Digital_Repository/Misc/Mass downloads/UTas/2369.html at f408dc826a33e17e0301fe6081775e77ab9692a0

nigel.stanger / Digital_Repository
Find file
Newer
Older
Digital_Repository / Misc / Mass downloads / UTas / 2369.html
Nigel Stanger on 7 May 2013 29 KB - Imported Misc directory.
Raw Blame History
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html>
  <head>
    <title>UTas ePrints - Control of Gibberellin Levels and Gene Expression during De-Etiolation in Pea</title>
    <script type="text/javascript" src="http://eprints.utas.edu.au/javascript/auto.js"><!-- padder --></script>
    <style type="text/css" media="screen">@import url(http://eprints.utas.edu.au/style/auto.css);</style>
    <style type="text/css" media="print">@import url(http://eprints.utas.edu.au/style/print.css);</style>
    <link rel="icon" href="/images/eprints/favicon.ico" type="image/x-icon" />
    <link rel="shortcut icon" href="/images/eprints/favicon.ico" type="image/x-icon" />
    <link rel="Top" href="http://eprints.utas.edu.au/" />
    <link rel="Search" href="http://eprints.utas.edu.au/cgi/search" />
    <meta content="Reid, James B." name="eprints.creators_name" />
<meta content="Botwright, Natasha A." name="eprints.creators_name" />
<meta content="Smith, Jennifer J." name="eprints.creators_name" />
<meta content="O'Neill, Damian P." name="eprints.creators_name" />
<meta content="Kerckhoffs, L. Huub J." name="eprints.creators_name" />
<meta content="James.Reid@utas.edu.au" name="eprints.creators_id" />
<meta content="" name="eprints.creators_id" />
<meta content="" name="eprints.creators_id" />
<meta content="" name="eprints.creators_id" />
<meta content="" name="eprints.creators_id" />
<meta content="article" name="eprints.type" />
<meta content="2007-10-30 21:51:14" name="eprints.datestamp" />
<meta content="2008-01-08 15:30:00" name="eprints.lastmod" />
<meta content="show" name="eprints.metadata_visibility" />
<meta content="Control of Gibberellin Levels and Gene Expression during De-Etiolation in Pea" name="eprints.title" />
<meta content="pub" name="eprints.ispublished" />
<meta content="320000" name="eprints.subjects" />
<meta content="restricted" name="eprints.full_text_status" />
<meta content="Gibberellin Al (GAl) levels drop significantly in wild-type pea (Pisum sativum) plants within 4 h of exposure to red, blue, or far-red light. This response is controlled by phytochrome A (phyA) (and not phyB) and a blue light receptor. GAs levels are increased in response to 4 h of red light, whereas the levels of GA19, GA2o, and GA29 do not vary substantially. Red light appears to control GAl levels by down-regulating the expression of Mendel's LE (PsGA30xl) gene that controls the conversion of GA20 to GAl' and by up-regulating PsGA2ox2, which codes for a GA 2-oxidase that converts GAl to GAs. This occurs within 0.5 to 1 h of exposure to red light. Similar responses occur in blue light. The major GA 20-oxidase gene expressed in shoots, PsGA20oxl, does not show substantial light regulation, but does show up-regulation after 4 h of red light, probably as a result of feedback regulation. Expression of PsGA30xl shows a similar feedback response, whereas PsGA2ox2 shows a feed-forward response. These results add to our understanding of how light reduces shoot elongation during de-etiolation." name="eprints.abstract" />
<meta content="2002" name="eprints.date" />
<meta content="published" name="eprints.date_type" />
<meta content="Plant Physiology" name="eprints.publication" />
<meta content="128" name="eprints.volume" />
<meta content="2" name="eprints.number" />
<meta content="734-741" name="eprints.pagerange" />
<meta content="TRUE" name="eprints.refereed" />
<meta content="0032-0889" name="eprints.issn" />
<meta content="http://proquest.umi.com/pqdweb?did=109212662&amp;sid=1&amp;Fmt=4&amp;clientId=20931&amp;RQT=309&amp;VName=PQD" name="eprints.official_url" />
<meta content="Ausubel FM, Brent R, Kingston RE, Moore DD, Seidman
JG, Smith JA, Struhl K (1994) Current Protocols in Molecular
Biology, Vol 1. Wiley Interscience, New York
Ait-Ali T, Frances S, Weller JL, Reid JB, Kendrick RE,
Kamiya Y (1999) Regulation of gibberellin 20-oxidase
and gibberellin 3{3-hydroxylase transcript accumulation
during de-etiolation of pea seedlings. Plant Physiol 121:
783-791
Ait-Ali T, Swain SM, Reid JB, Sun T, Kamiya Y (1997)The
LS locus of pea encodes the gibberellin biosynthesis enzyme
ent-kaurene synthase A. Plant J 11: 443-454
Behringer FJ, Davies PJ, Reid JB (1992) Phytochrome regulation
of stern growth and indole-3-acetic acid levels in
the Iv and Lv genotypes of Pisum. Photochem Photobiol
56: 677-684
Elliott RC, Ross JJ, Smith JJ, Lester DR, Reid JB (2001)
Feed-forward regulation of gibberellin deactivation in
pea. J Plant Growth Regul 20: 87-94
Garcia-Martinez JL, Lopez-Diaz I, Sanchez-Beltran MJ,
Phillips AL, Ward DA, Gaskin P, Hedden P (1997)
Isolation and transcript analysis of gibberellin 20-oxidase
genes in pea and bean in relation to fruit development.
Plant Mol BioI 33: 1073-1084
Gil J, Garcia-Martinez JL (2000) Light regulation of gibberellin
A(l) content and expression of genes coding for
GA 20-oxidase and GA 3 {3-hydroxylase in etiolated pea
seedlings. Physiol Plant 180: 223-229
Hedden P, Phillips AL (2000) Gibberellin metabolism: new
insights revealed by the genes. Trends Plant Sci 5:
523-530
Hisada A, Hanzawa H, Weller JL, Nagatani A, Reid JB,
Furuya M (2000) Light-induced nuclear translocation of
endogenous pea phytochrome A visualized by immunocytochemical
procedures. Plant Cell 12: 1063-1078
Jackson SD, James PE, Carrera E, Prat S, Thomas B (2000)
Regulation of transcript levels of a potato gibberellin
20-oxidase gene by light and phytochrome B. Plant
Physiol 124: 423-430
Kamiya Y, Garcia-Martinez JL (1999) Regulation of gibberellin
biosynthesis by light. Curr Opin Plant Biol 2:
398-403
Kende H, Lang A (1964) Gibberellins and light inhibition
of stern growth in peas. Plant Physiol 39: 435-440
Lester DR, Ross JJ, Davies PJ, Reid JB (1997) Mendel's
stern length gene (Le) encodes a gibberellin 3{3hydroxylase.
Plant Cell 9: 1435-1443
Lester DR, Ross JJ, Smith JJ, Elliott RC, Reid JB (1999)
Gibberellin 2-oxidation and the SLN gene of Pisum sativum.
Plant J 19: 1-9
Lockhart JA (1956) The effect of light and the gibberellins
on stern elongation in dwarf and normal pea seedlings.
Plant Physiol 31: xii
Martin DN, Proebsting WM, Parks TD, Dougherty WG,
Lange T, Lewis MJ, Gaskin P, Hedden P (1996) Feed-
back regulation of gibberellin biosynthesis and gene expression
in Pisum sativum 1. Planta 200: 159-166
O'Neill DP, Ross H, Reid JB (2000) Changes in gibberellin
Al levels and response during de-etiolation of pea seedlings.
Plant Physiol 124: 805-812
Parks BM, Spalding EP (1999) Sequential and coordinated
action of phytochromes A and B during Arabidopsis stern
growth revealed by kinetic analysis. Proc Nat! Acad Sci
USA 96: 14142-14146
Reed JW, Nagatani A, Chory J, Furuya M (1994) Phytochrome
A and phytochrome B have overlapping but
distinct functions in Arabidopsis development. Plant
Physiol 104: 1139-1149
Reid JB (1983) Internode length in Pisum. Do the internode
length genes effect growth in dark-grown plants. Plant
Physiol 72: 759-763
Reid JB (1988) Internode length in Pisum: comparison of
genotypes in the light and dark. Physiol Plant 74: 83-88
Reid JB, Ross H (1988) A new gene, lv, conferring an
enhanced response to gibberellin AI. Physiol Plant 72:
595-604
Reid JB, Ross H, Swain SM (1992) Internode length in
Pisum: a new, slender mutant with elevated levels of CI 9
gibberellins. Planta 188: 462-467
Ross H, MacKenzie-Hose AK, Davies PJ, Lester DR,
Twitchin B, Reid JB (1999) Further evidence for feedback
regulation of gibberellin biosynthesis in pea.
Physiol Plant 105: 532-538
Ross H, Reid JB, Swain SM, Hasan 0, Poole AT, Hedden
P, Willis CL (1995) Genetic regulation of Gibberellin
deactivation in Pisum. Plant J 7: 513-523
Ross H, Willis CL, Gaskin P, Reid JB (1992) Shoot elongation
in Lnthyrus odoratus 1.: gibberellin levels in light
Gibberellin Levels and Gene Expression during De-Etiolation
and dark-grown tall and dwarf seedlings. Planta 187:
10-13
Talon M, Zeevaart JAD, Gage DA (1991) Identification of
gibberellins in spinach and effects of light and darkness
on their levels. Plant Physiol 97: 1521-1526
Toyomasu T, Kawaide H, Mitsuhashi W, Inoue Y, Kamiya
Y (1998) Phytochrome regulates gibberellin biosynthesis
during germination of photoblastic lettuce seeds.
Plant Physiol 118: 1517-1523
Weller JL, Beauchamp N, Kerckhoffs LHJ, Platten JD, Reid JB (2001) Interaction of phytochromes A and B in the control of de-etiolation and flowering in pea. Plant J
26: 1-14
Weller JL, Murfet IC, Reid JB (1997) Pea mutants with
reduced sensitivity to far-red light define an important
role for phytochrome A in day-length detection. Plant
Physiol 114: 1225-1236
Weller JL, Nagatani A, Kendrick RE, Murfet IC, Reid JB
(1995) New lu mutants of pea are deficient in phytochrome
B. Plant Physiol 108: 525-532
Weller JL, Ross H, Reid JB' (1994) Gibberellins and phytochrome
regulation of stem elongation in pea. Planta 192:
489-496
Wu K, GageAD,ZeevaartJAD (1996)Molecularcloning and
photoperiod-regulated expression of gibberellin20-oxidase
from long-day plant spinach. Plant Physiol110: 547-554
Xu X, Van Lammeren AM, Vermeer E, Vreugdenhil 0
(1998) The role of gibberellin, abscisic acid, and sucrose
in the regulation of potato tuber formation in vitro. Plant
Physiol 117: 575-584
Yamaguchi S, Smith MW, Brown RGS, Kamiya Y, Sun TP
(1998) Phytochrome regulation and differential expression
of gibberellin 3f3-hydroxylase genes in germinating
Arabidopsis seeds. Plant Cell 10: 2115-2126
" name="eprints.referencetext" />
<meta content="Reid, James B. and Botwright, Natasha A. and Smith, Jennifer J. and O'Neill, Damian P. and Kerckhoffs, L. Huub J. (2002) Control of Gibberellin Levels and Gene Expression during De-Etiolation in Pea. Plant Physiology, 128 (2). pp. 734-741. ISSN 0032-0889" name="eprints.citation" />
<meta content="http://eprints.utas.edu.au/2369/1/Control_of_Gibberellin.pdf" name="eprints.document_url" />
<link rel="schema.DC" href="http://purl.org/DC/elements/1.0/" />
<meta content="Control of Gibberellin Levels and Gene Expression during De-Etiolation in Pea" name="DC.title" />
<meta content="Reid, James B." name="DC.creator" />
<meta content="Botwright, Natasha A." name="DC.creator" />
<meta content="Smith, Jennifer J." name="DC.creator" />
<meta content="O'Neill, Damian P." name="DC.creator" />
<meta content="Kerckhoffs, L. Huub J." name="DC.creator" />
<meta content="320000 Medical and Health Sciences" name="DC.subject" />
<meta content="Gibberellin Al (GAl) levels drop significantly in wild-type pea (Pisum sativum) plants within 4 h of exposure to red, blue, or far-red light. This response is controlled by phytochrome A (phyA) (and not phyB) and a blue light receptor. GAs levels are increased in response to 4 h of red light, whereas the levels of GA19, GA2o, and GA29 do not vary substantially. Red light appears to control GAl levels by down-regulating the expression of Mendel's LE (PsGA30xl) gene that controls the conversion of GA20 to GAl' and by up-regulating PsGA2ox2, which codes for a GA 2-oxidase that converts GAl to GAs. This occurs within 0.5 to 1 h of exposure to red light. Similar responses occur in blue light. The major GA 20-oxidase gene expressed in shoots, PsGA20oxl, does not show substantial light regulation, but does show up-regulation after 4 h of red light, probably as a result of feedback regulation. Expression of PsGA30xl shows a similar feedback response, whereas PsGA2ox2 shows a feed-forward response. These results add to our understanding of how light reduces shoot elongation during de-etiolation." name="DC.description" />
<meta content="2002" name="DC.date" />
<meta content="Article" name="DC.type" />
<meta content="PeerReviewed" name="DC.type" />
<meta content="application/pdf" name="DC.format" />
<meta content="http://eprints.utas.edu.au/2369/1/Control_of_Gibberellin.pdf" name="DC.identifier" />
<meta content="http://proquest.umi.com/pqdweb?did=109212662&amp;sid=1&amp;Fmt=4&amp;clientId=20931&amp;RQT=309&amp;VName=PQD" name="DC.relation" />
<meta content="Reid, James B. and Botwright, Natasha A. and Smith, Jennifer J. and O'Neill, Damian P. and Kerckhoffs, L. Huub J. (2002) Control of Gibberellin Levels and Gene Expression during De-Etiolation in Pea. Plant Physiology, 128 (2). pp. 734-741. ISSN 0032-0889" name="DC.identifier" />
<meta content="http://eprints.utas.edu.au/2369/" name="DC.relation" />
<link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/2369/BibTeX/epprod-eprint-2369.bib" title="BibTeX" type="text/plain" />
<link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/2369/ContextObject/epprod-eprint-2369.xml" title="OpenURL ContextObject" type="text/xml" />
<link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/2369/ContextObject::Dissertation/epprod-eprint-2369.xml" title="OpenURL Dissertation" type="text/xml" />
<link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/2369/ContextObject::Journal/epprod-eprint-2369.xml" title="OpenURL Journal" type="text/xml" />
<link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/2369/DC/epprod-eprint-2369.txt" title="Dublin Core" type="text/plain" />
<link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/2369/DIDL/epprod-eprint-2369.xml" title="DIDL" type="text/xml" />
<link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/2369/EndNote/epprod-eprint-2369.enw" title="EndNote" type="text/plain" />
<link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/2369/HTML/epprod-eprint-2369.html" title="HTML Citation" type="text/html; charset=utf-8" />
<link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/2369/METS/epprod-eprint-2369.xml" title="METS" type="text/xml" />
<link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/2369/MODS/epprod-eprint-2369.xml" title="MODS" type="text/xml" />
<link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/2369/RIS/epprod-eprint-2369.ris" title="Reference Manager" type="text/plain" />
<link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/2369/Refer/epprod-eprint-2369.refer" title="Refer" type="text/plain" />
<link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/2369/Simple/epprod-eprint-2369text" title="Simple Metadata" type="text/plain" />
<link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/2369/Text/epprod-eprint-2369.txt" title="ASCII Citation" type="text/plain; charset=utf-8" />
<link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/2369/XML/epprod-eprint-2369.xml" title="EP3 XML" type="text/xml" />
 
  </head>
  <body bgcolor="#ffffff" text="#000000" onLoad="loadRoutine(); MM_preloadImages('images/eprints/ePrints_banner_r5_c5_f2.gif','images/eprints/ePrints_banner_r5_c7_f2.gif','images/eprints/ePrints_banner_r5_c8_f2.gif','images/eprints/ePrints_banner_r5_c9_f2.gif','images/eprints/ePrints_banner_r5_c10_f2.gif','images/eprints/ePrints_banner_r5_c11_f2.gif','images/eprints/ePrints_banner_r6_c4_f2.gif')">
    
    <div class="ep_noprint"><noscript><style type="text/css">@import url(http://eprints.utas.edu.au/style/nojs.css);</style></noscript></div>
 
 
 
 
<table width="795" border="0" cellspacing="0" cellpadding="0">
  <tr>
    <td><script language="JavaScript1.2">mmLoadMenus();</script>
      <table border="0" cellpadding="0" cellspacing="0" width="795">
        <!-- fwtable fwsrc="eprints_banner_final2.png" fwbase="ePrints_banner.gif" fwstyle="Dreamweaver" fwdocid = "1249563342" fwnested="0" -->
        <tr>
          <td><img src="/images/eprints/spacer.gif" width="32" height="1" border="0" alt="" /></td>
          <td><img src="/images/eprints/spacer.gif" width="104" height="1" border="0" alt="" /></td>
          <td><img src="/images/eprints/spacer.gif" width="44" height="1" border="0" alt="" /></td>
          <td><img src="/images/eprints/spacer.gif" width="105" height="1" border="0" alt="" /></td>
          <td><img src="/images/eprints/spacer.gif" width="41" height="1" border="0" alt="" /></td>
          <td><img src="/images/eprints/spacer.gif" width="16" height="1" border="0" alt="" /></td>
          <td><img src="/images/eprints/spacer.gif" width="68" height="1" border="0" alt="" /></td>
          <td><img src="/images/eprints/spacer.gif" width="68" height="1" border="0" alt="" /></td>
          <td><img src="/images/eprints/spacer.gif" width="68" height="1" border="0" alt="" /></td>
          <td><img src="/images/eprints/spacer.gif" width="82" height="1" border="0" alt="" /></td>
          <td><img src="/images/eprints/spacer.gif" width="69" height="1" border="0" alt="" /></td>
          <td><img src="/images/eprints/spacer.gif" width="98" height="1" border="0" alt="" /></td>
          <td><img src="/images/eprints/spacer.gif" width="1" height="1" border="0" alt="" /></td>
        </tr>
        <tr>
          <td colspan="12"><img name="ePrints_banner_r1_c1" src="/images/eprints/ePrints_banner_r1_c1.gif" width="795" height="10" border="0" alt="" /></td>
          <td><img src="/images/eprints/spacer.gif" width="1" height="10" border="0" alt="" /></td>
        </tr>
        <tr>
          <td rowspan="6"><img name="ePrints_banner_r2_c1" src="/images/eprints/ePrints_banner_r2_c1.gif" width="32" height="118" border="0" alt="" /></td>
          <td rowspan="5"><a href="http://www.utas.edu.au/"><img name="ePrints_banner_r2_c2" src="/images/eprints/ePrints_banner_r2_c2.gif" width="104" height="103" border="0" alt="" /></a></td>
          <td colspan="10"><img name="ePrints_banner_r2_c3" src="/images/eprints/ePrints_banner_r2_c3.gif" width="659" height="41" border="0" alt="" /></td>
          <td><img src="/images/eprints/spacer.gif" width="1" height="41" border="0" alt="" /></td>
        </tr>
        <tr>
          <td colspan="3"><a href="http://eprints.utas.edu.au/"><img name="ePrints_banner_r3_c3" src="/images/eprints/ePrints_banner_r3_c3.gif" width="190" height="31" border="0" alt="" /></a></td>
          <td rowspan="2" colspan="7"><img name="ePrints_banner_r3_c6" src="/images/eprints/ePrints_banner_r3_c6.gif" width="469" height="37" border="0" alt="" /></td>
          <td><img src="/images/eprints/spacer.gif" width="1" height="31" border="0" alt="" /></td>
        </tr>
        <tr>
          <td colspan="3"><img name="ePrints_banner_r4_c3" src="/images/eprints/ePrints_banner_r4_c3.gif" width="190" height="6" border="0" alt="" /></td>
          <td><img src="/images/eprints/spacer.gif" width="1" height="6" border="0" alt="" /></td>
        </tr>
        <tr>
          <td colspan="2"><img name="ePrints_banner_r5_c3" src="/images/eprints/ePrints_banner_r5_c3.gif" width="149" height="1" border="0" alt="" /></td>
          <td rowspan="2" colspan="2"><a href="/information.html" onMouseOut="MM_swapImgRestore();MM_startTimeout()" onMouseOver="MM_showMenu(window.mm_menu_0821132634_0,0,25,null,'ePrints_banner_r5_c5');MM_swapImage('ePrints_banner_r5_c5','','/images/eprints/ePrints_banner_r5_c5_f2.gif',1);"><img name="ePrints_banner_r5_c5" src="/images/eprints/ePrints_banner_r5_c5.gif" width="57" height="25" border="0" alt="About" /></a></td>
          <td rowspan="2"><a href="/view/" onMouseOut="MM_swapImgRestore();MM_startTimeout()" onMouseOver="MM_showMenu(window.mm_menu_0821133021_1,0,25,null,'ePrints_banner_r5_c7');MM_swapImage('ePrints_banner_r5_c7','','/images/eprints/ePrints_banner_r5_c7_f2.gif',1);"><img name="ePrints_banner_r5_c7" src="/images/eprints/ePrints_banner_r5_c7.gif" width="68" height="25" border="0" alt="Browse" /></a></td>
          <td rowspan="2"><a href="/perl/search/simple" onMouseOut="MM_swapImgRestore();MM_startTimeout()" onMouseOver="MM_showMenu(window.mm_menu_0821133201_2,0,25,null,'ePrints_banner_r5_c8');MM_swapImage('ePrints_banner_r5_c8','','/images/eprints/ePrints_banner_r5_c8_f2.gif',1);"><img name="ePrints_banner_r5_c8" src="/images/eprints/ePrints_banner_r5_c8.gif" width="68" height="25" border="0" alt="Search" /></a></td>
          <td rowspan="2"><a href="/perl/register" onMouseOut="MM_swapImgRestore();MM_startTimeout();" onMouseOver="MM_showMenu(window.mm_menu_1018171924_3,0,25,null,'ePrints_banner_r5_c9');MM_swapImage('ePrints_banner_r5_c9','','/images/eprints/ePrints_banner_r5_c9_f2.gif',1);"><img name="ePrints_banner_r5_c9" src="/images/eprints/ePrints_banner_r5_c9.gif" width="68" height="25" border="0" alt="register" /></a></td>
          <td rowspan="2"><a href="/perl/users/home" onMouseOut="MM_swapImgRestore();MM_startTimeout()" onMouseOver="MM_showMenu(window.mm_menu_0821133422_4,0,25,null,'ePrints_banner_r5_c10');MM_swapImage('ePrints_banner_r5_c10','','/images/eprints/ePrints_banner_r5_c10_f2.gif',1);"><img name="ePrints_banner_r5_c10" src="/images/eprints/ePrints_banner_r5_c10.gif" width="82" height="25" border="0" alt="user area" /></a></td>
          <td rowspan="2"><a href="/help/" onMouseOut="MM_swapImgRestore();MM_startTimeout()" onMouseOver="MM_showMenu(window.mm_menu_0821133514_5,0,25,null,'ePrints_banner_r5_c11');MM_swapImage('ePrints_banner_r5_c11','','/images/eprints/ePrints_banner_r5_c11_f2.gif',1);"><img name="ePrints_banner_r5_c11" src="/images/eprints/ePrints_banner_r5_c11.gif" width="69" height="25" border="0" alt="Help" /></a></td>
          <td rowspan="3" colspan="4"><img name="ePrints_banner_r5_c12" src="/images/eprints/ePrints_banner_r5_c12.gif" width="98" height="40" border="0" alt="" /></td>
          <td><img src="/images/eprints/spacer.gif" width="1" height="1" border="0" alt="" /></td>
        </tr>
        <tr>
          <td rowspan="2"><img name="ePrints_banner_r6_c3" src="/images/eprints/ePrints_banner_r6_c3.gif" width="44" height="39" border="0" alt="ePrints home" /></td>
          <td><a href="/" onMouseOut="MM_swapImgRestore()" onMouseOver="MM_swapImage('ePrints_banner_r6_c4','','/images/eprints/ePrints_banner_r6_c4_f2.gif',1);"><img name="ePrints_banner_r6_c4" src="/images/eprints/ePrints_banner_r6_c4.gif" width="105" height="24" border="0" alt="ePrints home" /></a></td>
          <td><img src="/images/eprints/spacer.gif" width="1" height="24" border="0" alt="" /></td>
        </tr>
        <tr>
          <td><img name="ePrints_banner_r7_c2" src="/images/eprints/ePrints_banner_r7_c2.gif" width="104" height="15" border="0" alt="" /></td>
          <td colspan="8"><img name="ePrints_banner_r7_c4" src="/images/eprints/ePrints_banner_r7_c4.gif" width="517" height="15" border="0" alt="" /></td>
          <td><img src="/images/eprints/spacer.gif" width="1" height="15" border="0" alt="" /></td>
        </tr>
      </table></td>
  </tr>
    <tr><td><table width="100%" style="font-size: 90%; border: solid 1px #ccc; padding: 3px"><tr>
      <td align="left"><a href="http://eprints.utas.edu.au/cgi/users/home">Login</a> | <a href="http://eprints.utas.edu.au/cgi/register">Create Account</a></td>
      <td align="right" style="white-space: nowrap">
        <form method="get" accept-charset="utf-8" action="http://eprints.utas.edu.au/cgi/search" style="display:inline">
          <input class="ep_tm_searchbarbox" size="20" type="text" name="q" />
          <input class="ep_tm_searchbarbutton" value="Search" type="submit" name="_action_search" />
          <input type="hidden" name="_order" value="bytitle" />
          <input type="hidden" name="basic_srchtype" value="ALL" />
          <input type="hidden" name="_satisfyall" value="ALL" />
        </form>
      </td>
    </tr></table></td></tr>
  <tr>
    <td class="toplinks"><!-- InstanceBeginEditable name="content" -->
 
 
<div align="center">
  
  <table width="720" class="ep_tm_main"><tr><td align="left">
    <h1 class="ep_tm_pagetitle">Control of Gibberellin Levels and Gene Expression during De-Etiolation in Pea</h1>
    <p style="margin-bottom: 1em" class="not_ep_block"><span class="person_name">Reid, James B.</span> and <span class="person_name">Botwright, Natasha A.</span> and <span class="person_name">Smith, Jennifer J.</span> and <span class="person_name">O'Neill, Damian P.</span> and <span class="person_name">Kerckhoffs, L. Huub J.</span> (2002) <xhtml:em>Control of Gibberellin Levels and Gene Expression during De-Etiolation in Pea.</xhtml:em> Plant Physiology, 128 (2). pp. 734-741. ISSN 0032-0889</p><p style="margin-bottom: 1em" class="not_ep_block"></p><table style="margin-bottom: 1em" class="not_ep_block"><tr><td valign="top" style="text-align:center"><a href="http://eprints.utas.edu.au/2369/1/Control_of_Gibberellin.pdf"><img alt="[img]" src="http://eprints.utas.edu.au/style/images/fileicons/application_pdf.png" class="ep_doc_icon" border="0" /></a></td><td valign="top"><a href="http://eprints.utas.edu.au/2369/1/Control_of_Gibberellin.pdf"><span class="ep_document_citation">PDF</span></a> - Full text restricted - Requires a PDF viewer<br />2840Kb</td><td><form method="get" accept-charset="utf-8" action="http://eprints.utas.edu.au/cgi/request_doc"><input accept-charset="utf-8" value="3053" name="docid" type="hidden" /><div class=""><input value="Request a copy" name="_action_null" class="ep_form_action_button" onclick="return EPJS_button_pushed( '_action_null' )" type="submit" /> </div></form></td></tr></table><p style="margin-bottom: 1em" class="not_ep_block">Official URL: <a href="http://proquest.umi.com/pqdweb?did=109212662&amp;sid=1&amp;Fmt=4&amp;clientId=20931&amp;RQT=309&amp;VName=PQD">http://proquest.umi.com/pqdweb?did=109212662&amp;sid=1&amp;Fmt=4&amp;clientId=20931&amp;RQT=309&amp;VName=PQD</a></p><div class="not_ep_block"><h2>Abstract</h2><p style="padding-bottom: 16px; text-align: left; margin: 1em auto 0em auto">Gibberellin Al (GAl) levels drop significantly in wild-type pea (Pisum sativum) plants within 4 h of exposure to red, blue, or far-red light. This response is controlled by phytochrome A (phyA) (and not phyB) and a blue light receptor. GAs levels are increased in response to 4 h of red light, whereas the levels of GA19, GA2o, and GA29 do not vary substantially. Red light appears to control GAl levels by down-regulating the expression of Mendel's LE (PsGA30xl) gene that controls the conversion of GA20 to GAl' and by up-regulating PsGA2ox2, which codes for a GA 2-oxidase that converts GAl to GAs. This occurs within 0.5 to 1 h of exposure to red light. Similar responses occur in blue light. The major GA 20-oxidase gene expressed in shoots, PsGA20oxl, does not show substantial light regulation, but does show up-regulation after 4 h of red light, probably as a result of feedback regulation. Expression of PsGA30xl shows a similar feedback response, whereas PsGA2ox2 shows a feed-forward response. These results add to our understanding of how light reduces shoot elongation during de-etiolation.</p></div><table style="margin-bottom: 1em" cellpadding="3" class="not_ep_block" border="0"><tr><th valign="top" class="ep_row">Item Type:</th><td valign="top" class="ep_row">Article</td></tr><tr><th valign="top" class="ep_row">Subjects:</th><td valign="top" class="ep_row"><a href="http://eprints.utas.edu.au/view/subjects/320000.html">320000 Medical and Health Sciences</a></td></tr><tr><th valign="top" class="ep_row">ID Code:</th><td valign="top" class="ep_row">2369</td></tr><tr><th valign="top" class="ep_row">Deposited By:</th><td valign="top" class="ep_row"><span class="ep_name_citation"><span class="person_name">Scholarly Publications Librarian</span></span></td></tr><tr><th valign="top" class="ep_row">Deposited On:</th><td valign="top" class="ep_row">31 Oct 2007 08:51</td></tr><tr><th valign="top" class="ep_row">Last Modified:</th><td valign="top" class="ep_row">09 Jan 2008 02:30</td></tr><tr><th valign="top" class="ep_row">ePrint Statistics:</th><td valign="top" class="ep_row"><a target="ePrintStats" href="/es/index.php?action=show_detail_eprint;id=2369;">View statistics for this ePrint</a></td></tr></table><p align="right">Repository Staff Only: <a href="http://eprints.utas.edu.au/cgi/users/home?screen=EPrint::View&amp;eprintid=2369">item control page</a></p>
  </td></tr></table>
</div>
 
 
 
    <!-- InstanceEndEditable --></td>
  </tr>
  <tr>
    <td><!-- #BeginLibraryItem "/Library/footer_eprints.lbi" -->
    <table width="795" border="0" align="left" cellpadding="0" class="footer">
  <tr valign="top">
<td colspan="2"><div align="center"><a href="http://www.utas.edu.au">UTAS home</a> | <a href="http://www.utas.edu.au/library/">Library home</a> | <a href="/">ePrints home</a> | <a href="/contact.html">contact</a> | <a href="/information.html">about</a> | <a href="/view/">browse</a> | <a href="/perl/search/simple">search</a> | <a href="/perl/register">register</a> | <a href="/perl/users/home">user area</a> | <a href="/help/">help</a></div><br /></td>
</tr>
<tr><td colspan="2"><p><img src="/images/eprints/footerline.gif" width="100%" height="4" /></p></td></tr>
      <tr valign="top">
        <td width="68%" class="footer">Authorised by the University Librarian<br />
© University of Tasmania ABN 30 764 374 782<br />
      <a href="http://www.utas.edu.au/cricos/">CRICOS Provider Code 00586B</a> | <a href="http://www.utas.edu.au/copyright/copyright_disclaimers.html">Copyright &amp; Disclaimers</a> | <a href="http://www.utas.edu.au/accessibility/index.html">Accessibility</a> | <a href="http://eprints.utas.edu.au/feedback/">Site Feedback</a>  </td>
        <td width="32%"><div align="right">
            <p align="right" class="NoPrint"><a href="http://www.utas.edu.au/"><img src="http://www.utas.edu.au/shared/logos/unioftasstrip.gif" alt="University of Tasmania Home Page" width="260" height="16" border="0" align="right" /></a></p>
            <p align="right" class="NoPrint"><a href="http://www.utas.edu.au/"><br />
            </a></p>
        </div></td>
      </tr>
      <tr valign="top">
        <td><p>  </p></td>
        <td><div align="right"><span class="NoPrint"><a href="http://www.eprints.org/software/"><img src="/images/eprintslogo.gif" alt="ePrints logo" width="77" height="29" border="0" align="bottom" /></a></span></div></td>
      </tr>
    </table>
    <!-- #EndLibraryItem -->
    <div align="center"></div></td>
  </tr>
</table>
 
  </body>
</html>