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@article{1351698,
author = {Said, Hafidh and Potěšil, David and Fíla, Jan and Čapková, Věra and Zdráhal, Zbyněk and Honys, David},
article_location = {London},
article_number = {May},
doi = {http://dx.doi.org/10.1186/s13059-016-0928-x},
keywords = {Protein secretion; Pollen tube guidance; Cell-cell signaling; Double fertilization},
language = {eng},
issn = {1465-6906},
journal = {Genome Biology},
title = {Quantitative proteomics of the tobacco pollen tube secretome identifies novel pollen tube guidance proteins important for fertilization},
url = {http://genomebiology.biomedcentral.com/articles/10.1186/s13059-016-0928-x},
volume = {17},
year = {2016}
}
TY - JOUR
ID - 1351698
AU - Said, Hafidh - Potěšil, David - Fíla, Jan - Čapková, Věra - Zdráhal, Zbyněk - Honys, David
PY - 2016
TI - Quantitative proteomics of the tobacco pollen tube secretome identifies novel pollen tube guidance proteins important for fertilization
JF - Genome Biology
VL - 17
IS - May
SP - nestránkováno
EP - nestránkováno
PB - BIOMED CENTRAL LTD
SN - 14656906
KW - Protein secretion
KW - Pollen tube guidance
KW - Cell-cell signaling
KW - Double fertilization
UR - http://genomebiology.biomedcentral.com/articles/10.1186/s13059-016-0928-x
L2 - http://genomebiology.biomedcentral.com/articles/10.1186/s13059-016-0928-x
N2 - We performed genome-wide quantitative liquid chromatography-tandem mass spectrometry analysis of a pistil-stimulated pollen tube secretome and identified 801 pollen tube-secreted proteins. Interestingly, in silico analysis reveals that the pollen tube secretome is dominated by proteins that are secreted unconventionally, representing 57 % of the total secretome. In support, we show that an unconventionally secreted protein, translationally controlled tumor protein, is secreted to the apoplast. Remarkably, we discovered that this protein could be secreted by infiltrating through the initial phases of the conventional secretory pathway and could reach the apoplast via exosomes, as demonstrated by co-localization with Oleisin1 exosome marker. We demonstrate that translationally controlled tumor protein-knockdown Arabidopsis thaliana plants produce pollen tubes that navigate poorly to the target ovule and that the mutant allele is poorly transmitted through the male. Further, we show that regulators of the endoplasmic reticulum-trans-Golgi network protein secretory pathway control secretion of Nicotiana tabacum Pollen tube-secreted cysteine-rich protein 2 and Lorelei-like GPI-anchor protein 3 and that a regulator of endoplasmic reticulum-trans-Golgi protein translocation is essential for pollen tube growth, pollen tube guidance and ovule-targeting competence.
ER -
SAID, Hafidh, David POTĚŠIL, Jan FÍLA, Věra ČAPKOVÁ, Zbyněk ZDRÁHAL and David HONYS. Quantitative proteomics of the tobacco pollen tube secretome identifies novel pollen tube guidance proteins important for fertilization. \textit{Genome Biology}. London: BIOMED CENTRAL LTD, 2016, vol.~17, May, p.~nestránkováno, 29 pp. ISSN~1465-6906. Available from: https://dx.doi.org/10.1186/s13059-016-0928-x.
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