The formation of an apple and pollen tubes

#Plants #fertilization #pollenTube #God


ONTOLOGICAL QUESTIONS- 27
"These are the Alps.  
The world's longest tunnel was built here.
57 kilometres.
What was used to correctly move forward in the darkness of the mountain while digging the tunnel?
Magnetic field measurements were made.
GPS-like geodetic devices were used.
Laser scanners and radar systems were used.
Measurements were constantly checked with accelerometers and gyroscopes.
And a giant drill bit with a diameter of 9 meters was used to create the tunnel.
Only by using all of these method was it possible to reach exactly the right point.
A great success.
Construction lasted 17 years.
The tunnel opened in 2016.
There is a similar process on a microscale in all plants.
Let's understand the how small this is.
Let's consider this cucumber as the stem of the apple flower.
Let this be the stigma.
Let this pin be a sperm cell.
And this one is the tunnelling cell.
The tunnelling cell will create a pollen tube.
It will extend like this.
The sperm cell will advance through the opened tunnel.
The travelling of pollen tubes along the plant stem is a seemingly simple but inconceivable phenomenon."

Text and compilation: Veysel Ayhan
YOUTUBE IMAGES AND INFORMATION SOURCES
Dall-e, ChatGBT
Signaling in Pollen Tube Growth: Crosstalk, Feedback, and Missing Links
https://www.cell.com/molecular-plant/...
A dynamic interplay between phytohormones is required for fruit development, maturation, and ripening
https://www.frontiersin.org/journals/...
Signalling between the sexes during pollen tube reception
https://www.cell.com/trends/plant-sci...
Pollen and Stigma Structure and Function: The Role of Diversity in Pollination
Pol Basket of Honey bees
Molecular Communication for Coordinated Seed and Fruit Development: What Can We Learn from Auxin and Sugars?
Seed-fruit relationships in fleshy fruit: Role of hormones.
https://revistas.uptc.edu.co/index.ph...
Mechanics of Pollen Tube Elongation
https://www.frontiersin.org/journals/...
Scientists identify mechanism responsible for fruit and seed development in flowering plants
https://new.nsf.gov/news/scientists-i...
Arabidopsis FIMBRIN5, an Actin Bundling Factor, Is Required for Pollen Germination and Pollen Tube Growth
http://sourcedb.ib.cas.cn/cn/ibthesis...
DEMONSTRATION OF THE CHEMOTROPISM OF POLLEN TUBES IN VITRO IN FOUR PLANT SPECIES
https://core.ac.uk/download/pdf/76294...
Summary of Some Substances which Cause Positive Chemotropism
https://www.jstor.org/stable/2816615?...
A Complex Journey: Cell Wall Remodeling, Interactions, and Integrity During Pollen Tube Growth
https://www.frontiersin.org/journals/...
The concerted molecular action that builds the pollen tube
https://link.springer.com/article/10....
(Photo) Pollen Tubes Growing Through the Pistil of Arabidopsis Thaliana, ©-Jan-Martinek-Pollen-Tubes
https://www.cupoty.com/jan-martinek-p...