Localisation of sucrose-phosphate synthase and starch in leaves of C4 plants

被引：58

作者：

Lunn J.E. ^{[1
]}

Furbank R.T. ^{[1
]}

机构：

[1] CSIRO Plant Industry, GPO Box 1600, Canberra

来源：

Planta | 1997年 / 202卷 / 1期

关键词：

C[!sub]4[!/sub] photosynthesis; Localisation; (starch; sucrose synthesis); Starch synthesis; Sucrose synthesis; Sucrose-phosphate synthase;

D O I：

10.1007/s004250050108

中图分类号：

学科分类号：

摘要：

The activity and intercellular distribution of sucrose-phosphate synthase (SPS; EC 2.4. 1.14) were determined in fully expanded leaves from a range of C4 plants. In Zea mays L. and Atriplex, spongiosa F. Muell., SPS was located almost exclusively in the mesophyll cells. In other species, SPS was found in both cell types, with the activity in the bundle sheath cells ranging from 5% of the total leaf activity in Echinochloa crus-galli (L.) Beauv. to 35% in Sorghum bicolor Moench. At the end of the light period, starch was found only in the bundle sheath cells in all of the species examined. There appears to be little correlation between C4-acid decarboxylation type and the location of sucrose and starch synthesis in the leaves of C4 plants.

引用

页码：106 / 111

页数：5

共 30 条

[1]

Agostino A., Furbank R.T., Hatch M.D., Maximising photosynthetic activity and cell integrity in isolated bundle sheath cell strands from C<sub>4</sub> species, Aust J Plant Physiol, 16, pp. 279-290, (1989)

[2]

Ashton A., Burnell J.N., Furbank R.T., Jenkins C.L.D., Hatch M.D., Enzymes of C<sub>4</sub> photosynthesis, Methods in Plant Biochemistry, Vol 3: Enzymes of Primary Metabolism, 3, pp. 39-72, (1990)

[3]

Bruneau J.M., Worrell A.C., Cambou B., Lando D., Voelker T.A., Sucrose phosphate synthase, a key enzyme for sucrose biosynthesis in plants - Protein purification from corn leaves and immunological detection, Plant Physiol, 96, pp. 473-478, (1991)

[4]

Chen T.M., Dittrich P., Campbell W.H., Black C.C., Metabolism of epidermal tissues, mesophyll cells, and bundle sheath strands resolved from mature nutsedge leaves, Arch Biochem Biophys, 163, pp. 246-262, (1974)

[5]

Cheng W.H., Im K.H., Chourey P.S., Sucrose phosphate synthase expression at the cell and tissue level is coordinated with sucrose sink-to-source transitions in maize leaf, Plant Physiol, 111, pp. 1021-1029, (1996)

[6]

Crafts-Brandner S.J., Salvucci M.E., Species and environmental variations in the effect of inorganic phosphate on sucrose-phosphate synthase activity reliability of assays based upon UDP formation, Plant Physiol, 91, pp. 469-472, (1989)

[7]

Downton W.J.S., Hawker J.S., Enzymes of starch and sucrose metabolism in Zea mays leaves, Phytochemistry, 12, pp. 1551-1556, (1973)

[8]

Downton W.J.S., Tregunna E.B., Carbon dioxide compensation - Its relation to photosynthetic carboxylation reactions, systematics of the Gramineae, and leaf anatomy, Can J Bot, 46, pp. 207-215, (1968)

[9]

Echeverria E., Boyer C.D., Localization of starch biosynthetic and degradative enzymes in maize leaves, Am J Bot, 73, pp. 167-171, (1986)

[10]

Furbank R.T., Stitt M., Foyer C.H., Intercellular compartmentation of sucrose synthesis in leaves of Zea mays L, Planta, 164, pp. 172-178, (1985)

← 1 2 3 →