Document Detail

How pollen tubes grow.
MedLine Citation:
PMID:  17214979     Owner:  NLM     Status:  MEDLINE    
Sexual reproduction of flowering plants depends on delivery of the sperm to the egg, which occurs through a long, polarized projection of a pollen cell, called the pollen tube. The pollen tube grows exclusively at its tip, and this growth is distinguished by very fast rates and reaches extended lengths. Thus, one of the most fascinating aspects of pollen biology is the question of how enough cell wall material is produced to accommodate such rapid extension of pollen tube, and how the cell wall deposition and structure are regulated to allow for rapid changes in the direction of growth. This review discusses recent advances in our understanding of the mechanism of pollen tube growth, focusing on such basic cellular processes as control of cell shape and growth by a network of cell wall-modifying enzymes, molecular motor-mediated vesicular transport, and intracellular signaling by localized gradients of second messengers.
Alexander Krichevsky; Stanislav V Kozlovsky; Guo-Wei Tian; Min-Huei Chen; Adi Zaltsman; Vitaly Citovsky
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Publication Detail:
Type:  Journal Article; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S.; Review     Date:  2006-12-08
Journal Detail:
Title:  Developmental biology     Volume:  303     ISSN:  0012-1606     ISO Abbreviation:  Dev. Biol.     Publication Date:  2007 Mar 
Date Detail:
Created Date:  2007-03-09     Completed Date:  2007-04-26     Revised Date:  2009-11-19    
Medline Journal Info:
Nlm Unique ID:  0372762     Medline TA:  Dev Biol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  405-20     Citation Subset:  IM    
Department of Biochemistry and Cell Biology, State University of New York, Stony Brook, NY 11794-5215, USA.
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MeSH Terms
Arabidopsis / genetics,  growth & development,  metabolism
Carboxylic Ester Hydrolases / metabolism
Dyneins / metabolism
GTP Phosphohydrolases / metabolism
Glucosyltransferases / metabolism
Kinesin / metabolism
Models, Biological
Plant Proteins / metabolism
Plants / genetics,  growth & development,  metabolism
Pollen / growth & development
Pollen Tube / growth & development*
Second Messenger Systems
Reg. No./Substance:
0/Plant Proteins; EC 2.4.1.-/Glucosyltransferases; EC 2.4.1.-/cellulose synthase; EC 3.1.1.-/Carboxylic Ester Hydrolases; EC; EC 3.6.1.-/GTP Phosphohydrolases; EC 3.6.1.-/Kinesin; EC

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