cell type node definitions (fwd)
Katica Ilic
katica at acoma.Stanford.EDU
Fri Apr 2 19:29:56 EST 2004
On Fri, 2 Apr 2004, Sue Rhee wrote:
> On Thu, 1 Apr 2004, Katica Ilic wrote:
>
> >
> > Here is another topic for tomorrow, please see the thread bellow (since
> > Pankaj and I started this discussion earlier).
> >
> > The question is whether epidermal cell is a child of parenchyma cell
> > type, followed by a related one, whether chlorenchyma cell is a synonym
>
> No.
>
> > of photosynthetic cell (with guard cell as an example).
>
> No. I think chlorenchyma cell is a type of photosynthetic cell. Pavement
> and guard cells are other examples of types of photosynthetic cell.
>
> > Now that I've been thinking more on this topic, here is another
> > question: Is chlorenchyma cell really a cell type?
> Why not?
Chlorenchyma tissue is parenchyma tissue containing chloroplasts (green
parenchyma); chlorenchyma cell is esentially parenchyma cell with
chloroplasts. With availability of different types of synonyms, parenchyma
cell can be broader synonym of chlorenchyma cell. Just a thought, I
already have chlorenchyma cell in the cell type node, but I like the idea
taking advantage of diff types of synonyms too (otherwords, keeping it
simple wherever we can).
Katica
> > Katica
> > --------------------------------------------------------------------------
> > Katica Ilic katica at acoma.stanford.edu
> > The Arabidopsis Information Resource Tel: (650) 325-1521 ext. 253
> > Carnegie Institution of Washington FAX: (650) 325-6857
> > Department of Plant Biology URL: http://arabidopsis.org/
> > 260 Panama St.
> > Stanford, CA 94305
> > U.S.A.
> > --------------------------------------------------------------------------
> >
> > ---------- Forwarded message ----------
> > Date: Wed, 31 Mar 2004 22:27:28 -0500 (EST)
> > From: Pankaj Jaiswal <pj37 at cornell.edu>
> > To: Katica Ilic <katica at acoma.Stanford.EDU>
> > Subject: Re: cell type node definitions (fwd)
> >
> >
> > Katica Ilic said:
> > >
> > > Pankaj,
> > > Along the same line (looking at the cereal anatomy ontology), is epidermal
> > > cell really a child of of parenchyma cell (instance_of)?
> > >
> > Yes. That is what I got from several sources
> >
> > pankaj
> >
> >
> >
> >
> > > Katica
> > > ---------- Forwarded message ----------
> > > Date: Wed, 31 Mar 2004 11:24:04 -0800 (PST)
> > > From: Katica Ilic <katica at acoma.Stanford.EDU>
> > > To: Pankaj Jaiswal <pj37 at cornell.edu>
> > > Cc: Leszek at missouri.edu, fzqhd at studentmail.umsl.edu
> > > Subject: Re: cell type node definitions (fwd)
> > >
> > >
> > > Pankaj,
> > >
> > > About photosynthetic cell and chlorenchyma cell types, the first is a
> > > broader (but not exact) synonym of latter, as all the chlorenchyma cells
> > > are type of parenchyma cells (green parenchyma), while photosynthetic cell
> > > is any cell that contains chloroplasts (not just parenchyma type). For
> > > instance, guard cells have chloroplasts, therefore they can be considered
> > > photosynthetic cells, but they are definitely not chlorenchyma type of
> > > cells.
> > >
> > > For this reason I decide to keep them separately (for now, I didn't make
> > > them synonyms). Later, when we start using other types of synonyms, I can
> > > change this (another reson to switch to OBO format sooner than latter).
> > >
> > > Katica
> > >
> > > On Tue, 30 Mar 2004, Pankaj Jaiswal wrote:
> > >
> > >> Hi Katica,
> > >>
> > >> The first attempt is excellent. You may want to look at the gramene cell
> > >> type section for more cell types.
> > >>
> > >> Also you may like to categorize/classify them into major classes, rather
> > >> than just a simple list of all cell types. Means adding more Biology
> > >> orientations. I have some in Gramene !
> > >>
> > >> a quick comment
> > >>
> > >> isn't the photosynthetic cell a synonym of chlorenchymatous cell ?
> > >>
> > >>
> > >>
> > >> Katica Ilic wrote:
> > >>
> > >> > Hi Pankaj, Leszek and Felipe,
> > >> >
> > >> > Here are files fo my cell type node (once approved, it will get
> > >> imported
> > >> > to anatomy ontology with the po numbers asigned). Could you go through
> > >> and
> > >> > see if there is any term that need to be removed. There are some
> > >> > subcellular structures (like filiform aparatus), but I decide to keep
> > >> it
> > >> > for now. This is perhaps a question for Friday's conf call.
> > >> >
> > >> > Thanks,
> > >> >
> > >> > Katica
> > >> >
> > >> > P.S. Pankaj, I'll go through your nodes this morning.
> > >> > --------------------------------------------------------------------------
> > >> > Katica Ilic katica at acoma.stanford.edu
> > >> > The Arabidopsis Information Resource Tel: (650) 325-1521 ext. 253
> > >> > Carnegie Institution of Washington FAX: (650) 325-6857
> > >> > Department of Plant Biology URL: http://arabidopsis.org/
> > >> > 260 Panama St.
> > >> > Stanford, CA 94305
> > >> > U.S.A.
> > >> > --------------------------------------------------------------------------
> > >> >
> > >> > ---------- Forwarded message ----------
> > >> > Date: Tue, 23 Mar 2004 18:16:40 -0800 (PST)
> > >> > From: Katica Ilic <katica at acoma.Stanford.EDU>
> > >> > To: Peter Stevens <peter.stevens at mobot.org>
> > >> > Subject: cell type node definitions
> > >> >
> > >> > Hi Peter,
> > >> >
> > >> > I have finished the first draft of the cell type node. Attached is the
> > >> > definition file, with definitions taken mostly from K Esau.
> > >> > Would you have time to look at it and see if there is any definition
> > >> that you
> > >> > think need to be changed.
> > >> >
> > >> > IDs that have KI as a prefix are just temporary, they will all have PO
> > >> IDs
> > >> > once I import them into main the Plant anatomy.ontology.
> > >> >
> > >> > I will be adding few more terms, so any suggestions are appreciated.
> > >> > After I hear from you , I'll go ahead and imoprt this node into
> > >> anatomy.ontology,
> > >> > and add these terms to the other nodes, first to Pankaj's tissue node,
> > >> and eventually, when all other nodes
> > >> > are done, I would need to add these terms to the other nodes, wherever
> > >> needed.
> > >> >
> > >> > Thanks,
> > >> >
> > >> > Katica
> > >> > P.S. I am not sending you flat file of the cell_type node ontology,
> > >> since
> > >> > it's rather 'flat', not much hierarchy at the present time, as I still
> > >> > need to shufle some terms around.
> > >> >
> > >> >
> > >> >
> > >> > --------------------------------------------------------------------------
> > >> > Katica Ilic katica at acoma.stanford.edu
> > >> > The Arabidopsis Information Resource Tel: (650) 325-1521 ext. 253
> > >> > Carnegie Institution of Washington FAX: (650) 325-6857
> > >> > Department of Plant Biology URL: http://arabidopsis.org/
> > >> > 260 Panama St.
> > >> > Stanford, CA 94305
> > >> > U.S.A.
> > >> > --------------------------------------------------------------------------
> > >> >
> > >> >
> > >> >
> > >> > ------------------------------------------------------------------------
> > >> >
> > >> > !version: $Revision: 1.24 $
> > >> > !date: Tue Mar 23 17:53:40 PST 2004
> > >> > !saved-by: Katica Ilic
> > >> > !autogenerated-by: DAG-Edit version 1.410
> > >> > !
> > >> > !Gene Ontology definitions
> > >> > !
> > >> > term: antipodal cell
> > >> > goid: TAIR:0000192
> > >> > definition: cells located at the chalazal end of the mature embryo sac
> > >> in angiosperms
> > >> > definition_reference: ISBN:047125208
> > >> >
> > >> > term: apical cell
> > >> > goid: KI:0004000
> > >> > definition: The single cell that occupies the distal position in an
> > >> apical meristem of root or shoot and is usually interpreted as the
> > >> initial cell in the apical meristem.
> > >> > definition_reference: ISBN:0471245208
> > >> >
> > >> > term: atrichoblast
> > >> > goid: TAIR:0000263
> > >> > definition: A cell formed after asymmetric division of root epidermal
> > >> cell that does not give rise to a root hair
> > >> > definition_reference: ISBN:0387987819
> > >> >
> > >> > term: axial cell
> > >> > goid: TAIR:0000081
> > >> > definition: A secondary vascular cell derived from the fusiform
> > >> cambial initials and oriented with their longest diameter parallel
> > >> with the main axis of stem or root. These cells make up the axial
> > >> system, also known as vertical or longitudinal system.
> > >> > definition_reference: ISBN:0471245208
> > >> >
> > >> > term: bulliform cell
> > >> > goid: KI:0004001
> > >> > definition: An enlarged epidermal cell present, with other similar
> > >> cells, in longitudinal rows in leaves of grasses. Also called motor
> > >> cell because of its presumed participation in the mechanism of rolling
> > >> and unrolling of leaves.
> > >> > definition_reference: ISBN:0471245208
> > >> >
> > >> > term: cambial initial
> > >> > goid: TAIR:0000295
> > >> > definition: Cells so localized in the vascular cambium or phellogen
> > >> that their periclinal divisions can contribute cells either to the
> > >> outside or to the inside of the axis; in vascular cambium, classified
> > >> into fusiform initials (source of axial cells of xylem and phloem) and
> > >> ray initials (source of the ray cells).
> > >> > definition_reference: ISBN:0471245208
> > >> >
> > >> > term: central cell
> > >> > goid: TAIR:0000194
> > >> > definition: cell type containing the two polar nuclei which, after
> > >> double fertilization, will develop into the endosperm.
> > >> > definition_reference: TAIR:lr
> > >> >
> > >> > term: chlorenchyma cell
> > >> > goid: TAIR:0000076
> > >> > definition: Parenchyma cells containng chloroplasts; a component of
> > >> leaf mesophyll and other green parenchyma tissue.
> > >> > definition_reference: ISBN:0471245208
> > >> >
> > >> > term: collenchyma cell
> > >> > goid: TAIR:0000075
> > >> > definition: Elongated living cells with unevenly thickened
> > >> nonlignified primary walls.
> > >> > definition_reference: ISBN:0471245208
> > >> >
> > >> > term: companion cell
> > >> > goid: TAIR:0000071
> > >> > definition: A specialized parenchyma cell associated with a sieve-tube
> > >> member in angiosperm phloem and arising from the same mother cell as
> > >> the sieve-tube member.
> > >> > definition_reference: ISBN:0879015322
> > >> >
> > >> > term: contact cell
> > >> > goid: KI:0004002
> > >> > definition: An axial parenchyma or a ray cell physiologically
> > >> associated with a tracheary element. Also a cell next to a stoma.
> > >> > definition_reference: ISBN:0471245208
> > >> >
> > >> > term: cork cell
> > >> > goid: KI:0004003
> > >> > definition: A phellem cell derived from the phellogen, nonliving at
> > >> maturity, and having suberized walls; protective in function because
> > >> the walls are highly impervious to water.
> > >> > definition_reference: ISBN:0471245208
> > >> >
> > >> > term: degenerate megaspore
> > >> > goid: TAIR:0000245
> > >> > definition: in monosporic and bisporic megasporogenesis: the
> > >> megaspore(s) that do not participate in megagametogenesis.
> > >> > definition_reference: TAIR:lr
> > >> >
> > >> > term: egg cell
> > >> > goid: TAIR:0000190
> > >> > definition: the female gamete
> > >> > definition_reference: TAIR:lr
> > >> >
> > >> > term: epidermal initial
> > >> > goid: TAIR:0000349
> > >> > definition: a relatively unspecialized cell that will give rise to
> > >> specialized cell types of the epidermis
> > >> > definition_reference: TAIR:lr
> > >> >
> > >> > term: epithelium cell
> > >> > goid: KI:0004004
> > >> > definition: A compact layer of cells, often secretory in function,
> > >> covering a free surface or lining a cavity.
> > >> > definition_reference: ISBN:0471245208
> > >> >
> > >> > term: epithem cell
> > >> > goid: TAIR:0000066
> > >> > definition: Cells that constitute the mesophyll of a hydathode and are
> > >> located between the xylem endings and the epidermis. Proposed to be
> > >> involved in the retrieval of solutes from the xylem sap.
> > >> > definition_reference: PMID:12662305
> > >> > definition_reference: ISBN:0471245208
> > >> >
> > >> > term: fiber tracheid
> > >> > goid: TAIR:0000355
> > >> > definition: A fiber like tracheid in the secondary xylem; commonly
> > >> thick walled, with pointed ends and bordered pits that have lenticular
> > >> to slit like apertures.
> > >> > definition_reference: ISBN:0471245208
> > >> >
> > >> > term: filliform apparatus
> > >> > goid: TAIR:0000193
> > >> > definition: A complex of cell wall invaginations in a synergid cell
> > >> similar to those in transfer cells.
> > >> > definition_reference: ISBN:0471245208
> > >> >
> > >> > term: functional megaspore
> > >> > goid: TAIR:0000244
> > >> > definition: in monosporic and bisporic megasporogenesis: the
> > >> megaspore(s) that will undergo megagametogenesis.
> > >> > definition_reference: TAIR:lr
> > >> >
> > >> > term: fusiform initial
> > >> > goid: TAIR:0000079
> > >> > definition: An elongated cell with approximately wedge-shaped ends,
> > >> found in the vascular cambium, which gives rise to the elements of the
> > >> axial system in the secondary vascular tissues.
> > >> > definition_reference: ISBN:0471245208
> > >> >
> > >> > term: generative cell
> > >> > goid: TAIR:0000168
> > >> > definition: The cell that will give rise to two sperm cells which will
> > >> participate in double fertilization.
> > >> > definition_reference: TAIR:KI
> > >> >
> > >> > term: guard cell
> > >> > goid: TAIR:0000293
> > >> > definition: one of a pair of cells flanking the stomatal pore and
> > >> causing the opening and closing of the pore by changes in turgor.
> > >> > definition_reference: ISBN:0471245208
> > >> >
> > >> > term: guard mother cell
> > >> > goid: TAIR:0000351
> > >> > definition: epidermal cell that that divides to produce the guard
> > >> cells.
> > >> > definition_reference: ISBN:0471245208
> > >> >
> > >> > term: idioblast
> > >> > goid: TAIR:0000283
> > >> > definition: A cell in a tissue that markedly differs in form, size, or
> > >> contents from other cells in the same tissue.
> > >> > definition_reference: ISBN:0471245208
> > >> >
> > >> > term: laticiferous cell
> > >> > goid: KI:0004005
> > >> > definition: A specialized cells or ducts resembling vessels; they form
> > >> branched networks of latex-secreting cells in the phloem and other
> > >> parts of plants.
> > >> > definition_reference:
> > >> :http://academic.kellogg.edu/herbrandsonc/bio111/glossary/glossary.htm
> > >> >
> > >> > term: megaspore
> > >> > goid: TAIR:0000243
> > >> > definition: A haploid (1n) spore developing into a female gametophyte
> > >> in heterosporous plants.
> > >> > definition_reference: ISBN:0471245208
> > >> >
> > >> > term: megasporocyte
> > >> > goid: TAIR:0000431
> > >> > definition: A diploid (2n) cell that undergoes meiosis and produces
> > >> four haploid (1n) megaspores; also called megaspore mother cell.
> > >> > definition_reference: ISBN:0471245208
> > >> >
> > >> > term: meristemoid
> > >> > goid: TAIR:0000070
> > >> > definition: A cell or a group of cells constituting an active locus of
> > >> meristematic activity in a tissue composed of somewhat older,
> > >> differentiating cells.
> > >> > definition_reference: TAIR:syr
> > >> > definition_reference: ISBN:0471245208
> > >> >
> > >> > term: mesophyll cell
> > >> > goid: KI:0004006
> > >> > definition: Cell that constitute leaf mesophyll.
> > >> > definition_reference: TAIR:KI
> > >> >
> > >> > term: microspore
> > >> > goid: TAIR:0000297
> > >> > definition: A haploid (1n) spore developing into a male gametophyte in
> > >> heterosporous plants; the uninucleate pollen grain in seed plants.
> > >> > definition_reference: ISBN:0471245208
> > >> >
> > >> > term: microsporocyte
> > >> > goid: TAIR:0000160
> > >> > definition: A diploid (2n) cell that undergoes meiosis and forms four
> > >> haploid (1n) microspores; also called microspore mother cell and, in
> > >> seed plants, pollen mother cell.
> > >> > definition_reference: ISBN:0471245208
> > >> >
> > >> > term: mucilage cell
> > >> > goid: TAIR:0000373
> > >> > definition: Cell containing mucilages or gums or similar carbohydrate
> > >> material characterized by the property of swelling in water.
> > >> > definition_reference: ISBN:0471245208
> > >> >
> > >> > term: myrosin cell
> > >> > goid: TAIR:0000352
> > >> > definition: Cell containing glucosinolates ("mustard oil glucosides")
> > >> and myrosinases, enzymes hydrolyzing the glucosinolates. Occurs in
> > >> eleven dicotyledon families, the two largest of which are the
> > >> Brassicaceae and Euphorbiaceae.
> > >> > definition_reference: ISBN:0471245208
> > >> >
> > >> > term: parenchyma cell
> > >> > goid: TAIR:0000074
> > >> > definition: Typically this is a not distinctly specialized cell with a
> > >> nucleate protoplast concerned with one or more of the various
> > >> physiological and biochemical activities in plants. Varies in size,
> > >> form, and wall structure.
> > >> > definition_reference: ISBN:0471245208
> > >> >
> > >> > term: passage cell
> > >> > goid: TAIR:0000353
> > >> > definition: Cell in exodermis or endodermis that remains thin walled
> > >> when the associated cells develop thick secondary walls. Has casparian
> > >> strip in endodermis.
> > >> > definition_reference: ISBN:0471245208
> > >> >
> > >> > term: pavement cell
> > >> > goid: TAIR:0000332
> > >> > definition: epidermal cells with a characteristic convoluted
> > >> anticlinal cell walls that give a jigsaw like appearance to the
> > >> lamina.
> > >> > definition_reference: ISBN:087694289
> > >> >
> > >> > term: phelloid cell
> > >> > goid: KI:0004007
> > >> > definition: A cell within the phellem (cork) but distinct from the
> > >> cork cell in having no suberin in its walls.
> > >> > definition_reference: ISBN:0471245208
> > >> >
> > >> > term: phloem initial
> > >> > goid: TAIR:0000400
> > >> > definition: A cambial cell on the phloem side of the cambial zone that
> > >> is the source of one or more cells arising by periclinal divisions and
> > >> differentiating into phloem elements with or without additional
> > >> divisions in various planes. Sometimes called phloem mother cell.
> > >> > definition_reference: ISBN:0471245208
> > >> >
> > >> > term: photosynthetic cell
> > >> > goid: KI:0004008
> > >> > definition: A chloroplast-containing cell engaged in photosynthesis.
> > >> > definition_reference: ISBN:0471245208
> > >> >
> > >> > term: polar nucleus
> > >> > goid: TAIR:0000196
> > >> > definition: One of two nuclei in the central cell of a mature embryo
> > >> sac. The two nuclei are derived from groups of nuclei at the two
> > >> opposite poles of the eight-nucleate embryo sac.
> > >> > definition_reference: ISBN:047125208
> > >> >
> > >> > term: primary endosperm nucleus
> > >> > goid: TAIR:0000195
> > >> > definition: Nucleus resulting from the fusion of the male gamete and
> > >> two polar nuclei in the central cell of the embryo sac.
> > >> > definition_reference: ISBN:0471245208
> > >> >
> > >> > term: ray cell
> > >> > goid: TAIR:0000083
> > >> > definition: A cell derived from the ray initial and composes all rays
> > >> (panels of tissue variable in height and width, formed by the ray
> > >> initials in the vascular cambium and extending radially in the
> > >> secondary xylem and secondary phloem) in the secondary vascular
> > >> tissues.
> > >> > definition_reference: ISBN:0471245208
> > >> >
> > >> > term: ray initial
> > >> > goid: TAIR:0000082
> > >> > definition: A meristematic ray cell in the vascular cambium that gives
> > >> rise to ray cells of the secondary xylem and secondary phloem.
> > >> > definition_reference: ISBN:0471245208
> > >> >
> > >> > term: root hair
> > >> > goid: TAIR:0000256
> > >> > definition: A type of trichome on root epidermis that is a simple
> > >> extension of an epidermal cell and is concerned with absorption of
> > >> soil solution.
> > >> > definition_reference: ISBN:0471245208
> > >> >
> > >> > term: sclerenchyma cell
> > >> > goid: TAIR:0000077
> > >> > definition: Cell variable in form and size, being more or less thick,
> > >> often lignified, secondary walls. Belongs to the category of subcells
> > >> and may or may not be devoid of protoplast at maturity.
> > >> > definition_reference: ISBN:0471245208
> > >> >
> > >> > term: sieve cell
> > >> > goid: TAIR:0000285
> > >> > definition: A type of sieve element that has relatively
> > >> undifferentiated sieve areas (with narrow pores), rather uniform in
> > >> structure on all walls; that is, there are no sieve plates. Typical of
> > >> gymnosperms and lower vascular plants.
> > >> > definition_reference: ISBN:0471245208
> > >> >
> > >> > term: sieve element
> > >> > goid: TAIR:0000286
> > >> > definition: The cell in the phloem tissue concerned with mainly
> > >> longitudinal conduction of food materials. Classified into sieve cell
> > >> and sieve tube member.
> > >> > definition_reference: ISBN:0471245208
> > >> >
> > >> > term: sieve tube member
> > >> > goid: TAIR:0000289
> > >> > definition: One of the series of cellular components of a sieve tube.
> > >> It shows a more or less pronounced differentiation between sieve
> > >> plates (wide pores) and lateral sieve areas (narrow pores). Also sieve
> > >> tube element and the obsolete sieve tube segment.
> > >> > definition_reference: ISBN:0471245208
> > >> >
> > >> > term: sillica cell
> > >> > goid: KI:0004009
> > >> > definition: One of two types of short cells in the epidermis of
> > >> grasses, silica cells have deposits of silica in them.
> > >> > definition_reference: ISBN:0471245208
> > >> >
> > >> > term: socket cell
> > >> > goid: TAIR:0000115
> > >> > definition: Cell that surround a trichome and provides support for the
> > >> trichome.
> > >> > definition_reference: ISBN:0471245208
> > >> >
> > >> > term: sperm cell
> > >> > goid: TAIR:0000084
> > >> > definition: Male gamete, part of male germ unit.
> > >> > definition_reference: TAIR:KI
> > >> >
> > >> > term: starch sheath cell
> > >> > goid: TAIR:0000020
> > >> > definition: Cells characterized by conspicuous and rather stable
> > >> accumulation of starch.
> > >> > definition_reference: ISBN:044174520
> > >> >
> > >> > term: subsidiary cell
> > >> > goid: TAIR:0000284
> > >> > definition: an epidermal cell associated with a stoma and at least
> > >> morphologically distinguishable from the epidermal cells composing the
> > >> groundmass of the tissue.
> > >> > definition_reference: ISBN:047124520
> > >> >
> > >> > term: synergid
> > >> > goid: TAIR:0000191
> > >> > definition: cells in the micropylar end of the embryo sac associated
> > >> with the egg in the egg apparatus of angiosperms. Play a vital role in
> > >> fertilization.
> > >> > definition_reference: ISBN:047125208
> > >> >
> > >> > term: tracheary element
> > >> > goid: TAIR:0000290
> > >> > definition: general term for a water conducting cell, tracheid or
> > >> vessel member.
> > >> > definition_reference: ISBN:0471245208
> > >> >
> > >> > term: tracheid
> > >> > goid: TAIR:0000301
> > >> > definition: A tracheary element of the xylem that has no perforations,
> > >> as contrasted with a vessel member. May occur in primary and in
> > >> secondary xylem. May have any kind of secondary wall thickening found
> > >> in tracheary elements.
> > >> > definition_reference: ISBN:0471245208
> > >> >
> > >> > term: transfer cell
> > >> > goid: TAIR:0000078
> > >> > definition: Parenchyma cell with the wall ingrowth (or ivaginations)
> > >> that increase the surface of the plasmalemma. Appears to be
> > >> specialized for short-distance transfer of solutes.
> > >> > definition_reference: ISBN:0471245208
> > >> >
> > >> > term: trichoblast
> > >> > goid: TAIR:0000262
> > >> > definition: Commonly used for a cell in root epidermis that gives rise
> > >> to a root hair. The daughter cell produced by the asymmetric division
> > >> of a root epidermal cell that gives rise to a root hair.
> > >> > definition_reference: ISBN:0471245208
> > >> >
> > >> > term: trichome
> > >> > goid: TAIR:0000282
> > >> > definition: An outgrowth from the epidermis. Trichomes vary in size
> > >> and complexity and include hairs, scales, and other structures and may
> > >> be glandular. In Arabidopsis, patterning of trichome development is
> > >> not random but does not appear to be lineage-based like stomata.
> > >> > definition_reference: ISBN:0471245208
> > >> >
> > >> > term: vegetative cell
> > >> > goid: TAIR:0000169
> > >> > definition: Cell type formed after the first mitotic division of the
> > >> microgametophye, The nucleus of this cell migrates to the tip of the
> > >> pollen tube after germination and disintegrates when the pollen tube
> > >> penetrates the nucellus.
> > >> > definition_reference: TAIR:lr
> > >> > definition_reference: ISBN:0140514031
> > >> >
> > >> > term: xylem element
> > >> > goid: TAIR:0000273
> > >> > definition: Cells composing the xylem
> > >> > definition_reference: ISBN:0471245208
> > >> >
> > >> > term: xylem fiber cell
> > >> > goid: TAIR:0000274
> > >> > definition: A fiber of the xylem tissue, Two types are recognized in
> > >> the secondary xylem: fiber tracheids and libriform fibers.
> > >> > definition_reference: ISBN:0471245208
> > >> >
> > >> > term: xylem initial
> > >> > goid: TAIR:0000275
> > >> > definition: A cambial cell on the xylem side of the cambial zone that
> > >> is the source of one or more cells arising by periclinal divisions and
> > >> differentiating into xylem elements either with or without additional
> > >> divisions in various planes. Sometimes called xylem mother cell.
> > >> > definition_reference: ISBN:047125208
> > >> >
> > >> > term: zygote
> > >> > goid: TAIR:0000423
> > >> > definition: Diploid cell produced by the fusion of sperm cell nucleus
> > >> and egg cell in the process of double fertilization.
> > >> > definition_reference: TAIR:KI
> > >> >
> > >> >
> > >> >
> > >> > ------------------------------------------------------------------------
> > >> >
> > >> > !autogenerated-by: DAG-Edit version 1.410
> > >> > !saved-by: Katica Ilic
> > >> > !date: Tue Mar 23 17:53:40 PST 2004
> > >> > !version: $Revision: 1.24 $
> > >> > !type: % is_a is a
> > >> > !type: < part_of Part of
> > >> > !type: ~ develops_from develops from
> > >> > $cell type ; TAIR:0000298
> > >> > %antipodal cell ; TAIR:0000192
> > >> > %apical cell ; KI:0004000
> > >> > %bulliform cell ; KI:0004001
> > >> > %cambial initial ; TAIR:0000295, TAIR:0000080 ; synonym:cambial cell
> > >> > %fusiform initial ; TAIR:0000079 ; CL:0000009
> > >> > ~axial cell ; TAIR:0000081 ; CL:0000363
> > >> > %ray initial ; TAIR:0000082 ; CL:0000316
> > >> > ~ray cell ; TAIR:0000083 ; CL:0000364
> > >> > %central cell ; TAIR:0000194
> > >> > <polar nucleus ; TAIR:0000196
> > >> > <primary endosperm nucleus ; TAIR:0000195
> > >> > %collenchyma cell ; TAIR:0000075
> > >> > %contact cell ; KI:0004002
> > >> > %cork cell ; KI:0004003
> > >> > %egg cell ; TAIR:0000190
> > >> > %epithelium cell ; KI:0004004
> > >> > %epithem cell ; TAIR:0000066 ; CL:0000074
> > >> > %generative cell ; TAIR:0000168
> > >> > ~sperm cell ; TAIR:0000084 % cell type ; TAIR:0000298 ~ microspore ;
> > >> TAIR:0000297
> > >> > %idioblast ; TAIR:0000283
> > >> > %laticiferous cell ; KI:0004005
> > >> > %megasporocyte ; TAIR:0000431 ; synonym:archesporial cell ;
> > >> synonym:megaspore mother cell
> > >> > ~megaspore ; TAIR:0000243
> > >> > %degenerate megaspore ; TAIR:0000245
> > >> > %functional megaspore ; TAIR:0000244
> > >> > %meristemoid ; TAIR:0000070
> > >> > %epidermal initial ; TAIR:0000349
> > >> > ~atrichoblast ; TAIR:0000263 ; synonym:non-hair cell
> > >> > ~guard mother cell ; TAIR:0000351
> > >> > ~guard cell ; TAIR:0000293
> > >> > ~pavement cell ; TAIR:0000332
> > >> > ~socket cell ; TAIR:0000115
> > >> > ~trichoblast ; TAIR:0000262 ; synonym:hair cell
> > >> > ~root hair ; TAIR:0000256
> > >> > %trichome ; TAIR:0000282
> > >> > %mesophyll cell ; KI:0004006
> > >> > %microsporocyte ; TAIR:0000160 ; synonym:pollen mother cell ;
> > >> synonym:primary sporogenous cell
> > >> > ~microspore ; TAIR:0000297
> > >> > ~sperm cell ; TAIR:0000084 % cell type ; TAIR:0000298 ~ generative
> > >> cell ; TAIR:0000168
> > >> > %mucilage cell ; TAIR:0000373
> > >> > %myrosin cell ; TAIR:0000352
> > >> > %parenchyma cell ; TAIR:0000074
> > >> > %chlorenchyma cell ; TAIR:0000076
> > >> > %companion cell ; TAIR:0000071
> > >> > %transfer cell ; TAIR:0000078
> > >> > %passage cell ; TAIR:0000353
> > >> > %phelloid cell ; KI:0004007
> > >> > %phloem initial ; TAIR:0000400
> > >> > %photosynthetic cell ; KI:0004008
> > >> > %sclerenchyma cell ; TAIR:0000077
> > >> > %sieve element ; TAIR:0000286
> > >> > %sieve cell ; TAIR:0000285
> > >> > %sieve tube member ; TAIR:0000289 ; synonym:\<new synonym> ;
> > >> synonym:sieve tube element
> > >> > %sillica cell ; KI:0004009
> > >> > %sperm cell ; TAIR:0000084 ~ generative cell ; TAIR:0000168 ~
> > >> microspore ; TAIR:0000297
> > >> > %starch sheath cell ; TAIR:0000020
> > >> > %subsidiary cell ; TAIR:0000284, TAIR:0000296 ; synonym:accessory
> > >> cell
> > >> > %synergid ; TAIR:0000191
> > >> > <filliform apparatus ; TAIR:0000193
> > >> > %tracheary element ; TAIR:0000290
> > >> > %fiber tracheid ; TAIR:0000355
> > >> > %tracheid ; TAIR:0000301
> > >> > %vegetative cell ; TAIR:0000169
> > >> > %xylem initial ; TAIR:0000275 ; synonym:xylem mother cell
> > >> > ~xylem element ; TAIR:0000273
> > >> > ~xylem fiber cell ; TAIR:0000274
> > >> > %zygote ; TAIR:0000423 ; synonym:one cell stage % embryonic ;
> > >> TAIR:0000374 % embryonic ; TAIR:0000374 % embryonic ; TAIR:0000374 %
> > >> embryonic ; TAIR:0000374 % embryonic ; TAIR:0000374 % embryonic ;
> > >> TAIR:0000374
> > >>
> > >> --
> > >> ******************************
> > >> Pankaj Jaiswal, PhD
> > >> Gramene Database
> > >> Department of Plant Breeding
> > >> G-15 Bradfield Hall
> > >> Cornell University
> > >> Ithaca, NY-14853
> > >>
> > >> tel: +1-607-255-3103
> > >> fax: +1-607-255-6683
> > >> web: http://www.gramene.org
> > >> *****************************
> > >>
> > >>
> > >
> > > --------------------------------------------------------------------------
> > > Katica Ilic katica at acoma.stanford.edu
> > > The Arabidopsis Information Resource Tel: (650) 325-1521 ext. 253
> > > Carnegie Institution of Washington FAX: (650) 325-6857
> > > Department of Plant Biology URL: http://arabidopsis.org/
> > > 260 Panama St.
> > > Stanford, CA 94305
> > > U.S.A.
> > > --------------------------------------------------------------------------
> > >
> > >
> > >
> > >
> >
> >
> > --
> > Pankaj Jaiswal
> > Gramene Database
> > www.gramene.org
> >
>
> -----------------------------------------------------------------------------
> Sue Rhee rhee at acoma.stanford.edu
> The Arabidopsis Information Resource URL: www.arabidopsis.org
> Carnegie Institution of Washington FAX: +1-650-325-6857
> Department of Plant Biology Tel: +1-650-325-1521 ext. 251
> 260 Panama St.
> Stanford, CA 94305
> U.S.A.
> -----------------------------------------------------------------------------
>
--------------------------------------------------------------------------
Katica Ilic katica at acoma.stanford.edu
The Arabidopsis Information Resource Tel: (650) 325-1521 ext. 253
Carnegie Institution of Washington FAX: (650) 325-6857
Department of Plant Biology URL: http://arabidopsis.org/
260 Panama St.
Stanford, CA 94305
U.S.A.
--------------------------------------------------------------------------
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