Significant strides in small regulatory RNA research in plants

Molecular biology experienced a significant shift in thinking in recent years with growing evidence that microRNAs (miRNAs) play a major role in the control of eukaryotic gene expression during development. These tiny RNAs, which have sequence complimentarity to short segments of protein-coding genes, are encoded in regions of the genome distinct from other recognized genes. miRNAs function similarly to small interfering RNAs (siRNAs) which are equivalently sized, tiny RNAs that target viral genomes, transposons, and other foreign or aberrant RNA molecules for destruction. siRNAs have been studied for a number of years in plants since their discovery as the causal agent of RNA silencing, which is believed to represent a natural defense mechanism against viral infection and the activity of transposable elements. siRNAs typically target foreign and potentially pathogenic RNAs for destruction, whereas miRNAs target endogenous messenger RNAs for regulation. miRNAs often show a high degree of evolutionary conservation across species, and there is growing evidence that they represent a major class of regulatory molecule having broad significance in a wide range of developmental processes in plants and animals. miRNAs have been found to play specific roles in plant development, including the regulation of flowering time and floral organ identity, and leaf polarity and morphology.

Researchers William J. Lucas at the University of California, Davis, and Tony J. Lough at AgriGenesis Biosciences, Auckland, New Zealand, and their coauthors, show that small RNA corresponding to authentic siRNAs and miRNAs can enter and move through the phloem of several plant species. Furthermore, these authors identify a novel protein, Cucurbita maxima PHLOEM SMALL RNA-BINDING PROTEIN1 (CmPSRP1), and show that it likely plays a role in trafficking of small RNA through the phloem. The research is significant because small RNAs have not previously been observed in the phloem. I

Contact: Nancy Eckardt
American Society of Plant Biologists

Page: 1 2

Related biology news :

1. Significant pain reduction for post-shingles patients
2. Significant health benefits of a daily fish meal as part of a weight loss regimen
3. Genetics Not Significant To Developing Typical Parkinsons Disease
4. Some Smelter Slags Represent A Significant Environmental Hazard
5. Chiron Discovers Significant Hepatitis C Binding Mechanism; Data Indicates CD81 Protein May Be A Virus Receptor
6. Antioxidant Action Of Vitamin E Significantly Reduces Heart Disease In Mice
7. Study Shows First Significant Genetic Evidence For Schizophrenia Susceptibility
8. Subtle Changes In Brain Receptor Gene May Have Significant Consequences For Addiction
9. Children With AD/HD Have Significant Functional Disabilities Related to Attention Deficit
10. Oregon Stem Cell Center result of OHSU research strides
11. In gene regulation, small is beautiful

Post Your Comments:

(Date:8/9/2018)... ... August 08, 2018 , ... Specialty Med ... helps physicians bring the latest regenerative therapies and treatment options to their patients, ... 2018 in White Plains, NY. , The 2-day clinical collaboration ...
(Date:8/7/2018)... ... 2018 , ... Nurse practitioners and physician ... healthcare careers in the past year, according to the second annual survey of ... with a wide variety of career- and employment-related resources including physician/candidate database, job ...
(Date:8/7/2018)... ... 07, 2018 , ... Nanomedical Diagnostics , leading manufacturer ... titled, “Synthetic Molecules for Disruption of the Myc Protein-Protein Interface ” in ... Agile R100, described as a “ field-effect transistor (Bio-FET) platform ,” to produce ...
Breaking Biology News(10 mins):
(Date:8/9/2018)... ... August 09, 2018 , ... Simpson Gumpertz ... (AEC) experts with building owners and managers for a full-day discussion on health ... symposium comes to Boston for the first time on Thursday, 13 September 2018, ...
(Date:8/1/2018)... ... August 01, 2018 , ... Roland ... of a proprietary biofield energy treated supplement that potentially improves the anti-inflammatory ... systemic and organ-specific inflammation, as well as, immune function response. The following ...
(Date:7/31/2018)... ... 31, 2018 , ... Mahoney Environmental , a leading ... new website. The new website has been designed with improved functionality and navigation, ... Innovative to build a website created for the customer. The newly redesigned site ...
(Date:7/25/2018)... ... July 25, 2018 , ... Eileen Meagher, ... of a biofield energy treated nutraceutical to improve skin health parameters including anti-wrinkling, ... skin health and reported the following results:,     More than ...
Breaking Biology Technology:
Cached News: