Genomic stability in response to high versus low linear energy transfer radiation in Arabidopsis thaliana
Frontiers in Plant Science, ISSN: 1664-462X, Vol: 5, Issue: MAY, Page: 206
2014
- 9Citations
- 13Captures
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Example: if you select the 1-year option for an article published in 2019 and a metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019. If you select the 3-year option for the same article published in 2019 and the metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019, 2018 and 2017.
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Metrics Details
- Citations9
- Citation Indexes9
- CrossRef6
- Captures13
- Readers13
- 13
Article Description
Low linear energy transfer (LET) gamma rays and high LET HZE (high atomic weight, high energy) particles act as powerful mutagens in both plants and animals. DNA damage generated by HZE particles is more densely clustered than that generated by gamma rays. To understand the genetic requirements for resistance to high versus low LET radiation, a series of Arabidopsis thaliana mutants were exposed to either 1GeV Fe nuclei or gamma radiation. A comparison of effects on the germination and subsequent growth of seedlings led us to conclude that the relative biological effectiveness (RBE) of the two types of radiation (HZE versus gamma) are roughly 3:1. Similarly, in wild-type lines, loss of somatic heterozygosity was induced at an RBE of about a 2:1 (HZE versus gamma). Checkpoint and repair defects, as expected, enhanced sensitivity to both agents. The "replication fork" checkpoint, governed by ATR, played a slightly more important role in resistance to HZE-induced mutagenesis than in resistance to gamma induced mutagenesis. © 2014 Huefner, Yoshiyama, Friesner, Conklin and Britt.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84902243643&origin=inward; http://dx.doi.org/10.3389/fpls.2014.00206; http://www.ncbi.nlm.nih.gov/pubmed/24904606; http://journal.frontiersin.org/article/10.3389/fpls.2014.00206/abstract; https://dx.doi.org/10.3389/fpls.2014.00206; https://www.frontiersin.org/journals/plant-science/articles/10.3389/fpls.2014.00206/full
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