version: $Revision: 1.1 $ date: Tue Nov 09 18:39:15 PST 2004 saved-by: Katica Ilic autogenerated-by: DAG-Edit version 1.418 2005-08-19T14:14:00 gwg arabidopsis_development.ontology stage at which the first 3 rosette leaves have reached > 1 mm in length. PMID:11449047 principal growth stage 1.03 3 rosette leaf globular stage A collective term referring to the stages of embryo development spanning the early globular stage when the protoderm is formed to the late globular stage (before the initial divisions of the cotyledon primordia ISBN:0387940898 late globular stage At this stage the protoderm, procambium, hyposeal cell are present and the endosperm begins to cellularize. ISBN:03870940898 64-cell embryo ovule stage 3-VI TAIR:publication 11808 central cell nuclei fuse, antipodal cells degenerate, additional cell layer forms in inner integument Stage of leaf development which begins when the leaf primordiumis visible on the shoot apex and continues throughout the time that it increases in size by cell division and/or cell expansion. TAIR:tb leaf expansion stage stage at which the first 4 rosette leaves have reached > 1mm in length. 4 rosette leaf principal growth stage 1.04 Stage at which the embryo has ceased to divide. mature Stage of floral development that begins when the ling stamen primordia are stalked at the base. stage 7 flower In annual plants the stages that commence when the plant is capable of sexual reproduction (e.g. flowering) and continues until sexual reproduction ceases. TAIR:lr adult reproductive Stage of floral development that begins when the petals and sepals begin to wither. stage 16 flower 9 rosette leaf stage at which the first 9 leaves have reached > 1 mm length. principal growth stage 1.09 ovule primordium elongate ovule stage 1-II Stage of floral development when long anthers extend above the stigma. zero hours HAF Zero hours after flowering stage 14 flower stage 4 flower Stage of floral development that begins when the developing sepals overlie the floral meristem. URL:http //www.bbg.org/gar2/topics/botany/parts_grouping.html A young plant that is partly dependent on substances of the maternal plant stored in the seed (especially the first leaves, called cotyledons). The plant always has embryological structures, including cotyledons, a primary root (the embryological root), and a primary shoot (the embryological stem) seedling stage at which the first 5 leaves have reached > 1 mm length. principal growth stage 1.05 5 rosette leaf ovule stage 2-III outer integument initiates, chalazal nucellus divides TAIR:ki Stage during which the seed has attained less than 20% of water content, entering into metabolically inactive or, quiescent state. dry seed germinated pollen grain The final stage in the life cycle of the male gametophyte. Upon rehydration, mature pollen grain forms tubular outgrowth, pollen tube, which carries male gametes. TAIR:KI 16-cell embryo mid-globular stage Stage at which the embryo under goes mitotic divisions to produce a 32 then 64- celled embryo. eight nucleate megagametophyte ovule stage 3-V seed maturation Stage during which the seed storage products (storage proteins and lipids) are being accumulated, mainly in the cotyledons (which are already bended toward the chalazal end of the embryo sac). As a result, the body of the embryo increases in size while most of the endosperm is already depleted. Seed coat gradually changes from green to yellowish and finally to dark brown color. 2 rosette leaf principal growth stage 1.02 stage at which the first two rosette leaves have reached > 1 mm in length. leaf initiation stage Stage of leaf development that begins when cells are set aside in the meristem to form the leaf primordium and ends right before the leaf primordium is visible on the shoot apex. Cells in the primordium are not yet differentiated. Stage of floral development that begins when the sepals enclose the floral bud. stage 6 flower The stage at which the embryo has undergone three mitotic divisions and contains sixteen cells. The outer protodermal cells will give rise to the epidermis through a series of anticlinal divisions. Development of the suspensor is complete at this stage. ISBN:0387094898 sixteen cell stage early globular stage dermatogen stage Stage of floral development that begins when the stigma extends above the long anthers. stage 15 flower ovule stage 2-I megaspore mother cell enlarges ISBN:038790898 Stage of floral development that begins when the petal and stamen primordia arise. stage 5 flower 8 rosette leaf stage at which the first 8 leaves have reached > 1 mm length. principal growth stage 1.08 pollen maturation pollen stage 10 PMID:12354970 Stage of microsporogenesis during which the pollen grains mature and dessicate. The tapetal layer disappears just prior to dehiscence of the anther. stage of flower development that begins when the floral bud opens and the petals are visible to the naked eye. stage 13 flower anthesis microspore tetrad stage pollen stage 4 Stage of microsporogenesis where pollen mother cells undergo meiosis to form isobilateral and tetrahedral tetrads of microspores that are enclosed by the callose wall. principal growth stage 9.70 senescence complete principal growth stage 1.06 stage at which the first 6 leaves have reached > 1 mm in length. 6 rosette leaf senescence principal growth stage 9 plant growth stages four-nucleate megagametophyte , inner integument surrounds nucellus, endothelium differentiates ovule stage 3-IV torpedo stage inner integument initiates ovule stage 2-II leaf senescence stage the final stage of leaf development where the leaf ceases metabolic activity and senesces Stage of microsporogenesis during which the second mitotic division of the microsporocyte occurs. Storage bodies become visible in the microspores. pollen stage 9 second microsporocyte mitotic division stage principal growth stage 0 germination principal growth stage 1.11 stage at which the first 11 leaves have reached > 1 mm length. 11 rosette leaf rosette growth principal growth stage 3 Arabidopsis growth Stages of growth and development of Arabidopsis 16 rosette leaf A transient stage between the late globular and heart stage when the first cell divisions of the cotyledon primordia begin and cell elongation starts in the procambium. triangle stage body part developmental stages stages of development of a part or parts of a plant defined by characteristic morphological, structural, histological or other visible features. Embryonic stage at which the cotyledon primordia have enlarged enough to form two mounds on either side of the apical meristem. heart stage Arabidopsis ontology megagametophyte develops large central vacuole, micropylar end of ovule at 90 degree angle from funiculus ovule stage 3-III curled cotyledon stage The stage at which the cotyledons curve down towards the suspensor. At this time protein deposition in the cotyledons begins. Stage of leaf development stage where the leaf is fully expanded, no longer increases in size by cell division and/or cell expansion and is metabolically active. fully expanded leaf stage Stage of microsporogenesis during which the resorption of the prominent vacuole occurs followed by the first mitotic division of th microspores occurs, first microsporocyte mitotic division stage pollen stage 8 stage 12 flower stage of flower development that begins when the petal height is level with the long stamens. post-germination principal growth stage 1.10 stage at which the first 10 leaves have reached > 1mm length. 10 rosette leaf Stage of floral development that begins when all of the floral organs have abscised and only the green silique remains. stage 17 flower stage 1 flower stage of flower development marked by the emergence of the floral meristem on the flank of the inflorescence meristem. radicle emergence principal growth stage 0.7 stage 18 flower Stage of floral development that begins when the silique color changes from green to yellow. stage of flower development that begins when the stigmatic papillae appear. stage 11 flower pollen stage 7 Stage of microsporogenesis where a large vacuole is formed in each microspore causing a rapid increase in size and a displacement of the nucleus to one side. vacuolate microspore stage non-functional megaspores degenerate, outer integument envelops the nucellus and inner integument, funiculus and nucellus begin to curve ovule stage 3-I pollen stage 1 microsporogeneous mass stage Stage of microgametogenesis where the archesporial cells divide to give rise to primary parietal and sporogenous cells. 13 rosette leaf principal growth stage 1.13 stage at which the first 13 leaves have reached > 1mm length. principal growth stage 3.20 early rosette growth imbibition principal growth stage 0.10 octant stage embryo An embryo comprised of eight cell. The mitotic divisions leading to this stage do not cause a significant increase in size. eight-celled stage two-celled stage The embryo after the first mitotic division that produces a smaller apical cell and larger basal cell. The basal cell gives rise to the radicle and the suspensor. The apical cell gives rise all of the embryo except the root. stage 10 flower stage of flower development that begins when the petal height is level with the short stamens. first open flower principal growth stage 6.00 whole plant stage at which the first flower has reached stage 13 (fully open, pollen dehiscence). microsporogenesis The stages of pollen development in Arabidopsis. pollen development principal growth stage 8 silique ripening pollen stage 6 Stage of microsporogenesis where the microspores round up and small vaualoles appear in their cytoplasm. The cell walls also thicken because of the formation of the exine. early-vacuolate microspore stage principal growth stage 1.12 12 rosette stage stage at which the first 12 leaves have reached > 1mm length. flower development stages of flower development in Arabidopsis ovule stage 3-II two nucleate megagametophyte stage, outer integument surrounds nucellus, micropylar end points > 90 degrees away from funiculus, differential growth of integuments inflorescence emergence early reproductive stages of development that occur after fertilization and before germination. embryonic principal growth stage 3.50 mid rosette growth 7 rosette leaf principal growth stage 1.07 stage at which the first 7 leaves have reached > 1 mm length. seed development The stages of seed development, from fertilization to the dry or quiescent state. late rosette growth principal growth stage 3.70 stage 3 flower Stage of floral development that begins when the sepal primordia arise. ISBN:038794898 Stage of floral development that begins when the petal primordia are stalked at the base. stage 9 flower megaspore meiosis occurs ovule stage 2-IV Whole plant developmental stage at which the first flower buds become visible to the naked eye visible flower buds principal growth stage 5.10 Stage of microsporogenesis where the pollen mother cells become separated from each other and from tapetum by a callose wall. pollen mother cell stage pollen stage 3 ovule development stages of ovule and megagametophyte development PMID:9118807 microspore release stage Stage of microsporogenesis just after pollen mother cell meiosis during which the callose wall between the tetrads breaks down and the microspores are released and lie freely in the pollen sac. pollen stage 5 leaf development stages of leaf development in Arabidopsis stage at which leaf growth has ceased and the rosette no longer increases in size. principal growth stage 3.90 complete rosette principal growth stage 1.0 cotyledons fully open principal growth stages 6.1-6.3 mid reproductive middle stages of reproductive phase one cell stage One cell stage that takes place following the fertilization, (i.e., fusion of sperm cell nucleus and egg cell resulting in a diploid cell) and before the first mitotic cell division. It marks the beginning of sporophytic generation in the life cycle of the Angiosperms. zygote hypocotyl and cotyledon emergence principal growth stage 0.7 post-reproductive Early stage of seed development (commencing with the formation of diploid zygote) during which embryonic organ system is established, i.e., embryo axis and cotyledons. This stage terminates with apical-basal elongation of the embryo resulting in green linear embryo with flattened cotyledons. The seed coat is light green at this stage. early seed development Stage of floral development that begins when the floral meristem becomes demarcated from the inflorescence meristem by a slight indentation. stage 2 flower stage 8 flower Stage of floral development that begins when the locules appear on the long stamens. microsporocyte stage pollen stage 2 Stage of microsporogenesis where the microsporocytes become conspicuous. ovule stage 2-V tetrad of megaspores formed, integuments elongate towards apex of the nucellus vegetative stages of development that occur from seed germination up to flowering juvenile ovule stage 1-I ovule primordia arise stage at which the first 14 leaves have reached > 1mm length. 14 rosette leaf principal growth stage 1.14 principal growth stage 6.5-6.9 flowering complete late reproductive reproductive stages that occur after the midpoint and before senescence or the end of reproductive growth. is a Part of develops from