internal concentrations of the ion
being investigated (Fig. 2.33). As a result of this competition, when the supply of a
mineral nutrient is suboptimal the roots usually have higher contents of the particular
nutrient than the shoot ('restricted translocation'). In long-term studies, this regulation
mechanism is in part responsible for the often observed shift in the relative growth rates
of roots and shoots in favor of the roots (Section 14.7).

Both low-salt roots and salt-saturated roots have been used to study the processes of transport at the cellular level, and salt-saturated roots have been used to ...

Computing techniques are used to simulate the course of uptake of K+, Na+, and Cl− by low-salt roots. Measurements of the fluxes of these ions in high-salt roots are used to calculate membrane permeabilities, which are then used to calculate cell uptake. In this way it is possible to test the predictive value of different models for the location of sites of salt uptake in the cell.

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Spanish translation:raíces con baja concentración de sal

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nahuelhuapi
Argentina
Local time: 09:34

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raíces con baja concentración de sal

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raíces con baja concentración de sal

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nahuelhuapi
Argentina
Local time: 09:34
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Spanish translation: raíces con baja concentración de sal

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