Rapid-growth Responses of Corn Root Segments: Effect of Citrate-phosphate Buffer on Elongation
The effects of citrate-phosphate buffer on the elongation rate of 2 mm root segments of Zea mays L. was investigated under O2 and N2 conditions by comparing with the effects in non-buffered solution. The buffer at pH 7.0 has an inhibiting effect on the elongation rate of root segments. At pH 4.0 the...
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| Veröffentlicht in: | Planta 1976-01, Vol.129 (3), p.229-233 |
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| creator | Edwards, Kathryn L. Scott, Tom K. |
| description | The effects of citrate-phosphate buffer on the elongation rate of 2 mm root segments of Zea mays L. was investigated under O2 and N2 conditions by comparing with the effects in non-buffered solution. The buffer at pH 7.0 has an inhibiting effect on the elongation rate of root segments. At pH 4.0 the buffer has a promoting effect on the elongation rate twice that of the H-ion concentration. Nitrogen experiments indicate that growth in neutral buffer is O2 dependent. On the other hand the acid-growth response of root segments in citrate-phosphate buffer appears to have two components, 1) a H-ion component which is partially inhibited by N2 and fluoride and 2) a citrate component which is inhibited in part by N2 but not by fluoride. |
| doi_str_mv | 10.1007/BF00398262 |
| format | Article |
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The buffer at pH 7.0 has an inhibiting effect on the elongation rate of root segments. At pH 4.0 the buffer has a promoting effect on the elongation rate twice that of the H-ion concentration. Nitrogen experiments indicate that growth in neutral buffer is O2 dependent. On the other hand the acid-growth response of root segments in citrate-phosphate buffer appears to have two components, 1) a H-ion component which is partially inhibited by N2 and fluoride and 2) a citrate component which is inhibited in part by N2 but not by fluoride.</description><identifier>ISSN: 0032-0935</identifier><identifier>EISSN: 1432-2048</identifier><identifier>DOI: 10.1007/BF00398262</identifier><identifier>PMID: 24430961</identifier><language>eng</language><publisher>Germany: Springer-Verlag</publisher><subject>Anaerobic conditions ; Calcium ; Cell walls ; Chlorides ; Citrates ; Corn ; Fluorides ; Nitrogen ; Plant roots</subject><ispartof>Planta, 1976-01, Vol.129 (3), p.229-233</ispartof><rights>Springer-Verlag Berlin Heidelberg 1976</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c307t-547fa2be0e63c51d9daf1f72c537ce47fa30add1879cb70cc727ea17488827e53</citedby><cites>FETCH-LOGICAL-c307t-547fa2be0e63c51d9daf1f72c537ce47fa30add1879cb70cc727ea17488827e53</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.jstor.org/stable/pdf/23372052$$EPDF$$P50$$Gjstor$$H</linktopdf><linktohtml>$$Uhttps://www.jstor.org/stable/23372052$$EHTML$$P50$$Gjstor$$H</linktohtml><link.rule.ids>314,776,780,799,4009,27901,27902,27903,57994,58227</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/24430961$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Edwards, Kathryn L.</creatorcontrib><creatorcontrib>Scott, Tom K.</creatorcontrib><title>Rapid-growth Responses of Corn Root Segments: Effect of Citrate-phosphate Buffer on Elongation</title><title>Planta</title><addtitle>Planta</addtitle><description>The effects of citrate-phosphate buffer on the elongation rate of 2 mm root segments of Zea mays L. was investigated under O2 and N2 conditions by comparing with the effects in non-buffered solution. The buffer at pH 7.0 has an inhibiting effect on the elongation rate of root segments. At pH 4.0 the buffer has a promoting effect on the elongation rate twice that of the H-ion concentration. Nitrogen experiments indicate that growth in neutral buffer is O2 dependent. On the other hand the acid-growth response of root segments in citrate-phosphate buffer appears to have two components, 1) a H-ion component which is partially inhibited by N2 and fluoride and 2) a citrate component which is inhibited in part by N2 but not by fluoride.</description><subject>Anaerobic conditions</subject><subject>Calcium</subject><subject>Cell walls</subject><subject>Chlorides</subject><subject>Citrates</subject><subject>Corn</subject><subject>Fluorides</subject><subject>Nitrogen</subject><subject>Plant roots</subject><issn>0032-0935</issn><issn>1432-2048</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1976</creationdate><recordtype>article</recordtype><recordid>eNpFkEFLwzAYhoMobk4v3pUcRah-Sdqm9ebGpsJAmHq1ZGmydbRNTVLEf2_mpp6-l-95eA8vQucEbggAvx3PAFie0ZQeoCGJGY0oxNkhGoY3jSBnyQCdOLcBCJDzYzSgccwgT8kQvS9EV5XRyppPv8YL5TrTOuWw0XhibIsXxnj8olaNar27w1OtlfQ_tPJWeBV1a-O6dUh43AdosWnxtDbtSvjKtKfoSIvaqbP9HaG32fR18hjNnx-eJvfzSDLgPkpirgVdKlApkwkp81JoojmVCeNSbSEDUZYk47lccpCSU64E4XGWZSElbISudr2dNR-9cr5oKidVXYtWmd4VJM6BJ1ma8aBe71RpjXNW6aKzVSPsV0Gg2O5Z_O8Z5Mt9b79sVPmn_g4YhIudsHHe2H_OGKeQUPYNPP15MA</recordid><startdate>19760101</startdate><enddate>19760101</enddate><creator>Edwards, Kathryn L.</creator><creator>Scott, Tom K.</creator><general>Springer-Verlag</general><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>19760101</creationdate><title>Rapid-growth Responses of Corn Root Segments: Effect of Citrate-phosphate Buffer on Elongation</title><author>Edwards, Kathryn L. ; Scott, Tom K.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c307t-547fa2be0e63c51d9daf1f72c537ce47fa30add1879cb70cc727ea17488827e53</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1976</creationdate><topic>Anaerobic conditions</topic><topic>Calcium</topic><topic>Cell walls</topic><topic>Chlorides</topic><topic>Citrates</topic><topic>Corn</topic><topic>Fluorides</topic><topic>Nitrogen</topic><topic>Plant roots</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Edwards, Kathryn L.</creatorcontrib><creatorcontrib>Scott, Tom K.</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Planta</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Edwards, Kathryn L.</au><au>Scott, Tom K.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Rapid-growth Responses of Corn Root Segments: Effect of Citrate-phosphate Buffer on Elongation</atitle><jtitle>Planta</jtitle><addtitle>Planta</addtitle><date>1976-01-01</date><risdate>1976</risdate><volume>129</volume><issue>3</issue><spage>229</spage><epage>233</epage><pages>229-233</pages><issn>0032-0935</issn><eissn>1432-2048</eissn><abstract>The effects of citrate-phosphate buffer on the elongation rate of 2 mm root segments of Zea mays L. was investigated under O2 and N2 conditions by comparing with the effects in non-buffered solution. The buffer at pH 7.0 has an inhibiting effect on the elongation rate of root segments. At pH 4.0 the buffer has a promoting effect on the elongation rate twice that of the H-ion concentration. Nitrogen experiments indicate that growth in neutral buffer is O2 dependent. On the other hand the acid-growth response of root segments in citrate-phosphate buffer appears to have two components, 1) a H-ion component which is partially inhibited by N2 and fluoride and 2) a citrate component which is inhibited in part by N2 but not by fluoride.</abstract><cop>Germany</cop><pub>Springer-Verlag</pub><pmid>24430961</pmid><doi>10.1007/BF00398262</doi><tpages>5</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0032-0935 |
| ispartof | Planta, 1976-01, Vol.129 (3), p.229-233 |
| issn | 0032-0935 1432-2048 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_1490758687 |
| source | Jstor Complete Legacy; Springer Nature - Complete Springer Journals |
| subjects | Anaerobic conditions Calcium Cell walls Chlorides Citrates Corn Fluorides Nitrogen Plant roots |
| title | Rapid-growth Responses of Corn Root Segments: Effect of Citrate-phosphate Buffer on Elongation |
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