!autogenerated-by:     DAG-Edit version 1.419 rev 3
!saved-by:             katica
!date:                 Fri Jul 08 19:44:07 PDT 2005
!version: $Revision: 1.8 $
!type: % is_a is a
!type: < part_of Part of
$plant ontology ; PO:0000001
 %plant growth and development stage ; PO:0000205
  %obsolete ; PO:0007532
   %A1 root initials formation stage ; PO:0007535
   %A2 root initials differentiation stage ; PO:0007512
    %A2.1 root intials differntiation of primary roots ; PO:0007503
    %A2.2 root initials differentiation of lateral roots ; PO:0007528
    %A2.3 founder cell derivatives of lateral root ; PO:0007530
    %A2.4 root initials differentiation of crown roots ; PO:0007534
   %B1 primary root meristem formation ; PO:0007524
   %B2 lateral root meristem formation ; PO:0007539
   %B3 crown root meristem formation ; PO:0007514
   %C3.1 metaxylem differentiation of root. ; PO:0007521 ; synonym:metaxylem differentiation of crown root ; synonym:metaxylem differentiation of lateral root ; synonym:metaxylem differentiation of primary root
   %C3.2 maturation of phloem elements in root. ; PO:0007537 ; synonym:maturation phloem elements of crown root. ; synonym:maturation phloem elements of lateral root. ; synonym:maturation phloem elements of primary root.
   %C3.3 maturation of protoxylem elements in root. ; PO:0007533 ; synonym:maturation of protoxylem elements in crown root ; synonym:maturation of protoxylem elements in lateral root ; synonym:maturation of protoxylem elements in primary root
   %calyx absolute size ; PO:0020002
    %sepals 100\% of final size ; PO:0006310
    %sepals 50\% of final size ; PO:0006309
   %calyx relationship ; PO:0020003
   %E emerged root elongation ; PO:0007529 ; synonym:emerged crown root elongation ; synonym:emerged lateral root elongation ; synonym:emrged primary root elongation
   %establishment of initial cells ; PO:0007523
   %F1 root hair initiation ; PO:0007531
   %F2 root hair elongation ; PO:0007526
   %formation of starchy endosperm ; PO:0000098
   %meristem eloboration ; PO:0000000
    %elongation zone formation ; PO:0000028
    %meristamtic zone formation ; PO:0000027
    %specialization zone formation ; PO:0000030
   %root primordium visible ; PO:0007536
  %plant part developmental stages ; PO:0000022
   %flower development stages ; PO:0006315 ; synonym:flower development TAIR\:0000004 
    %1 floral meristem visible ; PO:0006301 ; synonym:stage 1 flower TAIR\:0000375
    %2 floral meristem notched ; PO:0006302 ; synonym:stage 2 flower TAIR\:0000376
    %3 floral organ development stages ; PO:0006300
     %3 calyx developmental stages ; PO:0006303
      %3.1 sepal primordum visible ; PO:0006307 ; synonym:stage 3 flower TAIR\:0000377
      %3.2 sepal differentiation and expansion stage ; PO:0000044 ; POC:fz
       %sepals enclosing floral bud ; PO:0000380 ; synonym:Arabidopsis stage 6 TAIR\:0000380
       %sepals enclosing meristem ; PO:0000378 ; synonym:Arabidopsis stage 4
      %3.3 fully expanded sepal ; PO:0000045 ; POC:fz
     %4 corolla developmental stages ; PO:0006304
      %4.1 petal primordum visible ; PO:0006308 ; synonym:stage 5 flower TAIR\:0000379
      %4.2 petal differentiation and expansion stage ; PO:0006311 ; POC:fz ; synonym:stage 10 flower TAIR\:0000384 ; synonym:stage 12 flower TAIR\:0000386 ; synonym:stage 9 flower TAIR\:0000383
      %4.3 fully expanded petal ; PO:0006312 ; POC:fz
     %5 lemma developmental stages ; PO:0000047 ; POC:fz
      %5.1 lemma primordia visible ; PO:0000055 ; POC:fz
      %5.2 lemma differentiation and expansion stage ; PO:0000056 ; POC:fz
      %5.3 fully expanded lemma ; PO:0000057 ; POC:fz
     %6 palea developmental stages ; PO:0000048 ; POC:fz
      %6.1 palea primordia visible ; PO:0000058 ; POC:fz
      %6.2 palea differentiation and expansion stage ; PO:0000070 ; POC:fz
      %6.3 fully expanded palea ; PO:0000071 ; POC:fz
     %7 lodicule developmental stages. ; PO:0000049 ; POC:fz
      %7.1 lodicule primordia visible ; PO:0000072 ; POC:fz
      %7.2 lodicule differentiation and expansion stage ; PO:0000077 ; POC:fz
      %7.3 fully expanded lodicule ; PO:0000079 ; POC:fz
     %8 androecium developmental stages ; PO:0006305
      %8.1 stamen primordum visible ; PO:0006313 ; synonym:stage 7 flower TAIR\:0000381
      %8.2 anther developmental stages ; PO:0000004 ; POC:fz
       %A archesporial cells visible ; PO:0000005
       %B formation of primary parietal and sporogenous cells ; PO:0000018
       %C four anther lobes formed ; PO:0000025
       %D locules established ; PO:0000026 ; synonym:stage 8 flower TAIR\:0000382
       %E tapetum degeneration initiated ; PO:0000032
       %F bilocular anther stage ; PO:0000034
       %G anther dehiscence ; PO:0000035
       %H anther senescence ; PO:0000036
      %8.3 pollen developmental stages ; PO:0000007 ; POC:fz ; synonym:pollen development TAIR\:0000055
       %A microsporogenous mass stage ; PO:0000011 ; synonym:pollen stage 1 TAIR\:0000056
       %B enlarged microsporocyte stage ; PO:0000006 ; synonym:pollen stage 2 TAIR\:0000057
       %C callose wall formation in pollen mother cells ; PO:0000008 ; synonym:pollen mother cell stage ; synonym:pollen stage 3 TAIR\:0000058
       %D pollen mother cell meiosis stage ; PO:0000009 ; synonym:pollen stage 4 TAIR\:0000059
       %E tetrad stage ; PO:0000029
       %F microspore release stage ; PO:0000010 ; synonym:pollen stage 5 TAIR\:0000060
       %G early unicellular microspore stage ; PO:0000012 ; synonym:pollen stage 6 TAIR\:0000061
       %H late unicellular microspore stage ; PO:0000013 ; synonym:pollen stage 7 TAIR\:0000062
       %I first mitotic division stage ; PO:0000014 ; synonym:pollen stage 8 TAIR\:0000063
       %J bicellular pollen stage ; PO:0000059
       %K second mitotic division stage ; PO:0000015 ; synonym:pollen stage 9 TAIR\:0000064
       %L mature pollen stage ; PO:0000016 ; synonym:pollen stage 10 TAIR\:0000065
       %M germinated pollen stage ; PO:0000017 ; synonym:germinated pollen grain TAIR\:0000085
        %N second mitotic division stage in germinating pollen ; PO:0000074
     %9 gynoecium developmental stages ; PO:0006306
      %9.1 carpel primordium visible ; PO:0006318
      %9.2 ovule developmental stages ; PO:0006319
       %ovule primordium visible ; PO:0006320 ; synonym:ovule stage 1-I TAIR\:0000006
        %integument initiation stage ; PO:0006322 ; synonym:ovule stage 2-II TAIR\:0000009 ; synonym:ovule stage 2-III TAIR\:0000010
        %megagametophyte developmental stages ; PO:0006321
         %A megaspore mother cell enlarges ; PO:0006323 ; synonym:ovule stage 2-I TAIR\:0000008
         %B meiosis of MMC ; PO:0006324 ; synonym:ovule stage 2-IV TAIR\:0000011
         %C tetrad of megaspores ; PO:0006325 ; synonym:ovule stage 2-V TAIR\:0000012
         %D megaspore degeneration ; PO:0006326 ; synonym:ovule stage 3-I TAIR\:0000013
         %E two nucleate megagametophyte ; PO:0006327 ; synonym:ovule stage 3-II TAIR\:0000014
         %F four nucleate megagametophyte ; PO:0006328 ; synonym:ovule stage 3-IV TAIR\:0000016
         %G eight nucleate megagametophyte ; PO:0006329 ; synonym:ovule stage 3-V TAIR\:0000017
    %4 anthesis ; PO:0006316 ; synonym:stage 13 flower TAIR\:0000388
    %5 post anthesis ; PO:0006317 ; synonym:stage 16 flower TAIR\:0000391
   %fruit development stages ; PO:0000002 ; POC:curators ; synonym:stage 17 flower TAIR\:0000392 ; synonym:stage 18 flower TAIR\:0000422
   %inflorescence development stages ; PO:0000083 ; POC:curators
    %inflorescence initiation stage ; PO:0020004 ; POC:fz
   %leaf developmental stages ; PO:0000050 ; synonym:leaf development TAIR\:0000050
    %L1 leaf initiation ; PO:0000051, PO:0000003 ; synonym:leaf initiation TAIR\:0000051
     %P0 formation of the leaf founder cells ; PO:0000003 ; synonym:P0 stage
    %L2 leaf expansion ; PO:0000052 ; synonym:leaf expansion stage TAIR\:0000052
     %P1 formation of leaf primordium ; PO:0000019 ; synonym:P1 stage
     %P2 hood-shaped primordium ; PO:0000020 ; synonym:P2 stage
     %P3 formation of ligule primordium ; PO:0000021 ; synonym:P3 stage
     %P4 rapid elongation of leaf blade ; PO:0000023 ; synonym:P4 stage
     %P5 rapid elongation of leaf sheath ; PO:0000024 ; synonym:P5 stage
    %L3 leaf fully expanded ; PO:0000053 ; synonym:P6 mature leaf stage ; synonym:fully expanded leaf stage TAIR\:0000053
    %L4 leaf senescence ; PO:0000054 ; synonym:leaf senescence stage TAIR\:0000054
   %root development stages ; PO:0007520
    %A root primordium formation ; PO:0007505
     %A1 primary root primordium formation ; PO:0007506
     %A2 lateral root primordium formation ; PO:0007511
     %A3 crown root primordium formation ; PO:0007504
    %B root meristem formation ; PO:0007527
    %C establishment of tissue systems ; PO:0007525 ; synonym:Benfey's stage 1 of root development ; synonym:Cell differentiation stage of root development ; synonym:establishment of fundamental organization in adventitious root ; synonym:establishment of fundamental organization in primary root. ; synonym:establishment of fundamental organization lateral root.
     %C1 root epidermal differentiation ; PO:0007516 ; synonym:Epidermal differentiation of lateral root. ; synonym:Epidermal differentiation of primary root ; synonym:Epidermial differentiation of crown root.
     %C2 root cortex differentiation ; PO:0007513 ; synonym:Cortex differentiation of crown root. ; synonym:Cortex differentiation of lateral root ; synonym:Cortex differentiation of primary root.
     %C3 root vascular cylinder differentiation ; PO:0007509
     %C4 root cap formation ; PO:0007501 ; synonym:Root cap formation in crown root. ; synonym:Root cap formation in lateral root. ; synonym:Root cap formation in primary root.
    %D root elongation ; PO:0000031 ; synonym:Benfey's stage 2 of root development
     %root emergence ; PO:0007510
      %crown root emergence ; PO:0007518
      %lateral root emergence ; PO:0007517
      %radicle emergence ; PO:0007507
    %E root hair formation ; PO:0007519 ; synonym:Benfey's stage 3 of root development
   %seed development stages ; PO:0000170 ; synonym:seed development TAIR\:0000170
    %dry seed ; PO:0000040 ; synonym:dry seed TAIR\:0000213
    %embryo developmental stages ; PO:0006331 ; synonym:embryonic TAIR\:0000374 
     %A zygote ; PO:0000097 ; synonym: zygote TAIR\:0000097 ; synonym:one cell stage
     %B proembryo stage ; PO:0000180 ; synonym:eight-celled stage TAIR\:0000180 ; synonym:two-celled stage TAIR\:0000177
     %C globular stage ; PO:0000185 ; synonym:dermatogen stage TAIR\:0000369 ; synonym:globular stage TAIR\:0000028 ; synonym:late globular stage TAIR\:0000185 ; synonym:mid-globular stage TAIR\:0000184
     %coleoptilar stage ; PO:0000094 ; synonym:SAM and radicle formation stage
     %D heart-shape stage ; PO:0000043 ; synonym:heart stage TAIR\:0000186
     %E torpedo stage ; PO:0000076 ; synonym:torpedo stage TAIR\:0000187
     %embryo maturation stage ; PO:0000081 ; synonym:mature TAIR\:0000368
     %F cotyledonary stage ; PO:0000078 ; synonym:curled cotyledon stage TAIR\:0000320
     %transition stage ; PO:0000177 ; synonym:triangle stage TAIR\:0000029
     %true leaf formation ; PO:0000095
    %endosperm developmental stages ; PO:0006333
     %A primary endosperm cell stage ; PO:0000096
     %B chalazal and micropylar domain establishment ; PO:0000041
     %C functional specialization of the endosperm ; PO:0000042
      %formation of aleurone and starchy layers ; PO:0000099
    %seed maturation stage ; PO:0006332 ; synonym:seed maturation TAIR\:0000173