Social Media Sidebar

Announcement

Please sign up, comment on articles and bring your friends!

Current poll

PlanetTech is asking:

What do you think about our new web site?

Love it, indeed
Really good solution
Same as old one
The old one was better
This is a new option

Quote of the day

People say we're running out of energy. That's only true if we stick with these old 19th century technologies. We are awash in energy from sunlight.

 

Ray Kurzweil

 

Flowering plant origins pushed back 100 million years

RATE THIS! +34
Posted in Science on 3rd Oct, 2013 03:51 AM by AlexMuller

The previously oldest known flowering plant-like pollen dates from the Early Cretaceous period. But the team described six types of fossil pollen grains from older Middle Triassic core samples that closely resemble these earliest examples.

 
The research is published in the journal Frontiers in Plant Science. Flowering plants - also known as angiosperms - are the most numerous and diverse group of seed-producing plants on land.
 
All seed-producing plants make pollen, with each grain enclosing the developing male cell used in sexual reproduction.
 
"That's why plants developed a very tough and resistant wall of organic matter to protect them," explained Professor Peter Hochuli from the University of Zurich, Switzerland.
 
"In the fossil record we find only this protective wall of the pollen grains."
 
Based on the increase in abundance and diversity of flowering plants during the Early Cretaceous - approximately 140 million years ago - it has been assumed that they originated in this period.
 
In the older Triassic samples, Prof Hochuli and his team used confocal laser scanning microscopy to obtain high resolution, three-dimensional images and identified six distinct types of fossilised flowering plant-like pollen based on size, patterning and structure.
 
"With a few differences...the pollen from the Middle Triassic look exactly the same as the angiosperm pollen from the Early Cretaceous," explained Prof Hochuli.


Read original article » Back to category

Comments

Author: Guest
Posted: 2013-10-03
+5
140 million years ago wow, how can they possibly date things back so far. This type thing amazes me. Can't you just see the cave man taking flowers to his woman. Reply
Author: Guest
Posted: 2013-10-03
+4
Professor Hochuli from the University of Zurich in Switzerland say the these plants develop a very tough and resistant wall or organic matter and this is what protects them.
1 Replies
Author: Guest
Posted: 2013-10-03
+2
Thanks to Professor Hochuli for his research, this is interesting that they think the flowers go back that far. Reply
Reply
Author: Guest
Posted: 2013-10-03
+2
Flowers are my thing, so I think that finding these older Middle Triassic core samples that closely resemble these earliest examples, is fantastic. Reply
Author: Guest
Posted: 2013-10-03
+3
The statement that the flowering plant origins pushed back 100 million years, in itself is amazing. Reply
Author: Guest
Posted: 2013-10-23
+0
nbfjrh I really liked your blog.Really looking forward to read more. Much obliged. Reply
Author: Guest
Posted: 2013-11-22
+0
That's a shrewd answer to a tricky queoitsn Reply


 

Recent headlines

  • Posted in Science on 2017-09-23 08:31:24
    Fly me to the Moon: For some, lunar village takes shape..read more
    Posted in Software on 2017-09-23 08:22:48
    One year later, Microsoft AI and Research grows to 8k.....read more
    Posted in Science on 2017-09-23 08:14:46
    Big Antarctic iceberg edges out to sea..read more
    Posted in Business on 2017-09-22 18:42:50
    To Achieve 100% Renewable Energy, We Need Way Better.....read more
    Posted in Medicine on 2017-09-22 18:31:20
    How the poliovirus can be used to battle lethal cancers..read more
Posted in Business on 2013-10-10 01:33
China is working towards a manned lunar mission in about.....read more
Posted in Business on 2013-10-20 07:17
Spacex says China is their main competitor for commercial.....read more
Posted in Software on 2013-10-20 06:43
Pirate Bay Browser Clocks 1,000,000 Downloads..read more
Posted in Medicine on 2013-10-10 02:10
Google reportedly investing hundreds of millions into new.....read more
Posted in Medicine on 2013-10-14 03:13
Endothelial Cells Can Repair and Regenerate Organs,.....read more
Posted in Science on 01.01.2010
Spacex says China is their main competitor for commercial.....read more
Posted in Science on 01.01.2010
Staring at Your Phone Could Be Making You Short Sighted..read more
Posted in Science on 01.01.2010
Oculus Rift virtual reality headset coming to mobile, but.....read more
Posted in Science on 01.01.2010
China is working towards a manned lunar mission in about.....read more
Posted in Science on 01.01.2010
Delivering drugs via nanoparticles to target mitochondria..read more

Recent Blog Posts

  • Posted by AlexMuller
    Scientists probe Neptune's depths to reveal secrets of icy.....read more
    Posted by AlexMuller
    New terahertz imaging approach could speed up skin cancer.....read more
    Posted by AlexMuller
    Rebutting the claim that antidepressants do not work..read more
    Posted by AlexMuller
    Artificial neural networks decode brain activity during.....read more
    Posted by AlexMuller
    Four Earth-sized planets detected orbiting the nearest.....read more

Login to your Account

Login to your PlanetTech Account here

Username:
Password:
Remember me
or

Create a New Account

You just need username and password

The following errors occured:
Username:
Email:
Password:
Verify password:
Remember me