Hauptseite > Publikationsdatenbank > Rapid cooling triggers forisome dispersion just before phloem transport stops > print

001     8364
005     20200423202642.0
024 7 _ |2 pmid
|a pmid:19930129
024 7 _ |2 DOI
|a 10.1111/j.1365-3040.2009.02079.x
024 7 _ |2 WOS
|a WOS:000273551100010
037 _ _ |a PreJuSER-8364
041 _ _ |a eng
082 _ _ |a 570
084 _ _ |2 WoS
|a Plant Sciences
100 1 _ |0 P:(DE-Juel1)VDB67249
|a Thorpe, M.R.
|b 0
|u FZJ
245 _ _ |a Rapid cooling triggers forisome dispersion just before phloem transport stops
260 _ _ |a Oxford [u.a.]
|b Wiley-Blackwell
|c 2010
300 _ _ |a 259 - 271
336 7 _ |a Journal Article
|0 PUB:(DE-HGF)16
|2 PUB:(DE-HGF)
336 7 _ |a Output Types/Journal article
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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 |0 4976
|a Plant, Cell and Environment
|v 33
|x 0140-7791
|y 2
500 _ _ |a We were supported by the Deutsche Forschungsgemeinschaft in the frame of the Schwerpunktprogramm 1108 (BE 1925/8-2, 8-3, 15-1) and by the Marsden Fund of New Zealand (Contract Number UOW003). We acknowledge Gerhard Roeb, Siegfried Jahnke and Marco Dautzenberg for discussions and technical assistance in Julich, and Werner Uhmann, Thomas Wagner, Andreas Reh and Stefan Balser in Giessen for expert workshop assistance in Giessen.
520 _ _ |a Phloem transport stops transiently within dicot stems that are cooled rapidly, but the cause remains unknown. Now it is known that (1) rapid cooling depolarizes cell membranes giving a transient increase in cytoplasmic Ca(2+), and (2) a rise of free calcium triggers dispersion of forisomes, which then occlude sieve elements (SEs) of fabacean plants. Therefore, we compared the effects of rapid chilling on SE electrophysiology, phloem transport and forisomes in Vicia faba. Forisomes dispersed after rapid cooling with a delay that was longer for slower cooling rates. Phloem transport stopped about 20 s after forisome dispersion, and then transport resumed and forisomes re-condensed within similar time frames. Transport interruption and forisome dispersion showed parallel behaviour--a cooling rate-dependent response, transience and desensitization. Chilling induced both a fast and a slow depolarization of SE membranes, the electrical signature suggesting strongly that the cause of forisome dispersion was the transient promotion of SE free calcium. This apparent block of SEs by dispersed forisomes may be assisted by other Ca(2+)-dependent sealing proteins that are present in all dicots.
536 _ _ |0 G:(DE-Juel1)FUEK407
|2 G:(DE-HGF)
|a Terrestrische Umwelt
|c P24
|x 0
588 _ _ |a Dataset connected to Web of Science, Pubmed
650 _ 2 |2 MeSH
|a Calcium: metabolism
650 _ 2 |2 MeSH
|a Carbon Isotopes: analysis
650 _ 2 |2 MeSH
|a Cold Temperature
650 _ 2 |2 MeSH
|a Electrophysiology
650 _ 2 |2 MeSH
|a Fluorescent Dyes
650 _ 2 |2 MeSH
|a Membrane Potentials
650 _ 2 |2 MeSH
|a Microelectrodes
650 _ 2 |2 MeSH
|a Microscopy, Confocal
650 _ 2 |2 MeSH
|a Phloem: physiology
650 _ 2 |2 MeSH
|a Vicia faba: physiology
650 _ 7 |0 0
|2 NLM Chemicals
|a Carbon Isotopes
650 _ 7 |0 0
|2 NLM Chemicals
|a Fluorescent Dyes
650 _ 7 |0 7440-70-2
|2 NLM Chemicals
|a Calcium
650 _ 7 |2 WoSType
|a J
653 2 0 |2 Author
|a 11C
653 2 0 |2 Author
|a burning
653 2 0 |2 Author
|a C-11
653 2 0 |2 Author
|a carbon-11
653 2 0 |2 Author
|a chill
653 2 0 |2 Author
|a cold
653 2 0 |2 Author
|a cooling
653 2 0 |2 Author
|a transport blockage
700 1 _ |0 P:(DE-HGF)0
|a Furch, A.C.U.
|b 1
700 1 _ |0 P:(DE-HGF)0
|a Minchin, P.E.H.
|b 2
700 1 _ |0 P:(DE-HGF)0
|a Föller, J.
|b 3
700 1 _ |0 P:(DE-HGF)0
|a Van Bel, A.J.E.
|b 4
700 1 _ |0 P:(DE-HGF)0
|a Hafke, J.B.
|b 5
773 _ _ |0 PERI:(DE-600)2020843-1
|a 10.1111/j.1365-3040.2009.02079.x
|g Vol. 33, p. 259 - 271
|p 259 - 271
|q 33<259 - 271
|t Plant, cell & environment
|v 33
|x 0140-7791
|y 2010
856 7 _ |u http://dx.doi.org/10.1111/j.1365-3040.2009.02079.x
856 4 _ |u https://juser.fz-juelich.de/record/8364/files/FZJ-8364.pdf
|y Restricted
|z Published final document.
909 C O |o oai:juser.fz-juelich.de:8364
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914 1 _ |y 2010
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|d 31.10.2010
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