15th International Conference on Arabidopsis Research - TAIR

More documents

Recommendations

Info

T13-019 DIURNAL CHANGES IN CYTOKININ LEVELS IN ARABIDOPSIS PLANTS Hoyerová K(1), Kamínek M.(1) 1-Institute of Experimental Botany ASCR, Rozvojová 135, CZ-16502 Prague 6, Czech Republic Changes of cytokinin/auxin ratio are decisive for induction of specific developmental processes in plant cells. Cytokinin levels with respect to auxin in aerial parts of plants can be affected by diurnal changes in rates of their biosynthesis and metabolism and also by the rate of their import from roots which represent the main site of cytokinin biosynthesis. The rate of cytokinin transport to shoots via xylem sap flow is influenced by environmental factors affecting transpiration namely by light and temperature. The aim of our research has been to determine the changes in cytokinin levels during the day/night cycle. Plants (Arabidopsis thaliana L. Columbia) were grown in hydroponics under 16h/8h day light) at 25 oC. Cultivation of plants under two different levels of relative air humidity (60% and 90%) allowed us to determine the effect of transpiration on cytokinin levels in aerial organs during the day/night cycle. Another set of plants was grown under green house condition in soil. 55 days old plants were harvested in 3 h intervals during one day/night cycle. Cytokinins were extracted separately from different plant organs using dual-mode solid phase extraction (Dobrev 2002) and determined by HPLC/MSn. Sixteen different cytokinin bases, ribosides and glucosides and four different cytokinin ribotides were identified and determined. Formation of isopentenyl-7-glucoside appeared to be the main way of down-regulation of physiologically active cytokinins in response to the temporal accumulation isoprenoid cytokinins. The importance of the day/night period for sampling of plant material for cytokinin analysis, effects of air humidity on cytokinin levels and differences in cytokinins in different plant organs will be discussed. References: Dobrev P., Kamínek M.: Fast and efficient separation of cytokinins from auxin and abscisic acid and their purification using mixed-mode solid-phase extraction, Journal of Chromatography A, 950 (2002) 21-29. Acknowledgements: Supported by the Grant Agency of the Czech Republic (grant No. 206/02/0967). T13 Others 15 th <strong>International</strong> <strong>Conference</strong> on Arabidopsis Research 2004 · Berlin
Authors Index
Page 1:
15 th International</strong
Page 4 and 5:
Imprint Abstract Book of the 15 th
Page 6 and 7:
Page 8 and 9:
Page 10 and 11:
The Meeting Sponsors www.affymetrix
Page 12 and 13:
Programme Overview Tuesday ECCA 9:0
Page 14 and 15:
Detailed Programme ECCR1 Interactio
Page 16 and 17:
Detailed Programme Wednesday ECCA 9
Page 18 and 19:
T01 Development 1 (Flower, Fertiliz
Page 20 and 21:
T01-027 EMBRYONIC FACTOR 1 (FAC1),
Page 22 and 23:
T01-053 Intercellular protein traff
Page 24 and 25:
T01-080 Identification of enhancers
Page 26 and 27:
T02-004 Length and width: Both cell
Page 28 and 29:
T02-031 A suppressor screening of j
Page 30 and 31:
T02-057 Genetic and biochemical evi
Page 32 and 33:
T02-084 Identifying Targets of Indu
Page 34 and 35:
T02-110 Expression of the bHLH gene
Page 36 and 37:
T03-015 Knock-out of the Mg-protopo
Page 38 and 39:
T03-042 DISTORTED2 encodes for the
Page 40 and 41:
T03-070 Towards a transcript profil
Page 42 and 43:
T04-009 Transcriptional Regulation
Page 44 and 45:
T04-035 Identification of sugar-reg
Page 46 and 47:
T04-060 Functional analysis of two
Page 48 and 49:
T04-087 A rice calcium binding prot
Page 50 and 51:
T04-111 Abiotic stress signaling an
Page 52 and 53:
T05-022 Searching For Novel Compone
Page 54 and 55:
T05-048 Bacillus as beneficial bact
Page 56 and 57:
T05-075 Identification of General a
Page 58 and 59:
T06-009 Natural Variation of Flower
Page 60 and 61:
T07 Metabolism (Primary, Secondary,
Page 62 and 63:
T07-025 gamma-aminobutyric acid (GA
Page 64 and 65:
T07-052 Systematic in-depth analysi
Page 66 and 67:
T07-077 Obtusifoliol 14alpha-demeth
Page 68 and 69:
T08-003 Patterning of plants by aux
Page 70 and 71:
T09-010 Functional identification o
Page 72 and 73:
T09-035 AtERF2 is a Positive Regula
Page 74 and 75:
T09-062 Functional characterization
Page 76 and 77:
T10-026 Laser microdissection: A to
Page 78 and 79:
T10-053 Identification of genetic r
Page 80 and 81:
T11-022 TAIR (The Arabidopsis Infor
Page 82 and 83:
T12-018 Altered apyrase activity in
Page 84 and 85:
T13-014 Functional Analysis of Arab
Page 87 and 88:
T01-001 AtBRM, an ATPase of the SNF
Page 89 and 90:
T01-005 PATTERN OF FUNCTIONAL EVOLU
Page 91 and 92:
T01-009 Molecular analysis of flora
Page 93 and 94:
T01-013 Roles of DELLA Proteins in
Page 95 and 96:
T01-017 Molecular variation of CONS
Page 97 and 98:
T01-021 Pollen specific MADS-box ge
Page 99 and 100:
T01-025 'Integument-led' seed growt
Page 101 and 102:
T01-029 Molecular mechanism of flor
Page 103 and 104:
T01-033 FLOWERING LOCUS T as a link
Page 105 and 106:
T01-037 Identification and characte
Page 107 and 108:
T01-041 Methods to identify in vivo
Page 109 and 110:
T01-045 Characterization of TSF, a
Page 111 and 112:
T01-049 ENHANCERS OF LUMINIDEPENDEN
Page 113 and 114:
T01-053 Intercellular protein traff
Page 115 and 116:
T01-057 Exploiting the non-flowerin
Page 117 and 118:
T01-061 TRANSPARENT TESTA1 controls
Page 119 and 120:
T01-065 STY genes and Auxin in Arab
Page 121 and 122:
T01-069 DAG1 and DAG2: two Arabidop
Page 123 and 124:
T01-073 Characterization of The van
Page 125 and 126:
T01-077 Functional analysis of SBP
Page 127 and 128:
T01-081 Characterization and mappin
Page 129 and 130:
T01-085 Patterns of Gene Expression
Page 131 and 132:
T01-089 LOV1 is a floral repressor
Page 133 and 134:
T01-093 SHI family genes redundantl
Page 135 and 136:
T01-097 The Arabidopsis formin AtFH
Page 137 and 138:
T01-101 Interaction of Polycomb-gro
Page 139:
T02 Development 2 (Shoot, Root)
Page 142 and 143:
T02-003 Arabidopsis auxin influx pr
Page 144 and 145:
T02-007 A novel class of Arabidopsi
Page 146 and 147:
T02-011 A model of Arabidopsis leaf
Page 148 and 149:
T02-015 Micro-RNA targeted TCP gene
Page 150 and 151:
T02-019 Modulation of light (phytoc
Page 152 and 153:
T02-023 FIC, a Factor Interacting w
Page 154 and 155:
T02-027 HORMONAL MEDIATION OF KNOX
Page 156 and 157:
T02-031 A suppressor screening of j
Page 158 and 159:
T02-035 ead1, an orthologue of a hu
Page 160 and 161:
T02-039 “Overexpression of CDK in
Page 162 and 163:
T02-043 Analysis of the distributio
Page 164 and 165:
T02-047 At1g36390 is highly conserv
Page 166 and 167:
T02-051 CYTOKININ RESPONSE GENES OF
Page 168 and 169:
T02-055 Vascular bundle differentia
Page 170 and 171:
T02-059 ROT3 and ROT3 homolog, whic
Page 172 and 173:
T02-063 The cell-autonomous ANGUSTI
Page 174 and 175:
T02-067 TYPE-B RESPONSE REGULATORS
Page 176 and 177:
T02-071 Diverse activities of Mei2-
Page 178 and 179:
T02-075 Large-scale analysis of nuc
Page 180 and 181:
T02-079 Biological function studies
Page 182 and 183:
T02-083 Isolation and characterizat
Page 184 and 185:
T02-087 Regulation of LATERAL SUPPR
Page 186 and 187:
T02-091 Isolation of two novel puta
Page 188 and 189:
T02-095 PLETHORA1 and PLETHORA2 are
Page 190 and 191:
T02-099 Regulatory Mechanisms in Sh
Page 192 and 193:
T02-103 A mutational analysis of th
Page 194 and 195:
T02-107 Characterization of cell ty
Page 196 and 197:
T02-111 The cyclophilin AtCyp95 reg
Page 198 and 199:
T02-115 Genetic Analysis of Vascula
Page 200 and 201:
T02-119 AtRaptor and meristem activ
Page 202 and 203:
T02 Development 2 (Shoot, Root) 15
Page 205 and 206:
T03-001 Mitochondrial Biogenesis in
Page 207 and 208:
T03-005 The N-end rule pathway for
Page 209 and 210:
T03-009 Cellulose biosynthesis and
Page 211 and 212:
T03-013 Has the Arabidopsis NAC dom
Page 213 and 214:
T03-017 PAS1 immunophilin targets a
Page 215 and 216:
T03-021 Localization of an ascorbat
Page 217 and 218:
T03-025 Genetic dissection of mucil
Page 219 and 220:
T03-029 Comprehensive oligo-microar
Page 221 and 222:
T03-033 The Arabidopsis co-chaperon
Page 223 and 224:
T03-037 The chloroplast SRP-pathway
Page 225 and 226:
T03-041 Stability of Microtubules C
Page 227 and 228:
T03-045 Identification and Characte
Page 229 and 230:
T03-049 Isolation and characterizat
Page 231 and 232:
T03-053 Global transcription analys
Page 233 and 234:
T03-057 A Proteomic Analysis of Lea
Page 235 and 236:
T03-061 Isolation of mutants affect
Page 237 and 238:
T03-065 Function and differentiatio
Page 239 and 240:
T03-069 Shaping plant cells using a
Page 241 and 242:
T03-073 Mitosis-specific accumulati
Page 243 and 244:
T03-077 A journey through the plant
Page 245 and 246:
T03-081 Regulated degradation of AU
Page 247:
T03-085 Towards analysis of the Ara
Page 251 and 252:
T04-001 Towards Understanding Chang
Page 253 and 254:
T04-005 The Basic Helix-Loop-Helix
Page 255 and 256:
T04-009 Transcriptional Regulation
Page 257 and 258:
T04-013 Plant Modulates Its Genome
Page 259 and 260:
T04-017 The Arabidopsis AtMYB60 tra
Page 261 and 262:
T04-021 Identification of a new ABA
Page 263 and 264:
T04-025 DegP1 Protease in Arabidops
Page 265 and 266:
T04-029 Functional characterization
Page 267 and 268:
T04-033 The location of QTL for nut
Page 269 and 270:
T04-037 Characterization of environ
Page 271 and 272:
T04-041 Expression pattern and phys
Page 273 and 274:
T04-045 Locating Sodium Chloride As
Page 275 and 276:
T04-049 The tup5 mutant shows blue
Page 277 and 278:
T04-053 Transcriptional regulation
Page 279 and 280:
T04-057 The SPA1 family: WD-repeat
Page 281 and 282:
T04-061 LOW-LIGHT- AND ETHYLENE-IND
Page 283 and 284:
T04-065 "Genetical genomics" of pet
Page 285 and 286:
T04-069 Comparative micro-array ana
Page 287 and 288:
T04-073 CHARACTERIZATION OF COL3, A
Page 289 and 290:
T04-077 P-regulated transcription f
Page 291 and 292:
T04-081 AN ARABIDOPSIS THALIANA T-D
Page 293 and 294:
T04-085 Functional Genomics of Absc
Page 295 and 296:
T04-089 Molecular genetic character
Page 297 and 298:
T04-093 The model system Arabidopsi
Page 299 and 300:
T04-097 Using Arabidopsis thaliana
Page 301 and 302:
T04-101 Characterization of QTL und
Page 303 and 304:
T04-105 Crosstalk and differential
Page 305 and 306:
T04-109 SRR1, a gene involved in ph
Page 307:
Page 311 and 312:
T05-001 Immunolocalization of a Fus
Page 313 and 314:
T05-005 Genomewide transcriptional
Page 315 and 316:
T05-009 Is Annexin 1 involved in ce
Page 317 and 318:
T05-013 Virulent bacterial pathogen
Page 319 and 320:
T05-017 Regulation of Cell Death in
Page 321 and 322:
T05-021 Mutations in Arabidopsis RI
Page 323 and 324:
T05-025 Reactive Oxygen species (RO
Page 325 and 326:
T05-029 An Arabidopsis Mlo knock-ou
Page 327 and 328:
T05-033 RepA protein from geminivir
Page 329 and 330:
T05-037 Aquaporin genes regulated b
Page 331 and 332:
T05-041 Systematic analysis of cyto
Page 333 and 334:
T05-045 Investigating the basis for
Page 335 and 336:
T05-049 FERMENTING OVER A COMPLEX M
Page 337 and 338:
T05-053 Genetic dissection of non-h
Page 339 and 340:
T05-057 ARF-GTPases in plant pathog
Page 341 and 342:
T05-061 Elongation factor Tu ¯ a n
Page 343 and 344:
T05-065 Physiological plasticity of
Page 345 and 346:
T05-069 Cell-specific Gene Activati
Page 347 and 348:
T05-073 The PEN1 syntaxin defines a
Page 349 and 350:
T05-077 RPM1-interacting protein RI
Page 351 and 352:
T05-081 The BIK1 gene of Arabidopsi
Page 353 and 354:
T05-085 Prediction of multiple Arab
Page 355:
T05-89 Compositional changes in the
Page 359 and 360:
T06-001 Transposon Activation in Ar
Page 361 and 362:
T06-005 Quantitative trait locus an
Page 363 and 364:
T06-009 Natural Variation of Flower
Page 365 and 366:
T06-013 Trichome evolution in tetra
Page 367 and 368:
T06-017 Investigation of the molecu
Page 369 and 370:
T06-021 Gene Subfunctionalization a
Page 371 and 372:
T06-025 A floral homeotic polymorph
Page 373 and 374:
T06-029 Adaptive trait genes in Ara
Page 375:
T06-033 Heterosis and transcriptome
Page 379 and 380:
T07-001 The At4g12720 gene encoding
Page 381 and 382:
T07-005 Roles of BOR1 homologs in B
Page 383 and 384:
T07-009 Arabidopsis thaliana P450 t
Page 385 and 386:
T07-013 Expression profiling and fu
Page 387 and 388:
T07-017 A biotechnological approach
Page 389 and 390:
T07-021 Equilibrative nucleoside tr
Page 391 and 392:
T07-025 gamma-aminobutyric acid (GA
Page 393 and 394:
T07-029 Genetically encoded sensors
Page 395 and 396:
T07-033 The role of the oxPPP durin
Page 397 and 398:
T07-037 a mutation in the sucrose t
Page 399 and 400:
T07-041 A Systems Approach to Nitro
Page 401 and 402:
T07-045 Overexpression of a specifi
Page 403 and 404:
T07-049 Expression profile and func
Page 405 and 406:
T07-053 Soluble Cytosolic Heterogly
Page 407 and 408:
T07-057 A FUNCTIONAL GENOMICS APPRO
Page 409 and 410:
T07-061 Structure-Function Relation
Page 411 and 412:
T07-065 Loss of the hydroxypyruvate
Page 413 and 414:
T07-069 Structure-Based Design of 4
Page 415 and 416:
T07-073 Role of chloroplast lipids
Page 417 and 418:
T07-077 Obtusifoliol 14alpha-demeth
Page 419 and 420:
T07-081 Identification and function
Page 421 and 422:
T07-85 The IPMS/MAM gene family of
Page 423 and 424:
T07-089 Accelerated senescence and
Page 425 and 426:
T07-093 Regulation of the Anthocyan
Page 427:
T07-097 Ionomics: Gene Discovery in
Page 431 and 432:
T08-001 Involvement of DIR1, a puta
Page 433 and 434:
T08-005 Expression profiling of mem
Page 435 and 436:
T08-009 C8 GIPK, a GAI-interacting
Page 437 and 438:
T08-013 Phosphate signaling in Arab
Page 439 and 440:
T08-017 Role Of Protein Phosphoryla
Page 441:
T09 Genetic Mechanisms (Transcripti
Page 444 and 445:
T09-003 Nuclear transcriptional con
Page 446 and 447:
T09-007 Two BRCA2-like genes are ne
Page 448 and 449:
T09-011 TT2, TT8, and TTG1 synergis
Page 450 and 451:
T09-015 Expression and Functional C
Page 452 and 453:
T09-019 SCL14 ACTIVATES ACTIVATION
Page 454 and 455:
T09-023 Role of E2F transcription f
Page 456 and 457:
T09-027 Histone methylation and het
Page 458 and 459:
T09-031 Alternating partnerships of
Page 460 and 461:
T09-035 AtERF2 is a Positive Regula
Page 462 and 463:
T09-039 Plant specific GAGA-binding
Page 464 and 465:
T09-043 Signal pathway of the endop
Page 466 and 467:
T09-047 Expression of nuclear genes
Page 468 and 469:
T09-051 The INCURVATA2 gene is invo
Page 470 and 471:
T09-055 Histone H1 is required for
Page 472 and 473:
T09-059 Inheritance of methylation
Page 475:
T10 Novel Tools, Techniques and Res
Page 478 and 479:
T10-003 Quantitative Immunodetectio
Page 480 and 481:
T10-007 A Comparison of Global gene
Page 482 and 483:
T10-011 Plant resources database at
Page 484 and 485:
T10-015 A method to isolate chlorop
Page 486 and 487:
T10-019 Novel Gene Discovery in Ara
Page 488 and 489:
T10-023 Real-Time RT-PCR profiling
Page 490 and 491:
T10-027 Proteome analyses of differ
Page 492 and 493:
T10-031 A novel approach to dissect
Page 494 and 495:
T10-035 Integrative metabolic netwo
Page 496 and 497:
what´s that????? T10-039 The Genom
Page 498 and 499:
T10-043 Toward the high throughput
Page 500 and 501: T10-047 Insertional mutagenesis by
Page 502 and 503: T10-051 Development of a novel repo
Page 504 and 505: T10-055 GENOME-WIDE DISCOVERY OF TR
Page 507 and 508: T11-001 Formation of flower primord
Page 509 and 510: T11-005 AthaMap, an online resource
Page 511 and 512: T11-009 Non-Random Distribution of
Page 513 and 514: T11-013 DegP/HtrA proteases in plan
Page 515 and 516: T11-017 GABI-Primary Database: A Co
Page 517 and 518: T11-021 ARABI-COIL - an Arabidopsis
Page 519 and 520: T11-025 The Botany Affymetrix Datab
Page 521: T11-029 From Genes to Morphogenesis
Page 525 and 526: T12-001 Arabidopsis cannot survive
Page 527 and 528: T12-005 Development of three differ
Page 529 and 530: T12-009 Cold-induced pollen sterili
Page 531 and 532: T12-013 Two Zn-responsive metalloth
Page 533 and 534: T12-017 Cytokinin signaling in seco
Page 535 and 536: T12-021 Population biology of the o
Page 537 and 538: T12-025 Dissecting symbiotic nitrog
Page 539: T13 Others
Page 542 and 543: T13-003 SH2 proteins in plants : Th
Page 544 and 545: T13-007 Characterization of the Cul
Page 546 and 547: T13-011 Cell wall polysaccharide an
Page 548 and 549: T13-015 Dynamics of protein complex
Page 552 and 553: A Aalen, Reidunn B. . . . . . . . .
Page 554 and 555: Block, Maryse A.. . . . . . . . . .
Page 556 and 557: Creelman, Bob . . . . . . . . . . .
Page 558 and 559: Finzi, Laura. . . . . . . . . . . .
Page 560 and 561: Hannah, Matthew A. . . . . . . . .
Page 562 and 563: Jackson, Angela . . . . . . . . . .
Page 564 and 565: Kroymann, Juergen. . . . . . . . .
Page 566 and 567: Mathur, Jaideep . . . . . . . . . .
Page 568 and 569: Nilsson, Lena . . . . . . . . . . .
Page 570 and 571: Rauh, Brad . . . . . . . . . . . .
Page 572 and 573: Schönrock, Nicole . . . . . . . .
Page 574 and 575: Takeda, Seiji . . . . . . . . . . .
Page 576 and 577: Weber, A. . . . . . . . . . . . . .
Page 579 and 580: Participants Mail Index
Page 581 and 582: C Cabral, Adriana .................
Page 583 and 584: Gremski, Kristina .................
Page 585 and 586: Lee, Hyun-Kyung ...................
Page 587 and 588: Ponce, María Ros .................
Page 589 and 590: Thelen, Jay J. ....................
show all

15th International Conference on Arabidopsis Research - TAIR

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?