Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2010-6-29
pubmed:abstractText
The uptake of radioactively labeled hexoses and pentoses into the sorbitol-impermeable (3)H(2)O space (the space surrounded by the inner envelope membrane) of spinach (Spinacia oleracea L.) chloroplasts has been studied using silicone layer filtering centrifugation. Of the compounds tested, d-xylose, d-mannose, l-arabinose, and d-glucose are transported most rapidly, followed by d-fructose and l-arabinose. The rate of l-glucose uptake is only about 5% of that of d-glucose.The transport of d-glucose and d-fructose shows saturation characteristics, the K(m) for d-glucose was found to be about 20 mm. All sugars transport and phloretin inhibit d-glucose transport. The temperature dependency of d-glucose transport appears to have an activation energy of 17 kcal/mol.With low external concentrations of d-glucose the transport into the chloroplasts proceeds until nearly the external concentration is reached inside the chloroplasts.d-glucose transport is inhibited by high d-glucose concentrations in the medium. It is concluded that d-glucose and other hexoses are transported by carrier-mediated diffusion across the inner envelope membrane. This transport is similar to the transport of d-glucose into erythrocytes.
pubmed:commentsCorrections
http://linkedlifedata.com/resource/pubmed/commentcorrection/16660077-13559473, http://linkedlifedata.com/resource/pubmed/commentcorrection/16660077-13648629, http://linkedlifedata.com/resource/pubmed/commentcorrection/16660077-13668540, http://linkedlifedata.com/resource/pubmed/commentcorrection/16660077-13853748, http://linkedlifedata.com/resource/pubmed/commentcorrection/16660077-13910603, http://linkedlifedata.com/resource/pubmed/commentcorrection/16660077-16659602, http://linkedlifedata.com/resource/pubmed/commentcorrection/16660077-16660011, http://linkedlifedata.com/resource/pubmed/commentcorrection/16660077-16742437, http://linkedlifedata.com/resource/pubmed/commentcorrection/16660077-4146342, http://linkedlifedata.com/resource/pubmed/commentcorrection/16660077-4155956, http://linkedlifedata.com/resource/pubmed/commentcorrection/16660077-4394211, http://linkedlifedata.com/resource/pubmed/commentcorrection/16660077-4443792, http://linkedlifedata.com/resource/pubmed/commentcorrection/16660077-4630890, http://linkedlifedata.com/resource/pubmed/commentcorrection/16660077-4747067, http://linkedlifedata.com/resource/pubmed/commentcorrection/16660077-5125246, http://linkedlifedata.com/resource/pubmed/commentcorrection/16660077-5339288, http://linkedlifedata.com/resource/pubmed/commentcorrection/16660077-5560365, http://linkedlifedata.com/resource/pubmed/commentcorrection/16660077-5642624, http://linkedlifedata.com/resource/pubmed/commentcorrection/16660077-5892434, http://linkedlifedata.com/resource/pubmed/commentcorrection/16660077-856580
pubmed:language
eng
pubmed:journal
pubmed:status
PubMed-not-MEDLINE
pubmed:month
Aug
pubmed:issn
0032-0889
pubmed:author
pubmed:issnType
Print
pubmed:volume
60
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
286-9
pubmed:dateRevised
2010-9-14
pubmed:year
1977
pubmed:articleTitle
Glucose transport into spinach chloroplasts.
pubmed:affiliation
Botanisches Institut der Universität Düsseldorf, Germany.
pubmed:publicationType
Journal Article