The Maintenance of Genome Integrity in Plants: Novel Challenges in Basic and Applied Research PDF Download
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Author: Alma Balestrazzi
Publisher: Frontiers Media SA
ISBN: 2889638197
Category :
Languages : en
Pages : 129
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Book Description
Author: Alma Balestrazzi
Publisher: Frontiers Media SA
ISBN: 2889638197
Category :
Languages : en
Pages : 129
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Book Description
Author: Christian Lindermayr
Publisher: Frontiers Media SA
ISBN: 2889665763
Category : Science
Languages : en
Pages : 155
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Book Description
Author: Sasha Ben Preuss
Publisher:
ISBN:
Category :
Languages : en
Pages : 218
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Book Description
Author: Michelle Tjahjadi
Publisher:
ISBN: 9781339066561
Category :
Languages : en
Pages :
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Book Description
DNA is constantly being damaged by both exogenous and endogenous factors. SOG1, a transcription factor, is crucial in regulating Arabidopsis thaliana's response to both single-strand DNA and the lethal double-strand break. As the master transcriptional regulator of the plant's DNA damage response, SOG1 is responsible for transcriptionally regulating cell death and cell cycle arrest after gamma irradiation, in an effort to maintain genome stability. How is SOG1 able to bring about different phenotypes in response to a single stimulus? In Chapter 1, we attempt to elucidate the SOG1 transcriptional network by first identifying mutants of the four most highly induced, SOG1-dependent and ATM-dependent transcription factors. Since transcription factors are notorious for redundancy, we also identified mutants of their closest homologs. We then determined whether these genes play nonredundant roles in mediating SOG1-dependent phenotypes. In Chapter 2, we compare three methods of mutagenesis to create a SOG1 knockout. While sog1-1 has been vital in elucidating SOG1's function, it is an EMS-induced missense mutant with a single amino acid change in its protein sequence. Its background includes many point mutations and is derived from a mix of two different Arabidopsis ecotypes. Thus, studying the significance of this gene has always been confounded by the lack of an isogenic control. There is an extensive database of insertion knockouts for almost every A. thaliana gene; however, no insertion lines exist targeting the SOG1 coding region. We used zinc finger nucleases (ZFNs), CRISPR-Cas9, and TILLING to create a sog1 knockout, potentially in an isogenic background. With our ZFNs having low efficiency and our CRISPR-Cas9 still in its early stages, we show that of the three methods, the oldest method of TILLING has proven the most successful so far. We have obtained a thrice-backcrossed knockout sog1-9, which segregates normally and replicates the sog1-1 cell death phenotype. Being a TILLING mutant, sog1-9 carries a large number of background mutations, but these can be reduced by backcrossing. Our CRISPR-Cas9 project is also promising, allowing generation of isogenic knockouts to provide a more accurate understanding of SOG1 function.
Author:
Publisher:
ISBN:
Category : Immunology
Languages : en
Pages : 834
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Book Description
Author: John L. Plaster
Publisher: Simon and Schuster
ISBN: 1501189581
Category : History
Languages : en
Pages : 368
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Book Description
John Plaster’s riveting account of his covert activities as a member of a special operations team during the Vietnam War is “a true insider’s account, this eye-opening report will leave readers feeling as if they’ve been given a hot scoop on a highly classified project” (Publishers Weekly). Code-named the Studies and Observations Group, SOG was the most secret elite US military unit to serve in the Vietnam War—so secret its very existence was denied by the government. Composed entirely of volunteers from such ace fighting units as the Army Green Berets, Air Force Air Commandos, and Navy SEALs, SOG took on the most dangerous covert assignments, in the deadliest and most forbidding theaters of operation. In SOG, Major John L. Plaster, a three-tour SOG veteran, shares the gripping exploits of these true American warriors in a minute-by-minute, heartbeat-by-heartbeat account of the group’s stunning operations behind enemy lines—penetrating heavily defended North Vietnamese military facilities, holding off mass enemy attacks, launching daring missions to rescue downed US pilots. Some of the most extraordinary true stories of honor and heroism in the history of the US military, from sabotage to espionage to hand-to-hand combat, Plaster’s account is “a detailed history of this little-known aspect of the Vietnam War…a worthy act of historical rescue from an unjustified, willed oblivion” (The New York Times).
Author: Valvya N. Vassileva
Publisher: Frontiers Media SA
ISBN: 2832535623
Category : Science
Languages : en
Pages : 173
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Book Description
Author: Svetlana Shishkova
Publisher: Frontiers Media SA
ISBN: 2832513905
Category : Science
Languages : en
Pages : 190
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Book Description
Author: Sanjib Kumar Panda
Publisher: Springer
ISBN: 3319199684
Category : Science
Languages : en
Pages : 280
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Book Description
This book is an overview of our current understanding of aluminium toxicity and tolerance in plants. It covers all relevant aspects from molecular and cellular biology, to genetic approaches, root biology and plant physiology. The contribution of arbuscular mycorrhizal fungi to alleviating aluminium toxicity is also discussed. Over 40% of total agricultural land resources are acidic in nature, with aluminium being the major toxicant. Plant roots are particularly susceptible to aluminium stress, but much of the complex mechanism underlying its toxicity and tolerance is unknown and aluminium stress perception in plants remains poorly understood. The diverse facets of aluminium stress adaptation covered in this book are relevant to plant biology students at all levels, as well researchers and it provides a valuable contribution to our understanding of plant adaptation to the changing environment.
Author: Schahram Dustdar
Publisher: Springer
ISBN: 3540389032
Category : Business & Economics
Languages : en
Pages : 499
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Book Description
This book constitutes the refereed proceedings of the 4th International Conference on Business Process Management, BPM 2006. The book presents 20 revised full papers, 5 industrial papers, and 15 short papers together with an invited paper and the abstract of an invited talk. The papers are organized in topical sections on monitoring and mining, service composition, process models and languages, dynamic process management, Web service composition, and applied business process management.
