Jörg Schönherr

Summary

Country: Germany

Publications

  1. ncbi request reprint Calcium chloride penetrates plant cuticles via aqueous pores
    J Schönherr
    Abteilung Obstbau, Institut für Gemüse und Obstbau, Universitat Hannover, Sarstedt, Germany
    Planta 212:112-8. 2000
  2. ncbi request reprint A mechanistic analysis of penetration of glyphosate salts across astomatous cuticular membranes
    Jörg Schönherr
    Institute of Vegetable and Fruit Science, University of Hannover, Am Steinberg 3, 31157 Sarstedt, Germany
    Pest Manag Sci 58:343-51. 2002
  3. ncbi request reprint Characterization of aqueous pores in plant cuticles and permeation of ionic solutes
    Jörg Schönherr
    Fruit Science Division, Institute of Vegetable and Fruit Science, University of Hannover, Herrenhauser Strasse 2, D 30419 Hannover, Germany
    J Exp Bot 57:2471-91. 2006
  4. ncbi request reprint Rates of foliar penetration of chelated Fe(III): role of light, stomata, species, and leaf age
    Thomas K Schlegel
    Institute of Biological Production Systems, Fruit Science Division, University of Hannover, Herrenhauser Strasse 2, 30419 Hannover, Germany
    J Agric Food Chem 54:6809-13. 2006
  5. ncbi request reprint Interactions of calcium ions with weakly acidic active ingredients slow cuticular penetration: a case study with glyphosate
    Jörg Schönherr
    Institute of Vegetable and Fruit Science, University of Hannover, Am Steinberg 3, 31157 Sarstedt, Germany
    J Agric Food Chem 52:6546-51. 2004
  6. ncbi request reprint Size selectivity of aqueous pores in astomatous cuticular membranes isolated from Populus canescens (Aiton) Sm. leaves
    Jörg Schönherr
    Institute of Vegetable and Fruit Science, University of Hannover, Am Steinberg 3, 31157, Sarstedt, Germany
    Planta 219:405-11. 2004
  7. ncbi request reprint Size selectivity of aqueous pores in stomatous cuticles of Vicia faba leaves
    Thomas K Schlegel
    Institute of Vegetable and Fruit Science, University of Hannover, Am Steinberg 3, 31157 Sarstedt, Germany
    Planta 221:648-55. 2005
  8. ncbi request reprint Rates of cuticular penetration of chelated Fe(III): role of humidity, concentration, adjuvants, temperature, and type of chelate
    Jörg Schönherr
    Institute of Vegetable and Fruit Science, University of Hannover, Am Steinberg 3, 31157 Sarstedt, Germany
    J Agric Food Chem 53:4484-92. 2005
  9. ncbi request reprint Accelerators increase permeability of cuticles for the lipophilic solutes metribuzin and iprovalicarb but not for hydrophilic methyl glucose
    Tuansheng Shi
    Institute of Vegetable and Fruit Science, University of Hannover, Am Steinberg 3, 31157 Sarstedt, Germany
    J Agric Food Chem 53:2609-15. 2005
  10. ncbi request reprint Effects of accelerators on mobility of 14C-2,4-dichlorophenoxy butyric acid in plant cuticles depends on type and concentration of accelerator
    Tuansheng Shi
    Institute of Vegetable and Fruit Science, University of Hannover, Am Steinberg 3, 31157 Sarstedt, Germany
    J Agric Food Chem 53:2207-12. 2005

Collaborators

Detail Information

Publications11

  1. ncbi request reprint Calcium chloride penetrates plant cuticles via aqueous pores
    J Schönherr
    Abteilung Obstbau, Institut für Gemüse und Obstbau, Universitat Hannover, Sarstedt, Germany
    Planta 212:112-8. 2000
    ..By comparing these results with the well established transport properties of the lipophilic pathway it is concluded that calcium chloride hexahydrate penetrated cuticular membranes via aqueous pores...
  2. ncbi request reprint A mechanistic analysis of penetration of glyphosate salts across astomatous cuticular membranes
    Jörg Schönherr
    Institute of Vegetable and Fruit Science, University of Hannover, Am Steinberg 3, 31157 Sarstedt, Germany
    Pest Manag Sci 58:343-51. 2002
    ..26 and 2.92 kJ mole-1, respectively. These results are interpreted as evidence for penetration of glyphosate salts in aqueous pores...
  3. ncbi request reprint Characterization of aqueous pores in plant cuticles and permeation of ionic solutes
    Jörg Schönherr
    Fruit Science Division, Institute of Vegetable and Fruit Science, University of Hannover, Herrenhauser Strasse 2, D 30419 Hannover, Germany
    J Exp Bot 57:2471-91. 2006
    ..This shows that penetration of ionic compounds can be fairly rapid, and ions with molecular weights of up to 800 g mol(-1) can penetrate cuticles that possess aqueous pores...
  4. ncbi request reprint Rates of foliar penetration of chelated Fe(III): role of light, stomata, species, and leaf age
    Thomas K Schlegel
    Institute of Biological Production Systems, Fruit Science Division, University of Hannover, Herrenhauser Strasse 2, 30419 Hannover, Germany
    J Agric Food Chem 54:6809-13. 2006
    ..Consequences of these results for foliar applications of Fe chelates are discussed...
  5. ncbi request reprint Interactions of calcium ions with weakly acidic active ingredients slow cuticular penetration: a case study with glyphosate
    Jörg Schönherr
    Institute of Vegetable and Fruit Science, University of Hannover, Am Steinberg 3, 31157 Sarstedt, Germany
    J Agric Food Chem 52:6546-51. 2004
    ..It is argued that other pesticides and hormones with carboxyl functions are likely to respond to Ca2+ ions in a similar fashion. In all of these cases, ammonium oxalate is expected to overcome hard water antagonism...
  6. ncbi request reprint Size selectivity of aqueous pores in astomatous cuticular membranes isolated from Populus canescens (Aiton) Sm. leaves
    Jörg Schönherr
    Institute of Vegetable and Fruit Science, University of Hannover, Am Steinberg 3, 31157, Sarstedt, Germany
    Planta 219:405-11. 2004
    ..This indicates that formulating large solutes as ionic species would be advantageous...
  7. ncbi request reprint Size selectivity of aqueous pores in stomatous cuticles of Vicia faba leaves
    Thomas K Schlegel
    Institute of Vegetable and Fruit Science, University of Hannover, Am Steinberg 3, 31157 Sarstedt, Germany
    Planta 221:648-55. 2005
    ..These findings suggest that active ingredients of pesticides, growth regulators and chemical inducers with high molecular weights penetrate leaves at higher rates when formulated as ions...
  8. ncbi request reprint Rates of cuticular penetration of chelated Fe(III): role of humidity, concentration, adjuvants, temperature, and type of chelate
    Jörg Schönherr
    Institute of Vegetable and Fruit Science, University of Hannover, Am Steinberg 3, 31157 Sarstedt, Germany
    J Agric Food Chem 53:4484-92. 2005
    ..High humidity in stagnant air layers may favor penetration rates across stomatous leaf surfaces when humidity in bulk air is below 100%...
  9. ncbi request reprint Accelerators increase permeability of cuticles for the lipophilic solutes metribuzin and iprovalicarb but not for hydrophilic methyl glucose
    Tuansheng Shi
    Institute of Vegetable and Fruit Science, University of Hannover, Am Steinberg 3, 31157 Sarstedt, Germany
    J Agric Food Chem 53:2609-15. 2005
    ..An alternative pathway of unknown properties is suggested. It is speculated that C(12)E(6) and C(12)E(8) sorbed in cuticles might have generated a polar pathway for MG...
  10. ncbi request reprint Effects of accelerators on mobility of 14C-2,4-dichlorophenoxy butyric acid in plant cuticles depends on type and concentration of accelerator
    Tuansheng Shi
    Institute of Vegetable and Fruit Science, University of Hannover, Am Steinberg 3, 31157 Sarstedt, Germany
    J Agric Food Chem 53:2207-12. 2005
    ..These data are discussed with regard to suitability of these accelerators for formulating systemic pesticides...
  11. ncbi request reprint An in vitro study on the postinfection activities of copper hydroxide and copper sulfate against conidia of Venturia inaequalis
    Jurith Montag
    Institute of Vegetable and Fruit Science, Fruit Science Division, University of Hannover, Herrenhauser Strasse 2, D 30419 Hannover, Germany
    J Agric Food Chem 54:893-9. 2006
    ..Hence, for Cu(OH)2 to exert postinfection activity, leaves must be wet. In the field, this cannot be guaranteed and a postinfection application of Cu(OH)2 cannot be recommended...