Characterization of a MAPK Module Involved in Arabidopsis Response to Wounding Cecile Sözen
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Copyright by Michael Andrew Wallen Jr. 2018
Copyright By Michael Andrew Wallen Jr. 2018 The Thesis committee for Michael Andrew Wallen Jr Certifies that this is the approved version of the following thesis: Isolation and Characterization of Pisum sativum Apyrases, PsNTP9 and PsNTP9-DM, Cloned and Expressed in Escherichia coli Approved by Supervisory Committee: Supervisor: Stanley J. Roux Enamul Huq Isolation and Characterization of Pisum sativum Apyrases, PsNTP9 and PsNTP9-DM, Cloned and Expressed in Escherichia coli Michael Andrew Wallen Jr. Thesis Presented to the Faculty of the Graduate School of The University of Texas at Austin in Partial Fulfillment of the Requirements for the Degree of Master of Arts The University of Texas at Austin May 2018 Acknowledgements I would like to thank Dr. Stan Roux, Dr. Greg Clark, and Dr. Han-Wei Jiang for allowing me to learn under their guidance, and for trusting me. I am deeply grateful for the pleasure of being able to work in the lab with each of you, and the wonderful staff and students I’ve seen making progress each day. I always knew I could count on someone to be available to answer a hard question or give some good advice. I would also like to thank Dr. Mona Mehdy, who sponsored me early and helped me to learn how to work in a molecular biology lab, and encouraged me to be confident and self-sufficient. I also have an enormous amount of gratitude for the CNS graduate staff, whose efforts made my attendance possible, and who could be counted upon to help me out whenever I needed it. -
Triphosphate Receptor in Arabidopsis Thaliana A
IDENTIFICATION OF A NOVEL EXTRACELLULAR ADENOSINE 5’-TRIPHOSPHATE RECEPTOR IN ARABIDOPSIS THALIANA A Dissertation Presented to The Faculty of the Graduate School At the University of Missouri – Columbia In Partial Fulfillment Of the Requirements for the Degree Doctor of Philosophy By An Quoc Pham Dr. Gary Stacey, Dissertation Supervisor December, 2019 The undersigned, appointed by the Dean of the Graduate School, have examined the Dissertation entitled: IDENTIFICATION OF A NOVEL EXTRACELLULAR ADENOSINE 5’-TRIPHOSPHATE RECEPTOR IN ARABIDOPSIS THALIANA Presented by An Quoc Pham A candidate for the degree of Doctor of Philosophy And hereby certify that, in their opinion, it is worthy of acceptance. Professor Gary Stacey Professor Walter Gassmann Professor Melissa G. Mitchum Professor Gary A. Weisman ACKNOWLEDGEMENTS I would like to thank my advisor, Prof. Gary Stacey, for giving me an excellent opportunity to work in his lab; thank you for your patience, understanding, encouragement, and guidance in research, career, and life. My sincere thanks to my advisory committee members, Prof. Walter Gassmann, Prof. Melissa G. Mitchum and Prof. Gary A. Weisman for their constructive advice and supportive encouragement. I appreciate Dr. Yangrong Cao and Dr. Kiwamu Tanaka, who guided me in the first two years. Also, I warmly thank Dr. Sung-Hwan Cho, Dr. Deawon Kim and Dr. Dongqin Chen for guiding me to complete my thesis. I want to thank Dr. Cuong T. Nguyen, my lab member, who not only contributed to this study but also supported me a lot in my student life. I am grateful to Prof. Bing Stacey, Dr. Phat Do and Dr. -
P2K1 Receptor, Heterotrimeric G Protein and CNGC2/4 Are Involved
plants Article P2K1 Receptor, Heterotrimeric Gα Protein and CNGC2/4 Are Involved in Extracellular ATP-Promoted Ion Influx in the Pollen of Arabidopsis thaliana Yansheng Wu 1,2,†, Hongmin Yin 1,†, Xinyue Liu 1, Jiawei Xu 1, Baozhi Qin 1, Kaili Feng 1, Erfang Kang 1,* and Zhonglin Shang 1,* 1 Key Laboratory of Molecular & Cellular Biology of the Ministry of Education, College of Life Sciences, Hebei Normal University, Shijiazhuang 050024, China; [email protected] (Y.W.); [email protected] (H.Y.); [email protected] (X.L.); [email protected] (J.X.); [email protected] (B.Q.); [email protected] (K.F.) 2 College of Bioscience and Bioengineering, Xingtai University, Xingtai 054001, China * Correspondence: [email protected] (E.K.); [email protected] (Z.S.); Tel.: +86-(311)-8078-7565 (E.K.); +86-(311)-8078-7570 (Z.S.) † These authors contributed equally to this work. Abstract: As an apoplastic signal, extracellular ATP (eATP) is involved in plant growth and development. eATP promotes tobacco pollen germination (PG) and pollen tube growth (PTG) by stimulating Ca2+ or K+ absorption. Nevertheless, the mechanisms underlying eATP-stimulated ion uptake and their role in PG and PTG are still unclear. Here, ATP addition was found to modulate PG and PTG in 34 plant species and showed a promoting effect in most of these species. Furthermore, by using Arabidopsis thaliana as 2+ + Citation: Wu, Y.; Yin, H.; Liu, X.; Xu, a model, the role of several signaling components involved in eATP-promoted ion (Ca ,K ) uptake, J.; Qin, B.; Feng, K.; Kang, E.; Shang, PG, and PTG were investigated. -
Abstract Book
II International Congress of Purinergic Signalling in South America Abstract book Maresias – São Paulo, Brazil May 30 to June 2, 2015 1 Presentation The Brazilian Purine Club was founded in 2009 with the objective of bringing together the scientific community interested in topics related to purinergic signaling. The organization of periodical congresses aims to promote the integration of researchers and students into a scientific field, which is rapidly expanding in Brazil and worldwide. Based on that, four scientific congresses were held so far. The “First Meeting of the Brazilian Purine Club: Purinergic signaling and therapeutic implications”, realized in August 2010 in Águas de Lindóia in São Paulo State, was attended by 150 participants (Researchers from Brazil and abroad in addition to a significant number of graduate and undergraduate students). The “Second Meeting of the Brazilian Purine Club” was realized in August 2011 in the city of Rio de Janeiro. The conference was attended by established researchers and students. These two initial meetings were organized as satellite symposiums of the annual conference of FESBE (Brazilian Federation of Experimental Biology Societies). The apparent success of the first two Brazilian Purine Club Meetings, demonstrated by the number of participants and increased scientific interactions between the members, encouraged us to organize a larger meeting in 2012. The “Third Meeting of the Brazilian Purine Club” was held in September in the town of Ouro Preto in the Minas Gerais State, followed in September 2013 by the “Fourth Meeting of the Brazilian Purine Club” in Canela, Rio Grande do Sul. The latter two congresses were organized and held independent from FESBE. -
Role of Exogenous ATP in Modulating Inflammation in the Brain
REVIEW ARTICLE published: 01 September 2014 CELLULAR NEUROSCIENCE doi: 10.3389/fncel.2014.00260 The two-hit hypothesis for neuroinflammation: role of exogenous ATP in modulating inflammation in the brain Bernd L. Fiebich 1, Shamima Akter 2 and Ravi Shankar Akundi 2* 1 Department of Psychiatry and Psychotherapy, Neurochemistry Research Laboratory, University of Freiburg Medical School, Freiburg, Germany 2 Neuroinflammation Research Laboratory, Faculty of Life Sciences and Biotechnology, South Asian University, New Delhi, Delhi, India Edited by: Brain inflammation is a common occurrence following responses to varied insults such Rosanna Parlato, Ulm University, as bacterial infections, stroke, traumatic brain injury and neurodegenerative disorders. Germany A common mediator for these varied inflammatory responses is prostaglandin E2 Reviewed by: Hermona Soreq, The Hebrew (PGE2), produced by the enzymatic activity of cyclooxygenases (COX) 1 and 2. Previous University of Jerusalem, Israel attempts to reduce neuronal inflammation through COX inhibition, by use of nonsteroidal Mohamed Jaber, University of anti-inflammatory drugs (NSAIDs), have met with limited success. We are proposing the Poitiers, France two-hit model for neuronal injury—an initial localized inflammation mediated by PGE2 *Correspondence: (first hit) and the simultaneous release of adenosine triphosphate (ATP) by injured cells Ravi Shankar Akundi, Neuroinflammation Research (second hit), which significantly enhances the inflammatory response through increased Laboratory, Faculty of Life Sciences synthesis of PGE2. Several evidences on the role of exogenous ATP in inflammation have and Biotechnology, South Asian been reported, including contrary instances where extracellular ATP reduces inflammatory University, Akbar Bhawan, events. In this review, we will examine the current literature on the role of P2 receptors, Chanakyapuri, New Delhi—110021, Delhi, India to which ATP binds, in modulating inflammatory reactions during neurodegeneration.