Home > Publications database > Short-term storage of carbohydrate in stem tissue of apple (Malus domestica), a woody perennial: evidence for involvement of the apoplast > print

001     47497
005     20180210143735.0
024 7 _ |2 DOI
|a 10.1071/FP05082
024 7 _ |2 WOS
|a WOS:000232856600006
037 _ _ |a PreJuSER-47497
041 _ _ |a eng
082 _ _ |a 580
084 _ _ |2 WoS
|a Plant Sciences
100 1 _ |a McQueen, J. C.
|b 0
|0 P:(DE-HGF)0
245 _ _ |a Short-term storage of carbohydrate in stem tissue of apple (Malus domestica), a woody perennial: evidence for involvement of the apoplast
260 _ _ |a Collingwood, Victoria
|b CSIRO Publ.
|c 2005
300 _ _ |a 1027 - 1031
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 32
500 _ _ |a Record converted from VDB: 12.11.2012
520 _ _ |a This work investigates the pathway and mechanism for lateral retrieval of carbohydrate into the transport phloem of apple stems ( Malus domestica Borkh.). A heat exchanger was set up on the stem, allowing rapid chilling and subsequent re-warming of stem segments while the time course of axial transport of C-11-labelled photoassimilate was measured at a position similar to 65 mm downstream of the heat exchanger. Whenever axial transport was blocked by a sudden chill at the heat exchanger, transport 65 mm downstream from the blockage immediately slowed but did not stop, showing that there was retrieval of solutes into the pathway ( buffering), within that 65 mm of stem, to help maintain the axial flow. Use of PCMBS, an inhibitor of sugar transporters, showed that the buffering included retrieval of sugar from the apoplast. We concluded that in apple, apoplastic sugar in stem tissue can buffer phloem transport during short-term changes in supply and demand for carbohydrates. Buffering was stronger when mobile reserves in the stem were higher, for example late in the photoperiod, or if carbohydrate demand in the terminal sink was increased. We also suggest that the concentration of sugars in the apoplast is a regulator of carbohydrate storage and re-mobilisation.
536 _ _ |a Chemie und Dynamik der Geo-Biosphäre
|c U01
|2 G:(DE-HGF)
|0 G:(DE-Juel1)FUEK257
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588 _ _ |a Dataset connected to Web of Science
650 _ 7 |a J
|2 WoSType
653 2 0 |2 Author
|a apoplast
653 2 0 |2 Author
|a apple
653 2 0 |2 Author
|a C-11
653 2 0 |2 Author
|a phloem loading
653 2 0 |2 Author
|a retrieval
653 2 0 |2 Author
|a stem buffering
653 2 0 |2 Author
|a sugar transport
653 2 0 |2 Author
|a transport phloem
700 1 _ |a Minchin, P. E. H.
|b 1
|u FZJ
|0 P:(DE-Juel1)VDB23736
700 1 _ |a Thorpe, M. R.
|b 2
|u FZJ
|0 P:(DE-Juel1)VDB28478
700 1 _ |a Silvester, W. B.
|b 3
|0 P:(DE-HGF)0
773 _ _ |a 10.1071/FP05082
|g Vol. 32, p. 1027 - 1031
|p 1027 - 1031
|q 32<1027 - 1031
|0 PERI:(DE-600)1496158-1
|t Functional plant biology
|v 32
|y 2005
|x 1445-4408
856 7 _ |u http://dx.doi.org/10.1071/FP05082
909 C O |o oai:juser.fz-juelich.de:47497
|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 2005
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)74931
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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