Navigation Links
Metabolic fingerprinting: Using proteomics to identify proteins in gymnosperm pollination drops
Date:4/10/2013

Proteins are vital parts of living organisms, performing a variety of essential functions such as DNA replication, catabolizing reactions, and responding to stimuli. The complete set of proteins expressed in an organism at a given time, under defined conditions, is known as the proteome. While the genome of an organism remains relatively stable, the proteome is remarkably dynamic, varying from cell to cell and even within a single cell and changing rapidly in response to developmental and environmental cues.

Proteomics is a powerful technique for examining the structure and function of the proteome. For some organisms, proteomics can uncover the relationship between DNA, RNA, and the production of proteinsenabling the comparison of the genome to the proteome. For those organisms that have not yet been sequenced, proteomics facilitates the discovery and identification of proteins. In a new study published in the April issue of Applications in Plant Sciences (available for free viewing at http://www.bioone.org/doi/pdf/10.3732/apps.1300008), graduate student Natalie Prior and her colleagues demonstrate the suitability of proteomics in determining the composition of gymnosperm pollination drops.

"The biggest limitation in what we are doing is that there is no published gymnosperm genome," says Prior. "Most of the work on gymnosperms has been anatomical, histological, or morphological. The biochemical perspective is really lacking."

Mediating signaling between the pollen and the ovule, one role of the pollination drop is to provide a germination medium, which can be species specific. Additionally, in some species, anti-microbial proteins have been identified, suggesting that pollination drops provide protection in addition to acting as a landing spot for pollen grains.

"The proteins we are finding are really starting points for other research," says Prior. "We can identify these proteins, but there is a lot more research that can be done once we know what proteins are there."

Identification of the proteins found in pollination drops provides a metabolic fingerprint and thereby informs understanding of seed plant evolution. Comparing the proteomes of different species allows for identification of proteins, elucidating pollen-ovule interactions in gymnosperms.

"We are using proteomics to examine the biological relevance of the proteins that the pollen grain is exposed to in the drop," comments Prior. "It's fascinating to know if any of those proteins are consistent among groups of gymnosperms and what we can learn from that."


'/>"/>

Contact: Beth Parada
apps@botany.org
American Journal of Botany
Source:Eurekalert

Related biology news :

1. Soy-based S-equol supplement reduces metabolic syndrome risk factors
2. Circadian rhythms have profound influence on metabolic output, UCI study reveals
3. Hot on the trail of metabolic diseases and resistance to antibiotics
4. Gallbladder shown as potential stem cell source for regenerative liver and metabolic disease
5. From feast to famine: A metabolic switch that may help diabetes treatment
6. Eating grapes may help protect heart health in men with metabolic syndrome, new study suggests
7. Metabolic MAGIC
8. Oxidative stress and altered gene expression occurs in a metabolic liver disease model
9. Lack of nutrients and metabolic syndrome linked to different subtypes of depression
10. Production of 5-aminovaleric and glutaric acid by metabolically engineered microorganism
11. FASEB SRC announces conference: Glucose transport -- Gateway for Metabolic Systems Biology
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/20/2016)... Dec. 20, 2016 The rising popularity ... and leasing is stoking significant interest in keyless ... technology, Bluetooth low energy (BLE), biometrics and near-field ... next wave of wireless technologies in the automotive ... to advanced access systems opens the market to ...
(Date:12/16/2016)... Dec. 16, 2016   IdentyTechSolutions America LLC ... products and solutions and a cutting-edge manufacturer of ... it is offering seamless, integrated solutions that comprise ... products. The solutions provide IdentyTech,s customers with combined ... facilities from crime and theft. "We ...
(Date:12/15/2016)... BADEN-BADEN, Germany , December 15, 2016 /PRNewswire/ ... services provider, today announced an agreement with NuData Security, ... join forces. The partnership will enable clients to focus on ... with local data protection regulation. ... In order to provide a one-stop ...
Breaking Biology News(10 mins):
(Date:1/24/2017)... Jan. 24, 2017  Bruker today announced ... technology leader in the development, manufacture, and ... adds Hysitron,s innovative nanomechanical testing instruments to ... (AFMs), surface profilometers, and tribology and mechanical ... in nanomaterials research markets. Hysitron,s 2016 revenues ...
(Date:1/24/2017)... ... January 24, 2017 , ... Men who have a high ... a positive association with increased prostate growth or benign prostatic hyperplasia, according to ... involved 571 Korean men who underwent urological examinations, including serum prostate specific ...
(Date:1/24/2017)... 2017 /PRNewswire/ - ProMetic Life Sciences Inc. (TSX: PLI) (OTCQX: ... orally active lead drug candidate, PBI-4050, has been issued ... Medicines and Healthcare Products Regulatory Agency ("MHRA") for the ... PIM designation is an early indication that a medicinal ... to Medicines Scheme ("EAMS"), intended for the treatment, diagnosis ...
(Date:1/24/2017)... CORAL GABLES, Fla. , Jan. 23, 2017 ... interdisciplinary network focused on scientific discovery and solutions, ... is creating the Frost Institutes for Science and ... technology, engineering, and mathematics (STEM) to help solve ... University of Miami President Julio Frenk ...
Breaking Biology Technology: