Navigation Links
Sex at zero gravity
Date:3/13/2013

cted by a change in gravity is poorly understood."

The cells were placed into a large centrifuge, along with a camera attached to a microscope, enabling the researchers to track in real time how the cells develop in the intense gravity generated by the centrifuge. "Thanks to the facilities at the European Space Agency, I was able to determine how hypergravity and simulated microgravity affect the intracellular trafficking in the rapidly growing pollen tube," explained Dr. Youssef Chebli, a researcher in Geitmann's lab. "We chose pollen, the carrier of the male sperm cells, as our model because of its pivotal role in plant reproduction and agriculture and because of its extraordinarily rapid growth, meaning that we could observe the effects of the hypergravity within seconds."

The researchers stained specific structures within the cells, which revealed how the cellular components move around and how the cellular transport logistics responds to the changing gravity environment. "We found that intracellular traffic flow is compromised under hyper-gravity conditions and that both hyper and microgravity affect the precisely coordinated construction of the cellular envelope in the growing cell," Chebli said. "This allows us not only to understand general principles of the reproductive mechanism in plants but, more importantly, how the intracellular transport machinery in eukaryotic cells responds to altered gravity conditions. Our findings have implications for human health as similar effects are likely to occur in human cells such as neurons where long distance intracellular transport is crucial."

Chebli and Geitmann's study will be published in the journal PLOS ONE on March 13, 2013. Link: http://dx.plos.org/10.1371/journal.pone.0058246


'/>"/>

Contact: William Raillant-Clark
w.raillant-clark@umontreal.ca
514-343-7593
University of Montreal
Source:Eurekalert  

Page: 1 2

Related biology news :

1. How plants sense gravity -- a new look at the roles of genetics and the cytoskeleton
2. What happens to plant growth when you remove gravity?
3. GOCEs second mission improving gravity map
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Sex at zero gravity
(Date:7/31/2014)... By tracing nearly 3,000 genes to the earliest ... Florida scientists have created an extensive "Tree of ... next-generation DNA sequencing. , Among the study,s ... to small moths than to large ones, which ... The study also found that some insects once ...
(Date:7/31/2014)... the roughly 156,000 gas stations across the United ... of underground gas storage tankscorrosion that could result ... source of drinking water. In recent years, field ... corroding gas storage tank components such as sump ... of gasoline-ethanol blends and the presence of bacteria, ...
(Date:7/31/2014)... people make a rational choice to be liberal or ... it a matter of genetics?, Two political scientists from ... University say that neither conscious decision-making nor parental upbringing ... lean right. , A growing body of evidence shows ... core of political differences, the researchers say in the ...
Breaking Biology News(10 mins):UF study advances 'DNA revolution,' tells butterflies' evolutionary history 2UF study advances 'DNA revolution,' tells butterflies' evolutionary history 3NIST corrosion lab tests suggest need for underground gas tank retrofits 2Scientists find growing consensus: Political attitudes derive from body and mind 2
... reefs in the Indo-Pacific region, including the Great Barrier ... counterparts, leading marine scientists said today. Dr George ... of Excellence for Coral Reef Studies and The University ... in Cairns that coral reefs in the Indo-Pacific Ocean ...
... centuries, people made wine by stomping grapes with their bare feet. ... University of British Columbia,s Wine Research Centre. , Have you ever ... wine? Has one glass of Merlot or Shiraz resulted in a ... percent of people who are allergic to compounds that are in ...
... group at the Smithsonian Tropical Research Institute in Panama ... Florida Museum of Natural History discovered a new species ... in what is now northwestern South America. The team,s ... new turtle species is named Puentemys mushaisaensis because it ...
Cached Biology News:Our coral reefs: In trouble - but tougher than we thought 2Winemaking goes high-tech at the University of British Columbia 2
(Date:7/31/2014)... 2014 Today BioSpace , the leading life sciences employment ... spotlighting the life sciences community in Illinois , ... , Michigan , Minnesota , ... Ohio and Wisconsin . BioMidwest ... all job postings on BioSpace originating in this region in 2013. The ...
(Date:7/31/2014)... to see through organs and even the entire body ... fine-grained cellular structures has been a long-time dream of ... July 31st in the journal Cell has ... for making opaque organs, bodies, and human tissue biopsies ... The protocols could pave the way for a better ...
(Date:7/31/2014)... New York , July 31, 2014 ... by Transparency Market Research "Quantum Dots Market - Global ... - 2023," the market was valued at USD 88.5 ... 8,246.8 million by 2023, growing at a CAGR of ... full Quantum Dots Market Report at  http://www.transparencymarketresearch.com/quantum-dots.html ...
(Date:7/31/2014)... 2014 According to a new ... Medical Devices Market (Diagnostic Electrodes - ECG, EEG, EMG, ... Pacemakers, Defibrillators, Electrosurgical and Other Electrodes) - Global Industry ... 2019," the global electrodes market for medical devices was ... estimated to reach a market worth USD 1,451.2 million ...
Breaking Biology Technology:Midwest Biotech Leaders Featured On BioSpace Map 2See-through organs and bodies will accelerate biomedical discoveries 2Global Quantum Dots Market is Expected to Reach USD 8,246.8 Million in 2023: Transparency Market Research 2Global Quantum Dots Market is Expected to Reach USD 8,246.8 Million in 2023: Transparency Market Research 3Global Quantum Dots Market is Expected to Reach USD 8,246.8 Million in 2023: Transparency Market Research 4Electrodes for Medical Devices Market Expected to Reach USD 1.45 Billion Globally in 2019: Transparency Market Research 2Electrodes for Medical Devices Market Expected to Reach USD 1.45 Billion Globally in 2019: Transparency Market Research 3Electrodes for Medical Devices Market Expected to Reach USD 1.45 Billion Globally in 2019: Transparency Market Research 4Electrodes for Medical Devices Market Expected to Reach USD 1.45 Billion Globally in 2019: Transparency Market Research 5Electrodes for Medical Devices Market Expected to Reach USD 1.45 Billion Globally in 2019: Transparency Market Research 6
... 17 /PRNewswire/ - Norgen Biotek, an innovative Canadian ... for nucleic acids and protein purification, today announced ... A/S (NASDAQ OMX Copenhagen: "EXQ") to supply RNA ... Exiqon A/S is a Denmark-based company active in ...
... The pro bono healthcare injury prevention website ... that its newly instituted Safe Lifting Leadership Award ... of La Crosse, Wisconsin. The award was given ... safe patient handling, safe lifting, and caregiver injury ...
... Scheduled for Thursday, March 19, 2009 at 11:00 AM ... Milestone Scientific Inc. (OTC Bulletin Board: MLSS), ... that it intends to file its 2008 year-end results ... the U.S. Securities & Exchange Commission on Tuesday, March ...
Cached Biology Technology:Norgen Biotek Corp. Announces OEM Manufacturing & Supply Agreement with Exiqon A/S 2Norgen Biotek Corp. Announces OEM Manufacturing & Supply Agreement with Exiqon A/S 3Norgen Biotek Corp. Announces OEM Manufacturing & Supply Agreement with Exiqon A/S 4Gundersen Lutheran Health System is Recognized for Safe Lifting Leadership 2Gundersen Lutheran Health System is Recognized for Safe Lifting Leadership 3Milestone Scientific to Report 2008 Year-End Results on Tuesday, March 17, 2009 2Milestone Scientific to Report 2008 Year-End Results on Tuesday, March 17, 2009 3
... anti-Wilm's tumor, Polyclonal Antibody, Unconjugated ... Use at a dilution of 1/100. ... dilution. WB: Use at an assay ... kDa. Not tested in other applications. ...
... 2 Oligo Microarray Kit (V2), 22K is useful ... stress response. Each microarray contains content derived from ... for Genomic Research (TIGR) and represents 21,500 genes. ... standard 1 x 3? glass slides each containing ...
... biomarker discovery projects require screening through ... distinguish clinically relevant data from normal ... Manager is now available to help ... and data flood inherent to biomarker ...
... This CLS number is ... to easily match Cornings product ... yet, please order under the ... contact customer service for assistance. ...
Biology Products: