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:4/19/2017)... April 19, 2017 The global ... landscape is marked by the presence of several large ... held by five major players - 3M Cogent, NEC ... accounted for nearly 61% of the global military biometric ... in the global military biometrics market boast global presence, ...
(Date:4/17/2017)... NXT-ID, Inc. (NASDAQ: NXTD ) ("NXT-ID" or the "Company"), ... Report on Form 10-K on Thursday April 13, 2017 with the ... The ... section of the Company,s website at http://www.nxt-id.com  under "SEC Filings," ... 2016 Year Highlights: Acquisition of ...
(Date:4/13/2017)... India , April 13, 2017 According to ... Proofing, Identity Authentication, Identity Analytics, Identity Administration, and Authorization), Service, Authentication Type, ... MarketsandMarkets™, the IAM Market is expected to grow from USD 14.30 Billion ... Growth Rate (CAGR) of 17.3%. ... MarketsandMarkets ...
Breaking Biology News(10 mins):
(Date:10/11/2017)... ... October 11, 2017 , ... ... its endogenous context, enabling overexpression experiments and avoiding the use of exogenous expression ... guides is transformative for performing systematic gain-of-function studies. , This complement to ...
(Date:10/11/2017)... ... October 11, 2017 , ... ... today it will be hosting a Webinar titled, “Pathology is going digital. Is ... , on digital pathology adoption best practices and how Proscia improves lab economics ...
(Date:10/11/2017)... Tbilisi, Georgia (PRWEB) , ... October 11, 2017 , ... ... disaster, taking the lives of over 5.5 million people each year. Especially those living ... the greenovative startup Treepex - based in one of the most pollution-affected countries globally ...
(Date:10/10/2017)... , ... October 10, 2017 , ... San Diego-based team ... its corporate rebranding initiative announced today. The bold new look is part of ... the company moves into a significant growth period. , It will also expand its ...
Breaking Biology Technology:
Cached News: