Navigation Links
The almond tree's secret weapon
Date:1/28/2010

liter. A second experiment monitored levels much higher than those found in the natural form: 5-50 milligrams per liter. In both cases and for each of the compositions, the bees preferred nectar containing amygdalin over the amygdalin-free option.

"It is difficult and sometimes impossible to determine the workings of evolution, but it is likely that amygdalin is produced in the almond nectar so as to give the almond tree an advantage in reproduction. Based on our observations, we can make a guess at which mechanisms come into play for amygdalin to provide this advantage," Prof. Izhaki explains. For example, even though amygdalin is poisonous for mammals, it is not poisonous for insects, such as the honey bee, and it even produces a stimulant that attracts such insects. Therefore, it is possible that the plant produces it so as to attract potential pollinators. Another possibility is that the almond tree has developed this substance in its nectar as a form of filter: it repulses "non-expert" pollinators, but gives access to the "experts" that have built up resistance to the toxin while providing efficient pollination services for the plant.

The research team, in collaboration with Dr. Malka Halpern, Dr. Yoram Gerchman and research students Svetlana Friedman and Yana Gerstein, are presently examining the possibility of there being an additional mechanism in play: that the nectar toxin prevents inhabitation of bacteria that could spoil the nectar's quality and harm its appeal for potential pollinators, thereby impeding the tree's chances of pollination.

"Pollinating insects have always been lacking, so plants have had to develop ways to take the lead in attracting those that are available, in competition with other plants. Otherwise, they will not be able to reproduce. This is more than just a hypothesis: it is a very practical theory. For reasons that are not fully clear, there is a significant shortage of bees in the world. The worldwide scar
'/>"/>

Contact: Rachel Feldman
rfeldman@univ.haifa.ac.il
972-482-88722
University of Haifa
Source:Eurekalert

Page: 1 2 3

Related medicine news :

1. Kashi Company Introduces TLC(R) Dark Mocha Almond Chewy Bar
2. New Almond Study Finds Chewing is More Than Meets the Mouth: Thorough Chewing May Influence Feelings of Fullness
3. The Traveling Nut: Researchers From Around the World Explore the Impact of Almonds on the Body
4. Barney Butter Almond Butter Hits Shelves of all Raleys /BelAir /Nob Hill Stores
5. Give Your Heart a Holiday: Eating Almonds Helps Support Healthy Fat Levels
6. When It comes to Matters of the Heart, Almonds Are a Multi-Tasker
7. February 16th Is National Almond Day
8. Healthy Choice Shatters the Winter Mealtime Rut With 11 Delicious New Frozen Entrees
9. Younger Hunters Prey to Treestand Injuries
10. Nu Skin Charitable Promotion Reaches Important Milestone: 100,000 Trees Donated to African Nation of Malawi
11. Easter Seals Festival of Trees Holiday Gala Will Make a Difference for Children and Adults With Autism
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/18/2014)... University School of Medicine researchers have been awarded two-year ... Novo Nordisk announced this month. Of the 110 initial ... Biologics Science Forum Program, only four projects were funded, ... They are Jonathan Powell, M.D., Ph.D.; G. William Wong, ... Powell, a professor of oncology, will use his $500,000 ...
(Date:4/18/2014)... Fraser University psychologists have made a brain-related discovery ... attention-deficit disorders. , This discovery opens up the ... or suppress a specific brain activity that the ... , The Journal of Neuroscience has ... John McDonald, an associate professor of psychology and ...
(Date:4/18/2014)... to potential new treatments for breaking the cycle of ... or scarring, is a hallmark of the disease, and ... to serious organ damage and, in some cases, death. ... findings made by Swati Bhattacharyya, PhD, research assistant professor ... protein plays in promoting fibrosis. , "Our results ...
(Date:4/17/2014)... identified the first genetic variant specifically associated with ... for around 10-15 per cent of all breast ... the breast cancer sub-type, called invasive lobular carcinoma, ... of this particular kind of breast cancer, which ... published today (Thursday) in the journal PloS ...
(Date:4/17/2014)... today in PLOS Pathogens , children who live ... can mount an immune response to infection with malaria ... of high fever and illness and partially control the ... may help researchers develop future interventions that prevent or ... Each year, approximately 200 million cases of malaria occur ...
Breaking Medicine News(10 mins):Health News:Scientists discover brain's anti-distraction system 2Health News:New clues on tissue scarring in scleroderma 2Health News:First genetic link discovered to difficult-to-diagnose breast cancer sub-type 2Health News:First genetic link discovered to difficult-to-diagnose breast cancer sub-type 3Health News:Study sheds light on how the immune system protects children from malaria 2
... 23 (HealthDay News) -- Implantable devices designed to ... death among heart failure patients are as effective ... they are in controlled study environments, new research ... analysis of nearly 186,000 patients outfitted with either ...
... Richmond, Va. (Nov. 22, 2010) Researchers at Virginia ... for its involvement in tumor cell development, growth and ... chemotherapy. By inhibiting the expression of this gene, doctors ... treating aggressive cancers such as breast, liver and prostate ...
... Elderly adults can improve their vision with perceptual training, according ... Boston University that has implications for the health and mobility ... improved visual performance in early stages of visual processing," appears ... Vision . It was funded by a $3.5 million grant ...
... News) -- Increased efforts to prevent several lifestyle-related diseases ... year in medical costs, researchers say. Using 2003-2005 ... estimated how reductions in the rates of diabetes, high ... spending. The findings were released online Nov. 18 ...
... HealthDay Reporter , MONDAY, Nov. 22 (HealthDay ... therapy with either warfarin or a combination of Plavix ... Both therapies are prescribed for millions of Americans ... attack or stroke. But the Plavix-aspirin combination was thought ...
... and droplets are the primary ways influenza spreads. ... In a study published in the current issue ... ( http://www.journals.uchicago.edu/doi/abs/10.1086/656743 ), the authors examined such an ... On April 4, 2008, seven inpatients in ...
Cached Medicine News:Health News: Implanted Heart Devices Have 'Real-World' Benefits: Study 2Health News: Implanted Heart Devices Have 'Real-World' Benefits: Study 3Health News:New function of gene in promoting cancer found by VCU researchers 2Health News:Perceptual training improves vision of the elderly 2Health News:Disease Prevention Could Save U.S. Billions of Dollars Annually 2Health News: Bleeding Risk With Plavix-Aspirin Regimen May Be Serious 2Health News: Bleeding Risk With Plavix-Aspirin Regimen May Be Serious 3
(Date:1/15/2014)... , Jan. 15, 2014 Most osteoporosis patients ... to a recent online survey* sponsored by Mission Pharmacal ... the National Osteoporosis Foundation online support community, revealed that ... medication that comes in a form other than a ...
(Date:1/15/2014)... Jan. 15, 2014  Celsion Corporation (the "Company") (NASDAQ: ... from institutional investors to purchase an aggregate of approximately ... at-the-market registered direct offering, led by a dedicated health ... purchase agreements with these investors pursuant to which the ...
(Date:1/15/2014)...  Manufacturers, suppliers and distributors of innovative medical-related products ... most important business assets, intellectual property (IP). ... Because of the highly-competitive nature of the Medical ... most litigious industry sectors of cases involving IP ...
Breaking Medicine Technology:Mission Pharmacal Conducts Online Survey of Osteoporosis Patients 2Mission Pharmacal Conducts Online Survey of Osteoporosis Patients 3Celsion Corporation Announces $15 Million At-The-Market Registered Direct Offering 2Celsion Corporation Announces $15 Million At-The-Market Registered Direct Offering 3Intellectual Property Insurance for Medical-related Products and Services 2
... CITY, Feb. 21, 2012 Genomma Lab Internacional, S.A.B. de ... a non-binding proposal to acquire all of the outstanding shares ... ) common stock for $16.60 dollars per share in cash. ... including Prestige,s net debt. Genomma,s all-cash proposal ...
... Corporation (NYSE: SHP ) ("ShangPharma" or the ... development outsourcing company, today announced that it will attend ... in Boston, Massachusetts from March 5-7, 2012. ... Relations of ShangPharma, will present at the conference and ...
Cached Medicine Technology:Genomma Lab Internacional Announces Non-binding Proposal to Acquire Prestige Brands Holdings for $16.60 Per Share in Cash 2Genomma Lab Internacional Announces Non-binding Proposal to Acquire Prestige Brands Holdings for $16.60 Per Share in Cash 3Genomma Lab Internacional Announces Non-binding Proposal to Acquire Prestige Brands Holdings for $16.60 Per Share in Cash 4Genomma Lab Internacional Announces Non-binding Proposal to Acquire Prestige Brands Holdings for $16.60 Per Share in Cash 5
... Bird and Cronin, Inc. ... of Patient Footwear, Orthopedic ... Care Products. Our products ... quality and available in ...
... AliMed® Turnbuckle Ankle Orthosis enables ... torque at the ankle joint to ... The splint features a pair of ... and eversion/inversion simultaneously. Simply adjust the ...
Softsplint after bunion surgery. Hook-and-loop closure. Maintains hallux positioning and metatarsophalangeal alignment. Washable....
... vein thrombosis, the Aircast VenaFlow System uses ... and rapid impulse inflation. This combination helps ... while producing more shear stress to enhance ... tube assembly (cuffs are sold separately). The ...
Medicine Products: