001     38398
005     20180210131131.0
024 7 _ |2 DOI
|a 10.1071/FP03231
024 7 _ |2 WOS
|a WOS:000221249800009
037 _ _ |a PreJuSER-38398
041 _ _ |a eng
082 _ _ |a 580
084 _ _ |2 WoS
|a Plant Sciences
100 1 _ |a Gould, N.
|b 0
|0 P:(DE-HGF)0
245 _ _ |a Solute is imported to elongating root cells of barley as a pressure driven flow of solution
260 _ _ |a Collingwood, Victoria
|b CSIRO Publ.
|c 2004
300 _ _ |a 391 - 397
336 7 _ |a Journal Article
|0 PUB:(DE-HGF)16
|2 PUB:(DE-HGF)
336 7 _ |a Output Types/Journal article
|2 DataCite
336 7 _ |a Journal Article
|0 0
|2 EndNote
336 7 _ |a ARTICLE
|2 BibTeX
336 7 _ |a JOURNAL_ARTICLE
|2 ORCID
336 7 _ |a article
|2 DRIVER
440 _ 0 |a Functional Plant Biology
|x 1445-4408
|0 9141
|v 31
500 _ _ |a Record converted from VDB: 12.11.2012
520 _ _ |a This work relates solute import to elongating root cells in barley to the water relations of the symplastic pathway under conditions of varied plant K+ status. K+ is a major constituent of phloem sieve element (SE) sap, and as an osmoticum, it is believed to have a role in maintaining SE hydrostatic pressure and thus sap flow from source to sink tissue. The hypothesis that the solute import to elongating root cells is linked to pressure driven flow from the sieve tube is examined.Plants were grown in solutions containing either 0.05 m M (low K) or 2.05 m M (high K) K+ concentration. Solute import to the root elongation zone was estimated from biomass accumulation over time accounting for respiration and root elongation rate. SE sap K+ concentration was measured using X-ray microanalyses and osmotic pressure by picolitre osmometry. SE hydrostatic pressure was measured directly with a pressure probe glued onto an excised aphid stylet. Elongating root cell hydrostatic pressure was measured using a cell pressure probe.The low-K plants had lower SE K+ concentration and SE hydrostatic pressure compared to the high-K plants, but the elongating root cell hydrostatic pressure was similar in both treatments, thus the pressure difference between the SE and elongating root cells was less in the low-K plants compared to the high-K plants.The solute import rate to elongating root cells was lower in the low K plants and the reduction could be accounted for as a pressure driven solute flux, with a reduction both in the pressure difference between root sieve elements and elongating cells, and in the sap concentration.
536 _ _ |a Chemie und Dynamik der Geo-Biosphäre
|c U01
|2 G:(DE-HGF)
|0 G:(DE-Juel1)FUEK257
|x 0
588 _ _ |a Dataset connected to Web of Science
650 _ 7 |a J
|2 WoSType
653 2 0 |2 Author
|a aphid stylectomy
653 2 0 |2 Author
|a C-11
653 2 0 |2 Author
|a Hordeum vulgare
653 2 0 |2 Author
|a hydrostatic pressure
653 2 0 |2 Author
|a phloem
653 2 0 |2 Author
|a solute transport
653 2 0 |2 Author
|a symplastic pathway
700 1 _ |a Thorpe, M. R.
|b 1
|0 P:(DE-HGF)0
700 1 _ |a Minchin, P. E. H.
|b 2
|u FZJ
|0 P:(DE-Juel1)VDB23736
700 1 _ |a Pritchard, J.
|b 3
|0 P:(DE-HGF)0
700 1 _ |a White, P. J.
|b 4
|0 P:(DE-HGF)0
773 _ _ |a 10.1071/FP03231
|g Vol. 31, p. 391 - 397
|p 391 - 397
|q 31<391 - 397
|0 PERI:(DE-600)1496158-1
|t Functional plant biology
|v 31
|y 2004
|x 1445-4408
856 7 _ |u http://dx.doi.org/10.1071/FP03231
909 C O |o oai:juser.fz-juelich.de:38398
|p VDB
913 1 _ |k U01
|v Chemie und Dynamik der Geo-Biosphäre
|l Chemie und Dynamik der Geo-Biosphäre
|b Environment (Umwelt)
|0 G:(DE-Juel1)FUEK257
|x 0
914 1 _ |y 2004
915 _ _ |0 StatID:(DE-HGF)0010
|a JCR/ISI refereed
920 1 _ |k ICG-III
|l Phytosphäre
|d 31.12.2006
|g ICG
|0 I:(DE-Juel1)VDB49
|x 0
970 _ _ |a VDB:(DE-Juel1)49147
980 _ _ |a VDB
980 _ _ |a ConvertedRecord
980 _ _ |a journal
980 _ _ |a I:(DE-Juel1)IBG-2-20101118
980 _ _ |a UNRESTRICTED
981 _ _ |a I:(DE-Juel1)IBG-2-20101118
981 _ _ |a I:(DE-Juel1)ICG-3-20090406


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