Extracellular Guidance Cues and Intracellular Signaling Pathways that Direct Pollen Tube Growth

2006 ◽  
pp. 223-242 ◽  
Author(s):  
Mark A. Johnson ◽  
Elizabeth Lord
Plants ◽  
2019 ◽  
Vol 8 (6) ◽  
pp. 156 ◽  
Author(s):  
Nolan Scheible ◽  
Andrew McCubbin

The coordinated growth of pollen tubes through floral tissues to deliver the sperm cells to the egg and facilitate fertilization is a highly regulated process critical to the Angiosperm life cycle. Studies suggest that the concerted action of a variety of signaling pathways underlies the rapid polarized tip growth exhibited by pollen tubes. Ca2+ and small GTPase-mediated pathways have emerged as major players in the regulation of pollen tube growth. Evidence suggests that these two signaling pathways not only integrate with one another but also with a variety of other important signaling events. As we continue to elucidate the mechanisms involved in pollen tube growth, there is a growing importance in taking a holistic approach to studying these pathways in order to truly understand how tip growth in pollen tubes is orchestrated and maintained. This review considers our current state of knowledge of Ca2+-mediated and GTPase signaling pathways in pollen tubes, how they may intersect with one another, and other signaling pathways involved. There will be a particular focus on recent reports that have extended our understanding in these areas.


2012 ◽  
Vol 3 ◽  
Author(s):  
Roman Pleskot ◽  
Přemysl Pejchar ◽  
Radek Bezvoda ◽  
Irene K. Lichtscheidl ◽  
Mieke Wolters-Arts ◽  
...  

2018 ◽  
Vol 31 (1) ◽  
pp. 31-41 ◽  
Author(s):  
Hong-Ju Li ◽  
Jiang-Guo Meng ◽  
Wei-Cai Yang

1989 ◽  
Vol 58 (3) ◽  
pp. 515-521 ◽  
Author(s):  
Goro OKAMOTO ◽  
Ikuo SHIBUYA ◽  
Miwa FURUICHI ◽  
Kazuo SHIMAMURA

1994 ◽  
Vol 269 (18) ◽  
pp. 13162-13166
Author(s):  
Y. Konda ◽  
I. Gantz ◽  
J. DelValle ◽  
Y. Shimoto ◽  
H. Miwa ◽  
...  

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