Post-phloem transport: Principles and problems

Journal of Experimental Botany

Volumn 47, Issue SPEC. ISS., 1996, Pages 1141-1154

  Fisher, Donald B ^a   Oparka, Karl J ^b  

^a WASHINGTON STATE UNIVERSITY   (United States)

^b SCOTTISH CROP RESEARCH INSTITUTE   (United Kingdom)

Author keywords

Apoplast; Phloem (unloading); Plasmodesmata; Symplast; Water relations

Indexed keywords

EID: 0000080857     PISSN: 00220957     EISSN: None     Source Type: Journal    
DOI: 10.1093/jxb/47.special_issue.1141     Document Type: Article

References (105)

1. Arnold WN. 1968. The selection of sucrose as the translocate of higher plants. Journal of Theoretical Biology 21, 13-20.
2. Bradford KJ. 1994. Water stress and the water relations of seed development: a critical review. Crop Science 34, 1-11.
3. Bret-Harte MS, Silk WK. 1994. Non-vascular, symplasmic diffusion of sucrose can not satisfy the carbon demands of growth in the primary root tip of Zea mays L. Plant Physiology 105, 19-33.
4. Canny MJ. 1990. Rates of apoplastic diffusion in wheat leaves. New Phytologist 116, 263-8.
5. Clarkson DT. 1993. Roots and the delivery of solutes to the xylem. Philosophical Transactions of the Royal Society of London, Series B 341, 5-17.
6. Cleland RF, Fujiwara T, Lucas WJ. 1994. Plasmodesmal-mediated cell-to-cell transport in wheat roots is modulated by anaerobic stress. Protoplasma 178, 81-5.
7. Cook H, Oparka KJ. 1983. Movement of fluorescein into isolated caryopses of wheat and barley. Plant, Cell and Environment 6, 239-42.
8. Damon S, Hewitt J, Nieder M, Bennett AB. 1988. Sink metabolism in tomato fruit. II. Phloem unloading and sugar uptake. Plant Physiology 87, 731-6.
9. Dick PS, ap Rees T. 1975. The pathway of sugar transport in roots of Pisum sativum. Journal of Experimental Botany 26, 305-14.
10. Ding B, Parthasarathy MV, Niklas K, Turgeon R. 1988. A morphometric analysis of the phloem-unloading pathway in developing tobacco leaves. Planta 176, 307-18.
11. Dong Z, Canny MJ, McCully ME, Raboredo MR, Cabadilla CF, Ortega E, Rodes. 1994. A nitrogen-fixing endophyte of sugarcane stems. A new role for the apoplast. Plant Physiology 105, 1139-47.
12. Duckett CM, Oparka KJ, Prior DAM, Dolan L, Roberts K. 1994. Dye-coupling in the root epidermis of Arabidopsis is progressively reduced during development. Development 120, 3247-55.
13. Erwee MG, Goodwin PB. 1985. Symplastic domains in extrastelar tissues of Egeria densa Planch. Planta 163, 9-19.
14. Evert RF, Russin WA. 1993. Structurally, phloem unloading in the maize leaf can not be symplastic. American Journal of Botany 80, 1310-17.
15. 14C-labelled assimilates into kernels of Zea mays L. III. An anatomical examination and microautoradiographic study of assimilate transfer. Plant Physiology 65, 864-70.
16. Findlay N, Oliver KJ, Nii N, Coombe BG. 1987. Solute accumulation by grape pericarp cells. IV. Perfusion of grape pericarp apoplast via the pedicel and evidence for xylem malfunction in ripening berries. Journal of Experimental Botany 38, 668-79.
17. Finkelstein A. 1987. Water movement through lipid bilayers, pores and plasma membranes: theory and reality. New York: John Wiley & Sons.
18. Fisher DB. 1985. In situ measurement of plant water potentials by equilibration with microdroplets of polyethylene glycol 8000. Plant Physiology 79, 270-3.
19. Fisher DB, Gifford RN. 1986. Accumulation and conversion of sugars by developing wheat grains. VI. Gradients along the transport pathway from the peduncle to the endosperm cavity during grain filling. Plant Physiology 82, 1024-30.
20. 14C]sucrose import by developing wheat grains. Plant Physiology 101, 391-8.
21. Fisher DB, Wang N. 1995. Sucrose concentration gradients along the post-phloem transport pathway in the maternal tissues of developing wheat grains. Plant Physiology 109, 587-92.
22. Forney CF, Breen PJ. 1986. Sugar content and uptake in the strawberry fruit. Journal of the American Horticultural Society 111, 241-7.
23. Giaquinta RT, Lin W, Sadler NL, Francheschi VR. 1983. Pathway of phloem unloading of sucrose in corn roots. Plant Physiology 72, 362-7.
24. Gifford RM, Evans LT. 1981. Photosynthesis, carbon partitioning and yield. Annual Review of Plant Physiology 32, 485-509.
25. Goodwin PB, Shepherd V, Erwee MG. 1990. Compartmentation of fluorescent tracers injected into the epidermal cells of Egeria densa leaves. Planta 181, 129-36.
26. Grignon N, Touraine B, Durand M. 1989. 6(5) carboxyfluorescein as a tracer of phloem sap translocation. American Journal of Botany 76, 871-7.
27. Gunning BES, Hughes JE. 1976. Quantitative assessment of symplastic transport of pre-nectar into the trichomes of Abutilon nectaries. Australian Journal of Plant Physiology 3, 619-37.
28. Gunning BES, Robards AW. 1976. Plasmodesmata and symplastic transport. In: Wardlaw IF, Passioura JB, eds. Transport and transfer processes in plants. New York: Academic Press, 15-41.
29. Hayes PM, Offler CE, Patrick JW. 1985. Plasma membrane surface areas and plasmodesmatal frequencies of the stem of Phaseolus vulgaris L. in relation to radial photosynthate transfer. Annals of Botany 56, 125-38.
30. Hayes PM, Patrick JW. 1985. Photosynthate transport in stems of Phaseolus vulgaris L. treated with gibberellic acid, indole-acetic acid or kinetin. Effects at the site of hormone application. Planta 106, 371-9.
31. Hayes PM, Patrick JW, Offler CE. 1987. The cellular pathway of radial transfer of photosynthates in stems of Phaseolus vulgaris L.: effects of cellular plasmolysis and p-chloromercuribenzene sulphonic acid. Annals of Botany 59, 635-42.
32. Heineke D, Sonewald U, Bussis D, Gunter G, Leidreiter K, Wilke I, Raschke K, Willmitzer L, Heldt HW. 1992. Apoplastic expression of yeast-derived invertase in potato. Effects on photosynthesis, leaf solute composition, water relations, and tuber composition. Plant Physiology 100, 301-8.
33. Jacobsen KR, Fisher DG, Maretzki A, Moore PH. 1992. Developmental changes in the anatomy of the sugarcane stem in relation to phloem unloading and sucrose storage. Botanica Acta 105, 70-80.
34. Jung CV. 1975. Carrier-mediated glucose transport across human red blood cell membranes. In: Surgenor DM, ed. The red blood cell, Vol. 2. New York: Academic Press, 705-51.
35. Kempers R, Prior DAM, van Bel AJE, Oparka KJ. 1993. Plasmodesmata between sieve element and companion cell of extrafascicular stem phloem of Cucurbita maxima permit passage of 3 kDa fluorescent probes. The Plant Journal 4, 567-75.
36. Koch KE, Avigne WT. 1990. Post-phloem, non-vascular transfer in citrus. Kinetics, metabolism, and sugar gradients. Plant Physiology 93, 1405-16.
37. Koch KE, Lowell CA, Avigne WT. 1986. Assimilate transfer through citrus juice vesicle stalks: a non-vascular portion of the transport path. In: Cronshaw J, Lucas WJ, Giaquinta RT, eds. Phloem transport. New York: AR Liss, Inc., 247-58.
38. Lang A, During H. 1991. Partitioning control by water potential gradient: evidence for compartmentation breakdown in grape berries. Journal of Experimental Botany 42, 1117-22.
39. Lang A, Thorpe MR. 1986. Water potential, translocation and assimilate partitioning. Journal of Experimental Botany 37, 495-503.
40. Lee DR. 1989. Vasculature of the abscission zone of tomato fruit: implications for transport. Canadian Journal of Botany 67, 1898-1902.
41. Lucas WJ, Ding B, van der Schoot C. 1993. Plasmodesmata and the supracellular nature of plants. New Phytologist 125, 435-76.
42. Malone M, Tomos AD. 1992. Measurement of gradients of water potential in elongating pea stem by pressure probe and picolitre osmometry. Journal of Experimental Botany 43, 1325-31.
43. McNeil DL. 1976. The basis of osmotic pressure maintenance during expansion growth in Helianthus annuus hypocotyls. Australian Journal of Plant Physiology 3, 311-24.
44. Meshcheryakov A, Steudle E, Komor E. 1992. Gradients of turgor, osmotic pressure, and water potential in the cortex of the hypocotyl of growing Ricinus seedlings. Plant Physiology 98, 840-52.
45. Mierzwa RJ, Evert RF. 1984. Plasmodesmatal frequency in the root of sugar beet. American Journal of Botany 71, 39(S).
46. Minchin PEH, Ryan KG, Thorpe MR. 1984. Further evidence of apoplastic unloading into the stem of bean: identification of the phloem buffering pool. Journal of Experimental Botany 35, 1744-53.
47. Minchin PEH, Thorpe MR. 1984. Apoplastic phloem unloading in the stem of bean. Journal of Experimental Botany 35, 538-50.
48. Molz FJ, Ferrier JM. 1982. Mathematical treatment of water movement in plant cells and tissue: a review. Plant, Cell and Environment 5, 191-206.
49. Moore PH, Cosgrove DJ. 1991. Developmental changes in cell and tissue water relations parameters in storage parenchyma of sugarcane. Plant Physiology 96, 794-801.
50. Morrison IN. 1976. The structure of the chlorophyll-containing cross cells and the cells of the inner pericarp of wheat during grain development. Botanical Gazette 137, 85-93.
51. Murphy R. 1989. Water flow across the sieve tube boundary: Estimating turgor and some implications for phloem loading and unloading. IV. Root tips and seed coats. Annals of Botany 63, 571-9.
52. Nonami H, Boyer JS. 1993. Direct demonstration of a growth-induced water potential gradient. Plant Physiology 102, 13-19.
53. Offler CE, Horder BW. 1992. The cellular pathway of short-distance transfer of photosynthates in developing tomato fruit. Plant Physiology 99, 41(S).
54. Offler CE, Nerlich SF, Patrick JW. 1989. Pathway of photosynthate transfer in the developing seed of Vicia faba L. transfer in relation to seed anatomy. Journal of Experimental Botany 40, 769-80.
55. Offler CE, Patrick JW. 1984. Cellular structures, plasma membrane surface areas and plasmodesmatal frequencies of seed coats of Phaseolus vulgaris L. in relation to photosynthate transfer. Australian Journal of Plant Physiology 11, 79-99.
56. Offler CE, Patrick JW. 1993. Pathway of photosynthate transfer in the developing seed of Vicia faba L: a structural assessment of the role of transfer cells in unloading from the seed coat. Journal of Experimental Botany 44, 711-24.
57. Oparka KJ. 1986. Phloem unloading in the potato tuber. Pathways and sites of ATPase. Protoplasma 131, 201-10.
58. Oparka KJ. 1990. What is phloem unloading? Plant Physiology 94, 393-6.
59. Oparka KJ, Duckett CM, Prior DAM, Fisher DB. 1994. Real-time imaging of phloem unloading in the root of Arabidopsis. The Plant Journal 6, 759-66.
60. Oparka KJ, Gates P. 1981. Transport of assimilates in the developing caryopsis of rice (Oryza sativa L.). The pathways of water and assimilated carbon. Planta 152, 388-96.
61. Oparka KJ, Gates P. 1982. Ultrastructure of the developing pigment strand of rice (Oryza sativa L.) in relation to its role in solute transport. Protoplasma 113, 33-43.
62. 14C-sucrose efflux from the perimedulla of growing potato tubers. Plant, Cell and Environment 10, 667-75.
63. Oparka KJ, Prior DAM. 1988. Movement of Lucifer Yellow CH in potato tuber storage tissues: a comparison of symplastic and apoplastic transport. Planta 176, 533-40.
64. Oparka KJ, Prior DAM. 1992. Direct evidence for pressure-generated closure of plasmodesmata. The Plant Journal 2, 741-50.
65. Oparka KJ, Van Bel AJE. 1992. Pathways of phloem loading and unloading. A plea for uniform terminology. In: Pollock CJ, Farrar JF, Gordon AJ, eds. Carbon partitioning within and between organisms. Oxford: BIOS Scientific Publishers Ltd, 249-54.
66. Oparka KJ, Viola R, Wright KM, Prior DAM. 1992. Sugar transport and metabolism in the potato tuber. In: Pollock CJ, Farrar JF, Gordon AJ, eds. Carbon partitioning within and between organisms. Oxford: BIOS Scientific Publishers Ltd, 91-114.
67. Oparka KJ, Wright KM. 1988. Influence of cell turgor on sucrose partitioning in potato tuber storage tissues. Planta 175, 520-6.
68. Oparka KJ, Wright KM, Prior DAM. 1995. Symplastic communication between primary and developing lateral roots of Arabidopsis thaliana. Journal of Experimental Botany 46, 187-97.
69. Patrick JW, Offler CE, Wang X-D. 1995. Cellular pathway of photosynthate transport in coats of developing seed of Vicia faba L. and Phaseolus vulgaris L. I. Extent of transport through the coat symplast. Journal of Experimental Botany 46, 35-47.
70. Patrick JW, Turvey PM. 1981. The pathway of radial transfer of photosynthate in decapitated stems of Phaseolus vulgaris L. Annals of Botany 47, 611-21.
71. Pizzolato TD. 1990. Vascular system of the fertile floret of Cynodon dactylon (Gramineae-Eragrostoideae). Botanical Gazette 151, 477-89.
72. Pomper KW, Breen PJ. 1995. Levels of apoplastic solutes in developing strawberry fruit. Journal of Experimental Botany 46, 743-52.
73. Pritchard J. 1994. The control of cell expansion in roots. New Phytologist 127, 3-26.
74. Pritchard J, Williams G, Wjn Jones RG, Tomos AD. 1989. Radial turgor pressure profiles in growing and mature zones of wheat roots - a modification of the pressure probe. Journal of Experimental Botany 40, 567-71.
75. Renkin EM. 1954. Filtration, diffusion, and molecular sieving through porous cellulose membranes. Journal of General Physiology 38, 225-43.
76. Richter E, Ehwald R. 1983. Apoplastic mobility of sucrose in storage parenchyma of sugar beet. Physiologia Plantarum 58, 263-8.
77. Ruan Y-L, Patrick JW. 1995. The cellular pathway of post-phloem sugar transport in developing tomato fruit. Planta 196, 434-44.
78. Rygol J, Pritchard J, Zhu JJ, Tomos AD, Zimmermann U. 1993. Transpiration induces radial turgor pressure gradents in wheat and maize roots. Plant Physiology 103, 493-500.
79. Sauter JJ, Kloth S. 1986. Plasmodesmatal frequency and radial translocation rates in ray cells of poplar (Populus x canadensis Moench 'robusta'. Planta 168, 377-80.
80. Schmalstig JG, Cosgrove DJ. 1990. Coupling of solute transport and cell expansion in pea stems. Plant Physiology 94, 1625-33.
81. Schmalstig JG, Geiger DR. 1985. Phloem unloading in developing leaves of sugar beet. I. Evidence for pathway through the symplast. Plant Physiology 79, 237-41.
82. Schulz A. 1994. Phloem transport and differential unloading in pea seedlings after source and sink manipulations. Planta 192, 239-48.
83. Schulz A. 1995. Plasmodesmal widening accompanies the short-term increase in symplasmic phloem unloading in pea root tips under osmotic stress. Protoplasma 188, 22-37.
84. Sharp RE, Hsiao TC, Silk WK. 1990. Growth of the maize primary root at low water potentials. II. Role of growth and deposition of hexose and potassium in osmotic adjustment. Plant Physiology 93, 1337-46.
85. Spollen WG, Sharp RE. 1991. Spatial distribution of turgor and root growth at low water potentials. Plant Physiology 96, 438-43.
86. Steudle E. 1990. Methods for studying water relations of plant cells and tissues. In: Hashimoto Y, Nonami H, Kramer PJ, Strain BR, eds. Measurement techniques in plant sciences. San Diego: Academic Press, 113-50.
87. Terry BR, Robards AW. 1987. Hydrodynamic radius alone governs the mobility of molecules through plasmodesmata. Planta 171, 145-57.
88. Tomos AD, Leigh RA, Palta JA, Williams JHH. 1992. Sucrose and cell water relations. In: Pollock CJ, Farrar JF, Gordon AJ, eds. Carbon partitioning within and between organisms. Oxford: BIOS Scientific Publishers Ltd, 71-89.
89. Tomos AD, Pritchard J. 1994. Biophysical and biochemical control of cell expansion in roots and leaves. Journal of Experimental Botany 45, 1721-31.
90. Tucker EB. 1990. Calcium-loaded 1,2-bis(2-aminophenoxy)-N,N,N,N′-tetraacetic acid blocks cell-to-cell diffusion in staminal hairs of Setcreasea purpurea. Planta 182, 34-8.
91. Tucker JE, Mauzerall D, Tucker EB. 1989. Symplastic transport of carboxyfluorescein in staminal hairs of Setcreasea purpurea is diffusive and includes loss to the vacuole. Plant Physiology 90, 1143-7.
92. Turgeon R. 1987. Phloem unloading in tobacco sink leaves: insensitivity to anoxia indicates a symplastic pathway. Planta 171, 73-81.
93. van Bel AJE, Oparka KJ. 1995. On the validity of plasmodesmograms. Botanica Acta 108, 174-82.
94. van Bel AJE, van Kesteren WJP, Papenhuizen C. 1988. Ultrastructural indications for coexistence of symplastic and apoplastic phloem loading in Commelina benghalensis leaves. Differences in ontogenic development, spatial arrangement and symplastic connections of the two sieve tubes in the minor veins. Planta 176, 159-72.
95. Wang HL, Offler CE, Patrick JW, Ugalde TD. 1994. The cellular pathway of photosynthate transfer in the developing wheat grain. I. Delineation of a potential transfer pathway using fluorescent dyes. Plant, Cell and Environment 17, 257-67.
96. Wang HL, Offler CE, Patrick JW. 1995. The cellular pathway of photosynthate transfer in the developing wheat grain. II. A structural analysis and histochemical studies of the pathway from the crease phloem to the endosperm cavity. Plant, Cell and Environment 18, 373-88.
97. Wang N, Fisher DB. 1994a. Monitoring phloem unloading and post-phloem transport by microperfusion of developing wheat grains. Plant Physiology 104, 7-16.
98. Wang N, Fisher DB. 1994b. The use of fluorescent tracers to characterize the post-phloem transport pathway in maternal tissues of developing wheat grains. Plant Physiology 104, 17-27.
99. Warmbrodt RD. 1985a. Studies on the root of Hordeum vulgare L. - ultrastructure of the seminal root with special reference to the phloem. American Journal of Botany 72, 414-32.
100. Warmbrodt RD. 1985b. Studies on the root of Zea mays L. - structure of the adventitious roots with respect to phloem unloading. Botanical Gazette 146, 169-85.
101. Welbaum GE, Meinzer FC. 1990. Compartmentation of solutes and water in developing sugarcane stalk tissue. Plant Physiology 93, 1147-53.
102. Welbaum GE, Meinzer FC, Grayson RL, Thornham KT. 1992. Evidence for and consequences of a barrier to solute diffusion between the apoplast and vascular bundles in sugarcane stalk tissue. Australian Journal of Plant Physiology 19, 611-23.
103. Wyse R. 1979. Sucrose uptake by sugar beet tap root tissue. Plant Physiology 64, 837-41.
104. Zee SY. 1972. Vascular tissue and transfer cell distribution in the rice spikelet. Australian Journal of Biological Sciences 25, 411-14.
105. Zee SY, O'Brien TP. 1970. A special type of tracheary element associated with 'xylem discontinuity' in the floral axis of wheat. Australian Journal of Biological Sciences 23, 1153-71.