P K Hepler

Summary

Affiliation: University of Massachusetts
Country: USA

Publications

  1. doi request reprint Calcium entry into pollen tubes
    Peter K Hepler
    Biology Department, University of Massachusetts, Amherst, MA 01003, USA
    Trends Plant Sci 17:32-8. 2012
  2. pmc Timing is everything: early degradation of abscission layer is associated with increased seed shattering in U.S. weedy rice
    Carrie S Thurber
    Biology Department, University of Massachusetts, Amherst, MA 01003, USA
    BMC Plant Biol 11:14. 2011
  3. ncbi request reprint Polarized cell growth in higher plants
    P K Hepler
    Department of Biology, University of Massachusetts, Morrill Science Center III, Amherst, Massachusetts 01003, USA
    Annu Rev Cell Dev Biol 17:159-87. 2001
  4. pmc Calcium: a central regulator of plant growth and development
    Peter K Hepler
    Department of Biology Plant Biology Graduate Program University of Massachusetts Amherst, MA 01003, USA
    Plant Cell 17:2142-55. 2005
  5. doi request reprint Calcium at the cell wall-cytoplast interface
    Peter K Hepler
    Department of Biology, University of Massachusetts, Amherst, MA 01003, USA
    J Integr Plant Biol 52:147-60. 2010
  6. pmc Roles for kinesin and myosin during cytokinesis
    Peter K Hepler
    Department of Biology, University of Massachusetts, Amherst, MA 01003, USA
    Philos Trans R Soc Lond B Biol Sci 357:761-6. 2002
  7. pmc The kinesin-like calmodulin binding protein is differentially involved in cell division
    J W Vos
    Biology Department, University of Massachusetts, Amherst, Massachusetts 01003, USA
    Plant Cell 12:979-90. 2000
  8. pmc The regulation of actin organization by actin-depolymerizing factor in elongating pollen tubes
    Christine Y Chen
    Molecular and Cell Biology Program, University of Massachusetts, Amherst, Massachusetts 01003, USA
    Plant Cell 14:2175-90. 2002
  9. pmc Actin polymerization is essential for pollen tube growth
    L Vidali
    Biology Department, Molecular and Cellular Biology Program, University of Massachusetts, Amherst, Massachusetts 01003, USA
    Mol Biol Cell 12:2534-45. 2001
  10. ncbi request reprint Actin and pollen tube growth
    L Vidali
    Biology Department, University of Massachusetts, Amherst, MA 01003, USA
    Protoplasma 215:64-76. 2001

Collaborators

Detail Information

Publications40

  1. doi request reprint Calcium entry into pollen tubes
    Peter K Hepler
    Biology Department, University of Massachusetts, Amherst, MA 01003, USA
    Trends Plant Sci 17:32-8. 2012
    ..We also briefly draw attention to uptake mechanisms that restrict and shape the calcium signature in the growing pollen tube...
  2. pmc Timing is everything: early degradation of abscission layer is associated with increased seed shattering in U.S. weedy rice
    Carrie S Thurber
    Biology Department, University of Massachusetts, Amherst, MA 01003, USA
    BMC Plant Biol 11:14. 2011
    ....
  3. ncbi request reprint Polarized cell growth in higher plants
    P K Hepler
    Department of Biology, University of Massachusetts, Morrill Science Center III, Amherst, Massachusetts 01003, USA
    Annu Rev Cell Dev Biol 17:159-87. 2001
    ..Elucidation of the interactions and of the dynamics of these different components is providing unique insight into the mechanisms of polarized growth...
  4. pmc Calcium: a central regulator of plant growth and development
    Peter K Hepler
    Department of Biology Plant Biology Graduate Program University of Massachusetts Amherst, MA 01003, USA
    Plant Cell 17:2142-55. 2005
  5. doi request reprint Calcium at the cell wall-cytoplast interface
    Peter K Hepler
    Department of Biology, University of Massachusetts, Amherst, MA 01003, USA
    J Integr Plant Biol 52:147-60. 2010
    ..Together they provide evidence for a rich and multifaceted system of communication between the cytoplast and cell wall, with Ca(2+) as a carrier of information...
  6. pmc Roles for kinesin and myosin during cytokinesis
    Peter K Hepler
    Department of Biology, University of Massachusetts, Amherst, MA 01003, USA
    Philos Trans R Soc Lond B Biol Sci 357:761-6. 2002
    ..They are also not the principal motors involved in vesicle transport...
  7. pmc The kinesin-like calmodulin binding protein is differentially involved in cell division
    J W Vos
    Biology Department, University of Massachusetts, Amherst, Massachusetts 01003, USA
    Plant Cell 12:979-90. 2000
    ..During metaphase and telophase, we suggest that its activity is downregulated...
  8. pmc The regulation of actin organization by actin-depolymerizing factor in elongating pollen tubes
    Christine Y Chen
    Molecular and Cell Biology Program, University of Massachusetts, Amherst, Massachusetts 01003, USA
    Plant Cell 14:2175-90. 2002
    ....
  9. pmc Actin polymerization is essential for pollen tube growth
    L Vidali
    Biology Department, Molecular and Cellular Biology Program, University of Massachusetts, Amherst, Massachusetts 01003, USA
    Mol Biol Cell 12:2534-45. 2001
    ....
  10. ncbi request reprint Actin and pollen tube growth
    L Vidali
    Biology Department, University of Massachusetts, Amherst, MA 01003, USA
    Protoplasma 215:64-76. 2001
    ..While much remains to be discovered, it is nevertheless apparent that actin MFs play a fundamental role in controlling apical cell growth in pollen tubes...
  11. ncbi request reprint Effects of Yariv phenylglycoside on cell wall assembly in the lily pollen tube
    S Roy
    Department of Botany and Plant Science, University of California, Riverside, CA 92521, USA
    Planta 204:450-8. 1998
    ..The data confirm the importance of AGPs in pollen tube growth and emphasize their role in the deposition of cell wall subunits within the previously synthesized cell wall...
  12. ncbi request reprint Physiological elevations in cytoplasmic free calcium by cold or ion injection result in transient closure of higher plant plasmodesmata
    T L Holdaway-Clarke
    School of Biological Sciences A12, The University of Sydney, N S W 2006, Australia
    Planta 210:329-35. 2000
    ..Our results thus indicate that higher plant plasmodesmata respond quickly to physiological changes in [Ca(2+)](cyt)...
  13. pmc Rab2 GTPase regulates vesicle trafficking between the endoplasmic reticulum and the Golgi bodies and is important to pollen tube growth
    Alice Y Cheung
    Department of Biochemistry and Molecular Biology, University of Massachusetts, Amherst, MA 01003, USA
    Plant Cell 14:945-62. 2002
    ....
  14. pmc Pectin methylesterase, a regulator of pollen tube growth
    Maurice Bosch
    Biology Department, University of Massachusetts, Amherst, Massachusetts 01003, USA
    Plant Physiol 138:1334-46. 2005
    ....
  15. ncbi request reprint Silencing of the tobacco pollen pectin methylesterase NtPPME1 results in retarded in vivo pollen tube growth
    Maurice Bosch
    Biology Department, University of Massachusetts, Amherst, 01003, USA
    Planta 223:736-45. 2006
    ..A relatively minor disturbance of this equilibrium, as caused by NtPPME1 silencing, compromises pollen tube growth...
  16. pmc Lifeact-mEGFP reveals a dynamic apical F-actin network in tip growing plant cells
    Luis Vidali
    Department of Biology, University of Massachusetts, Amherst, Massachusetts, United States of America
    PLoS ONE 4:e5744. 2009
    ..In previous studies, fluorescent probes derived from actin-binding proteins often alter growth, cause actin bundling and fail to resolve actin microfilaments...
  17. ncbi request reprint The role of nod factor substituents in actin cytoskeleton rearrangements in Phaseolus vulgaris
    Luis Cardenas
    Departamento de Biologia Molecular de Plantas, Instituto de Biotecnologia, UNAM Apartado Postal 510 3, Cuernavaca Morelos 62271, Mexico
    Mol Plant Microbe Interact 16:326-34. 2003
    ....
  18. pmc Exocytosis precedes and predicts the increase in growth in oscillating pollen tubes
    Sylvester T McKenna
    Department of Biology, Long Island University, Brooklyn, New York 11201, USA
    Plant Cell 21:3026-40. 2009
    ..Exocytosis emerges as a prime candidate for the initiation and regulation of oscillatory pollen tube growth...
  19. ncbi request reprint Effect of extracellular calcium, pH and borate on growth oscillations in Lilium formosanum pollen tubes
    Terena L Holdaway-Clarke
    Biology Department, Morrill South, University of Massachusetts, 611 North Pleasant Street, Amherst, MA 01003, USA
    J Exp Bot 54:65-72. 2003
    ....
  20. ncbi request reprint Actin polymerization promotes the reversal of streaming in the apex of pollen tubes
    Luis Cardenas
    Biology Department, and the Plant Biology Graduate Program, Morrill Science Center, University of Massachusetts, Amherst, USA
    Cell Motil Cytoskeleton 61:112-27. 2005
    ..Taken together, our results support the idea that actin polymerization promotes reversal of streaming in the apex of the lily pollen tube...
  21. ncbi request reprint Differential organelle movement on the actin cytoskeleton in lily pollen tubes
    Alenka Lovy-Wheeler
    Department of Biology and Plant Biology Graduate Program, Morrill Science Center III, University of Massachusetts, Amherst, Massachusetts 01003, USA
    Cell Motil Cytoskeleton 64:217-32. 2007
    ..We have not been able to decipher an oscillatory pattern in vacuole motion. Because this motion is dependent on actin and not tubulin, we think this is due to a different myosin from that which drives the ER and mitochondria...
  22. ncbi request reprint Aberrant cell plate formation in the Arabidopsis thaliana microtubule organization 1 mutant
    Eleftherios P Eleftheriou
    Biology Department, University of Massachusetts, Amherst, MA 01003, USA
    Plant Cell Physiol 46:671-5. 2005
    ..Phragmoplast microtubules are abundant but organized aberrantly. Thus, MOR1 functions in both phragmoplast and cortical arrays...
  23. ncbi request reprint Actomyosin promotes cell plate alignment and late lateral expansion in Tradescantia stamen hair cells
    Tasha M Molchan
    The University of Massachusetts at Amherst, Biology Department, 221 Morrill Science Center III, Amherst, MA 01003, USA
    Planta 214:683-93. 2002
    ..Taken together, these results implicate myosin in the control of cell plate expansion and alignment...
  24. ncbi request reprint Inositol 1,4,5 trisphosphate is inactivated by a 5-phosphatase in stamen hair cells of Tradescantia
    A L DePass
    Department of Biology, Long Island University Brooklyn, NY 11201, USA
    Planta 213:518-24. 2001
    ..We conclude that the 5-phosphatase pathway is the preferred pathway for Ins(1,4,5)P3 inactivation in the stamen hair cells of Tradescantia...
  25. ncbi request reprint Enhanced fixation reveals the apical cortical fringe of actin filaments as a consistent feature of the pollen tube
    Alenka Lovy-Wheeler
    Department of Biology and Plant Biology Graduate Program, Morrill Science Center III, University of Massachusetts, 611 North Pleasant St, Amherst, MA 01003 9297, USA
    Planta 221:95-104. 2005
    ....
  26. pmc Under pressure, cell walls set the pace
    Lawrence J Winship
    Hampshire College, School of Natural Science, Amherst, MA 01002, USA
    Trends Plant Sci 15:363-9. 2010
    ..We have recently demonstrated concomitant changes in the apical cell wall that account fully for observed changes in growth rate...
  27. pmc Oscillatory increases in alkalinity anticipate growth and may regulate actin dynamics in pollen tubes of lily
    Alenka Lovy-Wheeler
    Department of Biology and Plant Biology Graduate Program, University of Massachusetts, Amherst, 01003, USA
    Plant Cell 18:2182-93. 2006
    ..As pH stabilizes and increases, the activity of ADF/AIP again increases, repeating the cycle of events...
  28. ncbi request reprint Plant GTPases: the Rhos in bloom
    A H Valster
    The Biology Dept, University of Massachusetts, Morrill Science Center III, Amherst, MA 01003, USA
    Trends Cell Biol 10:141-6. 2000
    ..These new findings define certain core properties that might be common to members of this protein family in all eukaryotes...
  29. ncbi request reprint Calcium gradients in conifer pollen tubes; dynamic properties differ from those seen in angiosperms
    Mark D Lazzaro
    Department of Biology, College of Charleston, Charleston, SC 29424, USA
    J Exp Bot 56:2619-28. 2005
    ..When taken together these data show a unique interplay in Picea abies pollen tubes between intracellular calcium and the motile processes controlling cellular organization...
  30. pmc Oscillatory growth in lily pollen tubes does not require aerobic energy metabolism
    Caleb M Rounds
    Department of Biology, University of Massachusetts, Amherst, Massachusetts 01003, USA
    Plant Physiol 152:736-46. 2010
    ..These data suggest that oscillatory growth depends not on a single oscillatory pacemaker but rather is an emergent property arising from a number of stable limit cycles...
  31. pmc Pollen tube growth oscillations and intracellular calcium levels are reversibly modulated by actin polymerization
    Luis Cardenas
    Departamento de Biología Molecular de Plantas Instituto de Biotecnología, Universidad Nacional Autonoma de Mexico, Cuernavaca, Morelos 62271, Mexico
    Plant Physiol 146:1611-21. 2008
    ..We suggest that actin polymerization promotes pollen tube growth through extension of the cortical actin fringe, which serves as a track to target cell wall vesicles to preferred exocytotic sites on the plasma membrane...
  32. ncbi request reprint Calmodulin activity and cAMP signalling modulate growth and apical secretion in pollen tubes
    Cláudia Rato
    Departamento de Biologia Vegetal, Faculdade de Ciencias de Lisboa, ICAT, Campo Grande, 1749 016 Lisbon, Portugal
    Plant J 38:887-97. 2004
    ..Our data thus suggest that pollen tube growth and orientation depend on an intricate cross-talk between multiple signalling pathways in which CaM is a key element...
  33. ncbi request reprint Involvement of extracellular calcium influx in the self-incompatibility response of Papaver rhoeas
    Vernonica E Franklin-Tong
    School of Biosciences, University of Birmingham, Edgbaston, Birmingham, B15 TT, UK
    Plant J 29:333-45. 2002
    ..This demonstration of SI-induced Ca2+ influx suggests a role for influx of extracellular Ca2+ in the SI response...
  34. ncbi request reprint Profilin inhibits pollen tube growth through actin-binding, but not poly-L-proline-binding
    Sylvester T McKenna
    Biology Department, Long Island University, Brooklyn, NY 11201, USA
    Planta 218:906-15. 2004
    ..We conclude that along with actin-binding activity of profilin, PLP-containing proteins also participate in the growth control process, and can do so independently of binding to profilin...
  35. pmc Magnitude and direction of vesicle dynamics in growing pollen tubes using spatiotemporal image correlation spectroscopy and fluorescence recovery after photobleaching
    Jérôme Bove
    Departement de sciences biologiques, Universite de Montreal, Montreal, Quebec, Canada H1X 2B2
    Plant Physiol 147:1646-58. 2008
    ..Therefore, we propose that more than one passage into the apex may be needed for many vesicles before they fuse to the plasma membrane and deliver their contents...
  36. ncbi request reprint Plant 115-kDa actin-filament bundling protein, P-115-ABP, is a homologue of plant villin and is widely distributed in cells
    Etsuo Yokota
    Department of Life Science, Graduate School of Science, Himeji Institute of Technology, Harima Science Park City, Hyogo, 678 1297 Japan
    Plant Cell Physiol 44:1088-99. 2003
    ..These results indicated that plant villins are widely distributed and involved in the organization of actin filaments into bundles throughout the plant kingdom...
  37. ncbi request reprint The role of actin filaments in the gravitropic response of snapdragon flowering shoots
    Haya Friedman
    Department of Postharvest Science of Fresh Produce, Agricultural Research Organization, The Volcani Center, 50250 Bet Dagan, Israel
    Planta 216:1034-42. 2003
    ..The actin cytoskeleton within the shoot cells is necessary for normal amyloplast displacement upon gravistimulation, which leads to the gravitropic bending...
  38. pmc NAD(P)H oscillates in pollen tubes and is correlated with tip growth
    Luis Cardenas
    Departamento de Biologia Molecular de Plantas, Instituto de Biotecnologia, Universidad Nacional Autonoma de Mexico, Morelos 62271, Mexico
    Plant Physiol 142:1460-8. 2006
    ..Finally, staining with 5-(and-6)-chloromethyl-2',7'-dichlorohydrofluorescein acetate indicates that reactive oxygen species are most abundant in the region where mitochondria accumulate and where NAD(P)H fluorescence is maximal...
  39. pmc Pectin methylesterases and pectin dynamics in pollen tubes
    Maurice Bosch
    School of Biosciences, University of Birmingham, UK
    Plant Cell 17:3219-26. 2005
  40. ncbi request reprint UV-A induces two calcium waves in Physcomitrella patens
    Edward B Tucker
    Natural Science Department, Baruch College, City University of New York, 17 Lexington Avenue, New York, NY 10010, USA
    Plant Cell Physiol 46:1226-36. 2005
    ..The characteristics of these Ca2+ waves were dependent upon cryptochrome and phototropin. Blue/UV-A signaling in P. patens appears to differ from that in Arabidopsis...