Iron Nutrition in Soils and Plants

1. Front Matter

   Pages I-XII

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2. Leaf spray with Ti(IV) ascorbate improves the iron uptake and iron activity in Capsicum annuum L. plants

   • Micaela Carvajal, Francisco Martínez-Sanchez, Joaquín J. Pastor, Carlos F. Alcaraz

   Pages 1-5

3. Chemical reactions in soils that affect iron availability to plants. A quantative approach

   • W.L. Lindsay

   Pages 7-14

4. Selection of the soil Fe test most reliable in central Europe

   • H. Gembarzewski

   Pages 15-18

5. Function of iron in plants with special emphasis on chloroplasts and photosynthetic activity

   • G. W. Miller, I. Jen Huang, G. W. Welkie, J. C. Pushnik

   Pages 19-28

6. Purification and characterization of nicotianamine synthase from Fe-deficient barley roots

   • Kyoko Higuchi, Kenji Kanazawa, Naoko-Kishi Nishizawa, Mitsuo Chino, Satoshi Mori

   Pages 29-35

7. Inductions of two enzyme activities involved in the biosynthesis of mugineic acid in Fe-deficient barley roots

   • Kenji Kanazawa, Kyoko Higuchi, Shinji Fushiya, Naoko-Kishi Nishizawa, Mitsuo Chino, Satoshi Mori

   Pages 37-41

8. Phloem translocation of Fe, Cu, Mn, and Zn in Ricinus seedlings in relation to the concentrations of nicotianamine, an endogenous chelator of divalent metal ions, in different seedling parts

   • Udo W. Stephan, Ilka Schmidke, Axel Pich

   Pages 43-50

9. Iron-dependent changes of heavy metals, nicotianamine, and citrate in different plant organs and in the xylem exudate of two tomato genotypes. Nicotianamine as possible copper translocator

   • Axel Pich, Günter Scholz, Udo W. Stephan

   Pages 51-58

10. Modification of the growth and the competitiveness of a Bradyrhizobium strain obtained through affecting its siderophore-producing ability

    • D. Lesueur, M. del Carro Rio, H.G. Diem

    Pages 59-66

11. Transfer cell formation in sugar beet roots induced by latent Fe deficiency

    • Ernst-Christian Landsberg

    Pages 67-75

12. Effects of various inhibitors on in vivo reduction by Plantago lanceolata L. roots

    • Wolfgang Schmidt

    Pages 77-82

13. Effect of some biological methods to improve Fe-efficiency in grafted grapevine

    • L. Bavaresco, M. Fregoni, C. Fogher

    Pages 83-89

14. Environmental aspects of sewage sludge and evaluation of super absorbent hydrogel under Egyptian conditions

    • F. Awad, L. Kahl, R. Kluge

    Pages 91-97

15. Effect of root exudates on mobilization in the rhizosphere and uptake of iron by wheat plants

    • F. Awad, V. Römheld, H. Marschner

    Pages 99-104

16. Iron availability, electrochemical changes and nutrient content of rice as influenced by green manuring in a submerged soil

    • U.S. Sadana, D.S. Chahal

    Pages 105-109

17. On-farm performance of groundnut genotypes under different land configurations and foliar iron sprays for the correction of iron chlorosis on calcareous soils in India

    • M.V. Potdar, M.M. Anders

    Pages 111-118

18. Strategies for the genetic improvement of Fe efficiency in plants

    • S.R. Cianzio

    Pages 119-125

19. Alkalinity-bicarbonate-calcium effects on iron chlorosis in white lupine in soilless culture

    • A. Pissaloux, P. Morard, G. Bertoni

    Pages 127-133

20. Influence of N, P and K treatments of several physiological and biochemical iron indicators in melon plants irrigated with brackish water

    • J.L. Valenzuela, J.J. Alvarado, A. Sánchez, L. Romero

    Pages 135-140

Iron is a major constituent of the earth crust. However, under alkaline conditions commonly found in arid and semi-arid environments iron becomes unavailable to plants. When plants are affected by a shortage of iron their leaves become yellow (chlorotic), and both plant growth and crop yield are reduced. The roots of plants affected by iron deficiency may develop a series of responses directed to improve iron uptake, such as increased proton excretion and iron reduction capabilities or excretion of iron chela tors called siderophores. Iron deficiency affects major crops worldwide, including some of major economic importance such as fruit trees and others. Correction of iron deficiency is usually implemented through costly application of synthetic chelates. Since these correction methods are very expensive, the competitivity of farmers is often reduced and iron deficiency may become a limiting factor for the maintenance, introduction or expansion of some crops. In spite of the many years devoted to the study of iron deficiency, the knowledge of iron deficiency in soils and plants is still fragmentary in many aspects. We have only incomplete information on the processes at the molecular level that make some plant species and cultivars unable to take and utilize iron from the soil, whereas other plants grow satisfactorily under the same conditions.

• Chloroplast
• Flora
• Oxide
• Phloem
• Transport
• Tree
• Vine
• Xylem
• algae
• bacteria
• biochemistry
• environment
• physiology
• soil
• temperature

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