In order to study the location of enzymes of photorespiration in leaves of the C3-C4 intermediate species Moricandia arvensis (L.). DC, protoplast fractions enriched in mesophyll or bundlesheath cells have been prepared by a combination of mechanical and enzymic techniques. The activities of the mit
Plasmodesmata between mesophyll and bundle sheath cells in relation to the exchange of C4-acids
โ Scribed by Peter Olesen
- Publisher
- Springer-Verlag
- Year
- 1975
- Tongue
- English
- Weight
- 853 KB
- Volume
- 123
- Category
- Article
- ISSN
- 0032-0935
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โฆ Synopsis
In the C~ species Salsola kali L. the frequency of plasmodesmata in the wall between mesophyll and bundle sheath cells has been determined with great precision by the use of transmission and scanning electron microscopy. The frequency of 14 โข 10 s cm -2 is rather high compared to values from other plant tissues, but if it is assumed that the postulated exchange of C4-acids occur in the desmotubulus of the plasmodesmata, the fraction of the mesophyll-bundle sheath interface occupied by plasmodesmatal pores is 10-102 times smaller than previously thought.
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