Navigation Links
Pollen also appears outside flowering season
Date:3/18/2011

"There is of course a very close relationship between the moment at which pollen is released by plants and the data gathered by the traps used to measure these grains, but this is not always the case", Rafael Tormo, a botanist from the University of Extremadura and co-author of the paper, tells SINC.

His team found delays or advances of up to a week between the time when the pollen of allergenic grass species (from genuses such as Poa, Agrostis, Bromus and Avena) and cupressaceae (cypresses and Arizona pine) are present in the air and their flowering period.

According to the study, which has been published in the International Journal of Biometeorology, these differences are probably due to the phenomenon of "resuspension" of the grains, caused by the wind and by pollen being transported from distant sources.

"Now, for example, the Holm oaks in Extremadura have still not flowered, but those in Andalusia have done. If the wind blows from the south, the pollen traps in Extremadura will already be able to detect Holm oak pollen", explains Tormo, who highlights the importance of understanding the phenology of plant flowering in order to draw up precise pollen prognoses for people with allergies.

On the Iberian Peninsula and in the rest of Europe, the process of flowering moves from south to north, in such a way that the pollen traps "anticipate flowering" if the wind blows from the south. On the other hand, if the wind blows from the north they may record pollen from more northerly latitudes even if the pollination period in the region they are located in is already over.

Traps and field visits

In order to carry out the study, the scientists measured pollen levels from 2007, using an aerobiological trap in Badajoz. The team also travelled to parks and fields around the city in order to verify in situ that pollen was being released by plants, by shaking the male infl
'/>"/>

Contact: SINC
info@plataformasinc.es
34-914-251-820
FECYT - Spanish Foundation for Science and Technology
Source:Eurekalert  

Page: 1 2

Related biology news :

