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Topic: Casparian strip

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	cornrmic.htm
		The Casparian strip of the endodermis is a diagnostic feature of most roots that is clearly visible here.
		In this 200x view, thin-walled parenchyma cells of the cortex now stand in contrast to the cells of the endodermis with its prominent Casparian strip.
		The Casparian strip consists of suberized cell surfaces that seal off all intercellular spaces between cells of the cortex and vascular tissues.
	www.mhhe.com /biosci/pae/botany/histology/html/cornrmic.htm (384 words)

	BioG 101-102 -- Self-Test (Site not responding. Last check: 2007-10-16)
		The Casparian strip blocks apoplastic transport of materials from the soil to the xylem.
		The Casparian strip prevents certain solutes, for which there are not specific transporters in the plasma membranes of root cells, from entering the xylem.
		The Casparian strip is essential to the evapotranspirative-mechanism of water transport in the xylem from the roots to the leaves.
	biog-101-104.bio.cornell.edu /BioG101_104/BioG101_Tutor/Quiz_9/m09_q12.html (139 words)

	The Botanical Review: Occurrence of endodermis with a casparian strip in stem and leaf.(Interpreting Botanical ... (Site not responding. Last check: 2007-10-16)
		Occurrence of endodermis with a casparian strip in stem and leaf.(Interpreting Botanical Progress)
		The Botanical Review; 7/1/1997; Lersten, Nels R. It is well known that an endodermis with casparian strip always occurs in roots, but few people are aware that it also occurs in stems and leaves of some vascular plants.
		The present compilation, which does not consider hydathodes, nectaries, or other secretory structures, emphasizes distribution of cauline and foliar endodermis with casparian strip.
	www.highbeam.com /library/doc0.asp?DOCID=1G1:20355301&refid=ip_encyclopedia_hf (208 words)

	Quia - Bio.Ch. 23-2
		The endodermis is found at the inner boundary of the cortex; it's a single layer of cells that enclose the vascular cylinder.
		It's composed of individual cells that look like bricks; each is surrounded on 4 sides by a waterproof strip called the Casparian strip.
		Casparian strips are waterproof strips surrounding each endodermal cell in a root; it's involved in one-way passage of materials into the vascular cylinder in plant roots.
	www.quia.com /jg/131415list.html (581 words)

	[No title] (Site not responding. Last check: 2007-10-16)
		The layer of ground tissue forming a sheath around the vascular region and having the casparian strip in its anticlinal walls; may have secondary walls later.
		A cell beneath the protoderm at the apex of a leaf primordium that appears to function as an initial of the interior tissue of the leaf.
		Fatty substance in the cell wall of cork tissue and in the casparian strip of the endodermis.
	www.gramene.org /mailarch/att-0248/esau_glossary (14997 words)

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	18.cheproprio.com /sydneymoonreddressstriptease (668 words)

	[No title] (Site not responding. Last check: 2007-10-16)
		QUEST 2 ANSWER_WRONG Casparian strips QUEST 2 COACHING_3 The Casparian strip is a waterproof band found in roots.
		QUEST 7 ANSWER_WRONG Casparian strip QUEST 7 COACHING_2 Stomata are found on leaves and stems; the Casparian strip is found in roots.
		Casparian strip QUEST 4 COACHING_4 You may have the right idea with just a few of your terms confused.
	www.cas.muohio.edu /~meicenrd/BMZ116/CHAV2T~1/MULTIP~4/QUESTI~1.QDL (1803 words)

	root
		This consists of an outer ring of endodermal cells with a waxy Casparian strip that blocks the passage of water and solutes into the stele by the apoplastic pathway (walls).
		Endodermal cells with suberized Casparian Strip running around four sides of each cell - See Fig.
		Lateral roots arise when pericycle cells revert to meristematic activity and the growing lateral root pushes its way through the endodermis and cortex.
	www.clas.ufl.edu /users/gbowes/bsc2010/root.htm (521 words)

	The Botanical Review : Occurrence of endodermis with a casparian strip in stem and leaf.(Interpreting Botanical ... (Site not responding. Last check: 2007-10-16)
		Newly mature endodermal cells always have a casparian strip (c.s.), the narrow to broad band of suberin encircling the anticlinal (radial or transverse) cell walls.
		Contact with adjoining strips seals the endodermis as a whole, and thus water and dissolved substances must enter the protoplast, which to some extent controls what passes in and out of the stele.
		This added wall material may be either uniformly thick or asymmetrically thickened (U-shaped) toward the stele, and it may or may not be lignified.
	static.highbeam.com /t/thebotanicalreview/july011997/occurrenceofendodermiswithacasparianstripinstemand/index.html (275 words)

	American Journal of Botany, 62, 4, April, 1975 (Site not responding. Last check: 2007-10-16)
		The casparian strip formed in situ in the anticlinal walls and remained at a fixed point relative to the endodermis-pericycle boundary.
		The suberized lamella was about 0.04 µm thick except near plasmodesmata and along the adaxial margin of the casparian strip, where it was thicker.
		The adherent affinity between plasmalemma and casparian strip was lost after the strip was covered by suberized lamella.
	www.botany.org /ajb/00029122_di001744.php (2173 words)

	Roots--Organization (Site not responding. Last check: 2007-10-16)
		The most important distiguishing factor is the casparian strip, a layer of a waxy substance called suberin that has been embedded into the endodermal cell wall.The casparian strip prevents the passage of water and other molecules through the endodermis via an apoplastic pathway.
		Right inside of the endodermis is the pericycle, a layer of meristematic cells that functions in the formation of lateral roots, the vascular cambium, and the cork cambium.
		In order to show the casparian strip in the root endodermis, we used a special dye that stains suberin and glows under a fluorescent light.
	trc.ucdavis.edu /plb/PLB105/Students/tomato/Roots/rootorg.html (276 words)

	How did the casparian strip get its name casparian.
		How did the casparian strip get its name casparian.
		Subject: How did the casparian strip get its name casparian.
		Re:How did the casparian strip get its name casparian.
	www.madsci.org /posts/archives/mar97/855101220.Bt.q.html (89 words)

	Endodermis - Encyclopedia.WorldSearch (Site not responding. Last check: 2007-10-16)
		Water is thus forced toward the center of the root, into the xylem, where it is then transported into the rest of the plant.
		Occurrence of endodermis with a casparian strip in stem and leaf.(Interpreting Botanical Progress) : An article from: The Botanical Review
		A study of the foliar endodermis in the Plantaginaceae (Transactions of the Royal Society of Edinburgh)
	encyclopedia.worldsearch.com /endodermis.htm (106 words)

	Water and Mineral Transport
		This water has not crossed a plasma membrane.
		However, the inner boundary of the cortex, the endodermis, is impervious to water because of a band of suberized matrix called the casparian strip.
		Therefore, to enter the stele, apoplastic water must enter the symplasm of the endodermal cells.
	users.rcn.com /jkimball.ma.ultranet/BiologyPages/X/Xylem.html (1631 words)

	type_Document_Title_here (Site not responding. Last check: 2007-10-16)
		The casparian strip forces water (and any dissolved minerals) to pass through the endodermal cells before entering the stele of the root.
		This is essential; without the casparian strip, water (and dissolved substances) could enter the stele via an apoplastic pathway, move into the dead xylem, and move up the plant without any prefiltering.
		By forcing water to follow a symplastic pathway, the casparian strip allows the plant to select what substances pass into the stele and up into the plant.
	www.eeb.uconn.edu /Courses/Bio108/Bio108f98/Practice9_16answer.html (902 words)

	2002F_lect5(roots).htm (Site not responding. Last check: 2007-10-16)
		Casparian strip in the cell wall of root endodermis forces water to pass through cell membranes of the endodermis cells and allow plants to regulate entry of mineral ions (symplastic transport).
		Tissue types in regular roots (you should be able to point them in a typical root diagram, and describe their main function:
		Suberin-rich strip in cell walls of root endodermis cells, that prevents apoplastic movement of water and minerals from cortex to stele.
	www.clas.ufl.edu /users/kitajima/BOT2010/2002F_lect5(roots).htm (443 words)

	Ladies in the Radiator: The Gig
		Well the gig shot past chaotically, but if all the people I talked to there were to be believed, an enjoyable night was had by all.
		I have some Casparian Strip photos but they were all taken in a drunken stupor, so apologies for the quality.
		Thanks very much everyone who attended, to Sam Leivers in all his gouty glory, and to Casparian Strip for a mega-lovely set (including an epic cover of Rupolph the Red Nosed Reindeer).
	www.linther.blogspot.com /2004/12/gig.html (143 words)

	Lecture 30: Plant transport
		Uptake of mineral ions is regulated -- don't want too much of a good (or bad) thing -- e.g., certain salts, heavy metal ions.
		Endodermis surrounds vascular cylinder, Casparian strip in endodermis prevents flow of water around cells --> water and ions must move through cell cytoplasm.
		This allows membrane transport proteins to control absorption of solutes; most flowering plants (angiosperms) also have an exodermis just inside the roots which also has a Casparian strip.
	research.umbc.edu /~farabaug/transport.html (598 words)

	Lecture Outline, Plant Nutrition and Transport (Site not responding. Last check: 2007-10-16)
		The water-repellent Casparian strip forces water to move through the cytoplasm of the cells of the endodermis.
		Most flowering plants also have an exodermis, a layer of cells just inside the roots which also has a Casparian strip that functions just like the one next to the root vascular cylinder.
		Energy for the membrane "pumps" located in cells throughout the plant is provided by ATP, generated by either photosynthesis or aerobic respiration.
	www.westminster.edu /staff/athrock/Foundations/Lectures/PlantNutrition.html (807 words)

	cortex -- Britannica Concise Encyclopedia - The online encyclopedia you can trust!
		In roots and in some herbaceous stems but not usually in woody stems, the innermost layer of cortical cells is differentiated into a cell layer called the endodermis.
		The cell walls of the endodermis possess a woody and corky band, called the casparian strip, around all the cell walls except those facing toward the axis and the surface of the root or stem.
		The endodermis with its casparian strips may function in regulating the flow of water between outer tissues and the vascular cylinder at the centre of the root.
	www.britannica.com /ebc/article-9026432 (916 words)

	Lecture: Roots (Site not responding. Last check: 2007-10-16)
		Passage of water through the cell wall or in water films on the cell wall is prevented by making cell wall impermeable to water around its edges, but not on the cell surface facing the cortex.
		The Casparian strip is the initial modification that creates an impermeable morter between each endodermal cell, like morter around a brick
		Page 599 diagram: Casparian strip - primary and secondary cell walls, high suberin (wax) hydrophobic - water cannot get through, forces water to go through the plasma membrane of the cell (think of bricks with waterproof mortar, water can't go around edges of bricks, has to go through middle where the membrane filter is)
	morgan.botany.uga.edu /btny1210/syllabus/lecroots.htm (2114 words)

	Hydroponic Gardening, Roots Exposed!, Indoor Gardening and Hydroponics, Maximum Yield (Site not responding. Last check: 2007-10-16)
		Goods (nutrients and water) arrive at the port, are checked by customs (the Casparian Strip) for things that don’t belong and then the remaining goods are cleared and transported to the manufacturing centers (the leaves) for production.
		The main job of the Casparian Strip is to keep out or prevent the uptake of foreign bodies like fungal spores, bacteria, viruses, etc., as well as other compounds that may be harmful to the plant.
		So our knowledge of the Casparian Strip and the symplastic pathway together with how it prevents uptake of larger-based molecules should invariably lead us to the correct conclusion: that the larger organic based molecules cannot be taken up by the plant until they are broken down into their constituent elements.
	www.maximumyield.com /article248.htm (2041 words)

	At peace with Casparian Strip
		Well, sad news here at Camp Casparian, after a couple of months living in suspended animation, Casparian Strip has lost one of its members.
		But animosity is not the name of the game here in Camp Casparian and if nothing else, Matt has made this last few months possible by jumping into the fray at what seemed like the last minute and provide us with the backbine for many of our new songs soooooooo.......Thanks brother........
		..........and ask nicely, a "Christmas with Casparian Strip" blow up fancy-doll, and edible pants will be winging its way nicely to you, with a loving kiss and a christmas card signed directly by representatives of all the band mates.
	www.casparianstrip.blogspot.com (853 words)

	326 SoilScience/Horticulture/Agronomy (Site not responding. Last check: 2007-10-16)
		Roots in cross section consist of an epidermis (with root hairs), cortex, endodermis (with Casparian strip), and stele (containing xylem and phloem elements.) Plant cells include a cell wall, which is porous to water and nutrients.
		Nutrients can simply diffuse through the free space without actually crossing a biological membrane, as far as the endodermis (which includes the Casparian strip that prevents water and solute flow to the stele.) This extracellular transport is called the apoplastic pathway.
		By contrast, nutrients may cross the plasmalemma (cell membrane) at the endodermis and then be transferred from cell to cell in a radial direction across the cortex through plasmodesmata (cell-to-cell protoplast bridges), so that the nutrients need not be excreted from one cell in order to be adsorbed by the next.
	www.soils.wisc.edu /~barak/soilscience326/mar06_01.htm (614 words)

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