Navigation Links
For certain orchids, relatives more important than pollinators in shaping floral attractants
Date:10/26/2011

While Steiner was conducting fieldwork in South Africa, he noticed that the Redivia bees he was catching had small yellow objects attached to their legs. These turned out to be pollen packets (pollinaria) from orchid flowers. "By matching up the varied shapes and sizes of the different pollinaria found on the bees with those I extracted from the various orchid flowers I encountered, I was able to determine which orchid species these bees were visiting and what the attractant might be," Steiner comments. "For each orchid whose pollinaria the oil-collecting bees carried, I found that the flowers secreted a non-volatile oil rather than nectar as a reward. And, by examining as many orchid flowers as I could find, I discovered that over 100 orchid species in southern Africa produce oil as a pollinator reward and that these species are pollinated by oil-collecting bees."

The scents of these orchids, which are usually described as unpleasant, pungent, cloying, or smelling like soap, fascinated Steiner, and he sent as many scents as he could collect to a well-known authority on orchid scents, Roman Kaiser. According to Steiner, "Once we had a good sample of scents from the different oil-secreting orchids, we could begin to compare them and ask questions regarding whether closely related species had more similar scents than distantly related species and whether species pollinated by the same bee species also shared the same floral scent, even when they were not closely related. In other words, is phylogeny more important than natural selection in determining the composition of floral scents in this group of orchids?"

Steiner and his colleagues, Kaiser and Dtterl, predicted that because these oil-secreting orchids seem so specialized, the scent profiles of species pollinated by the same bee species would be similar regardless of phylogeny. They also predicted that the scents of orchids within a rainfall region (winter vs. summer) would be more similar t
'/>"/>

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

Page: 1 2 3 4

Related biology news :

