Impedance Flow Cytometry: A Novel Technique in Pollen Analysis.

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ID: 46719
2016
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Abstract
An efficient and reliable method to estimate plant cell viability, especially of pollen, is important for plant breeding research and plant production processes. Pollen quality is determined by classical methods, like staining techniques or in vitro pollen germination, each having disadvantages with respect to reliability, analysis speed, and species dependency. Analysing single cells based on their dielectric properties by impedance flow cytometry (IFC) has developed into a common method for cellular characterisation in microbiology and medicine during the last decade. The aim of this study is to demonstrate the potential of IFC in plant cell analysis with the focus on pollen.Developing and mature pollen grains were analysed during their passage through a microfluidic chip to which radio frequencies of 0.5 to 12 MHz were applied. The acquired data provided information about the developmental stage, viability, and germination capacity. The biological relevance of the acquired IFC data was confirmed by classical staining methods, inactivation controls, as well as pollen germination assays.Different stages of developing pollen, dead, viable and germinating pollen populations could be detected and quantified by IFC. Pollen viability analysis by classical FDA staining showed a high correlation with IFC data. In parallel, pollen with active germination potential could be discriminated from the dead and the viable but non-germinating population.The presented data demonstrate that IFC is an efficient, label-free, reliable and non-destructive technique to analyse pollen quality in a species-independent manner.
Reference Key
heidmann2016impedanceplos Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Heidmann, Iris;Schade-Kampmann, Grit;Lambalk, Joep;Ottiger, Marcel;Di Berardino, Marco;
Journal PloS one
Year 2016
DOI
10.1371/journal.pone.0165531
URL
Keywords
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