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	Auxin - Wikipedia, the free encyclopedia
		Auxins are often used to promote root growth as a main compound of rooting stimulators (beneficial mainly in horticulture for treating of stem cuttings).
		Auxin employment begins in the embryo of the plant, where directional distribution of auxin ushers in subsequent growth and development of primary growth poles, then forms buds of future organs.
		Since Auxin attracts nutrients to the cell where it is, this transport of auxin away from sugar synthesis may partly explain the transport of sugar in the phloem to the roots.
	en.wikipedia.org /wiki/Auxin (1421 words)

	Auxin
		An auxin transporter — one of the PIN proteins — is inserted in the plasma membrane at the lateral face of cells of the shoot.
		The localized accumulation of auxin in epidermal cells of the root initiates the formation of lateral or secondary roots.
		Auxin (IAA) is actively transported into cells by a transmembrane transporter and leaves the cells by facilitated diffusion through a different transporter.
	users.rcn.com /jkimball.ma.ultranet/BiologyPages/A/Auxin.html (1290 words)

	auxin. The Columbia Encyclopedia, Sixth Edition. 2001-05
		Auxins affect numerous plant processes, e.g., cell division and elongation, autumnal loss of leaves, and the formation of buds, roots, flowers, and fruit.
		It is known that phototropism is due to the inhibition of auxins by light; the cells on that side of a plant exposed to light do not divide or grow as quickly as those on the shaded side, and thus the plant grows toward the light source.
		Auxins are widely used commercially to produce more vigorous growth, to promote flowering and fruiting and also root formation in plants not easily propagated by stem cuttings, to retard fruit drop, and to produce seedless varieties (e.g., of tomatoes) by parthenogenetic fruiting.
	www.bartleby.com /65/au/auxin.html (318 words)

	auxin (Site not responding. Last check: 2007-10-13)
		Auxins influence many aspects of plant growth and development, including cell enlargement, inhibition of development of axillary buds, tropisms, and the initiation of roots.
		Auxin affects cell division mainly at the tip, because it is here that cell division in a stem or root mainly occurs.
		Synthetic auxins are used in hormone rooting powders to encourage cuttings to root.
	www.tiscali.co.uk /reference/encyclopaedia/hutchinson/m0007030.html (322 words)

	What does the term auxin mean?
		A key component in the growth response of the cells to auxin is the proton pumps located in the plasma membrane.
		The proton pumps are stimulated by the auxin, in the shoots region of elongation.
		Auxin also affects secondary growth by influencing the differentiation of secondary xylem: this is all in addition to stimulating cell elongation.
	okok.essortment.com /planthormonegr_reua.htm (518 words)

	Auxins (Site not responding. Last check: 2007-10-13)
		Compounds are generally considered auxins if they can be characterized by their ability to induce cell elongation in stems and otherwise resemble indoleacetic acid (the first auxin isolated) in physiological activity.
		Auxins usually affect other processes in addition to cell elongation of stem cells but this characteristic is considered critical of all auxins and thus "helps" define the hormone (Arteca, 1996; Mauseth, 1991; Raven, 1992; Salisbury and Ross, 1992).
		The term comes from the Greek auxein meaning "to grow." Compounds are generally considered auxins if they are synthesized by the plant and are substances which share similar activity to IAA (the first auxin to be isolated from plants) (Arteca, 1996; Davies, 1995).
	www.plant-hormones.info /auxins.htm (1334 words)

	Plant Physiology Online: Exploring the Cellular Basis of Polar Auxin Transport
		In tropic growth, auxin is diverted laterally to one side of the plant stem or root; therefore, As a result, the cells in that portion of the stem or root below the point of redistribution elongate.
		Auxin is thus thought to maintain cellular polarity and, as a result, its own asymmetric transport mechanism.
		Auxin has been reported to stimulate IAA transport (Rayle et al., 1969) and is generally thought to be required for the establishment of both embryonic polarity (Geldner et al., 2000) and auxin transport pathways themselves (reviewed by Berleth and Sachs, 2001).
	www.plantphys.net /article.php?ch=e&id=264 (1897 words)

	auxin
		Characterization of auxin transport in the GPS mutants of Arabidopsis.
		Effect of auxin transport inhibitors on leaf expansion in the common bean (Phaseolus Vulgaris).
		Relative efficiency of rhizobacteria for auxin biosynthesis in rhizosphere and non-rhizosphere soils.
	www.infoplease.com /ce6/sci/A0805426.html (444 words)

	Localization of the auxin permease AUX1 suggests two functionally distinct hormone transport pathways operate in the ...
		Auxins are initially synthesized in the shoot apex, then transported to their target tissues.
		Ishikawa, H. and Evans, M.L. The role of the distal elongation zone in the response of maize roots to auxin and gravity.
		Maher, E.P. and Martindale, S.J.B. Mutants of Arabidopsis-thaliana with altered responses to auxins and gravity.
	www.genesdev.org /cgi/content/full/15/20/2648 (4353 words)

	* Auxin - (Bonsai): Definition
		Auxins are that stimulate growth and elongation of plant tissues.
		Simultaneously, you are removing the strong auxin signal that has been keeping the buds behind the terminal bud suppressed.
		This type of growth is referred to as apical growth and is stimulated by the growth hormone auxin.
	en.mimi.hu /bonsai/auxin.html (161 words)

	AUXIN TRANSPORT
		When ethylene binds, either auxin binding or function of the protein in transporting auxin is inhibited.
		Auxin polar transport is important in itself for developmental responses.
		3) elongation is developmental, and response to auxin is moderated by developmental stage of coleoptile and by environmental factors
	www.public.iastate.edu /~bot.512/lectures/Auxin-action.htm (2057 words)

	Bennett Lab Research - Auxin Transport
		Auxins represent important hormonal regulators of plant development (reviewed by Swarup et al, 2001).
		Studies using auxin efflux carrier inhibitors have demonstrated that the polarity of auxin movement provides an important developmental signal during embryogenesis, lateral root initiation (Casimiro et al, 2001), gravitropism (Marchant et al, 1999), vascular patterning and leaf phyllotaxis.
		Plants treated with this new class of auxin transport inihibitor exhibit defects in root gravitropism (Parry et al, 2001) and embryo patterning (James & Bennett, unpub.
	www.nottingham.ac.uk /bennett-lab/auxin_transport.html (499 words)

	BIG: a calossin-like protein required for polar auxin transport in Arabidopsis -- Gil et al. 15 (15): 1985 -- Genes and ...
		Suppression of overexpression of light-regulated genes in dark-grown doc1 by auxin overproducing yucca.
		overexpression of the auxin biosynthetic gene YUCCA in the doc1-1
		for auxin in the repression of light-regulated genes in dark-grown
	www.genesdev.org /cgi/content/full/15/15/1985 (7613 words)

	From the Cover: Gravity-regulated differential auxin transport from columella to lateral root cap cells -- ...
		auxin accumulation was inferred from the expression of an endoplasmatic
		Auxin biosensor signal in roots grown on 1 µM IAA (A-C), 1 µM 1-NAA (D-F), 1 µM 2,4-D (G-I) in vertically grown roots (A, D, and G), and after 5 h (B, E, and H) and 24 h (C, F, and I) of gravistimulation, respectively.
		Auxin biosensor signal in roots grown on 10 µM NPA (A and B), 20 µM BFA (C and D), and 50 µM 1-NOA (E and F) in vertically grown (B, C, and E) and 24-h gravistimulated (B, D, and F) roots.
	www.pnas.org /cgi/content/full/100/5/2987 (3837 words)

	Auxin takes root
		The plant hormone, auxin, has been linked to root formation, but the actual pathway of its action has, until recently, remained a mystery.
		Finally, NAC1 was linked to the auxin pathway by demonstrating that NAC1 is regulated by auxin, and that the effect of auxin on root formation is mediated by NAC1.
		The strides which Dr. Chua and his colleagues have made in delineating the pathway of auxin signaling represents a tremendous advance in the understanding of the molecular pathway of root development.
	www.eurekalert.org /pub_releases/2000-11/CSHL-Atr-3011100.php (324 words)

	Auxin modulates the degradation rate of Aux/IAA proteins -- Zenser et al. 98 (20): 11795 -- Proceedings of the National ...
		IAA1 mRNA is elevated in the presence of exogenous auxin (24).
		in auxin responses (18) and is a component of a ubiquitin E3 ligase (19), the substrate-recognition component of the ubiquitin
		RUB-activating enzyme are insensitive to auxin (25, 28).
	www.pnas.org /cgi/content/full/98/20/11795 (4975 words)

	Surge and destroy: the role of auxin in plant embryogenesis -- Jenik and Barton 132 (16): 3577 -- Development
		Auxin efflux carriers are asymmetrically targeted through a mechanism that involves the presence/absence of the PINOID kinase.
		The hypophyseal lineage is derived from the hypophysis (h) – the suspensor cell closest to the embryo proper.
		Auxin transport in the apical domain is directed toward the center of the cotyledon primordia (cot).
	dev.biologists.org /cgi/content/full/132/16/3577 (6229 words)

	References to the Plant Hormone Theory (Site not responding. Last check: 2007-10-13)
		Jacobs, W. Comparison of the movement and vascular differentiation effects of the endogenous Auxin and of phenoxyacetic weed killers in stems and petioles of Coleus and Phaesolus.
		Sachs, T., and Thimann, K. The Role of Auxin and Cytokinin in the Release of Buds from Dominance.
		Torrey, J. Auxin control of vascular pattern formation in regenerating pea root meristems grown in vitro.
	www.planthormones.info /references.htm (779 words)

	Overexpression of Auxin-Binding Protein Enhances the Sensitivity of Guard Cells to Auxin -- Bauly et al. 124 (3): 1229 ...
		Auxin is ubiquitous in the regulation of plant growth and development, having been implicated in responses as diverse as embryogenesis,
		Diekmann W, Venis MA, Robinson DG (1995) Auxins induce clustering of auxin-binding protein at the surface of maize coleoptile protoplasts.
		Henderson J, Macdonald H, Lazarus CM, Napier RM, Hawes CR (1996) Protein retention in the endoplasmic reticulum is not compromised by baculovirus infection.
	www.plantphysiol.org /cgi/content/full/124/3/1229 (5041 words)

	Auxin regulation of axial growth in bryophyte sporophytes: its potential significance for the evolution of early land ...
		Auxin regulation of axial growth in bryophyte sporophytes: its potential significance for the evolution of early land plants -- Poli et al.
		Liu C.-M. Xu N.-H. Chua 1993 Auxin polar transport is essential for the establishment of bilateral symmetry during early plant embryogenesis.
		Schiavone F. Cooke 1987 Unusual patterns of somatic embryogenesis in the domesticated carrot: developmental effects of exogenous auxins and auxin transport inhibitors.
	www.amjbot.org /cgi/content/full/90/10/1405 (6912 words)

	The F-box protein TIR1 is an auxin receptor : Nature (Site not responding. Last check: 2007-10-13)
		The plant hormone auxin regulates diverse aspects of plant growth and development.
		The nature of the signalling cascade that leads to this effect is not known.
		However, recent studies indicate that the auxin receptor and other signalling components involved in this response are soluble factors.
	www.nature.com /nature/journal/v435/n7041/abs/nature03543.html (216 words)

	Plasma Membrane H+-ATPase Is Involved in Auxin-Mediated Cell Elongation during Wheat Embryo Development -- Rober-Kleber ...
		The molecular mechanisms by which auxin acts to direct morphogenesis in specific regions of the embryo are still poorly understood.
		Fischer C, Neuhaus G (1996) Influence of auxin on the establishment of bilateral symmetry in monocots.
		Liu C, Xu Z, Chua N (1993) Auxin polar transport is essential for the establishment of bilateral symmetry during early plant embryogenesis.
	www.plantphysiol.org /cgi/content/full/131/3/1302 (6806 words)

	VAN3 ARF-GAP-mediated vesicle transport is involved in leaf vascular network formation -- Koizumi et al. 132 (7): 1699 ...
		The auxin canalization hypothesis is consistent with the aforementioned
		of the auxin response, cotyledons of 7-day-old seedlings and
		VAN3 is located in a subpopulation of the TGN that may be involved in the transport of auxin signaling modules and/or secreted vascular formation factors.
	dev.biologists.org /cgi/content/full/132/7/1699 (7287 words)

	Auxin: Regulation, Action, and Interaction -- WOODWARD and BARTEL 95 (5): 707 -- Annals of Botany
		Auxin biology is among the oldest fields of experimental plant
		of endogenous auxins, the identification of auxin precursors,
		Auxins promote lateral root formation and inhibit root elongation.
	aob.oxfordjournals.org /cgi/content/full/95/5/707 (5560 words)

	Electromancer! Unsigned Electronic Music Online! (Site not responding. Last check: 2007-10-13)
		It's all about '04, Auxin has some new tunes brewing...
		It is Auxin's first track to be remixed by another Electromancer artist and the first track DR.EM has remixed.....
		An early Sep '02 remix I did of my track Auxin Vs PWM (the other way round??)...
	www.electromancer.com /artist.php?id=4 (429 words)

	Plant Rac-Like GTPases Are Activated by Auxin and Mediate Auxin-Responsive Gene Expression -- Tao et al. 14 (11): 2745 ...
		The faster kinetics of NtRac activation by auxin treatment in these samples and the saturation of this activation by lower concentrations of auxin than those shown in (B) probably were the result of easier access of the exogenously added hormone into the hydroponically grown plants.
		to auxin was observed for seedlings grown in the presence of
		Kovtun, Y., Chiu, W.-l., Zeng, W., and Sheen, J. Suppression of auxin signal transduction by a MAPK cascade in higher plants.
	www.plantcell.org /cgi/content/full/14/11/2745 (7146 words)

	Groupe Catherine PERROT-RECHENMANN (Site not responding. Last check: 2007-10-13)
		Identification and functional studies of auxin perception systems
		Engineering fiber and wood properties in Poplar using innovative functional genomic approaches
		AUXIN AND CELL CYCLE: Molecular mechanisms, cellular and developmental importance
	www.isv.cnrs-gif.fr /cr/indexe.html (38 words)

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