Pathfinding in angiosperm reproduction: pollen tube guidance by pistils ensures successful double fertilization

2011 ◽  
Vol 1 (1) ◽  
pp. 96-113 ◽  
Author(s):  
Ravishankar Palanivelu ◽  
Tatsuya Tsukamoto
Keyword(s):  
Pollen Tube ◽  
Double Fertilization ◽  
Pollen Tube Guidance

Female gametophyte-controlled pollen tube guidance

2010 ◽  
Vol 38 (2) ◽  
pp. 627-630 ◽  
Author(s):  
Mihaela-Luiza Márton ◽  
Thomas Dresselhaus
Keyword(s):  
Pollen Tube ◽  
Female Gametophyte ◽  
Cell Communication ◽  
Flowering Plants ◽  
Sperm Cells ◽  
Double Fertilization ◽  
Pollen Tube Guidance ◽  
Communication Events ◽  
Extensive Cell

During the evolution of flowering plants, their sperm cells have lost mobility and are transported from the stigma to the female gametophyte via the pollen tube to achieve double fertilization. Pollen tube growth and guidance is largely governed by the maternal sporophytic tissues of the stigma, style and ovule. However, the last phase of the pollen tube path is under female gametophyte control and is expected to require extensive cell–cell communication events between both gametophytes. Until recently, little was known about the molecules produced by the female gametophyte that are involved in this process. In the present paper, we review the most recent development in this field and focus on the role of secreted candidate signalling ligands.

scholarly journals Pollen tube contents initiate ovule enlargement and enhance seed coat development without fertilization

2016 ◽  
Vol 2 (10) ◽  
pp. e1600554 ◽  
Author(s):  
Ryushiro D. Kasahara ◽  
Michitaka Notaguchi ◽  
Shiori Nagahara ◽  
Takamasa Suzuki ◽  
Daichi Susaki ◽  
...  
Keyword(s):  
Pollen Tube ◽  
Seminal Plasma ◽  
Vital Role ◽  
Sperm Cells ◽  
Double Fertilization ◽  
Seed Formation ◽  
Pollen Tube Guidance ◽  
Tube Content ◽  
Endosperm Mutants ◽  
Autonomous Endosperm

In angiosperms, pollen tubes carry two sperm cells toward the egg and central cells to complete double fertilization. In animals, not only sperm but also seminal plasma is required for proper fertilization. However, little is known regarding the function of pollen tube content (PTC), which is analogous to seminal plasma. We report that the PTC plays a vital role in the prefertilization state and causes an enlargement of ovules without fertilization. We termed this phenomenon as pollen tube–dependent ovule enlargement morphology and placed it between pollen tube guidance and double fertilization. Additionally, PTC increases endosperm nuclei without fertilization when combined with autonomous endosperm mutants. This finding could be applied in agriculture, particularly in enhancing seed formation without fertilization in important crops.

scholarly journals Arabidopsis HAP2 (GCS1) is a sperm-specific gene required for pollen tube guidance and fertilization

Development ◽  
2006 ◽  
Vol 133 (23) ◽  
pp. 4761-4769 ◽  
Author(s):  
K. von Besser ◽  
A. C. Frank ◽  
M. A. Johnson ◽  
D. Preuss
Keyword(s):  
Pollen Tube ◽  
Specific Gene ◽  
Pollen Tube Guidance

scholarly journals The Central Cell Plays a Critical Role in Pollen Tube Guidance in Arabidopsis

2007 ◽  
Vol 19 (11) ◽  
pp. 3563-3577 ◽  
Author(s):  
Yan-Hong Chen ◽  
Hong-Ju Li ◽  
Dong-Qiao Shi ◽  
Li Yuan ◽  
Jie Liu ◽  
...  
Keyword(s):  
Pollen Tube ◽  
Critical Role ◽  
Central Cell ◽  
Pollen Tube Guidance

scholarly journals Changes in the Ovary Related to Pollen Tube Guidance

2000 ◽  
Vol 85 ◽  
pp. 79-85 ◽  
Author(s):  
M HERRERO
Keyword(s):  
Pollen Tube ◽  
Pollen Tube Guidance

scholarly journals Arabinogalactan proteins (AGPs) related to pollen tube guidance into the embryo sac in Arabidopsis

2008 ◽  
Vol 3 (7) ◽  
pp. 455-456 ◽  
Author(s):  
Sílvia Coimbra ◽  
Brian Jones ◽  
Luís Gustavo Pereira
Keyword(s):  
Pollen Tube ◽  
Embryo Sac ◽  
Arabinogalactan Proteins ◽  
Pollen Tube Guidance

Integration of ovular signals and exocytosis of a Ca2+ channel by MLOs in pollen tube guidance

Nature Plants ◽  
2020 ◽  
Vol 6 (2) ◽  
pp. 143-153 ◽  
Author(s):  
Jiang-Guo Meng ◽  
Liang Liang ◽  
Peng-Fei Jia ◽  
Ying-Chun Wang ◽  
Hong-Ju Li ◽  
...  
Keyword(s):  
Pollen Tube ◽  
Pollen Tube Guidance

scholarly journals Arabidopsis DIACYLGLYCEROL KINASE4 is involved in nitric oxide-dependent pollen tube guidance and fertilization

Development ◽  
2020 ◽  
Vol 147 (8) ◽  
pp. dev183715 ◽  
Author(s):  
Aloysius Wong ◽  
Lara Donaldson ◽  
Maria Teresa Portes ◽  
Jörg Eppinger ◽  
José A. Feijó ◽  
...  
Keyword(s):  
Nitric Oxide ◽  
Pollen Tube ◽  
Pollen Tube Guidance

scholarly journals Massively Parallelized Pollen Tube Guidance and Mechanical Measurements on a Lab-on-a-Chip Platform

PLoS ONE ◽  
2016 ◽  
Vol 11 (12) ◽  
pp. e0168138 ◽  
Author(s):  
Naveen Shamsudhin ◽  
Nino Laeubli ◽  
Huseyin Baris Atakan ◽  
Hannes Vogler ◽  
Chengzhi Hu ◽  
...  
Keyword(s):  
Pollen Tube ◽  
Lab On A Chip ◽  
Pollen Tube Guidance ◽  
Mechanical Measurements
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