Passive Components in the Ion Absorption of the Plant II. The Zonal Water Flow, Ion Passage, and Pore Size in Roots of <i>Vicia Faba</i>

Hylmö, Bertil

doi:10.1111/j.1399-3054.1958.tb08473.x

Cited by 42 publications

(11 citation statements)

References 24 publications

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“…The transport of ions from a bathing solution to the top of a plant has been described as a passive (7,8,18,19,22,23,28) and active (2,3,17,26,27) process. Brouwer (3) states that at least 70 to 85 % of the ions appearing in the tops of plants go through an active process, i.e., "owing to a mechanism controlled or started by metabolism lands into the transpiration stream".…”

Section: Introductionmentioning

confidence: 99%

Kinetics of rubidium absorption & translocation by barley

Fried¹,

Oberländer²,

Noggle³

1961

Plant Physiol.

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Section: Introductionmentioning

confidence: 99%

Kinetics of rubidium absorption & translocation by barley

Fried¹,

Oberländer²,

Noggle³

1961

Plant Physiol.

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“…Hylmo 1953Hylmo , 1955Hylmo , 1958. Such a model could explain the decrease in selectivity, which should be quantitatively related to the effect of transpiration on total uptake.…”

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confidence: 99%

Transpiration and the Selective Uptake of Potassium by Barley Seedlings (Hordeum Vulgare Cv. Bolivia)

Pitman¹

1965

Aust. Jnl. Of Bio. Sci.

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SummarySelective potassium uptake by barley seedlings decreases with increased solution concentrations above 20 m-equiv /1. This decrease is shown to be due to an action of transpiration. Total uptake of potassium and sodium was unaffected by transpiration, but increased transpiration rate increased sodium uptake and decreased potassium uptake. These changes in sodium and potassium content are difficult to explain in terms of "passive" metabolic components of uptake. It is suggested that sodium and potassium uptake to the shoot is controlled by active anion transport and that water flux acts on movement of sodium and potassium through the root to the site of active transport.

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“…Ion uptake from a nutrient solution into the roots and to the shoots of a plant has been described as an active process, dependent upon the metabolic activity of the root cells (4,7,34), and as a passive process dependent upon mass flow in the transpiration stream (11,17,18,19,22). The opposing viewpoints were recently reviewed by Russell and Barber (33).…”

mentioning

confidence: 99%