ALBERT — All Library Books, journals and Electronic Records Telegrafenberg

Hits per page

hit 1 - 1 | 1 hit

Select All Export

Electronic Resource

Solution flow in tubular semipermeable membranes (1972)

Eschrich, Walter ; Evert, Ray F. ; Young, John H.

Springer

Planta 107 (1972), S. 279-300

add to mindlist on the mindlist

Details

ISSN: 1432-2048

Source: Springer Online Journal Archives 1860-2000

Topics: Biology

Notes: Summary Solution flow in tubular semipermeable membranes was studied as a model for assimilate transport in sieve tubes. A mass flow of solution was demonstrated both in closed turgid tubes and in open tubes without turgor pressure. These results can be explained in terms of hydrostatic and osmotic pressure differences across the semipermeable membrane without consideration of a decrease in hydrostatic pressure along the direction of solution flow. A theoretical model based on nonequilibrium thermodynamics is developed that is in fairly good quantitative agreement with the experimental results. Münch's original experiment demonstrating solution flow is analyzed and shown not to depend on a gradient of hydrostatic pressure but rather to depend on the same driving forces operative in these experiments. On the basis of these findings a “volume-flow” mechanism of phloem transport is proposed.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF00386391

	Location	Call Number	Expected	Availability

Others were also interested in ...

Paper (German National Licenses)

Fulltext

hit 1 - 1 | 1 hit