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:10/16/2014)... war on the human body. Battles are won, ... pancreatic cancer, this stalemate—known as tumor dormancy—can last ... a phenomena that is poorly understood. , ... of Salvatore Torquato, a Professor of Chemistry at ... tumor dormancy and the switch to a malignant ...
(Date:10/16/2014)... researchers have challenged conventional thinking on how the bowel ... mechanism for how bowel cancer starts. , The researchers ... and regenerating the ,crypts, that are a feature of ... involved in bowel cancer development, a controversial finding as ... , Using 3D imaging technologies, Dr Chin Wee Tan ...
(Date:10/16/2014)... Post-menopausal women experienced improvements in vaginal atrophy, with ... bleeding, after 12 weeks of daily 10 milligram ... nutritional supplement previously shown to help relieve certain ... study reported in a poster at the North ... , "These data documented improved vaginal epithelium, without ...
Breaking Biology News(10 mins):Modeling tumor dormancy 2Cryptic clues drive new theory of bowel cancer development 2S-equol supplements associated with improved measures of reproductive health in postmenopausal women 2
... development and path of Hurricane Gustav is shown via ... Resolution Imaging Spectrometer (MERIS) instrument on 25 August, 28 ... to left). Gustav formed on 25 August 2008 ... far right image), when a tropical wave developed curved ...
... and Spanish . Researchers from the ... Department of Chemistry-Physics of the University of ... have revealed the need of counterbalancing the diet of the ... data, in this period of time macronutrient consumption levels are ...
... M.D. Anderson Cancer Center have developed a risk prediction ... suggests a greater risk from chronic obstructive pulmonary disease ... issue of Cancer Prevention Research, a journal ... Etzel and colleagues analyzed data from 491 African Americans ...
Cached Biology News:Hurricane Gustav 2Nutritionists of the UGR suggest diet improvements during Ramadan 2African-Americans have unique lung cancer risks from chronic obstructive pulmonary disease 2
(Date:10/19/2014)... October 19, 2014 The Latin American ... market in Latin America with analysis and forecast of ... 2013, and is expected to reach $2,366.8 million by ... 2018. , Browse through the TOC of the Latin ... of the in-depth analysis provided. It also provides a ...
(Date:10/19/2014)... NextCODE Health, which enables clinicians and researchers to use full ... the launch of its new genomic data analysis and collaboration ... of Human Genetics (ASHG) annual meeting in San ... for free beta access, visit www.nextcode.com . A brief ... here . The Exchange: , ...
(Date:10/19/2014)... October 19, 2014 The Asian Automatic ... Asian with analysis and forecast of revenue. The Automatic ... to around $463.9 million by 2018, at a developing ... through the TOC of the Asian Automatic patient billing ... provided. This also provides a glimpse of the segmentation ...
(Date:10/19/2014)... 2014 The report "Chocolate, Cocoa Beans, ... Prices, Geography Trend and Forecast (2011 - 2016)," ... geography and studies the major market drivers, restraints, and ... and Asia. , The global chocolate market is expected ... in 2016 at an estimated CAGR of 2.7% from ...
Breaking Biology Technology:The Latin American hardware encryption display market is expected to reach $2,366.8 million by 2018 - New Report by MicroMarket Monitor 2The Latin American hardware encryption display market is expected to reach $2,366.8 million by 2018 - New Report by MicroMarket Monitor 3The NextCODE Exchange: The first global, real-time system for sharing full-resolution genomic data 2The NextCODE Exchange: The first global, real-time system for sharing full-resolution genomic data 3The Asian Automatic patient billing market is estimated to grow to around $463.9 million by 2018 - New Report by MicroMarket Monitor 2The Asian Automatic patient billing market is estimated to grow to around $463.9 million by 2018 - New Report by MicroMarket Monitor 3Chocolate Market Projected To Reach $98.3 Billion by 2016 - New Report by MarketsandMarkets 2Chocolate Market Projected To Reach $98.3 Billion by 2016 - New Report by MarketsandMarkets 3Chocolate Market Projected To Reach $98.3 Billion by 2016 - New Report by MarketsandMarkets 4
... Deliver Electronic X-ray-Based, Therapy Directly to ... SUNNYVALE, Calif., March 17 Xoft, ... clearance from the U.S. Food & Drug,Administration ... a,proprietary technology platform designed to deliver localized,non-radioactive, ...
... poised to ... MENLO PARK, Calif., March 17 Apieron, Inc., ... has received,clearance to market by the U.S. Food and ... nitric oxide (eNO), which is a,well-established indicator of airway ...
... -, SAN DIEGO, Calif., March 17 BioMed ... its board of directors has,declared a first quarter 2008 ... increase over the company,s previous quarterly dividend of $0.31,per ... dividend,of $1.34 per common share., BioMed also announced ...
Cached Biology Technology:FDA Clears Expanded Use of Xoft's Axxent(R) Electronic Brachytherapy System for all Radiation Therapy Indications 2Apieron, Inc. Announces FDA Clearance of the Insight(TM) eNO System to Assist Physicians with Patient Asthma Management 2Apieron, Inc. Announces FDA Clearance of the Insight(TM) eNO System to Assist Physicians with Patient Asthma Management 3BioMed Realty Trust Announces Increase in Quarterly Common Stock Dividend 2
Request Info...
Any form, any size, any number of mutageneses. ExonBio provides the best service with double sequecing to make sure the success of the mutagenesis....
Please email us with project details and we will respond within 24 hours to your query!...
Request Info...
Biology Products: