Plant Aging pp 225-229 | Cite as

Nutrient Remobilization, Nitrogen Metabolism and Chloroplast Gene Expression in Senescent Leaves

  • Bartolomé Sabater
  • Antonio Vera
  • Rafael Tomás
  • Mercedes Martin
Part of the NATO ASI Series book series (NSSA, volume 186)


Along plant ontogeny a continuous traffic of nutrients ensures the recovery of most nutrients from old structures to young, developing, structures (Sabater, 1985). Leaves accumulate the major percentage of nutrients thus, the remobilization of components during leaf senescence is essential for nutrient economy in the plant. The remobilization implies the activation of several hydrolytic enzymes (Sabater and Rodriguez, 1978; Thomas and Stoddard, 1980) and other activities, mainly related to amino acid metabolism (Calle et al., 1986; Cuello and Sabater, 1982; Peoples et al., 1980), which form exportable low size nutrient molecules.


Leaf Senescence Chloroplast Genome NADH Dehydrogenase Senescent Leaf Barley Leave 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Plenum Press, New York 1990

Authors and Affiliations

  • Bartolomé Sabater
    • 1
  • Antonio Vera
    • 1
  • Rafael Tomás
    • 1
  • Mercedes Martin
    • 1
  1. 1.Departamento de Biología VegetalUniversidad de Alcalá de HenaresMadridSpain

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