1. UF Pine lsland pollen study leads to revision of states ancient geography
2. Amount of dust, pollen matters for cloud precipitation, climate change
3. Gone with the wind: Far-flung pine pollen still potent miles from the tree
4. Algae and pollen grains provide evidence of remarkably warm period in Antarcticas history
5. Antibiotic appears safe for stroke patients and good companion for tPA
6. Temperature constancy appears key to tropical biodiversity
7. Invasive tunicate appears in Oregons coastal waters
8. Little melamine appears in eggs from chickens on highly contaminated feed
9. Breast cancer drug fulvestrant appears more effective in the presence of CK8 and CK18
10. Caffeine appears to be beneficial in males -- but not females -- with Lou Gehrigs disease
11. Caffeine appears to be beneficial in males -- but not females -- with Lou Gehrigs disease
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Pollen also appears outside flowering season
(Date:8/12/2015)... , August 12, 2015 ... of mobile payment innovation and advanced biometrics technology is ... the way consumers rely on using their credit cards, ... reinventing the future for payment services led by companies ... NXTD ), :  Google, Inc. (NASDAQ: GOOG ), ...
(Date:8/11/2015)... Today, ZUK announced its Android smartphone Z1, featuring FPC,s touch ... 2015 that relate to sales of FPC1155 for this smartphone model ... for 2015. Jörgen Lantto, CEO of FPC, comments: " ... manufacturer in China and we are proud ... for Z1 , its first ...
(Date:8/6/2015)... 6, 2015  Today, U.S. Congressman Mike ... ™ to learn firsthand how Silicon Valley technologies ... is a world leader in multi-factor identity management ... helping federal agencies and commercial organizations achieve new ... "The vast majority of network breaches can ...
Breaking Biology News(10 mins):Digital Wallet Devices & Mobile Payment Management Services Gain a Distinct Advantage in the Digital Payment Evolution as Demand Continues to Grow 2Digital Wallet Devices & Mobile Payment Management Services Gain a Distinct Advantage in the Digital Payment Evolution as Demand Continues to Grow 3Digital Wallet Devices & Mobile Payment Management Services Gain a Distinct Advantage in the Digital Payment Evolution as Demand Continues to Grow 4Digital Wallet Devices & Mobile Payment Management Services Gain a Distinct Advantage in the Digital Payment Evolution as Demand Continues to Grow 5Digital Wallet Devices & Mobile Payment Management Services Gain a Distinct Advantage in the Digital Payment Evolution as Demand Continues to Grow 6FPC's Touch Fingerprint Sensor FPC1155 in ZUK's Smartphone Z1 2Rep. Honda to Visit Crossmatch in Redwood City 2
... have had an accelerated childhood compared to that of modern ... by researchers from Ohio State University and the University of ... tooth growth present in the Neanderthal fossils they examined was ... , And since the rate of tooth growth has ...
... testing methods helped public health officials control and limit ... A virus in 2003 related to the consumption of ... the October 15 issue of The Journal of Infectious ... study, Joseph J. Amon, PhD, MSPH, and colleagues at ...
... testing methods helped public health officials control and limit ... A virus in 2003 related to the consumption of ... the October 15 issue of The Journal of Infectious ... study, Joseph J. Amon, PhD, MSPH, and colleagues at ...
Cached Biology News:Neanderthal teeth grew no faster than comparable modern humans' 2Neanderthal teeth grew no faster than comparable modern humans' 3Disrupting Cocaine-memories To Battle Addiction 2Large-scale Computer Simulations Reveal New Insights Into Antibiotic Resistance 2
(Date:8/27/2015)... ... August 27, 2015 , ... Inc. Magazine released its annual list ... as number 1,361 in growth for the three years through 2014. Being named to ... privately held organizations in the country. , “We are thrilled to make the ...
(Date:8/27/2015)... 27, 2015 In response to recent ... and The US Postal Service to no longer ... ,select agents, by the CDC, Marken reaffirmed today ... sensitive shipments. Marken uses its flexible ... and certified personnel to ensure the safe and ...
(Date:8/26/2015)... ... August 26, 2015 , ... ... today that a second US laboratory is to open in Manhattan, Kansas in ... continued partnership and long-term growth of research and development through collaboration with researchers ...
(Date:8/26/2015)... N.J. , Aug. 26, 2015  Roka Bioscience, ... focused on providing advanced testing solutions for the detection ... CEO will present at the Sidoti & Company Emerging ... conference will be held at the New York Marriott ... presentation will be available through the investor relations section ...
Breaking Biology Technology:iLab Solutions Named to 2015 Inc. 5000 List 2iLab Solutions Named to 2015 Inc. 5000 List 3Marken Ensures Safe Transportation Of Select Agents And Toxins 2MediVet Biologics Animal Health Secures Additional Laboratory Facility in Manhattan, Kansas 2MediVet Biologics Animal Health Secures Additional Laboratory Facility in Manhattan, Kansas 3
... , Jason S. Wood, Varian, ... , Cytochrome P450s (CYPs) ... human body 1 . CYPs are part of the Phase I ... the metabolized drug enabling either easy elimination of the drug or ...
... Z. Yang and S. Sadjadi, Varian, Inc. , ... Amphetamine drugs are often abused and misused in ... and doping laboratories are frequently asked to analyze for the presence ... sample volumes can be collected non-invasively. These drugs generally remain detectable ...
... cells through the B cell receptor or T cells through the ... different members of the same kinase families are used. ZAP-70 and ... and structures. Crosslinking of the CD3 receptor complex leads to the ... 1,2 . These kinases phosphorylate ITAM regions on the receptor which ...
Cached Biology Technology:Simultaneous Detection of CYP3A4, CYP2D6 and CYP2C9 Metabolites with a Single, Sensitive, LC/MS/MS Method 2Simultaneous Detection of CYP3A4, CYP2D6 and CYP2C9 Metabolites with a Single, Sensitive, LC/MS/MS Method 3Rapid Screening of Amphetamine Drugs in Urine by Positive Ion Electrospray LC/MS/MS 2Rapid Screening of Amphetamine Drugs in Urine by Positive Ion Electrospray LC/MS/MS 3Research Tools for Analysis of ZAP-70 2Research Tools for Analysis of ZAP-70 3
... rat tissue extracts (liver, kidney, spleen, and heart) ... extract. It was also tested with microsomal fractions ... A simple and reliable method for measuring NDPase ... of the inorganic phosphate released from NDP by ...
Compound(s) tested through a broad panel of 38 ligand binding and enzyme assays targeting the Central Nervous System. Used to determine selecitivty and potential CNS-Side Effect liabilities of compo...
... through 63 ligand binding ... a broad therapeutic range. ... many non human tissue ... assays. Used to ...
... Receptor (PR) Competitor Assay Kits are ... progesterone receptor binding compounds using fluorescence ... a fusion of glutathione transferase to ... progesterone receptor [PR-LBD(GST)] and a proprietary, ...
Biology Products: