HOME >> BIOLOGY >> NEWS
Researchers watch seeds in 3-D and discover an unknown air path

This press release is also available in French.

Researchers from the CNRS, the University J. Fourier (UJF) of Grenoble and the ESRF have recently visualised a plant seed in 3D using synchrotron light. This new view has revealed that there is a network of voids between the cells which may be used for oxygen storage that is needed for efficient germination. It is the first time that a living organism is studied using the holotomography technique at a third generation synchrotron source. The team behind the discovery publishes its results in PNAS.

Embryonic photosynthesis leads to the production of seed-internal oxygen that is important for seed development and quality. In order to visualize seed-internal structures that could serve for oxygen storage conventional microscopic methods could not be used because they require the seed to be cut thus leading to air escape. By using holotomography at the ESRF, scientists could get the full picture of an arabidopsis seed without any structural modification.

Researchers have identified individual cells within the seed and rendered them to show their three-dimensional organization. They have also distinguished an intercellular air network, which should represent an important circulation system for air and perhaps water during germination. However, scientists can't yet assure that this is the path the oxygen follows to "feed" the seed: "Solving this question needs a nano-method to determine the exact composition of air in the network during seed formation, but unfortunately this method is not available yet", explains Silva Lerbs-Mache, the corresponding author of the paper,.

The scientists used hard X-ray-based quantitative phase tomography at beamline ID19 to obtain three-dimensional images of an arabidopsis seed. This seed is a model plant for biologists and the first one the genome
'"/>

Contact: Montserrat Capellas
capellas@esrf.fr
33-476-882-663
European Synchrotron Radiation Facility
15-Sep-2006


Page: 1 2

Related biology news :

1. Researchers find pathway that controls cell size and division
2. Researchers watch antibiotics, bacteria meet at atomic level
3. Researchers discover gene responsible for Restless Legs Syndrome
4. Researchers witness natural selection at work in dramatic comeback of male butterflies
5. Researchers discover human embryonic stem cells are the ultimate perpetual fuel cell
6. Researchers use new approach to predict protein function
7. Researchers probe risks, benefits of folic acid fortification
8. Researchers identify genetic mutation that may alter tumor cell proliferation
9. Researchers discover method for identifying how cancer evades the immune system
10. Researchers use adult stem cells to create soft tissue
11. Researchers find gene that spurs development of the epididymis

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:8/14/2019)... ... August 14, 2019 , ... An upcoming episode of Advancements ... therapeutics are helping to promote normal immune function in order to prevent and ... about the DECODE.DESIGN.CURE™ technology platform, which rapidly develops microbiome therapeutics in order to ...
(Date:8/14/2019)... ... ... Join Jonathan Riek, PhD, VP, Musculoskeletal & Metabolic Imaging, BioTel Research in ... learn about two common imaging methods in NAFLD/NASH to aid with early disease diagnosis, ... disease, with a worldwide prevalence of 20-46 percent. NAFLD can be subdivided into simple ...
(Date:8/14/2019)... ... August 14, 2019 , ... Gateway Genomics , a ... announces inclusion in the 38th annual Inc. 500|5000 list of fastest growing ... qualify, companies must have been founded and generating revenue by March 31, 2015. Ranking ...
Breaking Biology News(10 mins):
(Date:8/23/2019)... ... August 22, 2019 , ... An ... and is scheduled to broadcast 4Q/2019. Check your local listings for more information. ... for generic drug delivery. Focusing on therapeutics for children and the elderly, viewers ...
(Date:8/14/2019)... STATE COLLEGE, Pa. (PRWEB) , ... August 13, ... ... leader in nuclear receptor and in vitro toxicology testing solutions, announced the appointment ... of healthcare industry experience to the Board. , Mark McLoughlin will lend his ...
(Date:8/8/2019)... ... August 08, 2019 , ... ... for sales and service organizations, today announced that the company’s Studio Intelligent Virtual ... the IVA market . Inference will officially accept the award at Frost & ...
(Date:8/6/2019)... ... 06, 2019 , ... The San Diego Biotechnology Network (SDBN) ... SDBN BUZZ podcast focused on connecting the region’s biotech community and discussing topics ... the region and attract external employers, investors, scientists, and others who wish to ...
Breaking Biology Technology:
Cached News: