Figures
A bundle of green fluorescent protein-expressing pollen tubes emerge from an Arabidopsis thaliana pistil explant.
In flowering plants, pollen tubes germinate on the stigma surface and extend through the pistil to locate and deliver sperm to female gametes. An article in this issue of PLoS Genetics (see Qin et al, 10.1371/journal.pgen.1000621) uses bundles of pistil-grown pollen tubes, similar to those shown here, to define genome-wide changes in Arabidopsis pollen tube gene expression that occur in response to growth through pistil tissue. Dramatic changes in gene expression occur in pistil-grown tubes and point to genes that are required for the ability of pollen tubes to grow and reach their cellular targets.
Image Credit: Ravishankar Palanivelu (University of Arizona).
Citation: (2009) PLoS Genetics Issue Image | Vol. 5(8) August 2009. PLoS Genet 5(8): ev05.i08. https://doi.org/10.1371/image.pgen.v05.i08
Published: August 28, 2009
Copyright: © 2009 Qin et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
In flowering plants, pollen tubes germinate on the stigma surface and extend through the pistil to locate and deliver sperm to female gametes. An article in this issue of PLoS Genetics (see Qin et al, 10.1371/journal.pgen.1000621) uses bundles of pistil-grown pollen tubes, similar to those shown here, to define genome-wide changes in Arabidopsis pollen tube gene expression that occur in response to growth through pistil tissue. Dramatic changes in gene expression occur in pistil-grown tubes and point to genes that are required for the ability of pollen tubes to grow and reach their cellular targets.
Image Credit: Ravishankar Palanivelu (University of Arizona).