Navigation Links
How does a plant survive with few mates or pollinators? A European herb has figured out its own way
Date:11/10/2011

ican Journal of Botany (http://www.amjbot.org/content/98/11/1834.full.pdf+html).

Centaurium erythraea is pollinated primarily by hoverflies. However, when Brys and his colleagues first started working on this species, they noticed an extraordinary thing. "A remarkable characteristic of this species," notes Brys, "is its surprising and elegant way of realizing delayed selfing, in which anthers curl at the end of a flowers' life in order to shed pollen and guarantee self-pollination."

In situations where autonomous self-fertilization occurs after the chance of out-crossed pollination (e.g., at the end of a flower's life), then autonomous selfing ensures that the plant has at least some chance of passing its genes on to the next generation. This delayed selfing may incur no costs of pollen and/or ovule discounting and may provide reproductive assurance when successful pollinator-mediated seed production fails.

To test the reproductive assurance hypothesis under circumstances where plant populations varied in size and pollinator availability, Brys and colleagues used emasculation experiments in 22 C. erythraea populations, and compared the seed set of flowers in which anthers were removed prior to floweringand thus could not self-pollinatewith unmanipulated control flowers that were still able to self-pollinate. For each population they determined plant population size (by counting the number of flowering individuals) and pollinator density (using insect traps), and examined how seed set varied with these factors.

The authors found that pollinator-mediated seed set significantly depended upon population size and pollinator availability. The contribution of autonomous seed set, on the other hand, varied greatly among the populations studied, accounting for 19% to 87% of total seed production. More self-pollinated seeds were produced in plants found in populations that were smaller and/or had fewer pollinators,
'/>"/>

