Change in XET activities, cell wall extensibility and hypocotyl elongation of soybean seedlings at low water potential
In dark-grown soybeab (Glycine max [L.] Merr.) seedlings, exposing the roots to water-deficient vermiculite (ψw = -0.36 MPa) inhibited hypocotyl (stem) elongation. The inhibition was associated with decreased extensibility of the cell walls in the elongation zone. A detailed spatial analysis showed...
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| creator | Wu, Y Jeong, B.R Fry, S.C Boyer, J.S |
| description | In dark-grown soybeab (Glycine max [L.] Merr.) seedlings, exposing the roots to water-deficient vermiculite (ψw = -0.36 MPa) inhibited hypocotyl (stem) elongation. The inhibition was associated with decreased extensibility of the cell walls in the elongation zone. A detailed spatial analysis showed xyloglucan endotransglucosylase (XET; EC 2.4.1.207) activity on the basis of unit cell wall dry weight was decreased in the elongation region after seedlings were transplanted to low ψw. The decrease in XET activity was at least partially due to an accumulation of cell wall mass. Since cell number was only slightly altered, wall mass had increased per cell and probably led to increased wall thickness and decreased cell wall extensibility. Alternatively, an increase in cell wall mass may represent a mechanism for regulating enzyme activity in cell walls, XET in this case, and therefore cell wall extensibility. Hypocotyl elongation was partially recovered after seedlings were grown in low-ψw vermiculate for about 80 h. The partial recovery of hypocotyl elongation was associated with a partial recovery of cell wall extensibility and an enhancement of XET activity in the hypocotyl elongation zone. Our results indicate XTH proteins may play an important role in regulating cell wall extensibility and thus cell elongation in soybean hypocotyls. Our results also showed an imperfect correlation of spatial elongation and XET activity along the hypocotyls. Other potential functions of XTH and their regulation in soybean hypocotyl growth are discussed. |
| doi_str_mv | 10.1007/s00425-004-1369-4 |
| format | Article |
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The inhibition was associated with decreased extensibility of the cell walls in the elongation zone. A detailed spatial analysis showed xyloglucan endotransglucosylase (XET; EC 2.4.1.207) activity on the basis of unit cell wall dry weight was decreased in the elongation region after seedlings were transplanted to low ψw. The decrease in XET activity was at least partially due to an accumulation of cell wall mass. Since cell number was only slightly altered, wall mass had increased per cell and probably led to increased wall thickness and decreased cell wall extensibility. Alternatively, an increase in cell wall mass may represent a mechanism for regulating enzyme activity in cell walls, XET in this case, and therefore cell wall extensibility. Hypocotyl elongation was partially recovered after seedlings were grown in low-ψw vermiculate for about 80 h. The partial recovery of hypocotyl elongation was associated with a partial recovery of cell wall extensibility and an enhancement of XET activity in the hypocotyl elongation zone. Our results indicate XTH proteins may play an important role in regulating cell wall extensibility and thus cell elongation in soybean hypocotyls. Our results also showed an imperfect correlation of spatial elongation and XET activity along the hypocotyls. Other potential functions of XTH and their regulation in soybean hypocotyl growth are discussed.</description><identifier>ISSN: 0032-0935</identifier><identifier>EISSN: 1432-2048</identifier><identifier>DOI: 10.1007/s00425-004-1369-4</identifier><identifier>PMID: 15375660</identifier><identifier>CODEN: PLANAB</identifier><language>eng</language><publisher>Berlin: Springer-Verlag</publisher><subject>Agronomy. Soil science and plant productions ; Bacteria ; Biological and medical sciences ; Cell growth ; Cell Wall - enzymology ; Cell Wall - ultrastructure ; cell wall extensibility ; Cell walls ; Corn ; Darkness ; Dehydration ; Economic plant physiology ; Enzymatic activity ; enzyme activity ; Fundamental and applied biological sciences. Psychology ; Glycine max ; Glycine max - enzymology ; Glycine max - physiology ; glycosyltransferases ; Glycosyltransferases - metabolism ; Hypocotyl - enzymology ; Hypocotyl - physiology ; Hypocotyls ; Kinetics ; plant biochemistry ; Plant cells ; plant physiology ; Plant roots ; Plants ; Seedlings ; Seedlings - enzymology ; Seedlings - physiology ; Soybeans ; Spatial analysis ; Turgor pressure ; Water potential ; Water relations, transpiration, stomata ; xyloglucan endotransglucosylase ; xyloglucans</subject><ispartof>Planta, 2005-02, Vol.220 (4), p.593-601</ispartof><rights>Springer-Verlag Berlin Heidelberg 2005</rights><rights>2005 INIST-CNRS</rights><rights>Springer-Verlag 2005</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c402t-418797a9315171a06b2780aff070c5c5ac71b7957622f4fcbb913511fc8ef3973</citedby><cites>FETCH-LOGICAL-c402t-418797a9315171a06b2780aff070c5c5ac71b7957622f4fcbb913511fc8ef3973</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.jstor.org/stable/pdf/23388763$$EPDF$$P50$$Gjstor$$H</linktopdf><linktohtml>$$Uhttps://www.jstor.org/stable/23388763$$EHTML$$P50$$Gjstor$$H</linktohtml><link.rule.ids>314,780,784,803,27924,27925,58017,58250</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=16514653$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/15375660$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Wu, Y</creatorcontrib><creatorcontrib>Jeong, B.R</creatorcontrib><creatorcontrib>Fry, S.C</creatorcontrib><creatorcontrib>Boyer, J.S</creatorcontrib><title>Change in XET activities, cell wall extensibility and hypocotyl elongation of soybean seedlings at low water potential</title><title>Planta</title><addtitle>Planta</addtitle><description>In dark-grown soybeab (Glycine max [L.] Merr.) seedlings, exposing the roots to water-deficient vermiculite (ψw = -0.36 MPa) inhibited hypocotyl (stem) elongation. The inhibition was associated with decreased extensibility of the cell walls in the elongation zone. A detailed spatial analysis showed xyloglucan endotransglucosylase (XET; EC 2.4.1.207) activity on the basis of unit cell wall dry weight was decreased in the elongation region after seedlings were transplanted to low ψw. The decrease in XET activity was at least partially due to an accumulation of cell wall mass. Since cell number was only slightly altered, wall mass had increased per cell and probably led to increased wall thickness and decreased cell wall extensibility. Alternatively, an increase in cell wall mass may represent a mechanism for regulating enzyme activity in cell walls, XET in this case, and therefore cell wall extensibility. Hypocotyl elongation was partially recovered after seedlings were grown in low-ψw vermiculate for about 80 h. The partial recovery of hypocotyl elongation was associated with a partial recovery of cell wall extensibility and an enhancement of XET activity in the hypocotyl elongation zone. Our results indicate XTH proteins may play an important role in regulating cell wall extensibility and thus cell elongation in soybean hypocotyls. Our results also showed an imperfect correlation of spatial elongation and XET activity along the hypocotyls. Other potential functions of XTH and their regulation in soybean hypocotyl growth are discussed.</description><subject>Agronomy. Soil science and plant productions</subject><subject>Bacteria</subject><subject>Biological and medical sciences</subject><subject>Cell growth</subject><subject>Cell Wall - enzymology</subject><subject>Cell Wall - ultrastructure</subject><subject>cell wall extensibility</subject><subject>Cell walls</subject><subject>Corn</subject><subject>Darkness</subject><subject>Dehydration</subject><subject>Economic plant physiology</subject><subject>Enzymatic activity</subject><subject>enzyme activity</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Glycine max</subject><subject>Glycine max - enzymology</subject><subject>Glycine max - physiology</subject><subject>glycosyltransferases</subject><subject>Glycosyltransferases - metabolism</subject><subject>Hypocotyl - enzymology</subject><subject>Hypocotyl - physiology</subject><subject>Hypocotyls</subject><subject>Kinetics</subject><subject>plant biochemistry</subject><subject>Plant cells</subject><subject>plant physiology</subject><subject>Plant roots</subject><subject>Plants</subject><subject>Seedlings</subject><subject>Seedlings - enzymology</subject><subject>Seedlings - physiology</subject><subject>Soybeans</subject><subject>Spatial analysis</subject><subject>Turgor pressure</subject><subject>Water potential</subject><subject>Water relations, transpiration, stomata</subject><subject>xyloglucan endotransglucosylase</subject><subject>xyloglucans</subject><issn>0032-0935</issn><issn>1432-2048</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2005</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><recordid>eNpdkV9rFDEUxYModq1-AB_UINQnR2_-TWYeZalVKPhgC76FTDbZZplN1iTbOt_eDLNY8OUkcH73kJuD0GsCnwiA_JwBOBVN1Yawtm_4E7QinNGGAu-eohVAvUPPxBl6kfMOoJpSPkdnRDAp2hZW6H59p8PWYh_wr8sbrE3x9754mz9iY8cRP-gq9k-xIfvBj75MWIcNvpsO0cQyVW-MYauLjwFHh3OcBqsDztZuRh-2GeuCx_hQc4pN-BBrUPF6fImeOT1m--p0nqPbr5c362_N9Y-r7-sv143hQEvDSSd7qXtGBJFEQztQ2YF2DiQYYYQ2kgyyF7Kl1HFnhqEnTBDiTGcd6yU7Rx-W3EOKv482F7X3eV5MBxuPWbWSUyAdVPD9f-AuHlOob1Mdha4lHOY0skAmxZyTdeqQ_F6nSRFQcyNqaURVVXMjiteZt6fg47C3m8eJUwUVuDgBOhs9uqSD8fmRawXhrWCVe7Nwu1xi-udTxrpOtrP_bvGdjkpvU824_VmXY0Cgfo_s2V-Sl6YP</recordid><startdate>20050201</startdate><enddate>20050201</enddate><creator>Wu, Y</creator><creator>Jeong, B.R</creator><creator>Fry, S.C</creator><creator>Boyer, J.S</creator><general>Springer-Verlag</general><general>Springer</general><general>Springer Nature B.V</general><scope>FBQ</scope><scope>IQODW</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7QP</scope><scope>7QR</scope><scope>7TM</scope><scope>7X2</scope><scope>7X7</scope><scope>7XB</scope><scope>88A</scope><scope>88E</scope><scope>8AO</scope><scope>8FD</scope><scope>8FE</scope><scope>8FH</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>ATCPS</scope><scope>AZQEC</scope><scope>BBNVY</scope><scope>BENPR</scope><scope>BHPHI</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>FR3</scope><scope>FYUFA</scope><scope>GHDGH</scope><scope>GNUQQ</scope><scope>HCIFZ</scope><scope>K9.</scope><scope>LK8</scope><scope>M0K</scope><scope>M0S</scope><scope>M1P</scope><scope>M7P</scope><scope>P64</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>RC3</scope><scope>7X8</scope></search><sort><creationdate>20050201</creationdate><title>Change in XET activities, cell wall extensibility and hypocotyl elongation of soybean seedlings at low water potential</title><author>Wu, Y ; Jeong, B.R ; Fry, S.C ; Boyer, J.S</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c402t-418797a9315171a06b2780aff070c5c5ac71b7957622f4fcbb913511fc8ef3973</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2005</creationdate><topic>Agronomy. Soil science and plant productions</topic><topic>Bacteria</topic><topic>Biological and medical sciences</topic><topic>Cell growth</topic><topic>Cell Wall - enzymology</topic><topic>Cell Wall - ultrastructure</topic><topic>cell wall extensibility</topic><topic>Cell walls</topic><topic>Corn</topic><topic>Darkness</topic><topic>Dehydration</topic><topic>Economic plant physiology</topic><topic>Enzymatic activity</topic><topic>enzyme activity</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>Glycine max</topic><topic>Glycine max - enzymology</topic><topic>Glycine max - physiology</topic><topic>glycosyltransferases</topic><topic>Glycosyltransferases - metabolism</topic><topic>Hypocotyl - enzymology</topic><topic>Hypocotyl - physiology</topic><topic>Hypocotyls</topic><topic>Kinetics</topic><topic>plant biochemistry</topic><topic>Plant cells</topic><topic>plant physiology</topic><topic>Plant roots</topic><topic>Plants</topic><topic>Seedlings</topic><topic>Seedlings - enzymology</topic><topic>Seedlings - physiology</topic><topic>Soybeans</topic><topic>Spatial analysis</topic><topic>Turgor pressure</topic><topic>Water potential</topic><topic>Water relations, transpiration, stomata</topic><topic>xyloglucan endotransglucosylase</topic><topic>xyloglucans</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Wu, Y</creatorcontrib><creatorcontrib>Jeong, B.R</creatorcontrib><creatorcontrib>Fry, S.C</creatorcontrib><creatorcontrib>Boyer, J.S</creatorcontrib><collection>AGRIS</collection><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Calcium & Calcified Tissue Abstracts</collection><collection>Chemoreception Abstracts</collection><collection>Nucleic Acids Abstracts</collection><collection>Agricultural Science Collection</collection><collection>ProQuest - Health & Medical Complete保健、医学与药学数据库</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Biology Database (Alumni Edition)</collection><collection>Medical Database (Alumni Edition)</collection><collection>ProQuest Pharma Collection</collection><collection>Technology Research Database</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Natural Science Collection</collection><collection>Hospital Premium Collection</collection><collection>Hospital Premium Collection (Alumni Edition)</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central</collection><collection>Agricultural & Environmental Science Collection</collection><collection>ProQuest Central Essentials</collection><collection>Biological Science Collection</collection><collection>ProQuest Central</collection><collection>Natural Science Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central</collection><collection>Engineering Research Database</collection><collection>Health Research Premium Collection</collection><collection>Health Research Premium Collection (Alumni)</collection><collection>ProQuest Central Student</collection><collection>SciTech Premium Collection</collection><collection>ProQuest Health & Medical Complete (Alumni)</collection><collection>ProQuest Biological Science Collection</collection><collection>Agricultural Science Database</collection><collection>Health & Medical Collection (Alumni Edition)</collection><collection>PML(ProQuest Medical Library)</collection><collection>Biological Science Database</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>Genetics Abstracts</collection><collection>MEDLINE - Academic</collection><jtitle>Planta</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Wu, Y</au><au>Jeong, B.R</au><au>Fry, S.C</au><au>Boyer, J.S</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Change in XET activities, cell wall extensibility and hypocotyl elongation of soybean seedlings at low water potential</atitle><jtitle>Planta</jtitle><addtitle>Planta</addtitle><date>2005-02-01</date><risdate>2005</risdate><volume>220</volume><issue>4</issue><spage>593</spage><epage>601</epage><pages>593-601</pages><issn>0032-0935</issn><eissn>1432-2048</eissn><coden>PLANAB</coden><abstract>In dark-grown soybeab (Glycine max [L.] Merr.) seedlings, exposing the roots to water-deficient vermiculite (ψw = -0.36 MPa) inhibited hypocotyl (stem) elongation. The inhibition was associated with decreased extensibility of the cell walls in the elongation zone. A detailed spatial analysis showed xyloglucan endotransglucosylase (XET; EC 2.4.1.207) activity on the basis of unit cell wall dry weight was decreased in the elongation region after seedlings were transplanted to low ψw. The decrease in XET activity was at least partially due to an accumulation of cell wall mass. Since cell number was only slightly altered, wall mass had increased per cell and probably led to increased wall thickness and decreased cell wall extensibility. Alternatively, an increase in cell wall mass may represent a mechanism for regulating enzyme activity in cell walls, XET in this case, and therefore cell wall extensibility. Hypocotyl elongation was partially recovered after seedlings were grown in low-ψw vermiculate for about 80 h. The partial recovery of hypocotyl elongation was associated with a partial recovery of cell wall extensibility and an enhancement of XET activity in the hypocotyl elongation zone. Our results indicate XTH proteins may play an important role in regulating cell wall extensibility and thus cell elongation in soybean hypocotyls. Our results also showed an imperfect correlation of spatial elongation and XET activity along the hypocotyls. Other potential functions of XTH and their regulation in soybean hypocotyl growth are discussed.</abstract><cop>Berlin</cop><pub>Springer-Verlag</pub><pmid>15375660</pmid><doi>10.1007/s00425-004-1369-4</doi><tpages>9</tpages></addata></record> |
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| subjects | Agronomy. Soil science and plant productions Bacteria Biological and medical sciences Cell growth Cell Wall - enzymology Cell Wall - ultrastructure cell wall extensibility Cell walls Corn Darkness Dehydration Economic plant physiology Enzymatic activity enzyme activity Fundamental and applied biological sciences. Psychology Glycine max Glycine max - enzymology Glycine max - physiology glycosyltransferases Glycosyltransferases - metabolism Hypocotyl - enzymology Hypocotyl - physiology Hypocotyls Kinetics plant biochemistry Plant cells plant physiology Plant roots Plants Seedlings Seedlings - enzymology Seedlings - physiology Soybeans Spatial analysis Turgor pressure Water potential Water relations, transpiration, stomata xyloglucan endotransglucosylase xyloglucans |
| title | Change in XET activities, cell wall extensibility and hypocotyl elongation of soybean seedlings at low water potential |
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