Role of polyamines and ethylene as modulators of plant senescence

@article{Pandey2007RoleOP,
  title={Role of polyamines and ethylene as modulators of plant senescence},
  author={Subedar Pandey and S. A. Ranade and Pramod Kumar Nagar and Nikhil Ram Kumar},
  journal={Journal of Biosciences},
  year={2007},
  volume={25},
  pages={291-299}
}
Under optimal conditions of growth, senescence, a terminal phase of development, sets in after a certain physiological age. It is a dynamic and closely regulated developmental process which involves an array of changes at both physiological and biochemical levels including gene expression. A large number of biotic and abiotic factors accelerate the process. Convincing evidence suggests the involvement of polyamines (PAs) and ethylene in this process. Although the biosynthetic pathways of both… 
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