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Analyses Of The Involvement Of Altered Response To Gravity 1 Arg1 And Its Paralogs In Gravitropism Of Arabidopsis Thaliana
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Book Synopsis Analyses of the Involvement of Altered Response to Gravity 1 (ARG1) and Its Paralogs in Gravitropism of Arabidopsis Thaliana by : Kanokporn Boonsirichai
Download or read book Analyses of the Involvement of Altered Response to Gravity 1 (ARG1) and Its Paralogs in Gravitropism of Arabidopsis Thaliana written by Kanokporn Boonsirichai and published by . This book was released on 2003 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Cellular Mechanisms of Gravitropism in ARG1 (altered Response to Gravity) Mutants of Arabidopsis Thaliana by : Neela Shiva Kumar
Download or read book Cellular Mechanisms of Gravitropism in ARG1 (altered Response to Gravity) Mutants of Arabidopsis Thaliana written by Neela Shiva Kumar and published by . This book was released on 2008 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt: Many studies have been conducted in an effort to understand the mechanisms involved in gravitropism. Gravity perception in plants occurs by the sedimentation of starch-filled plastids termed statoliths. These statoliths are located in the endodermal cells of stem-like organs and columella cells of the root cap. Plastids play an important role during the graviperception mechanism in plants in that they act as gravity sensors in the roots, hypocotyls and inflorescence stems of flowering plants. Gravity perception leads to signal transduction that eventually results in tropic curvature in plants. ARG1 (altered response to gravity) is a gene involved in gravitropism and encodes a DnaJ-like protein, suggesting its possible interaction with the cytoskeleton. We investigated whether the arg1 mutation affects gravitropism by modulating plastid sedimentation in gravity perceiving cells in Arabidopsis thaliana. By using cryofixation procedures and light microscopic studies, we have determined that ARG1 affects gravitropism in hypocotyls by reducing the plastid sedimentation process. The arg1-2 mutant exhibited reduced and delayed gravitropism in roots, shoots, and inflorescence stems in both light- and dark-grown conditions. We performed light microscopic studies of plastid movement in the gravity-perceiving statocytes (endodermal cells) of hypocotyls of arg1-2 and WT seedlings to better characterize the role of ARG1 in gravitropism. Cryofixation and freeze substitution procedures were used since these methods provide a reliable indication of rapid cellular events within the statocytes. We found that sedimentation of plastids in response to gravity in statocytes of the arg1-2 mutant was reduced and ARG1 affects gravitropism by reducing plastid movement/sedimentation, a process known to be essential for early phases of signaling cascades in the statocytes. The precise location of ARG1 protein within the columella cells has been further investigated by high resolution electron microscopy and indirect immunogold labeling suitable for Arabidopsis roots. These studies confirm that ARG1 is found specifically localized to the components of the endomembrane system such as Golgi apparatus, endoplasmic reticulum, secretory vesicles, and that this protein plays a key role in gravitropism. The significance of our study is that we have elucidated multiple roles of ARG1 both in gravity perception and signal transduction phase in statocytes.
Book Synopsis Investigating the Function of ARG1 and ARL2 as Gravity Signal Transducers in Arabidopsis Thaliana by : Benjamin R. Harrison
Download or read book Investigating the Function of ARG1 and ARL2 as Gravity Signal Transducers in Arabidopsis Thaliana written by Benjamin R. Harrison and published by . This book was released on 2007 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Dissertation Abstracts International by :
Download or read book Dissertation Abstracts International written by and published by . This book was released on 2004 with total page 772 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Plant Cell Biology by : Nicholas Harris
Download or read book Plant Cell Biology written by Nicholas Harris and published by Oxford University Press. This book was released on 1994 with total page 329 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plant cell biologists seek to characterize the principles underlying complex phenomena such as growth and differentiation and to define the ways in which plant cells respond to external and internal stimuli. This book discusses established techniques and presents some exciting advances that will have a major impact on the field in the future. The book begins with a detailed discussion of methods and protocols for viewing, staining, and localizing cell components. Subsequent chapters cover topics such as localizing specific nucleic acid sequences and proteins, protoplast research, wall analysis, plant cytoskeleton research, isolation and use of intact chloroplasts and thylakoids, and the measurement of ions and solutes within plant cells. Plant Cell Biology: A Practical Approach provides both newcomers and experienced researchers with a comprehensive practical guide to the subject.
Book Synopsis Plant Gravitropism by : Elison B. Blancaflor
Download or read book Plant Gravitropism written by Elison B. Blancaflor and published by . This book was released on 2022 with total page 323 pages. Available in PDF, EPUB and Kindle. Book excerpt: This updated and expanded edition explores key methodologies to study the fascinating phenomenon of how plants readjust their growth toward gravity. In addition to the protocols delivering broad applications for gaining insight into other plant physiological processes, this new volume also focuses on techniques involving plants in space or the use of microgravity analogs to study plant biological phenomenon. Written for the highly successful Methods in Molecular Biology series, chapters include introductions to their respective topics, lists of the necessary materials and reagents, step-by-step, readily reproducible laboratory protocols, and tips on troubleshooting and avoiding known pitfalls. Authoritative and cutting-edge, Plant Gravitropism: Methods and Protocols, Second Edition serves as an ideal guide for researchers studying the cellular, molecular, and biochemical networks that plants use to translate environmental stimuli into a growth response.
Download or read book The Cytoskeleton written by and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on the plant cytoskeleton and its various cross-talks with other cellular components leading to its role in plant growth and development. It not only allows the geometric and signaling dimensions of cells, but is also very important in physiological processes. The book discusses the recent studies showing the role of actin and microtubule cytoskeleton interactions in cell-wall assembly and dynamics. The authors examine the role of both microtubules in the mechanics of plant cells, and actin filaments in the motility of chloroplasts. Based on recent advances in the study of the acto-myosin complex using high-resolution microscopy, they propose a new model for intracellular transport in plants. Exploring an almost-forgotten field of bioelectricity in the context of the cytoskeleton, the book highlights connections between the dynamic actin filaments and the bioelectricity of membranes and demonstrates that the plant cytoskeleton is involved in the distribution of plant hormones. Lastly, it addresses the role of endomembrane -cytoskeleton interactions to show the importance of the cytoskeleton in organelle morphogenesis and cellular functions. Studies in various plant models have shown how the actin filament and microtubules control and coordinate plant cell growth and development. This book summarizes the mechanisms underlying these functions.
Book Synopsis Markov Chain Monte Carlo Methods for Global Optimization by : Seksan Kiatsupaibul
Download or read book Markov Chain Monte Carlo Methods for Global Optimization written by Seksan Kiatsupaibul and published by . This book was released on 2000 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Foreign Portfolio Investment, and Inflation in Emerging Stock Markets by : Pichet Jaensubhakij
Download or read book Foreign Portfolio Investment, and Inflation in Emerging Stock Markets written by Pichet Jaensubhakij and published by . This book was released on 1998 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Functional Studies of the Plasmodium Falciparum Translationally Controlled Tumor Protein by : Jamaree Bhisutthibhan
Download or read book Functional Studies of the Plasmodium Falciparum Translationally Controlled Tumor Protein written by Jamaree Bhisutthibhan and published by . This book was released on 2000 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Structural, Electronic, and Optical Properties of Narrow Gap Compound Semiconductors by : Xiaojun Weng
Download or read book Structural, Electronic, and Optical Properties of Narrow Gap Compound Semiconductors written by Xiaojun Weng and published by . This book was released on 2003 with total page 524 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Controversy Over Stem Cell Research and Medical Cloning by : Matthew C. Nisbet
Download or read book The Controversy Over Stem Cell Research and Medical Cloning written by Matthew C. Nisbet and published by . This book was released on 2003 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Law, Morality, and International Armed Intervention by : Mourtada Deme
Download or read book Law, Morality, and International Armed Intervention written by Mourtada Deme and published by Routledge. This book was released on 2013-10-14 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt: International law is often manipulated in the debate about humanitarian intervention. The Liberian case provides an opportunity to challenge the UN and The Economic Community of West African States' (ECOWAS') new approach. ECOWAS and the UN's justifications for moving away from the current norms are flawed. No enlightened person would disagree with the values of peace, democracy, human rights, and economic development. This book, however, explores whether these goals be pursued within the current framework or outside it.
Book Synopsis Redefining Nature by : Pinkaew Leungaramsri
Download or read book Redefining Nature written by Pinkaew Leungaramsri and published by . This book was released on 2002 with total page 257 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Signal Transduction from the Endoplasmic Reticulum to the Nucleus in Mammalian Cells by : Witoon Tirasophon
Download or read book Signal Transduction from the Endoplasmic Reticulum to the Nucleus in Mammalian Cells written by Witoon Tirasophon and published by . This book was released on 1999 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis X-ray Crystal Structure of Human VH1-related Dual Specificity Phosphatase by : Jirundon Yuvaniyama
Download or read book X-ray Crystal Structure of Human VH1-related Dual Specificity Phosphatase written by Jirundon Yuvaniyama and published by . This book was released on 1997 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Thirst and Rehydration in Dehydrated Horses by : Prawit Butudom
Download or read book Thirst and Rehydration in Dehydrated Horses written by Prawit Butudom and published by . This book was released on 2002 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt:
