Evolution, polymorphology and multifunctionality of the phloem system

Perspectives in Plant Ecology, Evolution and Systematics

Volumn 2, Issue 2, 1999, Pages 163-184

  Van Bel, Aart J E ^a  

^a JUSTUS LIEBIG UNIVERSITY   (Germany)

Author keywords

Carbohydrate management; Carbon allocation; Companion cell; Evolution; Phloem; Sieve element

Indexed keywords

PHLOEM;

EID: 0033367940     PISSN: 14338319     EISSN: None     Source Type: Journal    
DOI: 10.1078/1433-8319-00069     Document Type: Article

References (194)

1. Balanchandran, S., Xiang, Y., Schobert, C., Thompson, G.A. & Lucas, W.J. (1997) Phloem sap proteins from Cucurbita maxima and Ricinus communis have the capacity to traffic cell to cell through plasmodesmata. Proceedings of the National Academy of Sciences USA, 94, 14150-14155.
2. Beebe, D.U. & Evert, R.F. (1992) Photoassimilate pathway(s) and phloem loading in the leaf of Moricandia arvensis (L.) DC. (Brassicaceae). International Journal of Plant Sciences, 153, 61-77.
3. Beebe, D.U. & Russin, W.A. (1999) Plasmodesmata in the phloem loading pathway. Plasmodesmata. Structure, Function, Role in Cell Communication (eds. A.J.E. van Bel & W.J.P. van Kesteren), pp. 261-293. Springer, Berlin.
4. Behnke, H.D. (1991a) Distribution and evolution of forms and types of sieve-element plastids in the dicotyledons. ALISO, 3, 167-182.
5. Behnke, H.D. (1991b) Non dispersive protein bodies in sieve elements: a survey and review of their origin, distribution and taxonomic significance. IAWA Bulletin, 12, 143-175.
6. Behnke, H.D. & Sjolund R.D. (1990) Sieve Elements. Comparative Structure, Induction and Development. Springer, Berlin.
7. 4 plants in relation to phloem unloading. Planta, 163, 439-447.
8. Bostwick, D.E., Dannenhoffer, J.M., Skaggs, M.I., Lister, R.M., Larkins, B.A. & Thompson, G.A. (1992) Pumpkin phloem lectin genes are specifically expressed in companion cells. Plant Cell, 4, 1539-1548.
9. +-ATPase in minor veins of Vicia faba in relation to phloem loading. Plant Physiology, 105, 691-697.
10. 14C assimilates by p-chloromercuribenzenesulfonic acid. Localization of the apoplastic pathway in Vicia faba. Plant Physiology, 92, 97-102.
11. Burr, F.A. & Evert, R.F. (1973) Some aspects of sieve-element structure and development in Selaginella kraussiana. Protoplasma, 78, 81-97.
12. Clark, A.M., Jacobsen, K.R., Dannenhoffer, J.M., Skaggs, M.I. & Thompson, G.A. (1997) Molecular characterization of a phloem-specific gene encoding the filament protein, phloem protein 1 (PP1) from Cucurbita maxima. Plant Journal, 12, 49-61.
13. Cole, K.M. & Sheath R.G. (1990) Biology of the Red Algae. Cambridge University Press, Cambridge.
14. Cook, M.E. & Graham, L.E. (1999) Evolution of plasmodesmata. Plasmodesmata. Structure, Function, Role in Cell Communication (eds. A.J.E. van Bel & W.J.P. van Kesteren), pp. 101-117. Springer, Berlin.
15. Cook, M.E., Graham, L.E., Botha, C.E.J. & Lavin, C.A. (1997) Comparative ultrastructure of plasmodesmata of Chara and selected bryophytes: toward an elucidation of the evolutionary origin of plant plasmodesmata. American Journal of Botany, 84, 1169-1178.
16. Dale, J. (1987) Sucrose uptake in the isolated phloem of celery is a single saturable system. Planta, 171, 474-482.
17. Dannenhoffer, J.M., Schulz, A., Skaggs, M.I., Bostwick, D.E. & Thompson, G.A. (1997) Expression of the phloem lectin is developmentally linked to vascular differentiation in cucurbits. Planta, 201, 405-414.
18. Davis, J.D. & Evert, R.F. (1970) Seasonal development of phloem development in woody vines. Botanical Gazette, 131, 128-138.
19. Deshpande, B.P. (1974) Development of the sieve plate in Saxifraga sarmentosa L. Annals of Botany, 38, 151-158.
20. Deshpande, B.P. (1975) Differentiation of the sieve plate of Cucurbita: a further view. Annals of Botany, 39, 1015-1022.
21. Ding, B. (1998) Intercellular protein trafficking through plasmodesmata. Plant Molecular Biology, 38, 279-310.
22. Ding, B., Pathasarathy, M.V., Niklas, K.J. & Turgeon, R. (1988) A morphometric analysis of the phloem-unloading pathway in developing tobacco leaves. Planta, 176, 307-318.
23. Ding, B., Haudenshield, J.S., Hull, R.J., Wolf, S., Beachy, R.N. & Lucas, W.J. (1992) Secondary plasmodesmata are specific sites of localization of the tobacco mosaic movement protein in transgenic tobacco plants. Plant Cell, 4, 915-928.
24. Ding, B., Haudenshield, J.S., Willmitzer, L. & Lucas, W.J. (1993) Correlation between arrested secondary plasmodesmal development and onset of accelerated leaf senescence in yeast acid invertase transgenic tobacco plants-. Plant Journal, 4, 179-189.
25. Dute, R.R. & Evert, R.F. (1977) Sieve element ontogeny in the root of Equisetum hyemale. American Journal of Botany, 64, 421-438.
26. Eleftheriou, E.P. (1990) Monocotyledons. Sieve Elements. Comparative Structure, Induction and Development (eds. H.-D. Behnke & R.D. Sjolund), pp. 139-159. Springer, Berlin.
27. Esau, K. (1947) A study of some sieve-tube inclusions. American Journal of Botany, 34, 224-233.
28. Esau, K. (1969) The Phloem. Bornträger, Berlin.
29. Esau, K. (1977) Anatomy of Seed Plants. Wiley, New York
30. Eschrich, W. & Fromm, J. (1994) Evidence for two pathways of phloem loading. Physiologia Plantarum, 90, 699-707.
31. Eschrich, W., Currier, H.B., Yamaguchi, S. & McNairn, R.B. (1965) Der Einfluss verstärkter Callosebildung auf den Stofftransport in Siebröhren. Planta, 65, 49-64.
32. Eschrich, W., Evert, R.F. & Young, J.H. (1972) Solution flow in tubular semipermeable membranes. Planta, 107, 279-300.
33. Evert, R.F. (1976) Some aspects of the sieve-element structure and development in Botrychium virginianum. Israelian Journal of Botany, 25, 101-126.
34. Evert, R.F. (1990a) Seedless vascular plants. Sieve Elements. Comparative Structure, Induction and Development (eds. H.-D. Behnke & R.D. Sjolund), pp. 35-62. Springer, Berlin.
35. Evert, R.F. (1990b) Dicotyledons. Sieve Elements. Comparative Structure, Induction and Development (eds. H.-D. Behnke & R.D. Sjolund), pp. 103-137. Springer, Berlin.
36. Feldmann, J. & Feldmann G. (1946) Recherches sur l'appareil conducteur des Floridées. Cytologie et Cytophysiologie Végétale, 8, 161-209.
37. Fisher, D.B., Wu, K. & Ku, M.S.B. (1992) Turnover of soluble proteins in the wheat sieve tube. Plant Physiology, 100, 1433-1441.
38. Fisher, D.G. (1986) Ultrastructure, plasmodesmatal frequency and solute concentration in green areas of variegated Coleus blumei Benth. leaves. Planta, 169, 141-152
39. Fisher, D.G. (1990) Distribution of plasmodesmata in leaves. A comparison of Cananga odarata with other species using different measures of plasmodesmatal frequency. Parallels in Cell to Cell Junctions in Plants and Animals NATO ASI Ser. Vol H46 (eds. A.W. Robards, W.J. Lucas, J.D. Pitts, H.J. Jongsma & D.C. Spray), pp. 199-221. Springer, Berlin.
40. 14C-assimilate into nonphotosynthetic portions of variegated Coleus blumei leaves. Canadian Journal of Botany, 63, 1708-1712.
41. Fisher, D.G. & Evert, R.F. (1982) Studies on the leaf of Amaranthus retroflexus (Amaranthaceae): ultrastructure, plasmodesmatal frequency, and solute concentration in relation to phloem loading. Planta, 155, 377-387.
42. Flora, L.L. & Madore, M.A. (1996) Significance of minor-vein anatomy to carbohydrate transport. Planta, 198, 171-178.
43. Franceschi, V.R. & Lucas, W.J. (1982) The relationship of the charosome to chloride uptake in Chara corallina: physiological and histochemical investigations. Planta, 154, 525-537.
44. 14C-labelled photoassimilates. Trees, 2, 7-17.
45. Fukuda, H. (1997) Tracheary element differentiation. The Plant Cell, 9, 1147-1156.
46. Gagnon, M.-J. & Beebe, D.U. (1996) The development of specialized plasmodesmata between companion cells and contiguous cells during minor vein differentiation in expanding leaves of Moricandia arvensis. Third International Workshop on Basic and Applied Research in Plasmodesmal Biology. pp. 126-128, Zichron-Yakov, Israel.
47. Gamalei, Y.V. (1985) Characteristics of phloem loading in woody and herbaceous plants. Fiziologia Rastenii, 32, 866-875.
48. Gamalei, Y.V. (1989) Structure and function of leaf minor veins in trees and herbs. Trees, 3, 96-110.
49. Gamalei, Y.V. (1990) Leaf Phloem (in Russian). Nauka, Leningrad.
50. Gamalei, Y.V. (1991) Phloem loading and its development related to plant evolution from trees to herbs. Trees, 5, 50-64.
51. Gamalei, Y.V., Pakhomova, M.V. & Sjutkina, A.V. (1992) Ecological aspects of assimilate transport. I. Temperature. Fiziologia Rastenii, 39, 1068-1078.
52. Gamalei, Y.V., van Bel, A.J.E., Pakhomova, M.V. & Sjutkina, A.V. (1994) Effects of the temperature on the conformation of the ER and on starch accumulation in leaves with the symplasmic minor-vein configuration. Planta, 194, 443-453.
53. Gamalei, Y.V., Pakhomova M.V., Sjutkina, A.V., Van Bel, A.J.E., Luwe, M.W.F. & Heber, U. (1996) From intermediary to transfer cells and from symplastic to apoplastic phloem loading. Phylogenetic and ontogenetic trends. Plant Biochemistry and Physiology, special issue, pp. 178-179.
54. Golecki, B., Schulz, A., Carstens-Behrens, U. & Kollmann, R. (1998) Evidence for graft transmission of structural phloem proteins or their precursors in heterografts of Cucurbitaceae. Planta, 206, 630-640.
55. Golecki, B., Schulz, A. & Thompson, G.A. (1999) Translocation of structural P proteins in the phloem. Plant Cell, 11, 127-140.
56. Goodrick, B.J., Kuhn, C.W. & Hussey, R.S. (1991) Restricted systemic movement of cowpea chlorotic mottle virus in soybean with nonnecrotic resistance. Phytopathology, 81, 1426-1431.
57. Graham, L.E. (1993) The Origin of Land Plants. Wiley, New York.
58. Grime, J.P. & Hunt, R. (1975) Relative growth-rate: its range and adaptive significance in a local flora. Journal of Ecology, 63, 393-422.
59. Grimm, E., Bernhardt, G., Rothe, K. & Jacob, F. (1990) Mechanism of sucrose retrieval along the phloem path - a kinetic approach. Planta, 182, 480-485.
60. Hartmann, T. (1999) Chemical ecology of pyrrolizidine alkaloids. Planta, 207, 483-495.
61. Hébant, C. (1973) Le noyau des cellules "phloémiennes" (= leptoïdes) des Bryophytes est-il dégénérescent? Comptes Rendus de l'Académie des Sciences Paris Série D, 276, 3131-3134.
62. Hébant, C. (1975) Lack of incorporation of tritiated uridine by nuclei of mature sieve elements in Metasequoia glyptostroboides and Sequoiadendron giganteum. Planta, 126, 161-163.
63. Hébant, C. (1976) Studies on the development of the conducting-tissue system in the gametophyte of some Polytrichales. III. Further observation on leptoids, with particular reference to their endoplasmic reticulum. Protoplasma, 87, 79-90.
64. Hébant, C., Guirard, R. & Martin, M.G. (1980) Le phloème de Selaginella wildenowii: histophysiologie comparée. Plant Systematics and Evolution, 135, 159-169.
65. Hickey, L.J. (1979) A revised classification of the architecture of dicotyledonous leaves. Anatomy of the Dicotyledons (eds. C.R. Metcalfe & L. Chalk), pp. 15-39. Oxford University Press, New York.
66. Horner, H.T., Lersten, N.R. & Wirth, C.L. (1994) Quantitative survey of sieve tube distribution in foliar terminal veins of ten dicot species. American Journal of Botany, 81, 1267-1274.
67. Hsu, F.C. & Kleier, D.A. (1996) Phloem mobility of xenobiotics. VIII. A short review. Journal of Experimental Botany, 47, 1265-1271.
68. Iqbal, M. (1995a) The Cambial Derivatives. Bornträger, Berlin.
69. Iqbal, M. (1995b) Ultrastructural differentiation of sieve elements. The Cambial Derivatives (ed. M. Iqbal), pp. 241-270. Bomträger, Berlin.
70. Ishiwatari, Y., Fujiwara, T., McFarland, K.C., Nemoto, K., Hayashi, H., Chino, M. & Lucas, W.J. (1998) Rice phloem thioredoxin h has the capacity to mediate its own cell-to-cell transport through plasmodesmata. Planta, 205, 12-22.
71. Jorgensen, R.A, Atkinson, R.G., Forster, R.L.S. & Lucas, W.J. (1998) An RNA-based information superhighway in plants. Science, 279, 1486-1488.
72. Kalinin, V.A. & Opritov, V.A. (1989) Role of Δψ and Δ pH in proton-dependent sucrose transport in plasma membrane vesicles of plant phloem. Fiziologia Rastenii, 36, 901-909.
73. Katsaros, C. & Galatis, B. (1988) Thallus development in Dictyopteris membranacea (Phaeophyta, Dictyotales). British Phycological Journal, 23, 71-88.
74. Kauss, H. (1987) Some aspects of calcium-dependent regulation in plant metabolism. Annual Review of Plant Physiology, 38, 47-72.
75. Kempers, R. (1997), Physiological and ultrastructural aspects ol the interaction between sieve element and companion cell. PhD thesis, University of Utrecht, The Netherlands.
76. Kempers, R. & van Bel, A.J.E. (1997) Symplasmic connections between sieve element and companion cell in the stem phloem of Vicia faba L. have a size exclusion limit of at least 10 kDa. Planta, 201, 195-201.
77. Kempers, R., Prior, D.A.M., van Bel, A.J.E. & Oparka, K.J. (1993) Plasmodesmata between sieve element and companion cell of extrafascicular phloem of Cucurbita maxima permit passage of 3 kDa fluorescent probes. Plant Journal, 4, 567-575.
78. Kempers, R., Ammerlaan, A. & van Bel, A.J.E. (1998) Symplasmic constriction and ultrastructural features of the sieve element/companion cell complex in the transport phloem of apoplasmically and symplasmically phloem-loading species. Plant Physiology, 116, 271-278.
79. Kingston-Smith, A.H. & Pollock, C.J. (1996) Tissue level localization of acid invertase in leaves: an hypothesis for the regulation of carbon export. New Phytologist, 134, 423-432.
80. Knoblauch, M. & van Bel, A.J.E. (1998) Sieve tubes in action. The Plant Cell, 10, 35-50.
81. Kollmann, R. & Glockmann, C. (1999) Multimorphology and nomenclature of plasmodesmata in higher plants. Plasmodesmata. Structure, Function, Role in Cell Communication (eds. A.J.E. van Bel & W.J.P. van Kesteren), pp. 149-172. Springer, Berlin.
82. Komor, E. (1977) Sucrose uptake by cotyledons of Ricinus communis L: characteristics, mechanism, and regulation. Planta, 137, 119-131.
83. 2 responsiveness of plants: a possible link to phloem loading. Plant, Cell and Environment, 18, 595-600.
84. Kruatrachue, M. & Evert, R.F. (1977) The lateral meristem and its derivatives in the corm of Isoetes muricata. American Journal of Botany, 64, 310-325.
85. Kühn, C., Franceschi, V.R., Schulz, A., Lemoine, R. & Frommer, W.B. (1997) Macromolecular trafficking indicated by localization and turnover of sucrose transporters in enucleate sieve elements. Science, 275, 1298-1300.
86. Kwiatkowska, M. & Maszewski, J. (1986) Changes in the occurrence and ultrastructure of plasmodesmata in antheridia of Chara vulgaris L. during different stages of spermatogenesis. Protoplasma, 132, 179-188.
87. Lamoureux, C.H. (1961) Comparative study on phloem of vascular cryptogams. PhD thesis, University of California Davis, USA.
88. Lawton, D.M. (1978) P-protein crystals do not disperse in uninjured sieve elements in roots of runner bean (Phaseolus multiflorus) fixed with glutaraldehyde. Annals of Botany, 42, 353-361.
89. Lehmann, J. (1979) Nachweis von ATP und ATPase in den Siebröhren von Cucurbita pepo. Zeitschrift für Pflanzenphysiologie, 94, 331-338.
90. Lersten, N.R. (1990) Sieve tubes in foliar vein endings: review and quantitative survey of Rudbeckia laciniata (Asteraceae). American Journal of Botany, 77, 1132-1141.
91. Linstead, P., Dolan, L. & Roberts K. (1993) Arabidopsis. An Atlas of Morphology and Development (ed. J. Bowman). pp. 102-103. Springer, Berlin.
92. Lucas, W.J., Ding, B. & van der Schoot, C. (1993a) Plasmodesmata and the supracellular nature of plants. New Phytologist, 125, 435-476.
93. Lucas, W.J., Olesinski, A., Hull, R.J., Haudenshield, J.S., Deom, C.M., Beachy, R.N. & Wolf, S. (1993b) Influence of the tobacco mosaic virus 30-kDa movement protein on carbon metabolism and photosynthate partitioning in transgenic tobacco plants. Planta, 190, 88-96.
94. Marchant, H.J. (1976) Plasmodesmata in algae and fungi. Intercellular Communication in Plants: Studies on Plasmodesmata (eds. A.W. Robards & B.E.S. Gunning). pp. 58-80. Springer, Berlin.
95. McCauley, M.M. & Evert, R.F. (1989) Minor veins of the potato (Solanum tuberosum L.) leaf: ultrastructure and plasmodesmatal frequency. Botanical Gazette, 150, 351-368.
96. McNairn, R.B. & Currier, H.B. (1968) Translocation blockage by sieve plate callose. Planta, 82, 369-380.
97. Minchin, P.E.H. & Thorpe, M.R. (1987) Measurement of unloading and reloading of photo-assimilate within the stem of bean. Journal of Experimental Botany, 38, 211-220.
98. Moe, R.L. & Silva, P.C. (1981) Morphology and taxonomy of Himantothallus (including Phaeoglossum and Phyllogigas), an Antarctic member of the Desmarestiales (Phaeophyceae). Journal of Phycology, 17, 15-29.
99. Moss, B.L. (1983) Sieve elements in the Fucales. New Phytologist, 93, 433-437.
100. Münch, E. (1930) Die Stoffbewegungen in der Pflanze. Gustav Fischer, Jena.
101. Nakamura S, Hayashi, H., Mori, S. & Chino, M. (1993) Protein phosphorylation in the sieve tubes of rice plants. Plant and Cell Physiology, 34, 927-933.
102. Nelson, T. & Dengler, N. (1997) Leaf vascular pattern formation. The Plant Cell, 9, 1121-1135.
103. Nelson, R.S. & van Bel, A.J.E. (1998) The mystery of virus trafficking into, through and out of the vascular tissue. Progress in Botany, 59, 476-533.
104. Neuberger, D.S. & Evert, R.F. (1975) Structure and development of the sieve areas in the hypocotyl of Pinus resinosa. Protoplasma, 84, 109-125.
105. Neumann, S. & Wollgiehn, R. (1964) Über die Beziehungen der RNS-und Proteinsynthese zum Zellkern in Siebzellen von Vicia faba. Zeitschrift für Naturforschung, 19b, 1066-1071.
106. Niklas, K.J. (1997) The Evolutionary Biology of Plants. University of Chicago Press, Chicago London.
107. Offler, C.E. & Patrick, J.W. (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, 79-90.
108. Oparka, K.J. & Turgeon, R. (1999) Sieve elements and companion cells - traffic control centers of the phloem. Plant Cell, 11, 739-750.
109. Opritov, V.A. & Pyatygin, S.S. (1989) Evidence for coupling of the action potential generation with the electrogenic component of the resting potential in Cucurbita pepo L. stem excitable cells. Biochemie und Physiologie der Pflanzen, 184, 447-451.
110. Palevitz, B.A. & Newcomb, E.H. (1971) The ultrastructure and development of tubular and crystalline P-protein in the sieve elements of certain papilionaceous legumes. Protoplasma, 72, 399-426.
111. Pearce, G., Strydom, D., Johnson, S. & Ryan, C.A. (1991) A polypeptide from tomato leaves induces wound-inducible proteinase inhibitor proteins. Science, 253, 895-898.
112. Pennell, R.I. & Lamb, C. (1997) Programmed cell death in plants. The Plant Cell, 9, 1157-1168.
113. Perry, J.W. & Evert, R.F. (1975) Structure and development of the sieve elements in Psilotum nudum. American Journal of Botany, 62, 1038-1052.
114. Poorter, H. & Remkes, C. (1990) Leaf area ratio and net assimilation rate of 24 wild species differing in relative growth rate. Oecologia, 83, 553-559.
115. 3 species. Plant, Cell and Environment, 20, 472-482.
116. Pueschel, C.M. (1990) Cell structure. Biology of Red Algae (eds. K.M. Cole & R.G. Sheath), pp. 7-41. Cambridge University Press, Cambridge.
117. Radford, J.E., Vesk, M. & Overall, R.L. (1998) Callose deposition at plasmodesmata. Protoplasma, 201, 30-37.
118. Raven, J.A. (1984) Energetics and Transport in Aquatic Plants. Liss, New York.
119. Raven, J.A. (1991) Long-term functioning of enucleate sieve elements: possible mechanisms of damage avoidance and damage repair. Plant, Cell and Environment, 14, 139-146.
120. Raven, J.A. (1997) Multiple origins of plasmodesmata. European Journal of Phycology, 32, 95-101.
121. Raven, P.H., Evert, R.F. & Eichhorn, S.E. (1998) Biology of Plants. Freeman, New York.
122. Read, S.M. & Northcote, D.H. (1983) Chemical and immunological similarities between the phloem proteins of three genera of Cucurbitaceae. Planta, 158, 119-127.
123. Rhodes, J, Thain, J.F. & Wildon, D.C. (1996) The pathway for systemic electrical signal conduction in the wounded tomato plant. Planta, 200, 50-57.
124. Roberts, A., Santa Cruz, S., Roberts, I.M., Prior, D.A.M., Turgeon, R. & Oparka, K. (1997) Phloem unloading in sink leaves of Nicotiana benthamiana is symplastic: Comparison of a fluorescent solute with a fluorescent virus. Plant Cell, 9, 1381-1396.
125. Robinson-Beers, K. & Evert, R.F. (1991) Fine structure of plasmodesmata in mature leaves of sugarcane. Planta, 184, 307-318.
126. Roth, I. (1996) Microscopic Venation Pattern of Leaves and their Importance in the Distinction of (Tropical) Species. Encyclopedia of Plant Anatomy. Bornträger, Berlin.
127. Russin, W.A. & Evert, R.F. (1985) Studies on the leaf of Populus deltoides (Salicaceae): ultrastructure, plasmodesmatal frequency, and solute concentrations. American Journal of Botany, 72, 1232-1247.
128. Russin, W.A., Evert, R.F., Vanderveer, P.J., Sharkey, T.D. & Briggs, S.P. (1996) Modification of a specific class of plasmodesmata and loss of sucrose export ability in the sucrose export defective1 maize mutant. The Plant Cell, 8, 645-658.
129. Ryals, J.A., Neuenschwander, D.H., Willits, M.G., Molina, A., Steiner, H.-Y. & Hunt, M.D. (1996) Systemic acquired resistance. The Plant Cell, 8, 1809-1819.
130. Sakuth, T., Schobert, C., Pecsvaradi, A., Eichholz, A., Komor, E. & Orlich, G. (1993) Specific proteins in the sieve-tube exudate of Ricinus communis L. seedlings: separation, characterization and in-vivo labelling. Planta, 191, 207-213.
131. Sandgren, C.D., Smol, J.P. & Kristensen, J. (1994) Chrysophyte Algae: Ecology, Phylogeny and Development. Cambridge University Press, Cambridge.
132. Sauter, J.J., Dörr, I. & Kollmann, R. (1976) The ultrastructure of Strasburger cells (= albuminous cells) in the secondary phloem of Pinus nigra var. austriaca (Hoess) Badoux. Protoplasma, 88, 31-49.
133. Scheirer, D.C. (1983) Leaf parenchya with transfer-cell like characteristics in the moss Polytrichum commune Hedw. American Journal of Botany, 70, 987-992.
134. Scheirer, D.C. (1990) Mosses. Sieve Elements. Comparative Structure, Induction and Development. (eds. H.-D. Behnke & R.D. Sjolund). pp. 19-33. Springer, Berlin.
135. Schmalstig, J.G. & Geiger, D.R. (1985) Phloem unloading in developing leaves of sugar beet. I. Evidence for pathway through the symplast. Plant Physiology, 79, 237-241.
136. Schmalstig, J.G. & Geiger, D.R. (1987) Phloem unloading in developing leaves of sugar beet. II. Termination of phloem unloading. Plant Physiology, 83, 49-52.
137. Schmitz, K. (1990) Algae. Sieve Elements. Comparative Structure, Induction and Development. (eds. H.-D. Behnke & R.D. Sjolund), pp. 1-18. Springer, Berlin.
138. Schmitz, K., Cuypers, B. & Moll, M. (1987) Pathway of assimilate transfer betweeen mesophyll cells and minor veins in leaves of Cucumis melo L. Planta, 171, 19-29.
139. Schobert, C., Großmann, P., Gottschalk, M., Komor, E., Pecsvaradi, A. & zur Nieden, U. (1995) Sieve-tube exudate from Ricinus communis L. seedlings contains ubiquitin and chaperones. Planta, 196, 205-210.
140. Schobert, C., Baker, L., Szederkenyi, J., Großmann, P., Komor, E., Hayashi, H., Chino, M. & Lucas, W.J. (1998) Identification of immunologically related proteins in sieve-tube exudate collected from monocotyledonous and dicotyledonous plants. Planta, 206, 245-252.
141. Schulz, A. (1990) Conifers. Sieve Elements. Comparative Structure, Induction and Development (eds. H.-D. Behnke & R.D. Sjolund), pp. 63-88. Springer, Berlin.
142. Schulz, A. (1992) Living sieve cells of conifers as visualized by confocal, laser-scanning fluorescence microscopy. Protoplasma, 166, 153-164.
143. Schulz, A. (1994) Phloem transport and differential unloading in pea seedlings after source and sink manipulations. Planta, 192, 239-248.
144. Schulz, A. & Behnke, H.-D. (1987) Feinbau und Differenzierung des Phloems von Buchen, Fichten und Tannen aus Waldschadengebieten. PEF-Berichte, Kernforschungszentrum Karlsruhe.
145. Scott, P.C., Miller, L.W., Webster, B.D. & Leopold, A.C. (1967). Structural changes during bean leaf abscission. American Journal of Botany, 54, 730-734.
146. Sibaoka, T. (1962) Excitable cells in Mimosa. Science, 137, 226.
147. Sjolund R.D. & Shih, C.Y. (1983) Freeze-fracture analysis of phloem structure in plant tissue cultures. I. The sieve element reticulum. Journal of Ultrastructural Research, 82, 111-121.
148. Stadler, R. & Sauer, R. (1996) The Arabidopsis thaliana AtSUC2 gene is specifically expressed in companion cells. Botanica Acta, 109, 299-306.
149. Stadler, R., Brandner, J., Schulz, A., Gahrtz, M. & Sauer, N. (1995) Phloem loading by the PmSUC2 sucrose carrier from Plantago major occurs into companion cells. The Plant Cell, 7, 1545-1554.
150. Stevenson, D.W. (1974) Ultrastructure of the nacreous leptoids (sieve elements) in the polytracheous moss Atrichum undulatum. American Journal of Botany, 61, 414-421.
151. Stitt M. (1996) Plasmodesmata play an essential role in sucrose export from leaves: a step toward an integration of metabolic biochemistry and cell biology. The Plant Cell, 8, 565-571.
152. Taiz, L. & Zeiger, E. (1998) Plant Physiology. Sinauer, Sunderland.
153. Taylor, E.L. (1990) Phloem evolution: an appraisal based on the fossil record. Sieve Elements. Comparative Structure, Induction and Development (eds. H.-D. Behnke & R.D. Sjolund), pp. 285-298. Springer, Berlin.
154. Thompson, J.R. & Garcia-Arenal, F. (1998) The bundle-sheath phloem interface of Cucumis sativus is a boundary to systemic infection by tomato aspermy virus. Molecular Plant-Microbe Interactions, 11, 109-114.
155. Thorsch, J. & Esau, K. (1981a) Changes in the endoplasmic reticulum during differentiation of a sieve element in Gossypium hirsutum. Journal of Ultrastructural Research, 74, 183-194.
156. Thorsch, J. & Esau, K. (1981b) Nuclear degeneration and the association of endoplasmic reticulum with the nuclear envelope and microtubules in maturing sieve elements of Gossypium hirsutum. Journal of Ultrastructural Research, 74, 195-204.
157. + symporter gene directs expression of ß-glucuronidase to the phloem: evidence for phloem loading by SUC2. Planta, 196, 564-570.
158. Turgeon, R. (1984) Termination of nutrient import and development of vein loading capacity in albino tobacco leaves. Planta, 76, 45-48.
159. Turgeon, R. (1986) The import-export transition in dicotyledonous leaves. Phloem Transport (eds. J. Cronshaw, W.J. Lucas & R.T. Giaquinta), pp. 285-291. Liss, New York.
160. Turgeon, R. (1987) Phloem unloading in tobacco sink leaves: insensitivity to anoxia indicates a symplastic pathway. Planta, 171, 73-81.
161. Turgeon, R. (1989) The sink-source transition in leaves. Annual Review of Plant Physiology and Plant Molecular Biology, 40, 119-138.
162. Turgeon, R. (1996) Phloem loading and plasmodesmata. Trends in Plant Science, 1, 418-423.
163. Turgeon, R. & Medville, R. (1998) The absence of phloem loading in willow leaves. Proceedings of the National Academy of Sciences USA, 95, 12055-12060.
164. Turgeon, R. & Webb, J.A. (1973. Leaf development and phloem transport in Cucurbita pepo; transition from import to export. Planta, 113, 179-191.
165. 14C]-sucrose in leaves of Pisum sativum and Coleus blumei. Plant Physiology, 87, 179-182.
166. Turgeon, R., Webb, J.A. & Evert, R.F. (1975) Ultrastructure of minor veins in Cucurbita pepo leaves. Protoplasma 83, 217-232.
167. Turgeon, R., Beebe, D.U. & Gowan, E. (1993) The intermediary cell: minor-vein anatomy and raffinose oligosaccharide synthesis in the Scrophulariaceae. Planta, 191, 446-456.
168. Van Bel, A.J.E. (1992) Different phloem-loading machineries correlated with the climate. Acta Botanica Neerlandica, 42, 121-141.
169. Van Bel, A.J.E. (1993a) The transport phloem. Specifics of its functioning. Progress in Botany, 54, 134-150.
170. Van Bel, A.J.E. (1993b) Strategies of phloem loading. Annual Review of Plant Physiology and Plant Molecular Biology, 44, 253-281.
171. Van Bel, A.J.E. (1995) The low profile directors of carbon and nitrogen economy in plants: parenchyma cells associated with translocation channels. Plant stems. Physiology and Functional Morphology (ed. B.L. Gartner). pp. 205-222. Academic Press, San Diego.
172. Van Bel, A.J.E. (1996) Interaction between sieve element and companion cell and the consequences for photoassimilate distribution. Two structural hardware frames with associated software packages in dicotyledons? Journal of Experimental Botany, 47, 1129-1140.
173. Van Bel, A.J.E. & Gamalei, Y.V. (1992) Ecophysiology of phloem loading in source leaves. Plant, Cell and Environment, 15, 265-270.
174. Van Bel, A.J.E. & Kempers, R. (1991) Symplastic isolation of the sieve element-companion cell complex in the phloem of Ricinus communis and Salix alba stems. Planta, 183, 69-76.
175. Van Bel, A.J.E. & Kempers, R. (1997) The pore/plasmodesm unit; key element in the interplay between sieve element and companion cell. Progress in Botany, 58, 278-291.
176. Van Bel, A.J.E. & van Rijen, H.V.M. (1994) Microelectrode-recorded development of the symplasmic autonomy of the sieve element/companion cell complex in the stem phloem of Lupinus luteus L. Planta, 192, 165-175.
177. Van Bel, A.J.E. & Visser, A.J. (1994) Phloem transport, carbon and nitrogen allocation, and interspecific differences in relative growth rate. A Whole Plant Perspective on Carbon-Nitrogen Interactions (eds. J. Roy & E. Garnier), pp. 197-213. SPB Academic Publishing, The Hague.
178. Van Bel, A.J.E., Gamalei, Y.V., Ammerlaan, A. & Bik, L.P.M. (1992) Dissimilar phloem loading in leaves with symplasmic and apoplasmic minor-vein configurations. Planta, 186, 518-525.
179. Van Bel, A.J.E., Ammerlaan, A. & Van Dijk, A.A. (1994) A three-step screening procedure to identify the mode of phloem loading in intact leaves. Evidence for symplasmic and apoplasmic phloem loading associated with the type of companion cell. Planta, 192, 31-39.
180. Van Bel, A.J.E., Hendriks, J.H.M., Boon, E.M.J.C., Gamalei, Y.V. & Van de Merwe, A.P. (1996) Different ratios of raffinose/saccharose-induced membrane depolarizations in the mesophyll of species with symplasmic (Catharanthus roseus, Ocimum basilicum) or apoplasmic (Impatiens walleriana, Vicia faba) minor-vein configurations. Planta, 199, 185-192.
181. Van Bel, A.J.E., Günther, S. & van Kesteren, W.J.P. (1999) Plasmodesmata, a maze of questions. Plasmodesmata. Structure, Function, Role in Cell Communication (eds. A.J.E. van Bel & W.J.P. van Kesteren), pp. 2-26. Springer, Berlin.
182. Van den Hoek, C., Mann, D.G. & Jahns, H.M. (1995) Algae: an Introduction to Phycology. Cambridge University Press, Cambridge.
183. Van der Schoot, C. (1989) Determinants of the xylem-to-phloem transfer in tomato. PhD thesis, University of Utrecht.
184. Van der Schoot, C. & van Bel, A.J.E. (1989) Glass microelectrode measurements of sieve tube membrane potentials in internodes and petioles of tomato (Solanum lycopersicum L.). Protoplasma, 149, 144-154.
185. Warmbrodt, R. & VanDerWoude, W.J. (1990) Leaf of Spinacia oleracea (spinach): ultrastructure, and plasmodesmatal distribution and frequency, in relation to sieve-tube loading. American Journal of Botany, 77, 1361-1377.
186. Webster, D.H. & Currier, H.B. (1965) Callose: lateral movement of assimilates from phloem. Science, 150, 1610-1611.
187. Wergin, W.P., Palevitz, B.A. & Newcomb, E.H. (1975) Structure and development of P-protein in phloem parenchyma and companion cells of legumes. Tissue and Cell, 7, 227-242.
188. Wildon, D.C., Thain, J.F., Minchin, P.E.H., Gubb, I.R., Reilly, A.J., Skipper, Y.D., Doherty, H.M., O'Donnell, P.J. & Bowles, D.J. (1992) Electrical signalling and systemic proteinase inhibitor induction in the wounded plant. Nature, 360, 62-65.
189. Wimmers, L.E. & Turgeon, R. (1991) Transfer cells and solute uptake in minor veins of Pisum sativum leaves. Planta, 186, 2-12.
190. Wright, J.P. & Fisher, D.B. (1981) Measurement of the sieve tube membrane potential. Plant Physiology, 67, 845-848.
191. Zahur, M.S. (1959) Comparative study of the secondary phloem of 423 species of woody cotyledons belonging to 85 families. Cornell University Agricultural Experiment Station Memoir 358.
192. Ziegler, H. (1975) Nature of transported substances. I Phloem Transport. Encyclopedia of Plant Physiology (eds. M.H. Zimmermann & J.A. Milburn), pp. 59-100. Springer, Berlin.
193. Ziegler, H. (1990) Photosynthate allocation in trees -meaning for growth rate. Fast Growing Trees and Nitrogen Fixing Trees (eds. D. Werner & P. Müller), pp. 166-172. Gustav Fischer, Stuttgart.
194. Zimmermann, M.H. & Ziegler, H. (1975) List of sugars and sugar alcohols in sieve-tube exudates. I Phloem Transport. Encyclopedia of Plant Physiology (eds. M.H. Zimmermann & J.A. Milburn), pp. 480-503. Springer, Berlin.