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Topic: Trichome


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In the News (Mon 30 Nov 09)

  
  Trichome Summary
Trichomes are single or multicellular outgrowths of the plant epidermis and collectively constitute the pubescence (hairiness) of the plant surface.
Trichomes of this type are common in the nightshade family (Solanaceae) and plant breeders have created new varieties of potatoes (Solanum) and tomatoes (Lycopersicon) that resist insect pests because of glandular hairs on their leaves and stems.
A common type of trichome is the scale or peltate hair: a plate or shield-shaped cluster of cells attached directly to the surface or borne on a stalk of some kind.
www.bookrags.com /Trichome   (1613 words)

  
 Definition: trichome from Online Medical Dictionary
The cells in the trichome are usually separated by septa but some of the adjacent cells can communicate with one another via small pores (microplasmodesmata) which are not found in a simple chain of bacterial cells such as chains of streptococci.
The cells of a trichome may or may not be covered by a common sheath.
Trichomes are formed by many cyanobacteria and for example by species of Beggiatoa.
cancerweb.ncl.ac.uk /cgi-bin/omd?trichome   (133 words)

  
 Nikon MicroscopyU: SMZ1500 Fluorescence Digital Image Gallery - Trichomes of Mullein Leaf
Trichomes are minute, highly specialized outgrowths that can be found along any surface of a plant and are designed to enhance a plant's chances of survival.
Trichomes that manifest curly shapes are developed for use as reflectors by such plants as the desert brittlebush.
Trichome structures that occur in large numbers may protect a plant by making its tissue less edible or hospitable to feeding and breeding insects.
www.microscopyu.com /galleries/smz1500/trichomesleafsmall.html   (310 words)

  
 Trichome
Trichomes, from the Greek meaning "growth of hair", are fine outgrowths or appendages on plants and protists.
Certain—usually filamentous—algae, have the terminal cell produced into an elongate "hair-like" structure called a trichome.
Trichomes on plants are epidermal outgrowths of various kinds.
articles.gourt.com /en/trichome   (1325 words)

  
 gamma -Radiation Induces Leaf Trichome Formation in Arabidopsis -- Nagata et al. 120 (1): 113 -- PLANT PHYSIOLOGY
Leaf trichomes occur mainly on the adaxial surface of the early rosette leaves of Arabidopsis.
Trichome numbers on the adaxial surfaces of sixth and seventh leaves of Col and Ler were counted and their distribution is indicated in green.
These results suggest that the increase in trichome number is dependent on the age of the leaf and on the ecotype.
www.plantphysiol.org /cgi/content/full/120/1/113   (3208 words)

  
 Generation of a Spacing Pattern: The Role of TRIPTYCHON in Trichome Patterning in Arabidopsis -- Schnittger et al. 11 ...
with one trichome or a cluster of trichomes.
Trichome initiation is restricted to the trichome initiation zone, the border of which is marked by a white line.
is reminiscent of that of unexpanded trichomes in gl2 mutants,
www.plantcell.org /cgi/content/full/11/6/1105   (5931 words)

  
 CiteULike: Tag trichome   (Site not responding. Last check: 2007-10-25)
Mosaic analysis of GL2 gene expression and cell layer autonomy during the specification of Arabidopsis leaf trichomes.
Generation of a spacing pattern: the role of triptychon in trichome patterning in Arabidopsis.
Tissue layer and organ specificity of trichome formation are regulated by GLABRA1 and TRIPTYCHON in Arabidopsis.
www.citeulike.org /tag/trichome   (986 words)

  
 Plant Development :: Research :: Trichomes
Unicellular epidermal trichomes of Arabiopsis are 300-500 µm tall and distributed in a non-random pattern on the leaf surface.
Trichome branch initiation clearly involves microtubules as transient stabilization of microtubules allows branch initiation in unbranched trichomes.
Trichome morphology is greatly altered by changes in the actin cytoskeleton.
www.uoguelph.ca /~jmathur/Research/Trichomes.html   (198 words)

  
 trichome - OneLook Dictionary Search
Tip: Click on the first link on a line below to go directly to a page where "trichome" is defined.
trichome : The American Heritage® Dictionary of the English Language [home, info]
The sporangia of ferns are believed to be of the nature of trichomes.
www.onelook.com /?w=trichome   (192 words)

  
 Glutathione biosynthesis in Arabidopsis trichome cells -- Gutiérrez-Alcalá et al. 97 (20): 11108 -- ...
Trichomes are specialized unicellular or multicellular structures derived from the epidermal cell layer.
predominantly in trichomes of Arabidopsis and Vicia faba (7,
Relatively little labeling is apparent in the trichome because the GSB has been efficiently transported from the cytoplasm into the vacuole, where the massive dilution effectively reduces the concentration to near background levels.
www.pnas.org /cgi/content/full/97/20/11108   (4064 words)

  
 A novel cell-to-cell trafficking assay indicates that the KNOX homeodomain is necessary and sufficient for ...
GL1 expressed in mesophyll cells is cell-autonomous and cannot rescue trichomes in the gl1 mutant.
Trichome rescue rate (percent of T1 plants showing trichome rescue) is on the Y-axis.
Trichome rescue assays were performed using HD regions corresponding to KN1
www.genesdev.org /cgi/content/full/19/7/788   (3959 words)

  
 Trichome Distribution in Arabidopsis thaliana and its Close Relative Arabidopsis lyrata: Molecular Analysis of the ...
Trichome Distribution in Arabidopsis thaliana and its Close Relative Arabidopsis lyrata: Molecular Analysis of the Candidate Gene GLABROUS1 -- Hauser et al.
Trichome Distribution in Arabidopsis thaliana and its Close Relative Arabidopsis lyrata: Molecular Analysis of the Candidate Gene GLABROUS1
in Cond, the accession with the second-highest trichome density.
mbe.oxfordjournals.org /cgi/content/full/18/9/1754   (4564 words)

  
 ARS | Publication request: GLANDULAR TRICHOME EXTRACTS FROM Medicago sativa DETER SETTLING BY THE POTATO LEAFHOPPER, ...
Technical Abstract: Extracts of glandular trichomes from Medicago sativa were tested for their ability to disrupt the settling behavior of the potato leafhopper, Empoasca fabae.
Erect and procumbent glandular trichomes were mechanically isolated from stem sections of the resistant genotype 'G98A', and nonglandular trichomes were collected from the susceptible cultivar 'Ranger'.
Isolated trichomes were extracted with chloroform, acetone, and ethanol, and the resulting crude extracts were applied to the surface of a sachet containing an artificial diet.
www.ars.usda.gov /research/publications/publications.htm?seq_no_115=152230   (370 words)

  
 Competition, Herbivory, and Reproduction of Trichome Phenotypes of Datura wrightii.
The trichome dimorphism of Datura wrightii is intriguing because glandular trichome production has a high fitness cost.
Plants producing glandular trichomes (‘sticky’ plants) are resistant to many insect herbivores that attack plants producing non-glandular trichomes (‘velvety’ plants).
The differences in growth associated with trichome morphology occurred too late to provide a competitive advantage to sticky plants and probably contribute little to the maintenance of D. wrightii’s trichome dimorphism.
repositories.cdlib.org /postprints/425   (272 words)

  
 Functional diversification of MYB23 and GL1 genes in trichome morphogenesis and initiation -- Kirik et al. 132 (7): ...   (Site not responding. Last check: 2007-10-25)
Trichomes were analyzed on the first two leaves of soil-grown
Trichomes at the leaf edges and petioles present in gl1 are absent in the gl1 myb23-2 double mutant.
A myb gene required for leaf trichome differentiation in Arabiopsis is expressed in stipules.
dev.biologists.org /cgi/content/full/132/7/1477   (5234 words)

  
 my not so secret trichome machine !   (Site not responding. Last check: 2007-10-25)
You if you follow the ask ed colum (who doesnt) You might remember a piece were he recomended reptile bulbs for their uv spectrum.
I chose the compact floro for energy use and it was the only bulb @ the place with actual claims to a specific uva/uvb level.
I've never read or heard that UV light is harmful to plants, but I have read that resin production is increased in high UVB environments as a protective measure.
www.cannabisculture.com /forums/printthread.php?Cat=&Board=wwwrooms&main=794397&type=thread   (905 words)

  
 Essential role of a kinesin-like protein in Arabidopsis trichome morphogenesis -- Oppenheimer et al. 94 (12): 6261 -- ...
We are using a combined molecular and genetic approach to study the development of the shape of the trichomes on the plant
Wild-type trichome development begins when a protodermal cell expands out from the plane of the leaf blade.
The defects in trichome morphogenesis in zwi mutants indicate that wild-type ZWI affects several aspects of trichome expansion.
www.pnas.org /cgi/content/full/94/12/6261   (4698 words)

  
 Cyanobacterial Taxonomy '79
Her other three sections, III to V, she describes as "Filamentous; a trichome (chain of cells) which grows by intercalary cell division".
reproduction by random trichome breakage; some germinate from akinetes; form hormogonia distinguishable from mature trichomes by absence of heterocysts and one or more of the following characters: rapid gliding motility, smaller cell size, cell shape and gas vacuolation
heterocysts in the primary trichome are predominantly terminal or lateral
www-cyanosite.bio.purdue.edu /taxon79.html   (522 words)

  
 cot1: A Regulator of Arabidopsis Trichome Initiation -- Szymanski et al. 149 (2): 565 -- Genetics
and to a decrease in trichome number on the adaxial leaf surface.
Trichome Cell Growth in Arabidopsis thaliana Can Be Derepressed by Mutations in at Least Five Genes
Genetic control of trichome branch number in Arabidopsis: the roles of the FURCA loci
www.genetics.org /cgi/content/abstract/149/2/565   (352 words)

  
 Gibberellins Promote Trichome Formation by Up-Regulating GLABROUS1 in Arabidopsis -- Perazza et al. 117 (2): 375 -- ...
Trichome numbers on rosette leaves of wild type and mutants.
Trichome numbers of wild-type plants grown in the presence of uniconazol.
Trichome development is impaired in ga1-3, gl1-1, and ttg-1 mutants.
www.plantphysiol.org /cgi/content/full/117/2/375   (5249 words)

  
 Trichome Cell Morphogenesis
'The mature leaf trichome in Arabidopsis is a large, polarized cell with three branches and a single nucleus located
The trichome initial emerges as an epidermal 'bump' (1), grows in a nearly
The branches and the stalk elongate (4) and secondary branching
www.uni-koeln.de /math-nat-fak/botanik/bot3/huelskamp/Cell%20Morph.html   (75 words)

  
 trichome definition - Dictionary - MSN Encarta
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Trichomes have various shapes and functions, and include root hairs.
encarta.msn.com /encnet/features/dictionary/DictionaryResults.aspx?refid=1861721805   (97 words)

  
 CiteULike: kengg's trichome   (Site not responding. Last check: 2007-10-25)
Recent papers added to kengg's library classified by the tag trichome.
The IRREGULAR TRICHOME BRANCH loci regulate trichome elongation in Arabidopsis.
IRREGULAR TRICHOME BRANCH1 in Arabidopsis encodes a plant homolog of the actin-related protein2/3 complex activator Scar/WAVE that regulates actin and microtubule organization.
www.citeulike.org /user/kengg/tag/trichome   (1081 words)

  
 Roles of the GLABROUS1 and TRANSPARENT TESTA GLABRA Genes in Arabidopsis Trichome Development -- Larkin et al. 6 (8): ...
Roles of the GLABROUS1 and TRANSPARENT TESTA GLABRA Genes in Arabidopsis Trichome Development -- Larkin et al.
and GL1 cooperate at the same point in the trichome developmental pathway.
plant caused trichomes to develop on all shoot epidermal surfaces.
www.plantcell.org /cgi/content/abstract/6/8/1065   (958 words)

  
 A contradictory GLABRA3 allele helps define gene interactions controlling trichome development in Arabidopsis -- Esch ...
DNA of gl3-1 and gl3-sst trichomes undergoes endoreduplication.
In gl3-sst trichomes with a papillate surface, magnesium,
A myb gene required for leaf trichome differentiation in Arabidopsis is expressed in stipules.
dev.biologists.org /cgi/content/full/130/24/5885   (6603 words)

  
 Trichome Healing Center - Van Nuys - RAIDED! - 420 Magazine
Trichome Healing Center - Van Nuys - RAIDED!
The club I have been going to for the last 2 years, which had excellent selection, excellent prices, and great securtity and staff, was raided and is now closed.
Holding onto anger is like grasping a hot coal with the intent of throwing it at someone else; you are the one who gets burned.
www.420times.com /forums/co-ops-dispensaries/54646-trichome-healing-center-van-nuys-raided.html   (257 words)

  
 Definition of trichome - Merriam-Webster Online Dictionary
Etymology: German Trichom, from Greek trichOma growth of hair, from trichoun to cover with hair, from trich-, thrix hair
Find more about "trichome" instantly with Live Search
See a map of "trichome" in the Visual Thesaurus
www.m-w.com /dictionary/trichome   (58 words)

  
 Trichome - ZeBOX Artist
Trichome are borne in the new age of musical experimentation, incorporating traditional electronic instruments with non-traditional digital rendering.
Copyright notice: All songs and material on this page copyrighted by Trichome and protected by copyright law and by international treaties.
If you intend to use it in any other way, please contact the artist(s).
zebox.com /hellfog   (88 words)

  
 Cannabis Culture Magazine Forums: Trichome Macro Gallery Complete
Cannabis Culture Magazine Forums: Trichome Macro Gallery Complete
i haven't seen a trichome pic yet at that mag aside from xo's EM pics.
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www.cannabisculture.com /forums/showflat.php?Cat=&Board=wwwpost&Number=910239&page=121&view=collapsed&sb=5&o=&fpart=1   (545 words)

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