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Plant Cell 7:747—757 Hunter B, Beatty M, Singletary G, Hamaker B, Dilkes B, Larkins B, Jung R (2002) Maize opaque endosperm mutations create extensive changes in Methods Mol Biol 639:171—192 Klemsdal S, Hughes W, Lonneborg A, Aalen R, Olsen 0 (1991) Primary structure of a novel barley gene differentially. 20 Apr 2017 Sperm and eggs can be unbelievably tiny, far smaller than those made by people , or they can be unexpectedly enormous.

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Sperm motility can also be thought of as the quality, which is a factor in successful conception; sperm that do not "swim" properly will not reach the egg in order to fertilize it. Sperm motility in mammals also facilitates the passage of the sperm through the cumulus oophorus (a layer of cells) and the zona pellucida (a layer of. Klemsdal, S.S., Hughes, W.,Lønneborg, A., Aalen, R.B. and Olsen, O.A. (1991) Primary structure of a novel barley gene differentially expressed in immature Kranz, E., Von Wiegen, P., Quader, H., and Lorz, H. (1998) Endosperm development after fusion of isolated, single maize sperm and central cells in vitro, Plant Cell 10.

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Plant Cell 18:40–54 Rotman N, Durbarry A, Wardle A, Yang WC, Chaboud A, Faure JE, Berger F, Twell D (2005) A Novel Class of MYB Factors Controls Sperm-Cell Formation in Plants. Curr Biol 15:244–248 Roy PJ, Stuart JM, Lund J, Kim SK (2002) Chromosomal clustering of muscle-expressed genes in Caenorhabditis. Reidunn B Aalen. The stem cell niche (SCN) of the Arabidopsis thaliana primary root apical meristem is composed of the quiescent (or organising) centre (QC) In angiosperms, the embryo and the endosperm are products of double fertilization during which the two pollen sperm cells fuse with the egg cell and the central.

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Authors, Shirzadi, R., Andersen, E. D., Bjerkan, K. N., Gloeckle, B. M., Heese, M., Ungru, A., Winge, P., Koncz, C., Aalen, R. B., Schnittger, A., Grini, P. E. In angiosperms, the embryo and the endosperm are products of double fertilization during which the two pollen sperm cells fuse with the egg cell and the central cell of. 30 Jun 2015 Human semen contains mystery round cells - new research confirms most are immature sperm that fail to develop a tail, and links their formation to infections like flu.

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Sperm morphometry and motility are important male traits affecting fertility and post-copulatory (Carl Zeiss Vision GmbH, Aalen, Germany). In order to avoid observer effects, one person (TL) conducted all morphometric measurements. Sperm (i.e. sperm cells were tracked for 0.5 s. Genome-Wide Transcript Profiling of Endosperm without Paternal Contribution Identifies Parent-of-Origin Alexander Ungru3, Per Winge4, Csaba Koncz5,6, Reidunn B. Aalen1, Arp Schnittger2,3, Paul E. Grini1* 1Department of Molecular sperm cell is delivered to the central cell, but that.

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19 Nov 2013 Putative peptide ligands have been discovered by three approaches—by use of biochemistry, genetics, and bioinformatics (Butenko and Aalen, 2012). Bioactive compounds with promoting or inhibiting effects on differentiation or cell proliferation have been isolated from plant extracts, and genes encoding.

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