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Transpiration rate affects the mobility of foliar-applied boron in Ricinus communis L. cv. Impala

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Abstract

In plant species not containing polyols, boron (B) is regarded as practically phloem immobile. This has been explained by the high membrane permeability of boric acid (BA) resulting in a rapid efflux out of the phloem and re-transport into the leaf in the xylem. The present study investigated how the xylem flow rate affects the phloem mobility of foliar-applied BA in Ricinus communis L. cv. Impala. Xylem flow rates were varied by exposure of the canopy to different levels of relative humidity (RH). In seedlings with severed hypocotyls, i.e. without xylem flow, B was highly mobile. In intact seedlings and plants, the degree of mobility and the within-plant distribution of B were strongly RH-dependent. At RH of 70% or above, up to 16–24% of the B was translocated to other plant parts, whereas at lower RH no significant movement of B was detected. Only at an intermediate RH (70–80%), did leaf-applied B accumulate in roots. At 100% RH, B transport in the xylem was significantly increased, suggesting that the build up of root pressure induced the recycling of phloem delivered B from roots to shoots. These results indicate that in R. communis phloem B mobility is not constant, but strongly affected by transpiration rates.

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References

  • Asad A, Blamey FPC, Edwards DG (2003) Effects of boron foliar applications on vegetative and reproductive growth of sunflower. Ann Bot 92:565–570

    Article  CAS  PubMed  Google Scholar 

  • Brown PH, Shelp BJ (1997) Boron mobility in plants. Plant Soil 193:85–101

    Article  CAS  Google Scholar 

  • Brown PH, Hu H (1998) Phloem boron mobility in diverse plant species. Bot Acta 111:331–335

    CAS  Google Scholar 

  • Crisp CE (1972) The molecular design of systemic insecticides and organic functional groups in translocation. In: Tahori AS (ed) Pesticide chemistry, Vol. 1., Proceedings of the 2nd IUPAC Congress. Gordon and Breach, New York, pp. 211–264

  • da Silva DH, Rossi ML, Boaretto AE, Nogueira ND, Muraoka T (2008) Boron affects the growth and ultrastructure of castor bean plants. Sci Agric (Piracicaba, Braz.) 65:659–664

    Google Scholar 

  • Dell B, Huang LB (1997) Physiological response of plants to low boron. Plant Soil 193:103–120

    Article  CAS  Google Scholar 

  • Dordas C (2006) Foliar boron application improves seed set, seed yield, and seed quality of alfalfa. Agron J 98:907–913

    Article  CAS  Google Scholar 

  • Dordas C, Brown PH (2000) Permeability of boric acid across lipid bilayers and factors affecting it. J Membrane Biol 175:95–105

    Article  CAS  Google Scholar 

  • Dordas C, Brown PH (2001) Evidence for channel mediated transport of boric acid in squash (Curcubita pepo). Plant Soil 235:95–103

    Article  CAS  Google Scholar 

  • Dordas C, Crispeels MJ, Brown PH (2000) Permeability and channel-mediated transport of boric acid across membrane vesicles isolated from squash roots. Plant Physiol 124:1349–1361

    Article  CAS  PubMed  Google Scholar 

  • Hall SM, Baker DA (1972) The chemical composition of Ricinus phloem exudate. Planta 106:131–140

    Article  CAS  Google Scholar 

  • Henzler T, Waterhouse RN, Smyth AJ, Carvajal M, Cooke DT, Schaffner AR, Steudle E, Clarkson DT (1999) Diurnal variations in hydraulic conductivity and root pressure can be correlated with the expression of putative aquaporins in the roots of Lotus japonicus. Planta 210:50–60

    Article  CAS  PubMed  Google Scholar 

  • Hu HN, Penn SG, Lebrilla CB, Brown PH (1997) Isolation and characterization of soluble boron complexes in higher plants. The mechanism of phloem mobility of boron. Plant Physiol 113:649–655

    Article  CAS  PubMed  Google Scholar 

  • Huang L, Bell RW, Dell B (2001) Boron supply into wheat (Triticum aestivum L. cv. Wilgoyne) ears whilst still enclosed within leaf sheaths. J Exp Bot 52:1731–1738

    Article  CAS  PubMed  Google Scholar 

  • Huang L, Bell RW, Dell B (2008) Evidence of phloem boron transport in response to interrupted boron supply in white lupin (Lupinus albus L. cv. Kiev Mutant) at the reproductive stage. J Exp Bot 59:575–583

    Article  CAS  PubMed  Google Scholar 

  • Kallarackal J, Orlich G, Schobert C, Komor E (1989) Sucrose transport into the phloem of Ricinus communis L. seedlings as measured by the analysis of sieve-tube sap. Planta 177:327–335

    Article  CAS  Google Scholar 

  • Keren R, Bingham FT (1985) Boron in water, soils, and plants. In: Stewart BA (ed) Advances in soil science VI. Springer, New York, pp 230–276

    Google Scholar 

  • Lehto T, Räisänen M, Lavola A, Julkunen-Tiitto R, Aphalo PJ (2004) Boron mobility in deciduous forest trees in relation to their polyols. New Phytol 163:333–339

    Article  CAS  Google Scholar 

  • Lopez M, Bousser AS, Sissoeff I, Gaspar M, Lachaise B, Horarau J, Mahe A (2003) Diurnal regulation of water transport and aquaporin gene expression in maize roots: contribution of PIP2 proteins. Plant Cell Physiol 44:1384–1395

    Article  CAS  PubMed  Google Scholar 

  • Marentes E, Shelp BJ, Vanderpool RA, Spiers GA (1997) Retranslocation of boron in broccoli and lupin during early reproductive growth. Physiol Plant 100:389–399

    Article  CAS  Google Scholar 

  • Nachiangmai D, Dell B, Bell R, Huang LB, Rerkasem B (2004) Enhanced boron transport into the ear of wheat as a mechanism for boron efficiency. Plant Soil 264:141–147

    Article  CAS  Google Scholar 

  • Oertli JJ, Richardson WF (1970) The mechanism of boron immobility in plants. Physiol Plant 23:108–116

    Article  CAS  Google Scholar 

  • Pickard WF (2003) The riddle of root pressure. I. Putting Maxwell’s demon to rest. Funct Plant Biol 30:121–134

    Article  Google Scholar 

  • Raven JA (1980) Short- and long-distance transport of boric acid in plants. New Phytol 84:231–249

    Article  CAS  Google Scholar 

  • Shelp BJ, Kitheka AM, Vanderpool RA, Van Cauwenberghe OR, Spiers GA (1998) Xylem-to-phloem transfer of boron in broccoli and lupin during early reproductive growth. Physiol Plant 104:553–540

    Article  Google Scholar 

  • Shrestha GK, Thompson MM, Righetti TL (1987) Foliar-applied boron increases fruit set in “Barcelona” hazelnut. J Amer Soc Hort Sci 112:412–416

    CAS  Google Scholar 

  • Silva AP, Rosa E, Haneklaus SH (2003) Influence of foliar boron application on fruit set and yield of hazelnut. J Plant Nutr 26:561–569

    Article  CAS  Google Scholar 

  • Takano J, Miwa K, Yuan LX, von Wiren N, Fujiwara T (2005) Endocytosis and degradation of BOR1, a boron transporter of Arabidopsis thaliana, regulated by boron availability. Proc Natl Acad Sci USA 102:12276–12281

    Article  CAS  PubMed  Google Scholar 

  • Takano J, Miwa K, Fujiwara T (2008) Boron transport mechanisms: collaboration of channels and transporters. Trends Plant Sci 13:451–457

    Article  CAS  PubMed  Google Scholar 

  • Wimmer MA, Goldbach HE (1999a) Influence of Ca2+ and pH on the stability of different boron fractions in intact roots of Vicia faba L. Plant Biol 1:632–637

    Article  CAS  Google Scholar 

  • Wimmer MA, Goldbach HE (1999b) A miniaturized curcumin method for the determination of boron in solutions and biological samples. J Plant Nutr Soil Sci 162:15–18

    Article  CAS  Google Scholar 

  • Wojcik P, Wojcik M, Klamkowski K (2008) Response of apple trees to boron fertilization under conditions of low soil boron availability. Sci Hortic 116:58–64

    Article  CAS  Google Scholar 

  • Zhang J, Wang MY, Wu LH, Wu JG, Shi CH (2008) Impacts of combination of foliar iron and boron application on iron biofortification and nutritional quality of rice grain. J Plant Nutr 31:1599–1611

    Article  CAS  Google Scholar 

  • Zimmermann MH, Ziegler H (1975) List of sugars and sugar alcohols in sieve-tube exudates. In: Zimmermann MH, Milburn JA (eds) Encyclopedia of plant physiology, new series, vol. 1, transport in plants I. Phloem transport. Springer, Berlin, pp 480–503

    Google Scholar 

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Acknowledgements

This study was supported by a grant from Deutsche Forschungsgemeinschaft (DFG).

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Authors and Affiliations

  1. Institute of Crop Science and Resource Conservation, Department of Plant Nutrition, University of Bonn, Karlrobert-Kreiten-Str. 13, 53115, Bonn, Germany

    Thomas Eichert & Heiner E. Goldbach

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  1. Thomas Eichert
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  2. Heiner E. Goldbach
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Correspondence to Thomas Eichert.

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Responsible Editor: Richard W. Bell.

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Eichert, T., Goldbach, H.E. Transpiration rate affects the mobility of foliar-applied boron in Ricinus communis L. cv. Impala. Plant Soil 328, 165–174 (2010). https://doi.org/10.1007/s11104-009-0094-y

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