Contact: Richard Hund
rhund@botany.org
314-577-9557
American Journal of Botany
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Formula discovered for longer plant life
2. Commercial aquatic plants offer cost-effective method for treating wastewater
3. Structures of important plant viruses determined
4. Research about plant viruses could lead to new ways to improve crop yields
5. UC Riverside biochemists devise method for bypassing aluminum toxicity effects in plants
6. Reproducing early and often is the key to rapid evolution in plants
7. MSU scientists find new gene that helps plants beat the heat
8. Diversity of plant-eating fishes may be key to recovery of coral reefs
9. Researchers design artificial cells that could power medical implants
10. Plant-eating predator to fight superweed is not magic bullet
11. When under attack, plants can signal microbial friends for help
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
How does a plant survive with few mates or pollinators?  A European herb has figured out its own way
(Date:4/6/2015)... 6, 2015 NXT-ID, Inc. (NASDAQ: NXTD ... company focused on the growing mobile commerce market, ... 62/143028 for MINIATURE, MULTI-PURPOSE ANTENNA METHOD AND ... NXT-ID introduces a new revolutionary method and ... the use of miniature antenna modules for multiple ...
(Date:4/2/2015)... -- Fingerprint Cards (FPC) has received an ... distributor World Peace Industrial Group (WPI), part of WPG ... major part of the shipments will take place during ... manufacturers in China . The order ... revenue guidance of + 1 000 MSEK for 2015.  ...
(Date:3/31/2015)...   Guidepoint , a leading global research services ... Management TRACKER, part of the Guidepoint TRACKER ... medical device and therapeutics markets. The Post-Surgical Pain Management ... market share, and adoption rates across three major modalities ... The Post-Surgical Pain Management TRACKER will provide ...
Breaking Biology News(10 mins):NXT-ID Patents Miniature, Low Power Wireless Magnetic Stripe 2NXT-ID Patents Miniature, Low Power Wireless Magnetic Stripe 3NXT-ID Patents Miniature, Low Power Wireless Magnetic Stripe 4Fingerprint Cards Receives Touch Fingerprint Sensor Order of SEK 110 Million 2Guidepoint Launches Post-Surgical Pain Management TRACKER 2Guidepoint Launches Post-Surgical Pain Management TRACKER 3
... EAC standard by providing ... single platform, DALLAS, Sept. 10 As ePassport ... many seek a method,to deploy border security capabilities in ... ENTU ) and 3M (NYSE: MMM ),announce a ...
... has been awarded $1 million from the US Department ... biomass conversion technologies. The grant is one of six ... develop their advanced biofuels projects. In total, the DOE ... projects for their research into how non-food feedstocks can ...
... of California White Mountain Research Station, U.S. Forest ... Integrated Climate Research in Western Mountains will host ... Tri-Valley Fairgrounds in Bishop. The conference is entitled ... will bring together distinguished researchers from a variety ...
Cached Biology News:Entrust, 3M Collaborate to Provide End-to-End Secure ePassport Solution 2Entrust, 3M Collaborate to Provide End-to-End Secure ePassport Solution 3Entrust, 3M Collaborate to Provide End-to-End Secure ePassport Solution 4Stevens awarded $1M for advanced biofuels research 2
(Date:4/30/2015)... , April 30, 2015 The following is an ... Directors of China Cord Blood Corp (NYSE: CO ) ... committee of the independent directors of China Cord Blood Corp ... offer of $6.40 per share from Golden Meditech Holdings Co ... per share would greatly benefit Golden Med and Mr. Kam, ...
(Date:4/30/2015)... SAN DIEGO , April 30, 2015 /PRNewswire/ ... company engaged in the development of biosimilar therapeutics ... today announced the closing of its previously announced ... common stock at a public offering price of ... full by the underwriters of their option to ...
(Date:4/30/2015)... -- WuXi PharmaTech (Cayman) Inc. ("WuXi" or the "Company") ... services provider, today announced that its board of directors ... 29, 2015, from a consortium (the "Consortium") led by ... and chief executive officer of the Company, and Ally ... (the "Transaction") involving the acquisition of all outstanding shares ...
(Date:4/30/2015)... SureClinical, a leader in cloud-based health science ... SureClinical’s executive team as Chief Financial Officer. ... with over 25 years in leadership roles ranging from ... Morris joins SureClinical from Marrone Bio Innovations (MBI), a ... MBI from its founding in 2006 until 2011, when ...
Breaking Biology Technology:April 30, 2015 Open Letter to the Board of China Cord Blood Corp from Jayhawk Capital 2April 30, 2015 Open Letter to the Board of China Cord Blood Corp from Jayhawk Capital 3April 30, 2015 Open Letter to the Board of China Cord Blood Corp from Jayhawk Capital 4April 30, 2015 Open Letter to the Board of China Cord Blood Corp from Jayhawk Capital 5Pfenex Inc. Announces Closing of Public Offering of Common Stock and Full Exercise of Underwriters' Option to Purchase Additional Shares 2WuXi PharmaTech Announces Receipt of Proposal 2WuXi PharmaTech Announces Receipt of Proposal 3WuXi PharmaTech Announces Receipt of Proposal 4WuXi PharmaTech Announces Receipt of Proposal 5WuXi PharmaTech Announces Receipt of Proposal 6Julie I. Morris Joins SureClinical as Chief Financial Officer 2
... Fla., Feb. 16, 2012   GeneLink Biosciences, ... company, has completed the sale of the stock ... Sciences, Inc. (GeneWize)  to Capsalus Corp. (OTCBB: WELL), ... wellness marketplace.  As previously disclosed, GeneLink and Capsalus ...
... 2012 /PRNewswire-iReach/ -- FirstMark today announced the ... cardiovascular blood test PREvent. These clinical results demonstrate the ... (2-3 years) risk of myocardial infarction and death in ... The clinical study and final data was well received ...
... today the publication of key results relating to its ... high-value G-protein-coupled receptor (GPCR) targets in Science . ... Lipid G Protein-Coupled Receptor," was co-authored by Receptos in ... Raymond Stevens, Ph.D. Drs. Rosen and Stevens are both ...
Cached Biology Technology:GeneLink Biosciences Completes Sale of GeneWize Life Sciences 2FirstMark's Landmark Clinical Study Successfully Completed that Fulfills the Unmet Need to Access the Risk of Near Term MI 2Receptos Scientists Publish Determination of a High Resolution Sphingosine 1-Phosphate Receptor 1 Structure in Science 2Receptos Scientists Publish Determination of a High Resolution Sphingosine 1-Phosphate Receptor 1 Structure in Science 3Receptos Scientists Publish Determination of a High Resolution Sphingosine 1-Phosphate Receptor 1 Structure in Science 4
... Collection of Cell Cultures (ECACC) has been ... academia and government institutes for over seven ... designed to introduce candidates to cell culture ... on more specialist areas such as planning ...
...
These 22x40mm rectangular No.1 Corning cover glasses are made from No. 0211 zinc titania glass and are 0.16 to 0.19mm thick. • Approx. Pcs Oz : 73...
...
Biology Products: