Research Topics
Genomes and GenesSpecies | S M AssmannSummaryAffiliation: Pennsylvania State University Country: USA Publications
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Publications
Whole proteome identification of plant candidate G-protein coupled receptors in Arabidopsis, rice, and poplar: computational prediction and in-vivo protein couplingTimothy E Gookin
Department of Biology, The Pennsylvania State University, Mueller Laboratory, University Park, PA 16802, USA
Genome Biol 9:R120. 2008....
Common and unique elements of the ABA-regulated transcriptome of Arabidopsis guard cellsRui Sheng Wang
Department of Physics, Pennsylvania State University, University Park, PA 16802, USA
BMC Genomics 12:216. 2011....
Heterotrimeric and unconventional GTP binding proteins in plant cell signalingSarah M Assmann
Biology Department, Pennsylvania State University, 208 Mueller Laboratory, University Park, PA 16802, USA
Plant Cell 14:S355-73. 2002
G proteins Go green: a plant G protein signaling FAQ sheetSarah M Assmann
Biology Department, Pennsylvania State University, 208 Mueller Laboratory, University Park, PA 16802, USA
Science 310:71-3. 2005..Pathways in Science's Signal Transduction Knowledge Environment Connections Maps database provide details about the emerging roles of G proteins in several cellular processes of plants...
G protein signaling in the regulation of Arabidopsis seed germinationSarah M Assmann
Biology Department, Penn State University, 208 Mueller Laboratory, University Park, PA 16802, USA
Sci STKE 2005:cm11. 2005..In Arabidopsis, analysis of mutant plants has implicated heterotrimeric guanine nucleotide-binding protein (G protein) components in regulation of seed germination by all three of these hormones...
G protein signaling in the regulation of rice seed germinationSarah M Assmann
Biology Department, Penn State University, 208 Mueller Laboratory, University Park, PA 16802, USA
Sci STKE 2005:cm12. 2005....
G protein regulation of disease resistance during infection of rice with rice blast fungusSarah M Assmann
Biology Department, Penn State University, 208 Mueller Laboratory, University Park, PA 16802, USA
Sci STKE 2005:cm13. 2005..These results implicate heterotrimeric guanine nucleotide-binding proteins (G proteins) as important players in plant pathogen response...
OPEN STOMATA1 opens the door to ABA signaling in Arabidopsis guard cellsSarah M Assmann
Biology Department, Penn State University, University Park, PA 16802 5301, USA
Trends Plant Sci 8:151-3. 2003..A recent report shows that mutations in the OST1 gene, encoding a serine-threonine protein kinase, render Arabidopsis thaliana guard cells insensitive to abscisic acid, such that stomata remain open in the presence of this phytohormone...
From milliseconds to millions of years: guard cells and environmental responsesS M Assmann
Biology Department, Pennsylvania State University, 208 Mueller Laboratory, University Park, Pennsylvania 16802 5301, USA
Curr Opin Plant Biol 4:421-8. 2001..Recent studies on (de)phosphorylation mechanisms have provided new information on how guard cells respond to abscisic acid and blue light...
Plant G proteins, phytohormones, and plasticity: three questions and a speculationSarah M Assmann
Biology Department, Pennsylvania State University, 208 Mueller Laboratory, University Park, PA 16802 5301, USA
Sci STKE 2004:re20. 2004..A possible role of G protein signaling in the control of phenotypic plasticity, a hallmark of plant growth, is also discussed...
G protein regulation of ion channels and abscisic acid signaling in Arabidopsis guard cellsX Q Wang
Biology Department, Pennsylvania State University, 208 Mueller Laboratory, University Park, PA 16802 5301, USA
Science 292:2070-2. 2001..Manipulation of G protein status in guard cells may provide a mechanism for controlling plant water balance...
G-protein complex mutants are hypersensitive to abscisic acid regulation of germination and postgermination developmentSona Pandey
Department of Biology, Pennsylvania State University, University Park, Pennsylvania 16802 5301, USA
Plant Physiol 141:243-56. 2006..Thus, cell- and tissue-specific functional interaction in response to a given signal such as ABA may determine the distinct pathways regulated by the individual members of the G-protein complex...
Brassinosteroids and plant function: some clues, more puzzlesL L Haubrick
Pennsylvania State University, Department of Biology, 208 Mueller Laboratory, University Park, PA 16802, USA
Plant Cell Environ 29:446-57. 2006..In contrast, little is known about how the sensing of BRs is connected to specific physiological responses such as stress resistance. There remain many open questions about how these connections are made...
Arabidopsis extra-large G proteins (XLGs) regulate root morphogenesisLei Ding
Biology Department, Penn State University, University Park, Pennsylvania 16802, USA
Plant J 53:248-63. 2008..As plant-specific proteins, regulatory mechanisms of XLGs may differ from those of conventional Galphas...
The Arabidopsis putative G protein-coupled receptor GCR1 interacts with the G protein alpha subunit GPA1 and regulates abscisic acid signalingSona Pandey
Biology Department, Pen State University, University Park, Pensylvania, 16802, USA
Plant Cell 16:1616-32. 2004..Because gpa1 mutants exhibit insensitivity in aspects of guard cell ABA and S1P responses, whereas gcr1 mutants exhibit hypersensitivity, GCR1 may act as a negative regulator of GPA1-mediated ABA responses in guard cells...
Plant heterotrimeric G protein function: insights from Arabidopsis and rice mutantsLaetitia Perfus-Barbeoch
Biology Department, Penn State University, University Park, Pennsylvania 16802-5301, USA
Curr Opin Plant Biol 7:719-31. 2004..Results and concepts emerging from recent phenotypic analyses of G-protein component mutants in Arabidopsis and rice are adding to our understanding of G-protein mechanisms and functions in higher plants...
ABA-regulated G protein signaling in Arabidopsis guard cells: a proteomic perspectiveZhixin Zhao
Biology Department, 208 Mueller Laboratory, Penn State University, University Park, Pennsylvania 16802, USA
J Proteome Res 9:1637-47. 2010..These results exemplify how iTRAQ can be used to quantitatively study single cell signaling pathways in Arabidopsis...
Regulation of abscisic acid-induced stomatal closure and anion channels by guard cell AAPK kinaseJ Li
Department of Biology, The Pennsylvania State University, 208 Mueller Laboratory, University Park, PA 16802, USA
Science 287:300-3. 2000..This information should allow cell-specific, targeted biotechnological manipulation of crop water status...
Transport proteins of the plant plasma membraneS M Assmann
Biology Department, Pennsylvania State University, 208 Mueller Laboratory, University Park, PA 16802, USA
Curr Opin Cell Biol 8:458-67. 1996..Recently developed molecular and genetic approaches have enabled the identification and functional characterization of novel genes encoding ion channels, ion carriers, and water channels of the plant plasma membrane...
The alpha-subunit of the Arabidopsis heterotrimeric G protein, GPA1, is a regulator of transpiration efficiencySarah E Nilson
Biology Department, Pennsylvania State University, University Park, Pennsylvania 16802 5301, USA
Plant Physiol 152:2067-77. 2010..GPA1 promoter::beta-glucuronidase lines indicate that the GPA1 promoter is active in the stomatal cell lineage, further supporting a function for GPA1 in stomatal development in true leaves...
Predicting essential components of signal transduction networks: a dynamic model of guard cell abscisic acid signalingSong Li
Biology Department, Pennsylvania State University, University Park, Pennsylvania, USA
PLoS Biol 4:e312. 2006..Our method can be readily applied to other biological signaling networks to identify key regulatory components in systems where quantitative information is limited...
Abscisic acid regulation of guard-cell K+ and anion channels in Gbeta- and RGS-deficient Arabidopsis linesLiu Min Fan
Biology Department, Penn State University, University Park, PA 16802 5301
Proc Natl Acad Sci U S A 105:8476-81. 2008..Our studies highlight unique aspects of ion channel regulation by heterotrimeric G proteins and relate these aspects to stomatal aperture control, a key determinant of plant biomass acquisition and drought tolerance...
Two novel GPCR-type G proteins are abscisic acid receptors in ArabidopsisSona Pandey
Biology Department, 208 Mueller Laboratory, Penn State University, University Park, PA 16802, USA
Cell 136:136-48. 2009..We propose that GTG proteins function both as a new type of G protein and as a class of membrane-localized ABA receptors...
Guard cells: a dynamic signaling modelLiu-Min Fan
Biology Department, Pennsylvania State University, 208 Mueller Laboratory, University Park, Pennsylvania 16802-5301, USA
Curr Opin Plant Biol 7:537-46. 2004..A deeper understanding of the biochemical mechanisms governing the response of guard cells to blue light has been gained, and new insights have been garnered regarding roles of the extracellular matrix in stomatal regulation...
The plant innate immunity response in stomatal guard cells invokes G-protein-dependent ion channel regulationWei Zhang
Biology Department, Penn State University, University Park, PA 16802 5301, USA
Plant J 56:984-96. 2008..These new findings provide insights into the largely elusive signaling process underlying PTI-associated guard cell responses...
Boolean modeling of transcriptome data reveals novel modes of heterotrimeric G-protein actionSona Pandey
Department of Biology, Pennsylvania State University, University Park, PA 16802, USA
Mol Syst Biol 6:372. 2010..Our method holds significant promise for analyzing analogous 'switch-like' signal transduction events in any organism...
Sphingolipid signalling in Arabidopsis guard cells involves heterotrimeric G proteinsSylvie Coursol
Department of Biology, Pennsylvania State University, 208 Mueller Laboratory, University Park, Pennsylvania 16802 5301, USA
Nature 423:651-4. 2003....
Hormone interactions in stomatal functionBiswa R Acharya
Biology Department, Pennsylvania State University, 208 Mueller Laboratory, University Park, PA 16802, USA
Plant Mol Biol 69:451-62. 2009..Here, we discuss the roles of different phytohormones and the effects of their interactions on guard cell physiology and function...
Regulation of root-wave response by extra large and conventional G proteins in Arabidopsis thalianaSona Pandey
Biology Department, Penn State University, University Park, PA 16802, USA
Plant J 55:311-22. 2008....
Kinetic analysis of the K(+)-selective outward rectifier in Arabidopsis mesophyll cells: a comparison with other plant speciesH Miedema
Dept of Biology, Pennsylvania State University, University Park 16802, USA
Plant Cell Physiol 41:209-17. 2000..As observed in other plant species, the activation kinetics of IK,out in Arabidopsis are sensitive to external K+: V1/2 shifts with EK but remains approximately 50 mV more positive than EK...
Heterotrimeric G proteins regulate reproductive trait plasticity in response to water availabilitySarah E Nilson
Biology Department, Pennsylvania State University, 208 Mueller Laboratory, University Park, PA 16802 5301, USA
New Phytol 185:734-46. 2010....
Overexpression of wound-responsive RNA-binding proteins induces leaf senescence and hypersensitive-like cell deathCha Young Kim
Biology Department, Penn State University, 208 Mueller Laboratory, University Park, PA 16802, USA
New Phytol 180:57-70. 2008..These results indicate that induction of UBA2 gene expression stimulates leaf yellowing and cell death phenotypes through senescence and defense response pathways...
Functional proteomics of Arabidopsis thaliana guard cells uncovers new stomatal signaling pathwaysZhixin Zhao
Biology Department, Pen State University, University Park, Pensylvania 16802, USA
Plant Cell 20:3210-26. 2008....
Modulation of an RNA-binding protein by abscisic-acid-activated protein kinaseJiaxu Li
Biology Department, The Pennsylvania State University, 208 Mueller Laboratory, University Park, Pennsylvania 16802, USA
Nature 418:793-7. 2002....
Characterization of the Arabidopsis heterotrimeric G proteinShiyu Wang
Department of Biology, Penn State University, University Park, Pennsylvania 16802, USA
J Biol Chem 283:13913-22. 2008....
Characterization of wound-responsive RNA-binding proteins and their splice variants in ArabidopsisJérôme Bove
Biology Department, Penn State University, 208 Mueller Laboratory, University Park, PA 16802, USA
Plant Mol Biol 67:71-88. 2008..Taken together, these results imply that the three UBA2 genes encode hnRNP-type nuclear RNA-binding proteins that function in a novel wound signal transduction pathway...
Roles of ion channels and transporters in guard cell signal transductionSona Pandey
Biology Department, Penn State University, 208 Mueller Laboratory, University Park, PA 16802, United States
FEBS Lett 581:2325-36. 2007....
The control of transpiration. Insights from ArabidopsisSarah E Nilson
Biology Department, Penn State University, University Park, Pennsylvania 16802, USA
Plant Physiol 143:19-27. 2007
Arabidopsis sphingosine kinase and the effects of phytosphingosine-1-phosphate on stomatal apertureSylvie Coursol
Department of Biology, Pennsylvania State University, University Park, Pennsylvania 16802 5301, USA
Plant Physiol 137:724-37. 2005....
Abscisic acid induces rapid subnuclear reorganization in guard cellsCarl K-Y Ng
Biology Department, Pennsylvania State University, University Park, Pennsylvania 16802, USA
Plant Physiol 134:1327-31. 2004
Discrete dynamic modeling with asynchronous update, or how to model complex systems in the absence of quantitative informationSarah M Assmann
Biology Department, Penn State University, University Park, PA, USA
Methods Mol Biol 553:207-25. 2009..The method also serves as a starting point from which more quantitative models can be developed as additional information becomes available...
Plants: the latest model system for G-protein researchAlan M Jones
Department of Biology, University of North Carolina, Chapel Hill, North Carolina 27599, USA
EMBO Rep 5:572-8. 2004..Nonetheless, recent studies on Arabidopsis thaliana have shown the importance of plant G-protein signalling in such fundamental processes as cell proliferation, hormone perception and ion-channel regulation...
GCR1 can act independently of heterotrimeric G-protein in response to brassinosteroids and gibberellins in Arabidopsis seed germinationJin Gui Chen
Department of Biology, University of North Carolina, Chapel Hill, North Carolina 27599 3280, USA
Plant Physiol 135:907-15. 2004....
Light regulation of stomatal movementKen Ichiro Shimazaki
Department of Biology, Faculty of Science, Kyushu University, Ropponmatsu, Fukuoka 810 8560, Japan
Annu Rev Plant Biol 58:219-47. 2007..Because the blue-light response of stomata appears to be strongly affected by red light, we discuss underlying mechanisms in the interaction between blue-light signaling and guard cell chloroplasts...
Ggamma1 + Ggamma2 not equal to Gbeta: heterotrimeric G protein Ggamma-deficient mutants do not recapitulate all phenotypes of Gbeta-deficient mutantsYuri Trusov
Plant Genetic Engineering Laboratory, Department of Botany, School of Integrative Biology, University of Queensland, Brisbane, Queensland 4072, Australia
Plant Physiol 147:636-49. 2008....
