Navigation Links
Primitive Plants Have Complex Sex Life
Date:10/5/2007

Fern-like cycads use heat, odor to get the job done, study shows

FRIDAY, Oct. 5 (HealthDay News) -- Primitive plants called cycads use heat and scent to manipulate pollinating insects, a new study reveals.

Cycads, a group of plants that has been around for 250 million to 290 million years, look similar to ferns or palms but are not related to them. Cycads are gymnosperms, a group that also includes modern coniferous tress such as pines and firs.

Reporting in the Oct. 5 issue of Science, a team at the University of Utah has discovered that the plants heat up and emit an intense odor in order to evict thrips (small flying insects) that have been feeding on pollen found in male cycad cones.

The plants then release a milder odor to attract the pollen-covered thrips into their female cones in order to achieve pollination.

This unusual approach may represent an intermediate stage in the evolution of plant pollination, the researchers said.

"People think of plants as just sitting there and looking pretty and sending out some odors to attract pollinators, but these cycads have a specific sexual behavior tuned to repel, attract and deceive the thrips that pollinate them," principal author Irene Terry, research associate professor of biology, said in a prepared statement.

More information

The University of California Museum of Paleontology has more about cycads.



-- Robert Preidt



SOURCE: University of Utah, news release, Oct. 4, 2007


'/>"/>
Copyright©2007 ScoutNews,LLC.
All rights reserved

Page: 1

Related medicine news :

