Navigation Links
Amber fossil reveals ancient reproduction in flowering plants
Date:1/3/2014

CORVALLIS, Ore. A 100-million-year old piece of amber has been discovered which reveals the oldest evidence of sexual reproduction in a flowering plant a cluster of 18 tiny flowers from the Cretaceous Period with one of them in the process of making some new seeds for the next generation.

The perfectly-preserved scene, in a plant now extinct, is part of a portrait created in the mid-Cretaceous when flowering plants were changing the face of the Earth forever, adding beauty, biodiversity and food. It appears identical to the reproduction process that "angiosperms," or flowering plants still use today.

Researchers from Oregon State University and Germany published their findings on the fossils in the Journal of the Botanical Institute of Texas.

The flowers themselves are in remarkable condition, as are many such plants and insects preserved for all time in amber. The flowing tree sap covered the specimens and then began the long process of turning into a fossilized, semi-precious gem. The flower cluster is one of the most complete ever found in amber and appeared at a time when many of the flowering plants were still quite small.

Even more remarkable is the microscopic image of pollen tubes growing out of two grains of pollen and penetrating the flower's stigma, the receptive part of the female reproductive system. This sets the stage for fertilization of the egg and would begin the process of seed formation had the reproductive act been completed.

"In Cretaceous flowers we've never before seen a fossil that shows the pollen tube actually entering the stigma," said George Poinar, Jr., a professor emeritus in the Department of Integrative Biology at the OSU College of Science. "This is the beauty of amber fossils. They are preserved so rapidly after entering the resin that structures such as pollen grains and tubes can be detected with a microscope."

The pollen of these flowers appeared to be sticky,
'/>"/>

Contact: George Poinar, Jr.
poinarg@science.oregonstate.edu
541-752-0917
Oregon State University
Source:Eurekalert  

Page: 1 2

Related biology news :

1. Scientists find oldest occurrence of arthropods preserved in amber
2. Fossils clarify the origins of wasps and their kin: alderfly ancestors, snakefly cousins
3. Evolution, Civil War history entwine in plant fossil with a tragic past
4. Researchers use CT and 3-D printers to recreate dinosaur fossils
5. Fossil of new big cat species discovered; oldest ever found
6. Visualizing the past: Nondestructive imaging of ancient fossils
7. Emissions pricing revenues could overcompensate profit losses of fossil fuel owners
8. Tell-tale toes point to oldest-known fossil bird tracks from Australia
9. Fossil record shows crustaceans vulnerable as modern coral reefs decline
10. Researchers discover rare fossil ape cranium in China
11. Earthquake swarms; marine Ediacaran fossil traces; Alca obsidian; Mammoth Mountain
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Amber fossil reveals ancient reproduction in flowering plants
(Date:8/20/2014)... sweet and salty aroma of sunscreen and seawater signals ... now reporting that the idyllic beach vacation comes with ... skin and into the sea, they can become toxic ... the main course for many other marine animals. Their ... & Technology . , Antonio Tovar-Sanchez and David Snchez-Quiles ...
(Date:8/20/2014)... years, Virginia Tech,s Wu Feng has built upon a ... "Computing in the Cloud" program, and synergistically complemented it ... from the Air Force on "big computing" for mini-drones ... National Institutes of Health on "big data" for the ... computing" aspects from each grant, he was able to ...
(Date:8/20/2014)... 2014) Women who are poor experience higher cortisol ... elevated levels of the stress hormone, putting them ... according to a new research from the University of ... the American Journal of Human Biology , is ... it directly to the socioeconomic status of their mothers ...
Breaking Biology News(10 mins):The internet was delivered to the masses; parallel computing is not far behind 2The internet was delivered to the masses; parallel computing is not far behind 3The internet was delivered to the masses; parallel computing is not far behind 4CU Denver researcher shows economic disparities impact infant health 2
... Australian parents need to be educated about managing fever ... often unnecessarily, according to a Queensland University of Technology ... conducted the first study into how Australian parents, manage ... results were published in the latest Journal of Paediatrics ...
... 5 bioMETRX, Inc. (OTC,Bulletin Board: BMRX) a ... that it has acquired a patent that covers ... locks. The company believes that this patent ... years, consumers have been using portable locks, such ...
... of a science fiction thriller, researchers at UC Davis have ... of jaws located in the moray,s throat reaches forward into ... the esophagus for swallowing. "This is really an amazing ... Mehta, a postdoctoral researcher in the Section of Evolution and ...
Cached Biology News:Fever causing headaches for Aussie parents 2bioMETRX, Inc. Acquires Patent for Biometric Padlock 2'Alien' jaws help moray eels feed 2
(Date:8/19/2014)... (PRWEB) August 20, 2014 One ... regenerative medicine is an inadequate vascular supply. Nutrient ... and decellularized tissues is critical for successful regeneration ... attempted to mitigate deficiencies in vascularization and promote ... scaffold bioactivity, optimizing scaffold design and architecture, and ...
(Date:8/19/2014)... (PRWEB) August 19, 2014 ... to raise $200,000 to fund a corporate lab ... , This development is a critical component ... of care to the implementation of personalized medicine ... of practicing medicine. , Indiegogo contributions will support ...
(Date:8/19/2014)... 2014 Research and Markets ... "Spectroscopy Equipment and Accessories - Global ... offering. This report analyzes ... Accessories in US$ Thousands by the following ... Spectrometers, NMR-EPR Spectrometers, Near Infrared (NIR) Spectrometers, ...
(Date:8/19/2014)... 19, 2014 /PRNewswire/ - iCo Therapeutics Inc. ("iCo" or ... results of its Oral Amphotericin B (Oral Amp ... study, conducted by ImmuneCarta®, the immune monitoring business ... effectiveness of Oral Amp B in reactivating latent ... despite intensive treatment with antiretroviral therapy. ...
Breaking Biology Technology:Vascularization in Tissue Engineering Highlighted at 12th New Jersey Symposium on Biomaterials Science 2Cellgen Diagnostics Launches Indiegogo Crowdfunding Campaign for DNA Medical Testing Device 2Cellgen Diagnostics Launches Indiegogo Crowdfunding Campaign for DNA Medical Testing Device 3Global Spectroscopy Equipment and Accessories - Strategic Business Report 2014 2iCo Therapeutics Announces Positive Oral Amphotericin B Study Results 2iCo Therapeutics Announces Positive Oral Amphotericin B Study Results 3
... While a movie about giant robots that undergo ... this summer, a scientific study about structural transformations ... the design of novel materials that will serve ... devices. Researchers at the U.S. Department of Energy ...
... Compliance Strategies, Inc. (HCCS) announced today a partnership with ... deliver a series of critical care nursing and nurse ... Systems.  This training includes two separate AACN courses: ... Essentials of Nurse Manager Orientation . The courses are ...
... Using a combination of sophisticated computer modeling and ... research team led by the University at Buffalo ... and Technology (NIST), the Molecular Foundry at Lawrence ... some relatively simple processing flaws can seriously degrade ...
Cached Biology Technology:Nanocrystal transformers 2Nanocrystal transformers 3Nanocrystal transformers 4HCCS Partners with American Association of Critical Care Nurses (AACN) to Offer Nurse Training 2HCCS Partners with American Association of Critical Care Nurses (AACN) to Offer Nurse Training 3Graphene: What can go wrong? new studies point to wrinkles, process contaminants 2
... The Antibody Validation Service enables ... for further development by providing quantitative ... detection limit of each antibody. Furthermore ... revealing the off-target activity of your ...
... The EasyCount System is a fluorescent ... and live nucleated cells and automatically calculates ... By automating this routine function, the variability ... methods can be eliminated. Using the EasyCount ...
... is a new generation of microarrays to ... enables you to rapidly elucidate alternatively spliced ... relevant for drug discovery. The service combines ... design and customized analysis with Agilents robust ...
... The new Adept CE 4100 high ... superb flow precision, with software drive compensation, ... from 0.001-10mL/min are selectable in 0.001mL steps. ... are inert and bio-compatible., Pumps may be ...
Biology Products: