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PMID: 24221517 Published · ppublish English Journal Article

Inositol bisphosphate and inositol trisphosphate inhibit cell-to-cell passage of carboxyfluorescein in staminal hairs ofSetcreasea purpurea.

Planta ·Vol. 174 ·No. 3 ·1988-06-00 ·Pages 358-63

Tucker EB

Abstract

pH-buffered carboxyfluorescein (Buffered-CF) alone (control), or Buffered-CF solutions containing one of the following: (1)D-myo-inositol (I); (2)D-myo-inositol 2-monophosphate (IP1); (3)D-myo-inositol 1,4-bisphosphate (IP2); (4)D-myo-inositol 1,4,5-trisphosphate (IP3); (5)D-fructose 2,6-diphosphate (F-2,6P2) were microinjected into the terminal cells of staminal hairs ofSetcreasea purpurea Boom. Passage of the CF from this terminal cell along the chain of cells towards the filament was monitored for 5 min using fluorescence microscopy and quantified using computer-assisted fluorescence-intensity video analysis. Cell-to-cell transport of CF in hairs microinjected with Buffered-CF containing either I, IP1 or F-2,6P2 was similar to that in hairs microinjected with Buffered-CF only. On the other hand, cell-to-cell transport of CF in hairs microinjected with Buffered-CF containing either IP2 or IP3 was inhibited. These results indicate that polyphosphoinositols may be involved in the regulation of intercellular transport of low-molecular-weight, hydrophilic molecules in plants.

Authors & Affiliations
1 authors, click to expand affiliations / ORCID
Tucker E B
Department of Natural Sciences, Baruch College, City University of New York, 17 Lexington Avenue, 10010, New York, NY, USA.
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Article Info
Journal
Planta
Abbr.
Planta
ISSN
0032-0935
DOI
10.1007/BF00959521
Published
1988-06-00
Pages
358-63
Language
English
Region
Germany
NLM ID
1250576
External Links
PubMed source DOI: 10.1007/BF00959521 View journal details
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