1. St. Jude identifies genomic causes of a certain type of leukemia relapse
2. UCSB scientists show how certain vegetables combat cancer
3. Dealing with taxonomic uncertainty for threatened and endangered species
4. Study unravels why certain fishes went extinct 65 million years ago
5. New evidence explains poor infant immune response to certain vaccines, says MU researcher
6. Shellfish face an uncertain future in a high CO2 world
7. MSU discoveries upend traditional thinking about how plants make certain compounds
8. Mango effective in preventing, stopping certain colon, breast cancer cells
9. Ongoing human evolution could explain recent rise in certain disorders
10. Consumption of certain fish during pregnancy associated with poorer cognitive performance
11. Long-term use of certain contraception injections associated with increased fracture risk
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
For certain orchids, relatives more important than pollinators in shaping floral attractants
(Date:5/26/2015)... , May 26, 2015 ... announced the addition of the "Saudi Arabia ... report to their offering. ,     (Logo: http://photos.prnewswire.com/prnh/20130307/600769) , ... Arabia is projected to grow at ... high growth is attributed to the surging demand ...
(Date:5/22/2015)... May 22, 2015 According to ... Solution (2D, 3D, Thermal, Emotion, Forensic), by Software (Middleware, Databases), ... and Utilities, Consumer and Home) - Global Forecast to ... from $2.77 Billion in 2015 to $6.19 Billion by ... Browse 79 market data Tables and   43 Figures ...
(Date:5/20/2015)... 20, 2015 ... announced the addition of the  "5-year ... Recognition Market"  report to their offering.  ... service analyses trends in the iris ... commercial sectors, globally. Despite hardware pricing ...
Breaking Biology News(10 mins):Saudi Arabia Biometric Systems Market Forecast and Opportunities, 2020 with Morpho Safran, ZK Technlogy, and Suprema Dominating 2Facial Recognition Market Worth $6.19 Billion by 2020 2Facial Recognition Market Worth $6.19 Billion by 2020 3Global Iris Recognition Market Report 2015 - 5-Year Opportunity Analysis 2
... California Institute of Technology (Caltech)-led team of researchers ... a targeted nanoparticleused as an experimental therapeutic and ... tumors, deliver double-stranded small interfering RNAs (siRNAs), and ... mechanism known as RNA interference (RNAi). Moreover, the ...
... out extraneous footage to create a blockbuster, the cellular machine ... and joins the remaining pieces to fashion a template for ... are at stake: if the spliceosome makes a careless cut, ... studying the spliceosome, a team led by University of Michigan ...
... This release is available in Spanish . ... pigs as part of their regular diet makes them less ... Agricultural Research Service (ARS) scientists and cooperators. The tryptophan-enhanced ... pigs during the 8-month study. Tryptophan, which is only acquired ...
Cached Biology News:Caltech-led team provides proof in humans of RNA interference using targeted nanoparticles 2Caltech-led team provides proof in humans of RNA interference using targeted nanoparticles 3Caltech-led team provides proof in humans of RNA interference using targeted nanoparticles 4Spying on a cellular director in the cutting room 2Spying on a cellular director in the cutting room 3Tryptophan-enriched diet reduces pig aggression 2
(Date:6/1/2015)... June 1, 2015 /PRNewswire/ - BIOREM Inc. (TSX-V: BRM) ("Biorem" or "the ... 31, 2015.  Biorem,s complete 2015 first quarter financial statements and MD&A ... Summary:Three-months ended March 31,(in CDN$,000 except per share data) ... , 1,974 Gross profit , 1,531 , ... earnings (loss) , 528 , (531) Basic earnings ...
(Date:6/1/2015)... 2015 Research and Markets ... the "Global PDT Machine Industry Report 2014" ...      (Logo: http://photos.prnewswire.com/prnh/20130307/600769) , , ,The ... professional and in-depth study on the current state ... a basic overview of the industry including definitions, ...
(Date:6/1/2015)... IL (PRWEB) June 01, 2015 ... developing and manufacturing of chiral stationary phases (CSPs) ... options for its current and presenting solutions for ... to its portfolio. This valuable addition to its ... and effective advantage that can tackle projects for ...
(Date:6/1/2015)... RESEARCH TRIANGLE PARK, N.C. , June 1, ... FENCF), announced the presentation of positive interim results ... in SIOPEL6: A multi-centre open label randomised phase ... (STS) in reducing ototoxicity in patients receiving cisplatin ... data was presented at the American Society of ...
Breaking Biology Technology:Biorem Reports Increased Revenues and Earnings for First Quarter 2Biorem Reports Increased Revenues and Earnings for First Quarter 3Global PDT Machine Industry Report 2014 2Regis Technologies Offers Chiral Chromatography Service 2Regis Technologies Offers Chiral Chromatography Service 3Fennec Announces Presentation Of Positive Interim Sodium Thiosulfate Phase III Safety Data At The 2015 ASCO Annual Meeting 2Fennec Announces Presentation Of Positive Interim Sodium Thiosulfate Phase III Safety Data At The 2015 ASCO Annual Meeting 3Fennec Announces Presentation Of Positive Interim Sodium Thiosulfate Phase III Safety Data At The 2015 ASCO Annual Meeting 4
... October 30 In a joint press conference,Orange ... customer,oriented cellular e-health service., "Health is the ... is why,Orange and Medic4all are launching together the ... Data Services Development,Manager for Orange Romania., Medic4you ...
... LEXINGTON, Mass., Oct. 30 RainDance Technologies, Inc.,a ... and disease research, today announced that the J. ... research organization located in,Rockville, MD and La Jolla, ... its,new RDT 1000 instrument and Sequence Enrichment application., ...
... Morria Biopharmaceuticals,Plc, a biopharmaceutical company focusing on ... Yuval,Cohen, President of Morria, will deliver a presentation ... on Monday, Nov. 10 from 10:45 to,11:10 a.m. ... New York Palace Hotel., Dr. Cohen,s presentation ...
Cached Biology Technology:Orange and Medic4all Launched the World's First Cellular Tele-Health Service 2RainDance Technologies Delivers RDT 1000, Sequence Enrichment Solution to JCVI 2RainDance Technologies Delivers RDT 1000, Sequence Enrichment Solution to JCVI 3Morria Biopharmaceuticals Plc to Present at the Rodman & Renshaw 10th Annual Healthcare Conference 2