Hurber, S C and Kanai, R and Edvards, G.E. (1973) Decarboxylation of malate by isolated bundle-sheath cells of certain plants having the C4-dicarboxylic acid cycle of photosynthesis. Planta, 113 (1). pp. 53-66.
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Abstract
Bundle-sheath cells isolated by the grinding and filtration procedure of Edwards and Black (1971b) from species of plants having the C4-dicarboxylic acid pathway of photosynthesis were tested for the decarboxylation of malate from the C4-carboxyl position. The bundle-sheath cells, which showed high malic enzyme activity in extracts, decarboxylated 4[14C]malate at rates sufficient to be involved in photosynthesis. The malate decarboxylation is dependent on the addition of magnesium or manganese and NADP+. The activity was increased by raising the temperature from 30 to 50°. The evidence supports the idea that malate may be a carboxyl donor to the reductive pentose-phosphate cycle in bundle-sheath cells in certain C4-dicarboxylic acid pathway plants such as Zea mays L., Sorghum bicolor L., and Digitaria sanguinalis (L.) Scop.
| Item Type: | Article |
|---|---|
| Author Affiliation: | Department of Horticulture, University of Wisconsin, Madison, Wisconsin 53706, USA |
| Subjects: | Plant Protection Crop Improvement |
| Divisions: | Millet |
| Depositing User: | Library ICRISAT-InfoSAT |
| Date Deposited: | 12 Apr 2012 13:06 |
| Last Modified: | 12 Apr 2012 13:06 |
| Official URL: | http://dx.doi.org/10.1007/BF00385189 |
| URI: | http://eprints.icrisat.ac.in/id/eprint/4684 |
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