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RSS FeedsIJMS, Vol. 19, Pages 3529: The Long Journey of Pollen Tube in the Pistil (International Journal of Molecular Sciences)

 
 

10 november 2018 15:02:02

 
IJMS, Vol. 19, Pages 3529: The Long Journey of Pollen Tube in the Pistil (International Journal of Molecular Sciences)
 




In non-cleistogamous plants, the male gametophyte, the pollen grain is immotile and exploits various agents, such as pollinators, wind, and even water, to arrive to a receptive stigma. The complex process of pollination involves a tubular structure, i.e., the pollen tube, which delivers the two sperm cells to the female gametophyte to enable double fertilization. The pollen tube has to penetrate the stigma, grow in the style tissues, pass through the septum, grow along the funiculus, and navigate to the micropyle of the ovule. It is a long journey for the pollen tube and its two sperm cells before they meet the female gametophyte, and it requires very accurate regulation to perform successful fertilization. In this review, we update the knowledge of molecular dialogues of pollen-pistil interaction, especially the progress of pollen tube activation and guidance, and give perspectives for future research.


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12 viewsCategory: Biochemistry, Biophysics, Molecular Biology
 
IJMS, Vol. 19, Pages 3530: Cathepsin S Alters the Expression of Pro-Inflammatory Cytokines and MMP-9, Partially through Protease--Activated Receptor-2, in Human Corneal Epithelial Cells (International Journal of Molecular Sciences)
IJMS, Vol. 19, Pages 3527: Structural Studies of the 3,3-cGAMP Riboswitch Induced by Cognate and Noncognate Ligands Using Molecular Dynamics Simulation (International Journal of Molecular Sciences)
 
 
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