cell type node definitions (fwd)
Katica Ilic
katica at acoma.Stanford.EDU
Thu Apr 1 22:21:29 EST 2004
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
of photosynthetic cell (with guard cell as an example).
Now that I've been thinking more on this topic, here is another
question: Is chlorenchyma cell really a cell type?
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
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