1. Primitive Yeast Yields Secrets Of Human Cholesterol And Drug Metabolism
2. Genes Associated With Limb Development is More Primitive Than Believed
3. Silicon eye implants
4. Parasite infections linked to organ transplants
5. Stem Cell Transplants May Be Effective For MS Patients
6. Dental implants are turning to gain popularity
7. Cell transplants used to fend off Parkinsons symptoms
8. Assessment for hearing aid implants in the process
9. Bone marrow transplants for limbs
10. Cell transplants for stroke
11. More risks connected with live-donor liver transplants
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/22/2014)... 2014 Explorys, the leader in big ... leadership team: Greg Yarrington as Vice President of Operations, ... Wells as Vice President of Solutions. These new leaders ... jobs in 2015 to support client demand for the ... offerings, and growth of its partner network. , ...
(Date:12/22/2014)... 2014 Pasadena sleep apnea ... sleep apnea. Drowsy drivers are 15 times more likely ... well-rested, and some experts believe that sleep-deprived drivers may ... drivers. Unfortunately, millions of Americans may be sleep-deprived without ... Sleep Medicine, about 18 million Americans have sleep apnea, ...
(Date:12/22/2014)... (PRWEB) December 22, 2014 Christmas is days ... has a fast and easy solution that will please: the ... can be purchased from from $25 up to $350," says ... 100% customer satisfaction and a wide array of skin care ... fees and no expiration dates. , Gift delivery past ...
(Date:12/22/2014)... Washington, DC (PRWEB) December 22, 2014 ... Nursing Leadership Conference, next month in San ... strategies to address dynamics that often stand in ... authority, and competition. , This premier faculty ... Center for Transformational Leadership, whose mission is to ...
(Date:12/21/2014)... 2014 BellasDress.com offers a wide range ... Today, it announces its BellasDress Christmas Sale , ... online store. , BellasDress is a famous online supplier ... fans through a series of promotions. The dress experts ... , “We are proud of offering high quality ...
Breaking Medicine News(10 mins):Health News:Explorys Continues to Experience Rapid Growth, Adds Three Healthcare IT Executives to Its Leadership Team 2Health News:Explorys Continues to Experience Rapid Growth, Adds Three Healthcare IT Executives to Its Leadership Team 3Health News:Pasadena Dentist, Dr. Marine Martirosyan, Now Offers Consultations for Sleep Apnea 2Health News:2015 NLN Leadership Conference February 5-7 San Antonio 2Health News:2015 NLN Leadership Conference February 5-7 San Antonio 3Health News:BellasDress.com Announces its BellasDress Christmas Sale 2
... LYMAN, S.C., Sept. 11 Southern Home Medical,Equipment, Inc. ... the month of August 2008 compared to July 2008., ... stated, "On the heels of,reporting record sales in the ... on a path of strong sales momentum. Encore Medical ...
... against women in a family also has serious consequences ... sling Monemi from Uppsala University has studied women and ... other things, that children whose mothers are exposed to ... other children. , Kajsa sling Monemi, paediatrician, the ...
... - For Non-US Healthcare Media, - Global ... Improved Survival Outcomes With Vetmedin(R) (pimobendan), Veterinarians and ... promise of an extended happy life together for millions ... that dogs,suffering from the most common type of heart ...
... Residents to Eat Right, Move More ... and Milk Their Diets, BOSTON, Sept. 11 ... fad diets -- which seem to go in and out of,fashion like shoulder ... -- including 51 percent of Massachusetts,residents -- remain overweight or obese., A ...
... 11 Oculus Innovative,Sciences, Inc. (Nasdaq: OCLS ), ... of products based upon the Microcyn(R),Technology platform, today announced ... exclusive interview on WallSt.net,s 3-Minute Press Show., The ... the,significance of the company,s latest press release., ...
... Plastic surgeon offers the surprise scoop, NEW ... time and an,active lifestyle can impact a person,s ... million Americans turned to cosmetic procedures last,year to ... Shirley Madhere, M.D., says you can improve your ...
Cached Medicine News:Health News:Southern Home Medical Announces Revenues Up 172% for the Month of August 2Health News:Landmark Research Heralds New Era in Dog Heart Treatment and Longer Life for Dogs 2Health News:Landmark Research Heralds New Era in Dog Heart Treatment and Longer Life for Dogs 3Health News:Landmark Research Heralds New Era in Dog Heart Treatment and Longer Life for Dogs 4Health News:Message to Boston Residents: Forgo Fad Dieting and Join the Campaign for Healthy Weight 2Health News:Message to Boston Residents: Forgo Fad Dieting and Join the Campaign for Healthy Weight 3Health News:Message to Boston Residents: Forgo Fad Dieting and Join the Campaign for Healthy Weight 4Health News:[video] Hojabr Alimi, CEO of Oculus Innovative Sciences, Inc. Discusses Reduction of Planned Expenses on WallSt.net's 3-Minute Press Show 2Health News:Insider Secrets for Beautiful Skin 2
(Date:12/19/2014)... 18, 2014  Decision Resources Group finds that the ... will increase to a value of over ... by expansion in the large direct energy device market. ... increasingly adopted due to the advantages they offer and ... findings from Decision Resources Group,s coverage of the U.S. ...
(Date:12/19/2014)... , Dec. 18, 2014  RESMED INC. (NYSE: ... second quarter of fiscal year 2015 results on Thursday, January ... A press release with ResMed,s results will be issued after ... a webcast to discuss operating results and future outlook. ... p.m. US Pacific Time and the live webcast of the ...
(Date:12/19/2014)... , Dec. 18, 2014 Since last ... the site now known as the leading online black ... seen explosive growth in its offering of drugs and ... Alliance show the takedowns did succeed in lowering the ... last review of the markets in August. But some ...
Breaking Medicine Technology:U.S. Laparoscopic Device Market Will Reach Over $4.3 Billion by 2023 2U.S. Laparoscopic Device Market Will Reach Over $4.3 Billion by 2023 3ResMed To Announce Second Quarter 2015 Results 2Post Silk Road - Another Online Drug Den Now Dominates the DarkNet 2Post Silk Road - Another Online Drug Den Now Dominates the DarkNet 3
... RELISA ENA Multiparameter Kit is ... for six of the most ... a unique quality control system. ... Check) well in each strip ...
... RELISA ENA assays were designed with the ... clinician in the diagnosis of autoimmune disease. ... disease and 1,000 normal individuals were tested ... Test System. Immuno Concepts compared the results ...
... functional human C1q coated in the solid phase ... stage, CIC in the diluted patient samples and ... into the C1q coated assay wells. After incubation, ... and a ready to use conjugate (goat anti-human ...
... CIC are formed as a host ... cleared by phagocytosis. If not cleared, CIC ... inflammatory response. CIC are increased in Systemic ... may be involved in other autoimmune disorders ...
Medicine Products: